DRUGS & SUPPLEMENTS
Prenavite Forte usesPrenavite Forte consists of Calcium Carbonate, Ferrous Fumarate, Folic Acid, Vitamin A (Vitamin A Acetate), Vitamin C (Sodium Ascorbate), Vitamin D.
1 INDICATIONS AND USAGE
Prenavite Forte (Calcium Carbonate) 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)
2 DOSAGE AND ADMINISTRATION
The recommended initial dose of Prenavite Forte (Calcium Carbonate) 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)
3 DOSAGE FORMS AND STRENGTHS
Capsule: 667 mg Prenavite Forte (Calcium Carbonate) acetate capsule.
- Capsule: 667 mg Prenavite Forte (Calcium Carbonate) acetate capsule. (3)
Patients with hypercalcemia.
- Hypercalcemia. (4)
5 WARNINGS AND PRECAUTIONS
- Treat mild hypercalcemia by reducing or interrupting Prenavite Forte acetate and Vitamin D. Severe hypercalcemia may require hemodialysis and discontinuation of Prenavite Forte (Calcium Carbonate) acetate. (5.1)
- Hypercalcemia may aggravate digitalis toxicity. (5.2)
Patients with end stage renal disease may develop hypercalcemia when treated with Prenavite Forte (Calcium Carbonate), including Prenavite Forte (Calcium Carbonate) acetate. Avoid the use of Prenavite Forte (Calcium Carbonate) supplements, including Prenavite Forte (Calcium Carbonate) based nonprescription antacids, concurrently with Prenavite Forte (Calcium Carbonate) acetate.
An overdose of Prenavite Forte (Calcium Carbonate) acetate may lead to progressive hypercalcemia, which may require emergency measures. Therefore, early in the treatment phase during the dosage adjustment period, monitor serum Prenavite Forte (Calcium Carbonate) levels twice weekly. Should hypercalcemia develop, reduce the Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) acetate; all cases resolved upon lowering the dose or discontinuing treatment.
Maintain the serum calcium-phosphorus (Ca x P) product below 55 mg2/dL2.
5.2 Concomitant Use with Medications
Hypercalcemia may aggravate digitalis toxicity.
6 ADVERSE REACTIONS
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 Prenavite Forte (Calcium Carbonate) 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
6.1 Clinical Trial Experience
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, Prenavite Forte (Calcium Carbonate) acetate has been generally well tolerated.
Prenavite Forte (Calcium Carbonate) acetate was studied in a 3 month, open-label, non-randomized study of 98 enrolled ESRD hemodialysis patients and an alternate liquid formulation of Prenavite Forte (Calcium Carbonate) 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.
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 Prenavite Forte (Calcium Carbonate) concentration could reduce the incidence and severity of Prenavite Forte (Calcium Carbonate) acetate-induced hypercalcemia. Isolated cases pruritus have been reported, which may represent allergic reactions.
6.2 Postmarketing Experience
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 Prenavite Forte (Calcium Carbonate) acetate: dizziness, edema, and weakness.
7 DRUG INTERACTIONS
The drug interaction of Prenavite Forte acetate is characterized by the potential of Prenavite Forte (Calcium Carbonate) to bind to drugs with anionic functions (e.g., carboxyl, and hydroxyl groups). Prenavite Forte (Calcium Carbonate) acetate may decrease the bioavailability of tetracyclines or fluoroquinolones via this mechanism.
There are no empirical data on avoiding drug interactions between Prenavite Forte (Calcium Carbonate) acetate and most concomitant drugs. When administering an oral medication with Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) acetate or consider monitoring blood levels of the drug. (7)
In a study of 15 healthy subjects, a co-administered single dose of 4 Prenavite Forte (Calcium Carbonate) acetate tablets, approximately 2.7g, decreased the bioavailability of ciprofloxacin by approximately 50%.
