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DRUGS & SUPPLEMENTS
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How often in a day do you take medicine? How many times? |
Calcium (Calcium Chloride):
Cal-Paste (Calcium (Calcium Chloride)) acetate is a phosphate binder indicated to reduce serum phosphorus in patients with end stage renal disease (ESRD).
- Calcium acetate is a phosphate binder indicated for the reduction of serum phosphorus in patients with end stage renal disease. (1)
The recommended initial dose of Cal-Paste (Calcium (Calcium Chloride)) acetate for the adult dialysis patient is 2 capsules with each meal. Increase the dose gradually to lower serum phosphorus levels to the target range, as long as hypercalcemia does not develop. Most patients require 3 to 4 capsules with each meal.
- Starting dose is 2 capsules with each meal. (2)
- Titrate the dose every 2 to 3 weeks until acceptable serum phosphorus level is reached. Most patients require 3 to 4 capsules with each meal. (2)
Capsule: 667 mg Cal-Paste (Calcium (Calcium Chloride)) acetate capsule.
- Capsule: 667 mg Cal-Paste (Calcium (Calcium Chloride)) acetate capsule. (3)
Patients with hypercalcemia.
- Hypercalcemia. (4)
- Treat mild hypercalcemia by reducing or interrupting Cal-Paste ) acetate and Vitamin D. Severe hypercalcemia may require hemodialysis and discontinuation of Cal-Paste (Calcium (Calcium Chloride)) acetate. (5.1)
- Hypercalcemia may aggravate digitalis toxicity. (5.2)
Patients with end stage renal disease may develop hypercalcemia when treated with Cal-Paste (Calcium (Calcium Chloride)), including Cal-Paste (Calcium (Calcium Chloride)) acetate. Avoid the use of Cal-Paste (Calcium (Calcium Chloride)) supplements, including Cal-Paste (Calcium (Calcium Chloride)) based nonprescription antacids, concurrently with Cal-Paste (Calcium (Calcium Chloride)) acetate.
An overdose of Cal-Paste (Calcium (Calcium Chloride)) acetate may lead to progressive hypercalcemia, which may require emergency measures. Therefore, early in the treatment phase during the dosage adjustment period, monitor serum Cal-Paste (Calcium (Calcium Chloride)) levels twice weekly. Should hypercalcemia develop, reduce the Cal-Paste (Calcium (Calcium Chloride)) acetate dosage, or discontinue the treatment, depending on the severity of hypercalcemia
More severe hypercalcemia (Ca >12 mg/dL) is associated with confusion, delirium, stupor and coma. Severe hypercalcemia can be treated by acute hemodialysis and discontinuing Cal-Paste (Calcium (Calcium Chloride)) acetate therapy.
Mild hypercalcemia (10.5 to 11.9 mg/dL) may be asymptomatic or manifest as constipation, anorexia, nausea, and vomiting. Mild hypercalcemia is usually controlled by reducing the Cal-Paste (Calcium (Calcium Chloride)) acetate dose or temporarily discontinuing therapy. Decreasing or discontinuing Vitamin D therapy is recommended as well.
Chronic hypercalcemia may lead to vascular calcification and other soft-tissue calcification. Radiographic evaluation of suspected anatomical regions may be helpful in early detection of soft tissue calcification. The long term effect of Cal-Paste (Calcium (Calcium Chloride)) acetate on the progression of vascular or soft tissue calcification has not been determined.
Hypercalcemia (>11 mg/dL) was reported in 16% of patients in a 3 month study of solid dose formulation of Cal-Paste (Calcium (Calcium Chloride)) acetate; all cases resolved upon lowering the dose or discontinuing treatment.
Maintain the serum calcium-phosphorus (Ca x P) product below 55 mg2/dL2.
Hypercalcemia may aggravate digitalis toxicity.
Hypercalcemia is discussed elsewhere [see Warnings and Precautions ].
- The most common (>10%) adverse reactions are hypercalcemia, nausea and vomiting. (6.1)
- In clinical studies, patients have occasionally experienced nausea during Cal-Paste (Calcium (Calcium Chloride)) acetate therapy. (6)
To report SUSPECTED ADVERSE REACTIONS, contact West-Ward Pharmaceuticals Corp. at 1-800-962-8364 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
In clinical studies, Cal-Paste (Calcium (Calcium Chloride)) acetate has been generally well tolerated.
Cal-Paste (Calcium (Calcium Chloride)) acetate was studied in a 3 month, open-label, non-randomized study of 98 enrolled ESRD hemodialysis patients and an alternate liquid formulation of Cal-Paste (Calcium (Calcium Chloride)) acetate was studied in a two week double-blind, placebo-controlled, cross-over study with 69 enrolled ESRD hemodialysis patients. Adverse reactions (>2% on treatment) from these trials are presented in Table 1.
Preferred Term | Total adverse reactions reported for Cal-Paste (Calcium (Calcium Chloride)) acetate N=167 N (%) | 3 month, open label study of Cal-Paste (Calcium (Calcium Chloride)) acetate N=98 N (%) | Double blind, placebo-controlled, cross-over study of liquid Cal-Paste (Calcium (Calcium Chloride)) acetate N=69 | |
Cal-Paste (Calcium (Calcium Chloride)) acetate N (%) | Placebo N (%) | |||
Nausea | 6 (3.6) | 6 (6.1) | 0 (0) | 0 (0) |
Vomiting | 4 (2.4) | 4 (4.1) | 0 (0) | 0 (0) |
Hypercalcemia | 21 (12.6) | 16 (16.3) | 5 (7.2) | 0 (0) |
Mild hypercalcemia may be asymptomatic or manifest itself as constipation, anorexia, nausea, and vomiting. More severe hypercalcemia is associated with confusion, delirium, stupor, and coma. Decreasing dialysate Cal-Paste (Calcium (Calcium Chloride)) concentration could reduce the incidence and severity of Cal-Paste (Calcium (Calcium Chloride)) acetate-induced hypercalcemia. Isolated cases pruritus have been reported, which may represent allergic reactions.
Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to estimate their frequency or to establish a causal relationship to drug exposure.
The following additional adverse reactions have been identified during post-approval of Cal-Paste (Calcium (Calcium Chloride)) acetate: dizziness, edema, and weakness.
The drug interaction of Cal-Paste ) acetate is characterized by the potential of Cal-Paste (Calcium (Calcium Chloride)) to bind to drugs with anionic functions (e.g., carboxyl, and hydroxyl groups). Cal-Paste (Calcium (Calcium Chloride)) acetate may decrease the bioavailability of tetracyclines or fluoroquinolones via this mechanism.
There are no empirical data on avoiding drug interactions between Cal-Paste (Calcium (Calcium Chloride)) acetate and most concomitant drugs. When administering an oral medication with Cal-Paste (Calcium (Calcium Chloride)) acetate where a reduction in the bioavailability of that medication would have a clinically significant effect on its safety or efficacy, administer the drug one hour before or three hours after Cal-Paste (Calcium (Calcium Chloride)) acetate. Monitor blood levels of the concomitant drugs that have a narrow therapeutic range. Patients taking anti-arrhythmic medications for the control of arrhythmias and anti-seizure medications for the control of seizure disorders were excluded from the clinical trials with all forms of Cal-Paste (Calcium (Calcium Chloride)) acetate.
- Calcium acetate may decrease the bioavailability of tetracyclines or fluoroquinolones. (7)
- When clinically significant drug interactions are expected, administer the drug at least one hour before or at least three hours after Cal-Paste (Calcium (Calcium Chloride)) acetate or consider monitoring blood levels of the drug. (7)
In a study of 15 healthy subjects, a co-administered single dose of 4 Cal-Paste (Calcium (Calcium Chloride)) acetate tablets, approximately 2.7g, decreased the bioavailability of ciprofloxacin by approximately 50%.
Pregnancy Category C:
Cal-Paste ) acetate capsules contains Cal-Paste (Calcium (Calcium Chloride)) acetate. Animal reproduction studies have not been conducted with Cal-Paste (Calcium (Calcium Chloride)) acetate, and there are no adequate and well controlled studies of Cal-Paste (Calcium (Calcium Chloride)) acetate use in pregnant women. Patients with end stage renal disease may develop hypercalcemia with Cal-Paste (Calcium (Calcium Chloride)) acetate treatment [see Warnings and Precautions (5.1 ) ]. Maintenance of normal serum Cal-Paste (Calcium (Calcium Chloride)) levels is important for maternal and fetal well being. Hypercalcemia during pregnancy may increase the risk for maternal and neonatal complications such as stillbirth, preterm delivery, and neonatal hypocalcemia and hypoparathyroidism. Cal-Paste (Calcium (Calcium Chloride)) acetate treatment, as recommended, is not expected to harm a fetus if maternal Cal-Paste (Calcium (Calcium Chloride)) levels are properly monitored during and following treatment.
