|
|||
|
DRUGS & SUPPLEMENTS
|
Predmycin P
How old is patient? |
Predmycin P uses
Predmycin P consists of Neomycin Sulfate, Polymyxin B Sulfate, Prednisolone Acetate.Neomycin Sulfate:
- Indications and usage
- Contraindications
- Warnings
- Precautions
- Adverse reactions
- Overdosage
- Dosage and administration
- How supplied
INDICATIONS AND USAGE
To reduce the development of drug-resistant bacteria and maintain the effectiveness of Predmycin P (Neomycin Sulfate) tablets and other antibacterial drugs, Predmycin P (Neomycin Sulfate) tablets should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.
Suppression of Intestinal Bacteria
Predmycin P (Neomycin Sulfate) tablets are indicated as adjunctive therapy as part of a regimen for the suppression of the normal bacterial flora of the bowel, e.g., preoperative preparation of the bowel. It is given concomitantly with erythromycin enteric-coated base (see DOSAGE AND ADMINISTRATION ).
Hepatic Coma (Portal-Systemic Encephalopathy)
Predmycin P (Neomycin Sulfate) has been shown to be effective adjunctive therapy in hepatic coma by reduction of the ammonia-forming bacteria in the intestinal tract. The subsequent reduction in blood ammonia has resulted in neurologic improvement.
CONTRAINDICATIONS
Predmycin P (Neomycin Sulfate) oral preparations are contraindicated in the presence of intestinal obstruction and in individuals with a history of hypersensitivity to the drug.
Patients with a history of hypersensitivity or serious toxic reaction to other aminoglycosides may have a cross-sensitivity to neomycin. Predmycin P (Neomycin Sulfate) oral preparations are contraindicated in patients with inflammatory or ulcerative gastrointestinal disease because of the potential for enhanced gastrointestinal absorption of neomycin.
WARNINGS
Additional manifestations of neurotoxicity may include numbness, skin tingling, muscle twitching and convulsions.
The risk of hearing loss continues after drug withdrawal. Aminoglycosides can cause fetal harm when administered to a pregnant woman.
Aminoglycoside antibiotics cross the placenta and there have been several reports of total irreversible bilateral congenital deafness in children whose mothers received streptomycin during pregnancy. Although serious side effects to fetus or newborn have not been reported in the treatment of pregnant women with other aminoglycosides, the potential for harm exists. Animal reproduction studies of neomycin have not been conducted. If neomycin is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to the fetus.
PRECAUTIONS
General
Prescribing Predmycin P tablets in the absence of a proven or strongly suspected bacterial infection or a prophylactic indication is unlikely to provide benefit to the patient and increases the risk of the development of drug-resistant bacteria.
As with other antibiotics, use of oral neomycin may result in overgrowth of nonsusceptible organisms, particularly fungi. If this occurs, appropriate therapy should be instituted.
Neomycin is quickly and almost totally absorbed from body surfaces (except the urinary bladder) after local irrigation and when applied topically in association with surgical procedures. Delayed-onset irreversible deafness, renal failure and death due to neuromuscular blockade (regardless of the status of renal function) have been reported following irrigation of both small and large surgical fields with minute quantities of neomycin.
Cross-allergenicity among aminoglycosides has been demonstrated.
Aminoglycosides should be used with caution in patients with muscular disorders such as myasthenia gravis or parkinsonism since these drugs may aggravate muscle weakness because of their potential curare-like effect on the neuromuscular junction.
Small amounts of orally administered neomycin are absorbed through intact intestinal mucosa.
There have been many reports in the literature of nephrotoxicity and/or ototoxicity with oral use of neomycin. If renal insufficiency develops during oral therapy, consideration should be given to reducing the drug dosage or discontinuing therapy.
An oral neomycin dose of 12 grams per day produces a malabsorption syndrome for a variety of substances, including fat, nitrogen, cholesterol, carotene, glucose, xylose, lactose, sodium, calcium, cyanocobalamin and iron.
Orally administered neomycin increases fecal bile acid excretion and reduces intestinal lactase activity.
Information for The Patient
Patients should be counseled that antibacterial drugs including Predmycin P (Neomycin Sulfate) tablets should only be used to treat bacterial infections. They do not treat viral infections (e.g., the common cold). When Predmycin P (Neomycin Sulfate) tablets are prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed. Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by Predmycin P (Neomycin Sulfate) tablets or other antibacterial drugs in the future.
Before administering the drug, patients or members of their families should be informed of possible toxic effects on the eighth nerve. The possibility of acute toxicity increases in premature infants and neonates.