8 USE IN SPECIFIC POPULATIONS
Pregnancy Category C:
Prenavite Forte acetate capsules contains Prenavite Forte (Calcium Carbonate) acetate. Animal reproduction studies have not been conducted with Prenavite Forte (Calcium Carbonate) acetate, and there are no adequate and well controlled studies of Prenavite Forte (Calcium Carbonate) acetate use in pregnant women. Patients with end stage renal disease may develop hypercalcemia with Prenavite Forte (Calcium Carbonate) acetate treatment [see Warnings and Precautions (5.1 ) ]. Maintenance of normal serum Prenavite Forte (Calcium Carbonate) 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. Prenavite Forte (Calcium Carbonate) acetate treatment, as recommended, is not expected to harm a fetus if maternal Prenavite Forte (Calcium Carbonate) levels are properly monitored during and following treatment.
8.2 Labor and Delivery
The effects of Prenavite Forte (Calcium Carbonate) acetate on labor and delivery are unknown.
8.3 Nursing Mothers
Prenavite Forte Acetate Capsules contains Prenavite Forte (Calcium Carbonate) acetate and is excreted in human milk. Human milk feeding by a mother receiving Prenavite Forte (Calcium Carbonate) acetate is not expected to harm an infant, provided maternal serum Prenavite Forte (Calcium Carbonate) levels are appropriately monitored.
8.4 Pediatric Use
Safety and effectiveness in pediatric patients have not been established.
8.5 Geriatric Use
Clinical studies of Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) acetate in excess of the appropriate daily dosage may result in hypercalcemia [see Warnings and Precautions (5.1)].
Prenavite Forte (Calcium Carbonate) acetate acts as a phosphate binder. Its chemical name is Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) acetate USP (anhydrous; Ca(CH3COO)2; MW=158.17 grams) equal to 169 mg (8.45 mEq) Prenavite Forte (Calcium Carbonate), 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.
Prenavite Forte (Calcium Carbonate) Acetate Capsules are administered orally for the control of hyperphosphatemia in end-stage renal failure.
12 CLINICAL PHARMACOLOGY
Patients with ESRD retain phosphorus and can develop hyperphosphatemia. High serum phosphorus can precipitate serum Prenavite Forte resulting in ectopic calcification. Hyperphosphatemia also plays a role in the development of secondary hyperparathyroidism in patients with ESRD.
12.1 Mechanism of Action
Prenavite Forte (Calcium Carbonate) acetate, when taken with meals, combines with dietary phosphate to form an insoluble Prenavite Forte (Calcium Carbonate) phosphate complex, which is excreted in the feces, resulting in decreased serum phosphorus concentration.
Orally administered Prenavite Forte (Calcium Carbonate) 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.
13 NONCLINICAL TOXICOLOGY
13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility
No carcinogenicity, mutagenicity, or fertility studies have been conducted with Prenavite Forte (Calcium Carbonate) acetate.
14 CLINICAL STUDIES
Effectiveness of Prenavite Forte (Calcium Carbonate) acetate in decreasing serum phosphorus has been demonstrated in two studies of the Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) acetate in the treatment of hyperphosphatemia in end-stage renal disease patients. The effects on serum Prenavite Forte (Calcium Carbonate) levels are also presented.
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 Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) acetate is shown in the Table 3.
Overall, 2 weeks of treatment with Prenavite Forte (Calcium Carbonate) acetate statistically significantly (p<0.01) decreased serum phosphorus by a mean of 19% and increased serum Prenavite Forte (Calcium Carbonate) by a statistically significant (p<0.01) but clinically unimportant mean of 7%.
16 HOW SUPPLIED/STORAGE AND HANDLING
Prenavite Forte (Calcium Carbonate) 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
Store at 20° to 25°C (68° to 77°F).
17 PATIENT COUNSELING INFORMATION
Inform patients to take Prenavite Forte (Calcium Carbonate) acetate capsules with meals, adhere to their prescribed diets, and avoid the use of Prenavite Forte (Calcium Carbonate) 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 Prenavite Forte (Calcium Carbonate) acetate capsules.