The effects of Cal-Paste (Calcium (Calcium Chloride)) acetate on labor and delivery are unknown.
Cal-Paste ) Acetate Capsules contains Cal-Paste (Calcium (Calcium Chloride)) acetate and is excreted in human milk. Human milk feeding by a mother receiving Cal-Paste (Calcium (Calcium Chloride)) acetate is not expected to harm an infant, provided maternal serum Cal-Paste (Calcium (Calcium Chloride)) levels are appropriately monitored.
Safety and effectiveness in pediatric patients have not been established.
Clinical studies of Cal-Paste (Calcium (Calcium Chloride)) acetate did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other clinical experience has not identified differences in responses between elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.
Administration of Cal-Paste (Calcium (Calcium Chloride)) acetate in excess of the appropriate daily dosage may result in hypercalcemia [see Warnings and Precautions (5.1)].
Cal-Paste (Calcium (Calcium Chloride)) acetate acts as a phosphate binder. Its chemical name is Cal-Paste (Calcium (Calcium Chloride)) acetate. Its molecular formula is C4H6CaO4, and its molecular weight is 158.17. Its structural formula is:
Each white opaque/blue opaque capsule contains 667 mg of Cal-Paste (Calcium (Calcium Chloride)) acetate USP (anhydrous; Ca(CH3COO)2; MW=158.17 grams) equal to 169 mg (8.45 mEq) Cal-Paste (Calcium (Calcium Chloride)), polyethylene glycol 8000 and magnesium stearate. Each capsule shell contains: black monogramming ink, FD&C Blue #1, FD&C Red #3, gelatin and titanium dioxide. The black monogramming ink contains: ammonium hydroxide, iron oxide black, isopropyl alcohol, n-butyl alcohol, propylene glycol and shellac glaze.
Cal-Paste (Calcium (Calcium Chloride)) Acetate Capsules are administered orally for the control of hyperphosphatemia in end-stage renal failure.
Patients with ESRD retain phosphorus and can develop hyperphosphatemia. High serum phosphorus can precipitate serum Cal-Paste ) resulting in ectopic calcification. Hyperphosphatemia also plays a role in the development of secondary hyperparathyroidism in patients with ESRD.
Cal-Paste (Calcium (Calcium Chloride)) acetate, when taken with meals, combines with dietary phosphate to form an insoluble Cal-Paste (Calcium (Calcium Chloride)) phosphate complex, which is excreted in the feces, resulting in decreased serum phosphorus concentration.
Orally administered Cal-Paste (Calcium (Calcium Chloride)) acetate from pharmaceutical dosage forms is systemically absorbed up to approximately 40% under fasting conditions and up to approximately 30% under nonfasting conditions. This range represents data from both healthy subjects and renal dialysis patients under various conditions.
No carcinogenicity, mutagenicity, or fertility studies have been conducted with Cal-Paste (Calcium (Calcium Chloride)) acetate.
Effectiveness of Cal-Paste (Calcium (Calcium Chloride)) acetate in decreasing serum phosphorus has been demonstrated in two studies of the Cal-Paste (Calcium (Calcium Chloride)) acetate solid oral dosage form.
Ninety-one patients with end-stage renal disease who were undergoing hemodialysis and were hyperphosphatemic (serum phosphorus >5.5 mg/dL) following a 1 week phosphate binder washout period contributed efficacy data to an open-label, non-randomized study.
The patients received Cal-Paste (Calcium (Calcium Chloride)) acetate 667 mg tablets at each meal for a period of 12 weeks. The initial starting dose was 2 tablets per meal for 3 meals a day, and the dose was adjusted as necessary to control serum phosphorus levels. The average final dose after 12 weeks of treatment was 3.4 tablets per meal. Although there was a decrease in serum phosphorus, in the absence of a control group the true magnitude of effect is uncertain.
The data presented in Table 2 demonstrate the efficacy of Cal-Paste (Calcium (Calcium Chloride)) acetate in the treatment of hyperphosphatemia in end-stage renal disease patients. The effects on serum Cal-Paste (Calcium (Calcium Chloride)) levels are also presented.
* Ninety-one patients completed at least 6 weeks of the study. † ANOVA of difference in values at pre-study and study completion. ‡ Values expressed as mean ± SE. | |||||
Parameter | Pre-Study | Week 4* | Week 8 | Week 12 | p-value† |
Phosphorus (mg/dL)‡ | 7.4 ± 0.17 | 5.9 ± 0.16 | 5.6 ± 0.17 | 5.2 ± 0.17 | ≤0.01 |
Cal-Paste (Calcium (Calcium Chloride)) (mg/dL)‡ | 8.9 ± 0.09 | 9.5 ± 0.10 | 9.7 ± 0.10 | 9.7 ± 0.10 | ≤0.01 |
There was a 30% decrease in serum phosphorus levels during the 12 week study period (p<0.01). Two-thirds of the decline occurred in the first month of the study. Serum Cal-Paste (Calcium (Calcium Chloride)) increased 9% during the study mostly in the first month of the study.
Treatment with the phosphate binder was discontinued for patients from the open-label study, and those patients whose serum phosphorus exceeded 5.5 mg/dL were eligible for entry into a double-blind, placebo-controlled, cross-over study. Patients were randomized to receive Cal-Paste (Calcium (Calcium Chloride)) acetate or placebo, and each continued to receive the same number of tablets as had been individually established during the previous study. Following 2 weeks of treatment, patients switched to the alternative therapy for an additional 2 weeks.
The phosphate binding effect of Cal-Paste (Calcium (Calcium Chloride)) acetate is shown in the Table 3.
* ANOVA of Cal-Paste (Calcium (Calcium Chloride)) acetate vs. placebo after 2 weeks of treatment. † Values expressed as mean ± SEM. | ||||
Parameter | Pre-Study | Post-Treatment | p-value* | |
Cal-Paste (Calcium (Calcium Chloride)) Acetate | Placebo | |||
Phosphorus (mg/dL)† | 7.3 ± 0.18 | 5.9 ± 0.24 | 7.8 ± 0.22 | <0.01 |
Cal-Paste (Calcium (Calcium Chloride)) (mg/dL)† | 8.9 ± 0.11 | 9.5 ± 0.13 | 8.8 ± 0.12 | <0.01 |
Overall, 2 weeks of treatment with Cal-Paste (Calcium (Calcium Chloride)) acetate statistically significantly (p<0.01) decreased serum phosphorus by a mean of 19% and increased serum Cal-Paste (Calcium (Calcium Chloride)) by a statistically significant (p<0.01) but clinically unimportant mean of 7%.
Cal-Paste (Calcium (Calcium Chloride)) Acetate Capsules
667 mg capsule is supplied as a white opaque/blue opaque capsule, imprinted with “54 215” on the cap and body.
NDC 0615-2303-39: Blistercards of 30 Capsules
NDC 0615-2303-30: Unit-dose Boxes of 30 Capsules
STORAGE
Store at 20° to 25°C (68° to 77°F).
Inform patients to take Cal-Paste (Calcium (Calcium Chloride)) acetate capsules with meals, adhere to their prescribed diets, and avoid the use of Cal-Paste (Calcium (Calcium Chloride)) supplements including nonprescription antacids. Inform the patients about the symptoms of hypercalcemia [see Warnings and Precautions (5.1) and Adverse Reactions (6.1) ].
Advise patients who are taking an oral medication where reduction in the bioavailability of that medication would have clinically significant effect on its safety or efficacy to take the drug one hour before or three hours after Cal-Paste (Calcium (Calcium Chloride)) acetate capsules.
Distr. by: West-Ward
Pharmaceuticals Corp.
Eatontown, NJ 07724
10003705/05
Revised April 2016
Calcium (Calcium Phosphate Dibasic):
Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate is a phosphate binder indicated to reduce serum phosphorus in patients with end stage renal disease (ESRD).