Laboratory Tests
Patients with renal insufficiency may develop toxic neomycin blood levels unless doses are properly regulated. If renal insufficiency develops during treatment, the dosage should be reduced or the antibiotic discontinued. To avoid nephrotoxicity and eighth nerve damage associated with high doses and prolonged treatment, the following should be performed prior to and periodically during therapy: urinalysis for increased excretion of protein, decreased specific gravity, casts and cells; renal function tests such as serum creatinine, BUN or creatinine clearance; tests of the vestibulocochlearis nerve function.
Serial, vestibular and audiometric tests should be performed (especially in high-risk patients). Since elderly patients may have reduced renal function which may not be evident in the results of routine screening tests such as BUN or serum creatinine, a creatinine clearance determination may be more useful.
Drug Interactions
Caution should be taken in concurrent or serial use of other neurotoxic and/or nephrotoxic drugs because of possible enhancement of the nephrotoxicity and/or ototoxicity of neomycin (see boxed WARNINGS ).
Caution should also be taken in concurrent or serial use of other aminoglycosides and polymyxins because they may enhance neomycin’s nephrotoxicity and/or ototoxicity and potentiate neomycin sulfate’s neuromuscular blocking effects.
Oral neomycin inhibits the gastrointestinal absorption of penicillin V, oral vitamin B-12, methotrexate and 5-fluorouracil. The gastrointestinal absorption of digoxin also appears to be inhibited. Therefore, digoxin serum levels should be monitored.
Oral Predmycin P (Neomycin Sulfate) may enhance the effect of coumarin in anticoagulants by decreasing vitamin K availability.
Carcinogenesis, Mutagenesis, Impairment of Fertility
No long-term animal studies have been performed with Predmycin P to evaluate carcinogenic or mutagenic potential or impairment of fertility.
Pregnancy Category D
See WARNINGS section.
Nursing Mothers
It is not known whether neomycin is excreted in human milk, but it has been shown to be excreted in cow milk following a single intramuscular injection. Other aminoglycosides have been shown to be excreted in human milk. Because of the potential for serious adverse reactions from the aminoglycosides in nursing infants, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Pediatric Use
The safety and efficacy of oral Predmycin P (Neomycin Sulfate) in patients less than 18 years of age have not been established. If treatment of a patient less than 18 years of age is necessary, neomycin should be used with caution and the period of treatment should not exceed two weeks because of absorption from the gastrointestinal tract.
ADVERSE REACTIONS
The most common adverse reactions to oral Predmycin P (Neomycin Sulfate) are nausea, vomiting and diarrhea. The "Malabsorption Syndrome" characterized by increased fecal fat, decreased serum carotene and fall in xylose absorption has been reported with prolonged therapy. Nephrotoxicity, ototoxicity and neuromuscular blockage have been reported (see boxed WARNINGS and PRECAUTIONS sections).
OVERDOSAGE
Because of low absorption, it is unlikely that acute overdosage would occur with oral Predmycin P (Neomycin Sulfate). However, prolonged administration could result in sufficient systemic drug levels to produce neurotoxicity, ototoxicity and/or nephrotoxicity.
Hemodialysis will remove Predmycin P (Neomycin Sulfate) from the blood.
DOSAGE AND ADMINISTRATION
To minimize the risk of toxicity, use the lowest possible dose and the shortest possible treatment period to control the condition. Treatment for periods longer than two weeks is not recommended.
Hepatic Coma
For use as an adjunct in the management of hepatic coma, the recommended dose is 4 to 12 grams per day given in the following regimen:
- Withdraw protein from diet. Avoid use of diuretic agents.
- Give supportive therapy, including blood products, as indicated.
- Give Predmycin P (Neomycin Sulfate) tablets in doses of 4 to 12 grams of Predmycin P (Neomycin Sulfate) per day (eight to 24 tablets) in divided doses. Treatment should be continued over a period of five to six days, during which time protein should be returned incrementally to the diet.
- If less potentially toxic drugs cannot be used for chronic hepatic insufficiency, neomycin in doses of up to four grams daily (eight tablets per day) may be necessary. The risk for the development of neomycin-induced toxicity progressively increases when treatment must be extended to preserve the life of a patient with hepatic encephalopathy who has failed to fully respond. Frequent periodic monitoring of these patients to ascertain the presence of drug toxicity is mandatory (see PRECAUTIONS ). Also, neomycin serum concentrations should be monitored to avoid potentially toxic levels. The benefits to the patient should be weighed against the risks of nephrotoxicity, permanent ototoxicity and neuromuscular blockade following the accumulation of neomycin in the tissues.