Distr. by: West-Ward
Eatontown, NJ 07724
Revised April 2016
INDICATIONS AND USAGE
For the treatment of iron deficiency and prevention of concomitant folic acid deficiency.
For the prevention and treatment of iron deficiency and to supply a maintenance dosage of folic acid.
Contraindicated in patients with pernicious anemia and in the rare instance of hypersensitivity to folic acid. Hemochromatosis and hemosiderosis are contraindications to iron therapy.
Anemia is a manifestation that requires appropriate investigation to determine its cause or causes. Folic acid alone is unwarranted in the treatment of vitamin B12 deficiency states such as pernicious anemia. Folic acid, especially in doses above 100 mcg daily may obscure pernicious anemia in that hematological remission may occur while neurological manifestations remain progressive. Concomitant parenteral therapy with vitamin B12 may be necessary for adequate treatment of patients with a deficiency of vitamin B12. Pernicious anemia is rare in women of childbearing age, and the likelihood of its occurrence along with pregnancy is reduced by the impairment of fertility associated with vitamin B12 deficiency. In older patients and those with conditions tending to lead to vitamin B12 depletion, serum B12 levels should be regularly assessed during treatment.
Absorption of iron is inhibited by magnesium trisilicate and antacids containing carbonates. Since oral iron products interfere with absorption of oral tetracycline antibiotics, these products should not be taken within two hours of each other. Iron absorption may also be inhibited by the ingestion of milk or eggs.
Adequate data are not available on long-term potential for carcinogenesis in animals and humans.
Pregnancy Category A
Studies in pregnant women have not shown that the ingredients in Prenavite Forte caplets formula increase the risk of fetal abnormalities if administered during pregnancy. If this product is used during pregnancy, the possibility of fetal harm appears remote. Because studies cannot rule out the possibility of harm, however, Prenavite Forte (Ferrous Fumarate) caplets should be used during pregnancy only if clearly needed.
Folic acid and ascorbic acid are excreted in breast milk.
Rarely, controlled-release iron produces gastrointestinal reactions, such as diarrhea or constipation. Administering the dose with meals will minimize these effects in the iron-sensitive patient. Allergic sensitization has been reported with both oral and parenteral administration of folic acid.
Signs and symptoms of iron toxicity, which may be delayed because the iron is in a controlled-release form, may include pallor and cyanosis, vomiting of blood, diarrhea, passage of dark-colored stool, shock, drowsiness and coma. In overdosage, efforts should be made to hasten the elimination of the caplets ingested. An emetic should be administered as soon as possible, followed by gastric lavage if indicated. Immediately following emesis, a large dose of saline cathartic should be used to speed passage through the intestinal tract. X-ray examination may then be considered to determine the position and number of caplets remaining in the gastrointestinal tract.
DOSAGE AND ADMINISTRATION
Adults, including Pregnant Females
The recommended dose is one (1) caplet daily on an empty stomach.
Prenavite Forte (Ferrous Fumarate) is supplied in bottles of 30 caplets.
Product Code: 13811-051-30
Store at 20°-25°C (68°-77°F), excursions permitted to 15°-30°C (59°-86°F).
Call your doctor about side effects. You may report side effects by calling 888 9 TRIGEN (888-987-4436).
KEEP OUT OF THE REACH OF CHILDREN.
All prescriptions using this product shall be pursuant to statutes as applicable. This is not an Orange Book product. There are no implied or explicit claims on therapeutic equivalence.
TRIGEN Laboratories, Inc., Sayreville, NJ 08872
Prenavite Forte (Ferrous Fumarate)
INDICATIONS AND USAGE
Prenavite Forte (Folic Acid)® is a prescription iron supplement indicated for use in improving the nutritional status of iron deficiency.
This product is contraindicated in patients with a known hypersensitivity to any of the ingredients. Hemochromatosis and hemosiderosis are contraindications to iron therapy.