- Calcium acetate is a phosphate binder indicated for the reduction of serum phosphorus in patients with end stage renal disease. (1)
The recommended initial dose of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate for the adult dialysis patient is 2 capsules with each meal. Increase the dose gradually to lower serum phosphorus levels to the target range, as long as hypercalcemia does not develop. Most patients require 3 to 4 capsules with each meal.
- Starting dose is 2 capsules with each meal. (2)
- Titrate the dose every 2 to 3 weeks until acceptable serum phosphorus level is reached. Most patients require 3 to 4 capsules with each meal. (2)
Capsule: 667 mg Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate capsule.
- Capsule: 667 mg Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate capsule. (3)
Patients with hypercalcemia.
- Hypercalcemia. (4)
- Treat mild hypercalcemia by reducing or interrupting Cal-Paste ) acetate and Vitamin D. Severe hypercalcemia may require hemodialysis and discontinuation of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate. (5.1)
- Hypercalcemia may aggravate digitalis toxicity. (5.2)
Patients with end stage renal disease may develop hypercalcemia when treated with Cal-Paste (Calcium (Calcium Phosphate Dibasic)), including Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate. Avoid the use of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) supplements, including Cal-Paste (Calcium (Calcium Phosphate Dibasic)) based nonprescription antacids, concurrently with Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate.
An overdose of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate may lead to progressive hypercalcemia, which may require emergency measures. Therefore, early in the treatment phase during the dosage adjustment period, monitor serum Cal-Paste (Calcium (Calcium Phosphate Dibasic)) levels twice weekly. Should hypercalcemia develop, reduce the Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate dosage, or discontinue the treatment, depending on the severity of hypercalcemia
More severe hypercalcemia (Ca >12 mg/dL) is associated with confusion, delirium, stupor and coma. Severe hypercalcemia can be treated by acute hemodialysis and discontinuing Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate therapy.
Mild hypercalcemia (10.5 to 11.9 mg/dL) may be asymptomatic or manifest as constipation, anorexia, nausea, and vomiting. Mild hypercalcemia is usually controlled by reducing the Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate dose or temporarily discontinuing therapy. Decreasing or discontinuing Vitamin D therapy is recommended as well.
Chronic hypercalcemia may lead to vascular calcification and other soft-tissue calcification. Radiographic evaluation of suspected anatomical regions may be helpful in early detection of soft tissue calcification. The long term effect of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate on the progression of vascular or soft tissue calcification has not been determined.
Hypercalcemia (>11 mg/dL) was reported in 16% of patients in a 3 month study of solid dose formulation of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate; all cases resolved upon lowering the dose or discontinuing treatment.
Maintain the serum calcium-phosphorus (Ca x P) product below 55 mg2/dL2.
Hypercalcemia may aggravate digitalis toxicity.
Hypercalcemia is discussed elsewhere [see Warnings and Precautions ].
- The most common (>10%) adverse reactions are hypercalcemia, nausea and vomiting. (6.1)
- In clinical studies, patients have occasionally experienced nausea during Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate therapy. (6)
To report SUSPECTED ADVERSE REACTIONS, contact West-Ward Pharmaceuticals Corp. at 1-800-962-8364 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
In clinical studies, Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate has been generally well tolerated.
Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate was studied in a 3 month, open-label, non-randomized study of 98 enrolled ESRD hemodialysis patients and an alternate liquid formulation of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate was studied in a two week double-blind, placebo-controlled, cross-over study with 69 enrolled ESRD hemodialysis patients. Adverse reactions (>2% on treatment) from these trials are presented in Table 1.
Preferred Term | Total adverse reactions reported for Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate N=167 N (%) | 3 month, open label study of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate N=98 N (%) | Double blind, placebo-controlled, cross-over study of liquid Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate N=69 | |
Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate N (%) | Placebo N (%) | |||
Nausea | 6 (3.6) | 6 (6.1) | 0 (0) | 0 (0) |
Vomiting | 4 (2.4) | 4 (4.1) | 0 (0) | 0 (0) |
Hypercalcemia | 21 (12.6) | 16 (16.3) | 5 (7.2) | 0 (0) |
Mild hypercalcemia may be asymptomatic or manifest itself as constipation, anorexia, nausea, and vomiting. More severe hypercalcemia is associated with confusion, delirium, stupor, and coma. Decreasing dialysate Cal-Paste (Calcium (Calcium Phosphate Dibasic)) concentration could reduce the incidence and severity of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate-induced hypercalcemia. Isolated cases pruritus have been reported, which may represent allergic reactions.
Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to estimate their frequency or to establish a causal relationship to drug exposure.
The following additional adverse reactions have been identified during post-approval of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate: dizziness, edema, and weakness.
The drug interaction of Cal-Paste ) acetate is characterized by the potential of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) to bind to drugs with anionic functions (e.g., carboxyl, and hydroxyl groups). Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate may decrease the bioavailability of tetracyclines or fluoroquinolones via this mechanism.
There are no empirical data on avoiding drug interactions between Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate and most concomitant drugs. When administering an oral medication with Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate where a reduction in the bioavailability of that medication would have a clinically significant effect on its safety or efficacy, administer the drug one hour before or three hours after Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate. Monitor blood levels of the concomitant drugs that have a narrow therapeutic range. Patients taking anti-arrhythmic medications for the control of arrhythmias and anti-seizure medications for the control of seizure disorders were excluded from the clinical trials with all forms of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate.
- Calcium acetate may decrease the bioavailability of tetracyclines or fluoroquinolones. (7)
- When clinically significant drug interactions are expected, administer the drug at least one hour before or at least three hours after Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate or consider monitoring blood levels of the drug. (7)
In a study of 15 healthy subjects, a co-administered single dose of 4 Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate tablets, approximately 2.7g, decreased the bioavailability of ciprofloxacin by approximately 50%.
Pregnancy Category C:
Cal-Paste ) acetate capsules contains Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate. Animal reproduction studies have not been conducted with Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate, and there are no adequate and well controlled studies of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate use in pregnant women. Patients with end stage renal disease may develop hypercalcemia with Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate treatment [see Warnings and Precautions (5.1 ) ]. Maintenance of normal serum Cal-Paste (Calcium (Calcium Phosphate Dibasic)) levels is important for maternal and fetal well being. Hypercalcemia during pregnancy may increase the risk for maternal and neonatal complications such as stillbirth, preterm delivery, and neonatal hypocalcemia and hypoparathyroidism. Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate treatment, as recommended, is not expected to harm a fetus if maternal Cal-Paste (Calcium (Calcium Phosphate Dibasic)) levels are properly monitored during and following treatment.
The effects of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate on labor and delivery are unknown.
Cal-Paste ) Acetate Capsules contains Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate and is excreted in human milk. Human milk feeding by a mother receiving Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate is not expected to harm an infant, provided maternal serum Cal-Paste (Calcium (Calcium Phosphate Dibasic)) levels are appropriately monitored.
Safety and effectiveness in pediatric patients have not been established.
Clinical studies of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other clinical experience has not identified differences in responses between elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.
Administration of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate in excess of the appropriate daily dosage may result in hypercalcemia [see Warnings and Precautions (5.1)].
Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate acts as a phosphate binder. Its chemical name is Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate. Its molecular formula is C4H6CaO4, and its molecular weight is 158.17. Its structural formula is:
Each white opaque/blue opaque capsule contains 667 mg of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate USP (anhydrous; Ca(CH3COO)2; MW=158.17 grams) equal to 169 mg (8.45 mEq) Cal-Paste (Calcium (Calcium Phosphate Dibasic)), polyethylene glycol 8000 and magnesium stearate. Each capsule shell contains: black monogramming ink, FD&C Blue #1, FD&C Red #3, gelatin and titanium dioxide. The black monogramming ink contains: ammonium hydroxide, iron oxide black, isopropyl alcohol, n-butyl alcohol, propylene glycol and shellac glaze.
Cal-Paste (Calcium (Calcium Phosphate Dibasic)) Acetate Capsules are administered orally for the control of hyperphosphatemia in end-stage renal failure.
Patients with ESRD retain phosphorus and can develop hyperphosphatemia. High serum phosphorus can precipitate serum Cal-Paste ) resulting in ectopic calcification. Hyperphosphatemia also plays a role in the development of secondary hyperparathyroidism in patients with ESRD.
Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate, when taken with meals, combines with dietary phosphate to form an insoluble Cal-Paste (Calcium (Calcium Phosphate Dibasic)) phosphate complex, which is excreted in the feces, resulting in decreased serum phosphorus concentration.
Orally administered Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate from pharmaceutical dosage forms is systemically absorbed up to approximately 40% under fasting conditions and up to approximately 30% under nonfasting conditions. This range represents data from both healthy subjects and renal dialysis patients under various conditions.
No carcinogenicity, mutagenicity, or fertility studies have been conducted with Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate.
Effectiveness of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate in decreasing serum phosphorus has been demonstrated in two studies of the Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate solid oral dosage form.
Ninety-one patients with end-stage renal disease who were undergoing hemodialysis and were hyperphosphatemic (serum phosphorus >5.5 mg/dL) following a 1 week phosphate binder washout period contributed efficacy data to an open-label, non-randomized study.
The patients received Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate 667 mg tablets at each meal for a period of 12 weeks. The initial starting dose was 2 tablets per meal for 3 meals a day, and the dose was adjusted as necessary to control serum phosphorus levels. The average final dose after 12 weeks of treatment was 3.4 tablets per meal. Although there was a decrease in serum phosphorus, in the absence of a control group the true magnitude of effect is uncertain.
The data presented in Table 2 demonstrate the efficacy of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate in the treatment of hyperphosphatemia in end-stage renal disease patients. The effects on serum Cal-Paste (Calcium (Calcium Phosphate Dibasic)) levels are also presented.
* Ninety-one patients completed at least 6 weeks of the study. † ANOVA of difference in values at pre-study and study completion. ‡ Values expressed as mean ± SE. | |||||
Parameter | Pre-Study | Week 4* | Week 8 | Week 12 | p-value† |
Phosphorus (mg/dL)‡ | 7.4 ± 0.17 | 5.9 ± 0.16 | 5.6 ± 0.17 | 5.2 ± 0.17 | ≤0.01 |
Cal-Paste (Calcium (Calcium Phosphate Dibasic)) (mg/dL)‡ | 8.9 ± 0.09 | 9.5 ± 0.10 | 9.7 ± 0.10 | 9.7 ± 0.10 | ≤0.01 |
There was a 30% decrease in serum phosphorus levels during the 12 week study period (p<0.01). Two-thirds of the decline occurred in the first month of the study. Serum Cal-Paste (Calcium (Calcium Phosphate Dibasic)) increased 9% during the study mostly in the first month of the study.
Treatment with the phosphate binder was discontinued for patients from the open-label study, and those patients whose serum phosphorus exceeded 5.5 mg/dL were eligible for entry into a double-blind, placebo-controlled, cross-over study. Patients were randomized to receive Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate or placebo, and each continued to receive the same number of tablets as had been individually established during the previous study. Following 2 weeks of treatment, patients switched to the alternative therapy for an additional 2 weeks.
The phosphate binding effect of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate is shown in the Table 3.
* ANOVA of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate vs. placebo after 2 weeks of treatment. † Values expressed as mean ± SEM. | ||||
Parameter | Pre-Study | Post-Treatment | p-value* | |
Cal-Paste (Calcium (Calcium Phosphate Dibasic)) Acetate | Placebo | |||
Phosphorus (mg/dL)† | 7.3 ± 0.18 | 5.9 ± 0.24 | 7.8 ± 0.22 | <0.01 |
Cal-Paste (Calcium (Calcium Phosphate Dibasic)) (mg/dL)† | 8.9 ± 0.11 | 9.5 ± 0.13 | 8.8 ± 0.12 | <0.01 |
Overall, 2 weeks of treatment with Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate statistically significantly (p<0.01) decreased serum phosphorus by a mean of 19% and increased serum Cal-Paste (Calcium (Calcium Phosphate Dibasic)) by a statistically significant (p<0.01) but clinically unimportant mean of 7%.
Cal-Paste (Calcium (Calcium Phosphate Dibasic)) Acetate Capsules
667 mg capsule is supplied as a white opaque/blue opaque capsule, imprinted with “54 215” on the cap and body.
NDC 0615-2303-39: Blistercards of 30 Capsules
NDC 0615-2303-30: Unit-dose Boxes of 30 Capsules
STORAGE
Store at 20° to 25°C (68° to 77°F).
Inform patients to take Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate capsules with meals, adhere to their prescribed diets, and avoid the use of Cal-Paste (Calcium (Calcium Phosphate Dibasic)) supplements including nonprescription antacids. Inform the patients about the symptoms of hypercalcemia [see Warnings and Precautions (5.1) and Adverse Reactions (6.1) ].
Advise patients who are taking an oral medication where reduction in the bioavailability of that medication would have clinically significant effect on its safety or efficacy to take the drug one hour before or three hours after Cal-Paste (Calcium (Calcium Phosphate Dibasic)) acetate capsules.
Distr. by: West-Ward
Pharmaceuticals Corp.
Eatontown, NJ 07724
10003705/05
Revised April 2016
Copper (Copper Sulfate):
Water-Resistant Protection Without Bandaging
Recommended as an Aid in Treating Horses and Ponies With Thrush Due to Organisms Susceptible to Cal-Paste (Copper (Copper Sulfate)) Naphthenate.
For Animal Use Only.
ThrushTox® is indicated in the treatment of thrush in horses and ponies.
Clean the hoof thoroughly, removing debris and necrotic material prior to application of Cal-Paste (Copper (Copper Sulfate))®. Apply daily to affected hoofs with a narrow paint brush (about 1”) until fully healed. Caution: Do not allow runoff of excess Cal-Paste (Copper (Copper Sulfate))® onto hair since contact with Cal-Paste (Copper (Copper Sulfate))® may cause some hair loss. Do not contaminate feed.
NOTE: Cal-Paste (Copper (Copper Sulfate))® is easily removed from hands, clothing and surfaces with light grade fuel oil or any type of lighter fluid.
CONTAINS FOIL SEAL – REMOVE BEFORE USE.
SHAKE WELL BEFORE USE.
To report suspected adverse reactions or to obtain technical assistance, call 1-800-650-4899.
Cal-Paste (Copper (Copper Sulfate)) Naphthenate...37.5% w/w
Inert Ingredients...62.5% w/w
Total... 100.0%
Do not use in horses intended for human consumption.
CAUTION: COMBUSTIBLE MIXTURE.
Use in a well-ventilated place. Avoid fire, flame, sparks or heaters.
If swallowed, do not induce vomiting, call physician immediately. Avoid breathing vapor. Avoid contact with skin and eyes.
KEEP OUT OF REACH OF CHILDREN AND PETS.
Store at controlled room temperature 15º to 30ºC (59º to 86ºF). Keep container tightly closed when not in use.
Manufactured for:
Aspen Veterinary Resources,® Ltd.
Liberty, MO 64068, USA
FC163FP 11/13
Manufactured by:
First Priority, Inc.
Elgin, IL 60123-1146, USA
16 OZ (473 mL)
ANADA 200-304, Approved by FDA
Image of 473 mL bottle/case label
Magnesium Sulfate:
Cal-Paste (Magnesium Sulfate)
Injection, USP
Ansyr Plastic Syringe
Rx only
Cal-Paste (Magnesium Sulfate) Injection, USP is a sterile solution of Cal-Paste (Magnesium Sulfate) heptahydrate in Water for Injection, USP administered by the intravenous or intramuscular routes as an electrolyte replenisher or anticonvulsant. Must be diluted before intravenous use. May contain sulfuric acid and/or sodium hydroxide for pH adjustment. The pH is 5.5 to 7.0. The 50% concentration has an osmolarity of 4.06 mOsmol/mL (calc.).
The solution contains no bacteriostat, antimicrobial agent or added buffer (except for pH adjustment) and is intended only for use as a single-dose injection. When smaller doses are required the unused portion should be discarded with the entire unit.
Cal-Paste (Magnesium Sulfate), USP heptahydrate is chemically designated MgSO4 - 7H2O with molecular weight of 246.48 and occurs as colorless crystals or white powder freely soluble in water.
The plastic syringe is molded from a specially formulated polypropylene. Water permeates from inside the container at an extremely slow rate which will have an insignificant effect on solution concentration over the expected shelf life. Solutions in contact with the plastic container may leach out certain chemical components from the plastic in very small amounts; however, biological testing was supportive of the safety of the syringe material.