Prenavite Forte (Folic Acid) acid when administered as a single agent in doses above 0.1 mg daily may obscure pernicious anemia in that hematological remission can occur while neurological manifestations remain progressive. While prescribing this nutritional supplement for pregnant women, nursing mothers, or for women prior to conception, their medical condition and other drugs, herbs, and/or supplements consumption should be considered.
Allergic sensitization has been reported following both oral and parenteral administration of Prenavite Forte (Folic Acid) acid.
DOSAGE AND ADMINISTRATION
One tablet daily with or without food or as prescribed by a licensed healthcare provider with prescribing authority.
Prenavite Forte (Folic Acid)® tablets are supplied in child-resistant bottles of 90 tablets (NDC 0037-6885-90)
KEEP OUT OF REACH OF CHILDREN.
Store at controlled room temperature 20°-25°C (68°-77°F). Excursions permitted to 15°-30°C (59°-86°F).
Dispense in a tight, light-resistant container to protect from light and moisture.
To report SUSPECTED ADVERSE REACTIONS contact Meda Pharmaceuticals Inc. at 1-888-349-5556 or FDA at 1-800-FDA-1088 or www.fda.gov/safety/medwatch
Meda Pharmaceuticals Inc.
Somerset New Jersey 08873-4120
© 2014 Meda Pharmaceuticals Inc.
U.S. Patent Nos. 7,585,527 and 8,080,520
Proferrin® is a registered trademark of Colorado BioLabs, Inc., Cozad, NE.
Prenavite Forte (Folic Acid) and the BIFERA logo are registered trademarks and the Prenavite Forte (Folic Acid) logo is a trademark of Alaven Pharmaceutical LLC, used under license by Meda Pharmaceuticals Inc.
MEDA PHARMACEUTICALS mark and logo are trademarks of Meda AB.
IN-6885-02 Rev 6/2014
Vitamin A (Vitamin A Acetate):
DOSAGE AND ADMINISTRATION
One tablet daily or as directed by a physician.
KEEP OUT OF THE REACH OF CHILDREN.
In case of accidental overdose, seek professional assistance or contact a Poison Control Center immediately.
Other Ingredients: Artificial cherry flavor, artificial grape flavor, ascorbic acid, cholecalciferol, compressible sugar, D&C Red #7 calcium lake, FD&C Blue #1 aluminum lake, FD&C Yellow #6 aluminum lake, folic acid, magnesium stearate, microcrystalline cellulose, natural and artificial orange flavor, niacinamide, polyethylene glycol, pyridoxine HCl, riboflavin, sodium ascorbate, sodium fluoride, stearic acid, sucralose, thiamine HCl, Prenavite Forte (Vitamin A (Vitamin A Acetate)) acetate, vitamin B12 and vitamin E acetate.
Active ingredient for caries prophylaxis: Fluoride as sodium fluoride.
Significant decrease in the incidence of dental caries can be linked to the fluoridation of the water supply (1ppm fluoride) during the period of tooth development.
Prenavite Forte (Vitamin A (Vitamin A Acetate)) Tablets provide sodium fluoride and ten essential vitamins in a chewable tablet. Because the tablets are chewable, they provide a topical as well as systemic source of fluoride. Hydroxyapatite is the principal crystal for all calcified tissue in the human body. The fluoride ion reacts with the Hydroxyapatite in the tooth as it is formed to produce the more caries-resistant crystal, fluorapatite.
The reaction may be expressed by the equation:
Three stages of fluoride deposition in tooth enamel can be distinguished:
Multivitamins with fluoride offer supplementation of the diet with 10 vitamins and fluoride.
AS IN THE CASE OF ALL MEDICATIONS, KEEP OUT OF THE REACH OF CHILDREN. This tablet should be chewed. This product, as with all chewable tablets are not recommended for children under the age of 4 due to risk of choking.
The suggested dose of Prenavite Forte (Vitamin A (Vitamin A Acetate)) Tablets should not be exceeded, since dental fluorosis may result from continued ingestion of large amounts of fluoride.
Before recommending Prenavite Forte (Vitamin A (Vitamin A Acetate)) Tablets
Allergic rash and other idiosyncrasies have been rarely reported.
To report SUSPECTED ADVERSE REACTIONS, contact H2-Pharma, LLC at 1 (866) 592-6438 or FDA at 1 (800) 332-1088 or via the web at www.fda.gov/medwatch/index.html for voluntary reporting of adverse reactions.
DOSAGE AND ADMINISTRATION
One tablet daily or as directed by a physician.
Prenavite Forte ) Tablets 0.25 mg are available as orange, red and purple chewable tablets imprinted with "151" in 100 tablet bottles.
Prenavite Forte (Vitamin A (Vitamin A Acetate)) Tablets 0.5 mg are available as orange, red and purple chewable tablets imprinted with "152" in 100 tablet bottles.
Prenavite Forte (Vitamin A (Vitamin A Acetate)) Tablets 1.0 mg are available as orange, red and purple chewable tablets imprinted with "153" in 100 tablet bottles.
Store at controlled room temperature 20ºC-25ºC (68º-77ºF), excursions permitted between 15º-30ºC (59º-86ºF).
2010 Berry Chase Place
Montgomery, AL 36117
MultiVitamin and Fluoride Supplement
Vitamin C (Sodium Ascorbate):
Ascorbic acid is essential for the formation of intracellular collagen, is required to strengthen the structure of teeth, bones, and the capillary walls. Prenavite Forte (Vitamin C (Sodium Ascorbate)) participates in redox reactions, the metabolism of tyrosine, converting folic acid into folinic acid, metabolism of carbohydrates, the synthesis of lipids and proteins, iron metabolism, processes of cellular respiration. Reduces the need for vitamins B1, B2, A, E, folic acid, pantothenic acid, enhances the body's resistance to infections; enhances iron absorption, contributing to its sequestration in reduced form. Prenavite Forte (Vitamin C (Sodium Ascorbate)) has antioxidant properties.
With intravaginal application of ascorbic acid lowers the vaginal pH, inhibiting the growth of bacteria and helps to restore and maintain normal pH and vaginal flora (Lactobacillus acidophilus, Lactobacillus gasseri).
After oral administration ascorbic acid is completely absorbed from the gastrointestinal tract. Widely distributed in body tissues.
The concentration of ascorbic acid in blood plasma in normal amounts to approximately 10-20 mg / ml.
The concentration of ascorbic acid in white blood cells and platelets is higher than in erythrocytes and plasma. When deficient state of concentration in leucocytes is reduced later and more slowly and is regarded as the best criterion for evaluating the deficit than the concentration in plasma.
Plasma protein binding is about 25%.
Ascorbic acid is reversibly oxidized to form dehydroascorbic acid, is metabolized with the formation of ascorbate-2-sulphate which is inactive and oxalic acid which is excreted in the urine.
Ascorbic acid taken in excessive quantities is rapidly excreted unchanged in urine, it usually happens when exceeding a daily dose is 200 mg.
Why is Prenavite Forte ) prescribed?
For systemic use of Prenavite Forte (Vitamin C (Sodium Ascorbate)) Kimia Farma: prevention and treatment of hypo- and avitaminosis of Prenavite Forte (Vitamin C (Sodium Ascorbate)); providing increased need for Prenavite Forte (Vitamin C (Sodium Ascorbate)) during growth, pregnancy, lactation, with heavy loads, fatigue and during recovery after prolonged severe illness; in winter with an increased risk of infectious diseases.
For intravaginal use: chronic or recurrent vaginitis (bacterial vaginosis, nonspecific vaginitis) caused by the anaerobic flora (due to changes in pH of the vagina) in order to normalize disturbed vaginal microflora.
Dosage and administration
This medication administered orally, IM, IV, intravaginally.
For the prevention of deficiency conditions Prenavite Forte ) dose is 25-75 mg / day, for the treatment - 250 mg / day or more in divided doses.
For intravaginal used ascorbic acid drugs in appropriate dosage forms.
Prenavite Forte (Vitamin C (Sodium Ascorbate)) side effects, adverse reactions
CNS: headache, fatigue, insomnia.