Magnesium (Mg++) is an important cofactor for enzymatic reactions and plays an important role in neurochemical transmission and muscular excitability.
As a nutritional adjunct in hyperalimentation, the precise mechanism of action for magnesium is uncertain. Early symptoms of hypomagnesemia (less than 1.5 mEq/liter) may develop as early as three to four days or within weeks.
Predominant deficiency effects are neurological, e.g., muscle irritability, clonic twitching and tremors. Hypocalcemia and hypokalemia often follow low serum levels of magnesium. While there are large stores of magnesium present intracellularly and in the bones of adults, these stores often are not mobilized sufficiently to maintain plasma levels. Parenteral magnesium therapy repairs the plasma deficit and causes deficiency symptoms and signs to cease.
Magnesium prevents or controls convulsions by blocking neuromuscular transmission and decreasing the amount of acetylcholine liberated at the end plate by the motor nerve impulse. Magnesium is said to have a depressant effect on the central nervous system (CNS), but it does not adversely affect the woman, fetus or neonate when used as directed in eclampsia or pre-eclampsia. Normal plasma magnesium levels range from 1.5 to 2.5 mEq/liter.
As plasma magnesium rises above 4 mEq/liter, the deep tendon reflexes are first decreased and then disappear as the plasma level approaches 10 mEq/liter. At this level respiratory paralysis may occur. Heart block also may occur at this or lower plasma levels of magnesium. Serum magnesium concentrations in excess of 12 mEq/L may be fatal.
Magnesium acts peripherally to produce vasodilation. With low doses only flushing and sweating occur, but larger doses cause lowering of blood pressure. The central and peripheral effects of magnesium poisoning are antagonized to some extent by intravenous administration of calcium.
Pharmacokinetics
With intravenous administration the onset of anticonvulsant action is immediate and lasts about 30 minutes. Following intramuscular administration the onset of action occurs in about one hour and persists for three to four hours. Effective anticonvulsant serum levels range from 2.5 to 7.5 mEq/liter. Magnesium is excreted solely by the kidneys at a rate proportional to the plasma concentration and glomerular filtration.
Cal-Paste (Magnesium Sulfate) Injection, USP is suitable for replacement therapy in magnesium deficiency, especially in acute hypomagnesemia accompanied by signs of tetany similar to those observed in hypocalcemia. In such cases, the serum magnesium (Mg++) level is usually below the lower limit of normal (1.5 to 2.5 mEq/liter) and the serum calcium (Ca++) level is normal (4.3 to 5.3 mEq/liter) or elevated.
In total parenteral nutrition (TPN), Cal-Paste (Magnesium Sulfate) may be added to the nutrient admixture to correct or prevent hypomagnesemia which can arise during the course of therapy.
Cal-Paste (Magnesium Sulfate) Injection, USP is also indicated for the prevention and control of seizures (convulsions) in pre-eclampsia and eclampsia, respectively.
Parenteral administration of the drug is contraindicated in patients with heart block or myocardial damage.
FETAL HARM: Continuous administration of Cal-Paste (Magnesium Sulfate) beyond 5 to 7 days to pregnant women can lead to hypocalcemia and bone abnormalities in the developing fetus. These bone abnormalities include skeletal demineralization and osteopenia. In addition, cases of neonatal fracture have been reported. The shortest duration of treatment that can lead to fetal harm is not known. Cal-Paste (Magnesium Sulfate) should be used during pregnancy only if clearly needed. If Cal-Paste (Magnesium Sulfate) is given for treatment of preterm labor, the woman should be informed that the efficacy and safety of such use have not been established and that use of Cal-Paste (Magnesium Sulfate) beyond 5 to 7 days may cause fetal abnormalities.
ALUMINUM TOXICITY: This product contains aluminum that may be toxic. Aluminum may reach toxic levels with prolonged parenteral administration if kidney function is impaired. Premature neonates are particularly at risk because their kidneys are immature, and they require large amounts of calcium and phosphate solutions, which contain aluminum.
Research indicates that patients with impaired kidney function, including premature neonates, who receive parenteral levels of aluminum at greater than 4 to 5 mcg/kg/day accumulate aluminum at levels associated with central nervous system and bone toxicity. Tissue loading may occur at even lower rates of administration.
Parenteral use in the presence of renal insufficiency may lead to magnesium intoxication. Intravenous use in the eclampsia should be reserved for immediate control of life-threatening convulsions.
General
Administer with caution if flushing and sweating occurs. When barbiturates, narcotics or other hypnotics (or systemic anesthetics) are to be given in conjunction with magnesium, their dosage should be adjusted with caution because of additive CNS depressant effects of magnesium.
Because magnesium is removed from the body solely by the kidneys, the drug should be used with caution in patients with renal impairment. Urine output should be maintained at a level of 100 mL or more during the four hours preceding each dose. Monitoring serum magnesium levels and the patient's clinical status is essential to avoid the consequences of overdosage in toxemia. Clinical indications of a safe dosage regimen include the presence of the patellar reflex (knee jerk) and absence of respiratory depression (approximately 16 breaths or more/minute). When repeated doses of the drug are given parenterally, knee jerk reflexes should be tested before each dose and if they are absent, no additional magnesium should be given until they return. Serum magnesium levels usually sufficient to control convulsions range from 3 to 6 mg/100 mL (2.5 to 5 mEq/liter). The strength of the deep tendon reflexes begins to diminish when magnesium levels exceed 4 mEq/liter. Reflexes may be absent at 10 mEq magnesium/liter, where respiratory paralysis is a potential hazard. An injectable calcium salt should be immediately available to counteract the potential hazards of magnesium intoxication in eclampsia.
50% Cal-Paste (Magnesium Sulfate) Injection, USP must be diluted to a concentration of 20% or less prior to intravenous infusion. Rate of administration should be slow and cautious, to avoid producing hypermagnesemia. The 50% solution also should be diluted to 20% or less for intramuscular injection in infants and children.
Laboratory Tests
Cal-Paste (Magnesium Sulfate) injection should not be given unless hypomagnesemia has been confirmed and the serum concentration of magnesium is monitored. The normal serum level is 1.5 to 2.5 mEq/L.
Drug Interactions
CNS Depressants - When barbiturates, narcotics or other hypnotics (or systemic anesthetics), or other CNS depressants are to be given in conjunction with magnesium, their dosage should be adjusted with caution because of additive CNS depressant effects of magnesium. CNS depression and peripheral transmission defects produced by magnesium may be antagonized by calcium.
Neuromuscular Blocking Agents - Excessive neuromuscular block has occurred in patients receiving parenteral Cal-Paste (Magnesium Sulfate) and a neuromuscular blocking agent; these drugs should be administered concomitantly with caution.
Cardiac Glycosides - Cal-Paste (Magnesium Sulfate) should be administered with extreme caution in digitalized patients, because serious changes in cardiac conduction which can result in heart block may occur if administration of calcium is required to treat magnesium toxicity.
Pregnancy
Teratogenic Effects
Pregnancy Category D (See WARNINGS and PRECAUTIONS )
See WARNINGS and PRECAUTIONS .
Cal-Paste (Magnesium Sulfate) can cause fetal abnormalities when administered beyond 5 to 7 days to pregnant women. There are retrospective epidemiological studies and case reports documenting fetal abnormalities such as hypocalcemia, skeletal demineralization, osteopenia and other skeletal abnormalities with continuous maternal administration of Cal-Paste (Magnesium Sulfate) for more than 5 to 7 days.1-10 Cal-Paste (Magnesium Sulfate) injection should be used during pregnancy only if clearly needed. If this drug is used during pregnancy, the woman should be apprised of the potential harm to the fetus.
Nonteratogenic Effects
When administered by continuous intravenous infusion (especially for more than 24 hours preceding delivery) to control convulsions in a toxemic woman, the newborn may show signs of magnesium toxicity, including neuromuscular or respiratory depression (See OVERDOSAGE ).
Labor and Delivery
Continuous administration of Cal-Paste (Magnesium Sulfate) is an unapproved treatment for preterm labor. The safety and efficacy of such use have not been established. The administration of Cal-Paste (Magnesium Sulfate) outside of its approved indication in pregnant women should be by trained obstetrical personnel in a hospital setting with appropriate obstetrical care facilities.
Nursing Mothers
Since magnesium is distributed into milk during parenteral Cal-Paste (Magnesium Sulfate) administration, the drug should be used with caution in nursing women.