Digestive system: stomach cramps, nausea and vomiting.
Allergic reaction: describes a few cases of skin reactions and manifestations of the respiratory system.
Urinary system: when used in high doses - hyperoxaluria and the formation of kidney stones of calcium oxalate.
Local reactions: with intravaginal application - a burning or itching in the vagina, increased mucous discharge, redness, swelling of the vulva. Other: sensation of heat.
Prenavite Forte ) contraindications
Increased sensitivity to ascorbic acid.
Using during pregnancy and breastfeeding
The minimum daily requirement of ascorbic acid in the II and III trimester of pregnancy is about 60 mg.
Ascorbic acid crosses the placental barrier. It should be borne in mind that the fetus can adapt to high doses of ascorbic acid, which takes a pregnant woman, and then a newborn baby may develop the ascorbic disease as the reaction of cancel. Therefore, during pregnancy should not to take ascorbic acid in high doses, except in cases where the expected benefit outweighs the potential risk.
The minimum daily requirement during lactation is 80 mg. Ascorbic acid is excreted in breast milk. A mother's diet that contains adequate amounts of ascorbic acid, is sufficient to prevent deficiency in an infant. It is unknown whether dangerous to the child's mother use of ascorbic acid in high doses. Theoretically it is possible. Therefore, it is recommended not to exceed the maximum daily nursing mother needs to ascorbic acid, except when the expected benefit outweighs the potential risk.
Prenavite Forte (Vitamin C (Sodium Ascorbate)) is used with caution in patients with hyperoxaluria, renal impairment, a history of instructions on urolithiasis. Because ascorbic acid increases iron absorption, its use in high doses can be dangerous in patients with hemochromatosis, thalassemia, polycythemia, leukemia, and sideroblastic anemia.
Patients with high content body iron should apply ascorbic acid in minimal doses.
Prenavite Forte (Vitamin C (Sodium Ascorbate)) is used with caution in patients with deficiency of glucose-6-phosphate dehydrogenase.
The use of ascorbic acid in high doses can cause exacerbation of sickle cell anemia.
Data on the diabetogenic action of ascorbic acid are contradictory. However, prolonged use of ascorbic acid should periodically monitor your blood glucose levels.
It is believed that the use of ascorbic acid in patients with rapidly proliferating and widely disseminated tumors may worsen during the process. It should therefore be used with caution in ascorbic acid in patients with advanced cancer.
Absorption of ascorbic acid decreased while use of fresh fruit or vegetable juices, alkaline drinking.
Prenavite Forte ) drug interactions
In an application with barbiturates, primidone increases the excretion of ascorbic acid in the urine.
With the simultaneous use of oral contraceptives reduces the concentration of ascorbic acid in blood plasma.
In an application of Prenavite Forte (Vitamin C (Sodium Ascorbate)) with iron preparations ascorbic acid, due to its regenerative properties, transforms ferric iron in the bivalent, which improves its absorption.
Ascorbic acid in high doses can decrease urine pH that while the application reduces the tubular reabsorption of amphetamine and tricyclic antidepressants.
With the simultaneous use of aspirin reduces the absorption of ascorbic acid by about a third.
Prenavite Forte (Vitamin C (Sodium Ascorbate)) in an application with warfarin may decrease effects of warfarin.
With the simultaneous application of ascorbic acid increases the excretion of iron in patients receiving deferoxamine. In the application of ascorbic acid at a dose of 500 mg / day possibly left ventricular dysfunction.
In an application with tetracycline is increased excretion of ascorbic acid in the urine.
There is a described case of reducing the concentration of fluphenazine in plasma in patients treated with ascorbic acid 500 mg 2 times / day.
May increase the concentration of ethinyl estradiol in the blood plasma in its simultaneous application in the oral contraceptives.