Geriatrics
Geriatric patients often require reduced dosage because of impaired renal function. In patients with severe impairment, dosage should not exceed 20 grams in 48 hours. Serum magnesium should be monitored in such patients.
The adverse effects of parenterally administered magnesium usually are the result of magnesium intoxication. These include flushing, sweating, hypotension, depressed reflexes, flaccid paralysis, hypothermia, circulatory collapse, cardiac and central nervous system depression proceeding to respiratory paralysis. Hypocalcemia with signs of tetany secondary to Cal-Paste (Magnesium Sulfate) therapy for eclampsia has been reported.
Magnesium intoxication is manifested by a sharp drop in blood pressure and respiratory paralysis. Disappearance of the patellar reflex is a useful clinical sign to detect the onset of magnesium intoxication. In the event of overdosage, artificial ventilation must be provided until a calcium salt can be injected intravenously to antagonize the effects of magnesium.
For Treatment of Overdose
Artificial respiration is often required. Intravenous calcium, 10 to 20 mL of a 5% solution (diluted if desirable with isotonic sodium chloride for injection) is used to counteract effects of hypermagnesemia. Subcutaneous physostigmine, 0.5 to 1 mg may be helpful.
Hypermagnesemia in the newborn may require resuscitation and assisted ventilation via endotracheal intubation or intermittent positive pressure ventilation as well as intravenous calcium.
Dosage of Cal-Paste (Magnesium Sulfate) must be carefully adjusted according to individual requirements and response, and administration of the drug should be discontinued as soon as the desired effect is obtained.
Both intravenous and intramuscular administration are appropriate. Intramuscular administration of the undiluted 50% solution results in therapeutic plasma levels in 60 minutes, whereas intravenous doses will provide a therapeutic level almost immediately. The rate of intravenous injection should generally not exceed 150 mg/minute (1.5 mL of a 10% concentration or its equivalent), except in severe eclampsia with seizures. Continuous maternal administration of Cal-Paste (Magnesium Sulfate) in pregnancy beyond 5 to 7 days can cause fetal abnormalities.
Solutions for intravenous infusion must be diluted to a concentration of 20% or less prior to administration. The diluents commonly used are 5% Dextrose Injection, USP and 0.9% Sodium Chloride Injection, USP. Deep intramuscular injection of the undiluted (50%) solution is appropriate for adults, but the solution should be diluted to a 20% or less concentration prior to such injection in children.
In Magnesium Deficiency
In the treatment of mild magnesium deficiency, the usual adult dose is 1 gram, equivalent to 8.12 mEq of magnesium (2 mL of the 50% solution) injected intramuscularly every six hours for four doses (equivalent to a total of 32.5 mEq of magnesium per 24 hours). For severe hypomagnesemia, as much as 250 mg (approximately 2 mEq) per kg of body weight (0.5 mL of the 50% solution) may be given intramuscularly within a period of four hours if necessary. Alternatively, 5 grams, (approximately 40 mEq) can be added to one liter of 5% Dextrose Injection, USP or 0.9% Sodium Chloride Injection, USP for slow intravenous infusion over a three-hour period. In the treatment of deficiency states, caution must be observed to prevent exceeding the renal excretory capacity.
In Hyperalimentation
In total parenteral nutrition, maintenance requirements for magnesium are not precisely known. The maintenance dose used in adults ranges from 8 to 24 mEq (1 gram to 3 grams) daily; for infants, the range is 2 to 10 mEq (0.25 gram to 1.25 grams) daily.
In Pre-eclampsia or Eclampsia
In severe pre-eclampsia or eclampsia, the total initial dose is 10 grams to 14 grams of Cal-Paste (Magnesium Sulfate). Intravenously, a dose of 4 grams to 5 grams in 250 mL of 5% Dextrose Injection, USP or 0.9% Sodium Chloride Injection, USP may be infused. Simultaneously, intramuscular doses of up to 10 grams (5 grams or 10 mL of the undiluted 50% solution in each buttock) are given. Alternatively, the initial intravenous dose of 4 grams may be given by diluting the 50% solution to a 10 or 20% concentration; the diluted fluid (40 mL of a 10% solution or 20 mL of a 20% solution) may then be injected intravenously over a period of three to four minutes. Subsequently, 4 grams to 5 grams (8 to 10 mL of the 50% solution) are injected intramuscularly into alternate buttocks every four hours as needed, depending on the continuing presence of the patellar reflex and adequate respiratory function. Alternatively, after the initial intravenous dose, some clinicians administer 1 gram to 2 grams/hour by constant intravenous infusion. Therapy should continue until paroxysms cease. A serum magnesium level of 6 mg/100 mL is considered optimal for control of seizures. A total daily (24 hr) dose of 30 grams to 40 grams should not be exceeded. In the presence of severe renal insufficiency, the maximum dosage of Cal-Paste (Magnesium Sulfate) is 20 grams/48 hours and frequent serum magnesium concentrations must be obtained. Continuous use of Cal-Paste (Magnesium Sulfate) in pregnancy beyond 5 to 7 days can cause fetal abnormalities.
Other Uses
In counteracting the muscle-stimulating effects of barium poisoning, the usual dose of Cal-Paste (Magnesium Sulfate) is 1 gram to 2 grams given intravenously.
For controlling seizures associated with epilepsy, glomerulonephritis or hypothyroidism, the usual adult dose is 1 gram administered intramuscularly or intravenously.
In paroxysmal atrial tachycardia, magnesium should be used only if simpler measures have failed and there is no evidence of myocardial damage. The usual dose is 3 grams to 4 grams (30 to 40 mL of a 10% solution) administered intravenously over 30 seconds with extreme caution.
For reduction of cerebral edema, 2.5 grams (25 mL of a 10% solution) is given intravenously.
Incompatibilities
Cal-Paste (Magnesium Sulfate) in solution may result in a precipitate formation when mixed with solutions containing:
Alcohol (in high Heavy Metals
concentrations) Hydrocortisone sodium
Alkali carbonates and succinate
bicarbonates Phosphates
Alkali hydroxides Polymixin B sulfate
Arsenates Procaine hydrochloride
Barium Salicylates
Calcium Strontium
Clindamycin phosphate Tartrates
The potential incompatibility will often be influenced by the changes in the concentration of reactants and the pH of the solutions.
It has been reported that magnesium may reduce the antibiotic activity of streptomycin, tetracycline and tobramycin when given together.
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
Cal-Paste (Magnesium Sulfate) Injection, USP is supplied in single-dose containers as follows:
NDC No. | Container | Total Amount | Concentration | mEq Mg++/mL |
0409-1754-10 | Ansyr Plastic Syringe | 5 g/10 mL | 50% | 4 mEq/mL |
Do not administer unless solution is clear and container is undamaged. Discard unused portion.
Store at 20 to 25°C (68 to 77°F).
Hospira, Inc., Lake Forest, IL 60045 USA
LAB-1024-1.0
April 2017
Hospira Logo
50% Cal-Paste (Magnesium Sulfate) 5 g/10 mL (500 mg/mL)
Rx only
NDC 0409-1754-10
10 mL Single-dose syringe
50% Cal-Paste (Magnesium Sulfate) Injection, USP
5 g/10 mL (500 mg/mL) (4 mEq Mg++/mL)
MUST BE DILUTED FOR INTRAVENOUS USE.
For Intravenous or Intramuscular Use. Sterile. 4.06 mOsmol/mL (calc.).
Contains no more than 75 mcg/L of aluminum.
Hospira, Inc., Lake Forest, IL 60045 USA
Hospira
RL-6891
Potassium Chloride:
Cal-Paste (Potassium Chloride) EXTENDED RELEASE TABLETS USP 20 mEq K
Rx Only
The Cal-Paste (Potassium Chloride) Extended Release Tablets USP, 20 mEq product is an immediately dispersing extended release oral dosage form of Cal-Paste (Potassium Chloride) containing 1500 mg of microencapsulated Cal-Paste (Potassium Chloride), USP equivalent to 20 mEq of potassium in a tablet.
These formulations are intended to slow the release of potassium so that the likelihood of a high localized concentration of Cal-Paste (Potassium Chloride) within the gastrointestinal tract is reduced.