Prenavite Forte ) in case of emergency / overdose
Symptoms: long-term use of large doses (more than 1 g) - headache, increased CNS excitability, insomnia, nausea, vomiting, diarrhea, gastritis giperatsidnyh, ultseratsiya gastrointestinal mucosa, inhibition of the function insular apparatus of the pancreas (hyperglycemia, glycosuria), hyperoxaluria, nephrolithiasis (calcium oxalate), damage to the glomerular apparatus of the kidneys, moderate thamuria (when receiving a dose of 600 mg / day).
Decrease capillary permeability (possibly deteriorating trophic tissues, increased blood pressure, hypercoagulability, the development of microangiopathy).
When IV administration in high doses - the threat of termination of pregnancy (due to estrogenemia), hemolysis of red blood cells.
Prenavite Forte pharmaceutical active ingredients containing related brand and generic drugs:
Active ingredient is the part of the drug or medicine which is biologically active. This portion of the drug is responsible for the main action of the drug which is intended to cure or reduce the symptom or disease. The other portions of the drug which are inactive are called excipients; there role is to act as vehicle or binder. In contrast to active ingredient, the inactive ingredient's role is not significant in the cure or treatment of the disease. There can be one or more active ingredients in a drug.
Prenavite Forte available forms, composition, doses:
Form of the medicine is the form in which the medicine is marketed in the market, for example, a medicine X can be in the form of capsule or the form of chewable tablet or the form of tablet. Sometimes same medicine can be available as injection form. Each medicine cannot be in all forms but can be marketed in 1, 2, or 3 forms which the pharmaceutical company decided based on various background research results.
Composition is the list of ingredients which combinedly form a medicine. Both active ingredients and inactive ingredients form the composition. The active ingredient gives the desired therapeutic effect whereas the inactive ingredient helps in making the medicine stable.
Doses are various strengths of the medicine like 10mg, 20mg, 30mg and so on. Each medicine comes in various doses which is decided by the manufacturer, that is, pharmaceutical company. The dose is decided on the severity of the symptom or disease.
Prenavite Forte destination | category:
Destination is defined as the organism to which the drug or medicine is targeted. For most of the drugs what we discuss, human is the drug destination.
Drug category can be defined as major classification of the drug. For example, an antihistaminic or an antipyretic or anti anginal or pain killer, anti-inflammatory or so.
Prenavite Forte Anatomical Therapeutic Chemical codes:
A medicine is classified depending on the organ or system it acts [Anatomical], based on what result it gives on what disease, symptom [Therapeutical], based on chemical composition [Chemical]. It is called as ATC code. The code is based on Active ingredients of the medicine. A medicine can have different codes as sometimes it acts on different organs for different indications. Same way, different brands with same active ingredients and same indications can have same ATC code.
Prenavite Forte pharmaceutical companies:
Pharmaceutical companies are drug manufacturing companies that help in complete development of the drug from the background research to formation, clinical trials, release of the drug into the market and marketing of the drug.
Researchers are the persons who are responsible for the scientific research and is responsible for all the background clinical trials that resulted in the development of the drug.
Frequently asked QuestionsCan i drive or operate heavy machine after consuming Prenavite Forte?
Depending on the reaction of the Prenavite Forte after taken, if you are feeling dizziness, drowsiness or any weakness as a reaction on your body, Then consider Prenavite Forte 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 Prenavite Forte 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.
Reviewsdrugs.com conducted a study on Prenavite Forte, and the result of the survey is set out below. It is noteworthy that the product of the survey is based on the perception and impressions of the visitors of the website as well as the views of Prenavite Forte consumers. We, as a result of this, advice that you do not base your therapeutic or medical decisions on this result, but rather consult your certified medical experts for their recommendations.
Visitor reported usefulNo survey data has been collected yet
Visitor reported side effectsNo survey data has been collected yet
Visitor reported price estimatesNo survey data has been collected yet
Visitor reported frequency of useNo survey data has been collected yet
Visitor reported dosesNo survey data has been collected yet
Visitor reported time for resultsNo survey data has been collected yet
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The information was verified by Dr. Arunabha Ray, MD Pharmacology