Cal-Paste (Potassium Chloride) Extended Release Tablets USP, 20 mEq is an electrolyte replenisher. The chemical name of the active ingredient is Cal-Paste (Potassium Chloride), and the structural formula is KCl. Cal-Paste (Potassium Chloride), USP occurs as a white, granular powder or as colorless crystals. It is odorless and has a saline taste. Its solutions are neutral to litmus. It is freely soluble in water and insoluble in alcohol.
Cal-Paste (Potassium Chloride) Extended Release Tablets USP, 20 mEq is a tablet formulation (not enteric coated or wax matrix) containing individually microencapsulated Cal-Paste (Potassium Chloride) crystals which disperse upon tablet disintegration. In simulated gastric fluid at 37°C and in the absence of outside agitation, Cal-Paste (Potassium Chloride) Extended Release Tablets USP, 20 mEq begin disintegrating into microencapsulated crystals within seconds and completely disintegrates within 1 minute. The microencapsulated crystals are formulated to provide an extended release of Cal-Paste (Potassium Chloride).
Inactive Ingredients: Colloidal silicon dioxide, crospovidone, diethyl phthalate, ethyl-cellulose, microcrystalline cellulose.
The potassium ion is the principal intracellular cation of most body tissues. Potassium ions participate in a number of essential physiological processes including the maintenance of intracellular tonicity; the transmission of nerve impulses; the contraction of cardiac, skeletal, and smooth muscle; and the maintenance of normal renal function.
The intracellular concentration of potassium is approximately 150 to 160 mEq per liter. The normal adult plasma concentration is 3.5 to 5 mEq per liter. An active ion transport system maintains this gradient across the plasma membrane.
Potassium is a normal dietary constituent and under steady-state conditions the amount of potassium absorbed from the gastrointestinal tract is equal to the amount excreted in the urine. The usual dietary intake of potassium is 50 to 100 mEq per day.
Potassium depletion will occur whenever the rate of potassium loss through renal excretion and/or loss from the gastrointestinal tract exceeds the rate of potassium intake. Such depletion usually develops as a consequence of therapy with diuretics, primary or secondary hyperaldosteronism, diabetic ketoacidosis, or inadequate replacement of potassium in patients on prolonged parenteral nutrition. Depletion can develop rapidly with severe diarrhea, especially if associated with vomiting. Potassium depletion due to these causes is usually accompanied by a concomitant loss of chloride and is manifested by hypokalemia and metabolic alkalosis. Potassium depletion may produce weakness, fatigue, disturbances or cardiac rhythm (primarily ectopic beats), prominent U-waves in the electrocardiogram, and in advanced cases, flaccid paralysis and/or impaired ability to concentrate urine.
If potassium depletion associated with metabolic alkalosis cannot be managed by correcting the fundamental cause of the deficiency, eg, where the patient requires long-term diuretic therapy, supplemental potassium in the form of high potassium food or Cal-Paste (Potassium Chloride) may be able to restore normal potassium levels.
In rare circumstances (eg, patients with renal tubular acidosis) potassium depletion may be associated with metabolic acidosis and hyperchloremia. In such patients potassium replacement should be accomplished with potassium salts other than the chloride, such as potassium bicarbonate, potassium citrate, potassium acetate, or potassium gluconate.
BECAUSE OF REPORTS OF INTESTINAL AND GASTRIC ULCERATION AND BLEEDING WITH CONTROLLED-RELEASE Cal-Paste (Potassium Chloride) PREPARATIONS, THESE DRUGS SHOULD BE RESERVED FOR THOSE PATIENTS WHO CANNOT TOLERATE OR REFUSE TO TAKE LIQUID OR EFFERVESCENT POTASSIUM PREPARATIONS OR FOR PATIENTS IN WHOM THERE IS A PROBLEM OF COMPLIANCE WITH THESE PREPARATIONS.
1. For the treatment of patients with hypokalemia with or without metabolic alkalosis, in digitalis intoxication, and in patients with hypokalemic familial periodic paralysis. If hypokalemia is the result of diuretic therapy, consideration should be given to the use of a lower dose of diuretic, which may be sufficient without leading to hypokalemia.
2. For the prevention of hypokalemia in patients who would be at particular risk if hypokalemia were to develop, eg, digitalized patients or patients with significant cardiac arrhythmias.
The use of potassium salts in patients receiving diuretics for uncomplicated essential hypertension is often unnecessary when such patients have a normal dietary pattern and when low doses of the diuretic are used. Serum potassium should be checked periodically, however, and if hypokalemia occurs, dietary supplementation with potassium-containing foods may be adequate to control milder cases. In more severe cases, and if dose adjustment of the diuretic is ineffective or unwarranted, supplementation with potassium salts may be indicated.
Potassium supplements are contraindicated in patients with hyperkalemia since a further increase in serum potassium concentration in such patients can produce cardiac arrest. Hyperkalemia may complicate any of the following conditions: chronic renal failure, systemic acidosis, such as diabetic acidosis, acute dehydration, extensive tissue breakdown as in severe burns, adrenal insufficiency, or the administration of a potassium-sparing diuretic (eg, spironolactone, triamterene, amiloride) (see OVERDOSAGE ).
Controlled-release formulations of Cal-Paste (Potassium Chloride) have produced esophageal ulceration in certain cardiac patients with esophageal compression due to enlarged left atrium. Potassium supplementation, when indicated in such patients, should be given as a liquid preparation or as an aqueous (water) suspension of Cal-Paste (Potassium Chloride) (see PRECAUTIONS: Information for Patients , and DOSAGE AND ADMINISTRATION sections).
All solid oral dosage forms of Cal-Paste (Potassium Chloride) are contraindicated in any patient in whom there is structural, pathological (eg, diabetic gastroparesis), or pharmacologic (use of anticholinergic agents or other agents with anticholinergic properties at sufficient doses to exert anticholinergic effects) cause for arrest or delay in tablet passage through the gastrointestinal tract.
Hyperkalemia (see OVERDOSAGE )
In patients with impaired mechanisms for excreting potassium, the administration of potassium salts can produce hyperkalemia and cardiac arrest. This occurs most commonly in patients given potassium by the intravenous route but may also occur in patients given potassium orally. Potentially fatal hyperkalemia can develop rapidly and be asymptomatic. The use of potassium salts in patients with chronic renal disease, or any other condition which impairs potassium excretion, requires particularly careful monitoring of the serum potassium concentration and appropriate dosage adjustment.
Interaction with Potassium-Sparing Diuretics
Hypokalemia should not be treated by the concomitant administration of potassium salts and a potassium-sparing diuretic (eg, spironolactone, triamterene, or amiloride) since the simultaneous administration of these agents can produce severe hyperkalemia.
Interaction with Angiotensin-Converting Enzyme Inhibitors
Angiotensin-converting enzyme (ACE) inhibitors (eg, captopril, enalapril) will produce some potassium retention by inhibiting aldosterone production. Potassium supplements should be given to patients receiving ACE inhibitors only with close monitoring.
Gastrointestinal Lesions
Solid oral dosage forms of Cal-Paste (Potassium Chloride) can produce ulcerative and/or stenotic lesions of the gastrointestinal tract. Based on spontaneous adverse reaction reports, enteric-coated preparations of Cal-Paste (Potassium Chloride) are associated with an increased frequency of small bowel lesions (40-50 per 100,000 patient years) compared to sustained release wax matrix formulations (less than one per 100,000 patient years). Because of the lack of extensive marketing experience with microencapsulated products, a comparison between such products and wax matrix or enteric-coated products is not available. Cal-Paste (Potassium Chloride) Extended Release Tablets USP, 20 mEq is a tablet formulated to provide a controlled rate of release of microencapsulated Cal-Paste (Potassium Chloride) and thus to minimize the possibility of a high local concentration of potassium near the gastrointestinal wall.
Prospective trials have been conducted in normal human volunteers in which the upper gastrointestinal tract was evaluated by endoscopic inspection before and after 1 week of solid oral Cal-Paste (Potassium Chloride) therapy. The ability of this model to predict events occurring in usual clinical practice is unknown. Trials which approximated usual clinical practice did not reveal any clear differences between the wax matrix and microencapsulated dosage forms. In contrast, there was a higher incidence of gastric and duodenal lesions in subjects receiving a high dose of a wax matrix controlled-release formulation under conditions which did not resemble usual or recommended clinical practice (ie, 96 mEq per day in divided doses of Cal-Paste (Potassium Chloride) administered to fasted patients, in the presence of an anticholinergic drug to delay gastric emptying). The upper gastrointestinal lesions observed by endoscopy were asymptomatic and were not accompanied by evidence of bleeding (Hemoccult testing). The relevance of these findings to the usual conditions (ie, non-fasting, no anticholinergic agent, smaller doses) under which controlled-release Cal-Paste (Potassium Chloride) products are used is uncertain; epidemiologic studies have not identified an elevated risk, compared to microencapsulated products, for upper gastrointestinal lesions in patients receiving wax matrix formulations. Cal-Paste (Potassium Chloride) Extended Release Tablets USP, 20 mEq should be discontinued immediately and the possibility of ulceration, obstruction, or perforation should be considered if severe vomiting, abdominal pain, distention, or gastrointestinal bleeding occurs.
Metabolic Acidosis
Hypokalemia in patients with metabolic acidosis should be treated with an alkalinizing potassium salt such as potassium bicarbonate, potassium citrate, potassium acetate, or potassium gluconate.
The diagnosis of potassium depletion is ordinarily made by demonstrating hypokalemia in a patient with a clinical history suggesting some cause for potassium depletion. In interpreting the serum potassium level, the physician should bear in mind that acute alkalosis per se can produce hypokalemia in the absence of a deficit in total body potassium while acute acidosis per se can increase the serum potassium concentration into the normal range even in the presence of a reduced total body potassium. The treatment of potassium depletion, particularly in the presence of cardiac disease, renal disease, or acidosis requires careful attention to acid-base balance and appropriate monitoring of serum electrolytes, the electrocardiogram, and the clinical status of the patient.
Physicians should consider reminding the patient of the following: To take each dose with meals and with a full glass of water or other liquid. To take each dose without crushing, chewing, or sucking the tablets. If those patients are having difficulty swallowing whole tablets, they may try one of the following alternate methods of administration:
1. Place the whole tablet(s) in approximately 1/2 glass of water (4 fluid ounces).
2. Allow approximately 2 minutes for the tablet(s) to disintegrate.
3. Stir for about half a minute after the tablet(s) has disintegrated.
4. Swirl the suspension and consume the entire contents of the glass immediately by drinking or by the use of a straw.
5. Add another 1 fluid ounce of water, swirl, and consume immediately.
6. Then, add an additional 1 fluid ounce of water, swirl, and consume immediately.
Aqueous suspension of Cal-Paste (Potassium Chloride) that is not taken immediately should be discarded. The use of other liquids for suspending Cal-Paste (Potassium Chloride) Extended Release Tablets USP, 20 mEq is not recommended.
To take this medicine following the frequency and amount prescribed by the physician. This is especially important if the patient is also taking diuretics and/or digitalis preparations.
To check with the physician at once if tarry stools or other evidence of gastrointestinal bleeding is noticed.
When blood is drawn for analysis of plasma potassium it is important to recognize that artifactual elevations can occur after improper venipuncture technique or as a result of in vitro hemolysis of the sample.
Potassium-sparing diuretics, angiotensin-converting enzyme inhibitors.
Carcinogenicity, mutagenicity, and fertility studies in animals have not been performed. Potassium is a normal dietary constituent.
Animal reproduction studies have not been conducted with Cal-Paste Extended Release Tablets USP, 20 mEq. It is unlikely that potassium supplementation that does not lead to hyperkalemia would have an adverse effect on the fetus or would affect reproductive capacity.
The normal potassium ion content of human milk is about 13 mEq per liter. Since oral potassium becomes part of the body potassium pool, so long as body potassium is not excessive, the contribution of Cal-Paste (Potassium Chloride) supplementation should have little or no effect on the level in human milk.
Safety and effectiveness in pediatric patients have not been established.
Clinical studies of Cal-Paste (Potassium Chloride) did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal or cardiac function, and of concomitant disease or other drug therapy.
This drug is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection; and it may be useful to monitor renal function.
One of the most severe adverse effects is hyperkalemia (see CONTRAINDICATIONS , WARNINGS , and OVERDOSAGE ). There have also been reports of upper and lower gastrointestinal conditions including obstruction, bleeding, ulceration, and perforation (see CONTRAINDICATIONS and WARNINGS ). The most common adverse reactions to oral potassium salts are nausea, vomiting, flatulence, abdominal pain/discomfort, and diarrhea. These symptoms are due to irritation of the gastrointestinal tract and are best managed by diluting the preparation further, taking the dose with meals or reducing the amount taken at one time.
The administration of oral potassium salts to persons with normal excretory mechanisms for potassium rarely causes serious hyperkalemia. However, if excretory mechanisms are impaired or if potassium is administered too rapidly intravenously, potentially fatal hyperkalemia can result (see CONTRAINDICATIONS and WARNINGS ). It is important to recognize that hyperkalemia is usually asymptomatic and may be manifested only by an increased serum potassium concentration (6.5-8.0 mEq/L) and characteristic electrocardiographic changes (peaking of T-waves, loss of P-waves, depression of S-T segment, and prolongation of the QT-interval). Late manifestations include muscle paralysis and cardiovascular collapse from cardiac arrest (9-12 mEq/L).
Treatment measures for hyperkalemia include the following:
In treating hyperkalemia, it should be recalled that in patients who have been stabilized on digitalis, too rapid a lowering of the serum potassium concentration can produce digitalis toxicity.
The extended release feature means that absorption and toxic effects may be delayed for hours.
Consider standard measures to remove any unabsorbed drug.
The usual dietary intake of potassium by the average adult is 50 to 100 mEq per day. Potassium depletion sufficient to cause hypokalemia usually requires the loss of 200 or more mEq of potassium from the total body store.
Dosage must be adjusted to the individual needs of each patient. The dose for the prevention of hypokalemia is typically in the range of 20 mEq per day. Doses of 40-100 mEq per day or more are used for the treatment of potassium depletion. Dosage should be divided if more than 20 mEq per day is given such that no more than 20 mEq is given in a single dose.
Each Cal-Paste (Potassium Chloride) Extended Release Tablet USP, 20 mEq provides 20 mEq of Cal-Paste (Potassium Chloride).
Cal-Paste (Potassium Chloride) Extended Release Tablets USP, 20 mEq should be taken with meals and with a glass of water or other liquid. This product should not be taken on an empty stomach because of its potential for gastric irritation (see WARNINGS ).
Patients having difficulty swallowing whole tablets may try one of the following alternate methods of administration:
Aqueous suspension of Cal-Paste (Potassium Chloride) that is not taken immediately should be discarded. The use of other liquids for suspending Cal-Paste (Potassium Chloride) Extended Release Tablets USP, 20 mEq is not recommended.
Cal-Paste (Potassium Chloride) Extended Release Tablets USP, 20 mEq are available in bottles of 100 (NDC 62037-999-01), bottles of 500 (NDC 62037-999-05), and bottles of 1000 (NDC 62037-999-10). Potassium Chloride Extended Release Tablets USP, 20 mEq are capsule shaped, white to off-white tablets, with “ABRS-123” imprinted on one side and scored on the other side for flexibility of dosing.
Storage Conditions
Keep tightly closed. Store at controlled room temperature, 20°-25°C (68°-77°F).
Manufactured by:
Eurand, Inc.
Vandalia, OH 45377 USA
Distributed by:
Watson Pharma, Inc.
Rev. Date (01/09) 173714
Cal-Paste (Potassium Chloride) 20 Meq
Depending on the reaction of the Cal-Paste after taken, if you are feeling dizziness, drowsiness or any weakness as a reaction on your body, Then consider Cal-Paste not safe to drive or operate heavy machine after consumption. Meaning that, do not drive or operate heavy duty machines after taking the capsule if the capsule has a strange reaction on your body like dizziness, drowsiness. As prescribed by a pharmacist, it is dangerous to take alcohol while taking medicines as it exposed patients to drowsiness and health risk. Please take note of such effect most especially when taking Primosa capsule. It's advisable to consult your doctor on time for a proper recommendation and medical consultations.
Is Cal-Paste addictive or habit forming?Medicines are not designed with the mind of creating an addiction or abuse on the health of the users. Addictive Medicine is categorically called Controlled substances by the government. For instance, Schedule H or X in India and schedule II-V in the US are controlled substances.
Please consult the medicine instruction manual on how to use and ensure it is not a controlled substance.In conclusion, self medication is a killer to your health. Consult your doctor for a proper prescription, recommendation, and guidiance.
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The information was verified by Dr. Rachana Salvi, MD Pharmacology