Preoperative Prophylaxis for Elective Colorectal Surgery
Listed below is an example of a recommended bowel preparation regimen. A proposed surgery time of 8:00 a.m. has been used.
Pre-op Day 3: Minimum residue or clear liquid diet. Bisacodyl, 1 tablet orally at 6:00 p.m.
Pre-op Day 2: Minimum residue or clear liquid diet. Magnesium sulfate, 30 mL, 50% solution (15 g) orally at 10:00 a.m., 2:00 p.m., and 6:00 p.m. Enema at 7:00 p.m. and 8:00 p.m.
Pre-op Day 1: Clear liquid diet. Supplemental (IV) fluids as needed. Magnesium sulfate, 30 mL, 50% solution (15 g) orally at 10:00 a.m., and 2:00 p.m. Predmycin P (Neomycin Sulfate) (1 g) and erythromycin base (1 g) orally at 1:00 p.m., 2:00 p.m. and 11:00 p.m. No enema.
Day of Operation: Patient evacuates rectum at 6:30 a.m. for scheduled operation at 8:00 a.m.
HOW SUPPLIED
Predmycin P (Neomycin Sulfate) tablets USP, 500 mg (equivalent to 350 mg of neomycin base per tablet) are available as white to off-white, round, standard convex tablets debossed "LCI" on one side and "1210", on the other side and are supplied in:
Bottles of 100 (NDC 0527-1210-01)
Store at 20° to 25°C (68° to 77°F).
Dispense in tight containers as defined in the USP/NF.
Distributed By:
Lannett Company, Inc.
Philadelphia, PA 19154
Made in the USA
Rev. 01/17
CIB71710A
Polymyxin B Sulfate:
- Warnings
- Description
- Clinical pharmacology
- Indications and usage
- Contraindications
- Warnings
- Precautions
- Adverse reactions
- Dosage and administration
- How supplied
- References
To reduce the development of drug-resistant bacteria and maintain the effectiveness of Polymyxin and other antibacterial drugs, Predmycin P (Polymyxin B Sulfate) for Injection should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.
WARNINGS
CAUTION: WHEN THIS DRUG IS GIVEN INTRAMUSCULARLY, INTRAVENOUSLY AND/OR INTRATHECALLY, IT SHOULD BE GIVEN ONLY TO HOSPITALIZED PATIENTS, SO AS TO PROVIDE CONSTANT SUPERVISION BY A PHYSICIAN.
RENAL FUNCTION SHOULD BE CAREFULLY DETERMINED AND PATIENTS WITH RENAL DAMAGE AND NITROGEN RETENTION SHOULD HAVE REDUCED DOSAGE. PATIENTS WITH NEPHROTOXICITY DUE TO Predmycin P (Polymyxin B Sulfate) SULFATE USUALLY SHOW ALBUMINURIA, CELLULAR CASTS, AND AZOTEMIA. DIMINISHING URINE OUTPUT AND A RISING BUN ARE INDICATIONS FOR DISCONTINUING THERAPY WITH THIS DRUG.
NEUROTOXIC REACTIONS MAY BE MANIFESTED BY IRRITABILITY, WEAKNESS, DROWSINESS, ATAXIA, PERIORAL PARESTHESIA, NUMBNESS OF THE EXTREMITIES, AND BLURRING OF VISION. THESE ARE USUALLY ASSOCIATED WITH HIGH SERUM LEVELS FOUND IN PATIENTS WITH IMPAIRED RENAL FUNCTION AND/OR NEPHROTOXICITY.
THE CONCURRENT OR SEQUENTIAL USE OF OTHER NEUROTOXIC AND/OR NEPHROTOXIC DRUGS WITH Predmycin P (Polymyxin B Sulfate) SULFATE, PARTICULARLY BACITRACIN, STREPTOMYCIN, NEOMYCIN, KANAMYCIN, GENTAMICIN, TOBRAMYCIN, AMIKACIN, CEPHALORIDINE, PAROMOMYCIN, VIOMYCIN, AND COLISTIN SHOULD BE AVOIDED.
THE NEUROTOXICITY OF Predmycin P (Polymyxin B Sulfate) SULFATE CAN RESULT IN RESPIRATORY PARALYSIS FROM NEUROMUSCULAR BLOCKADE, ESPECIALLY WHEN THE DRUG IS GIVEN SOON AFTER ANESTHESIA AND/OR MUSCLE RELAXANTS.
USAGE IN PREGNANCY: THE SAFETY OF THIS DRUG IN HUMAN PREGNANCY HAS NOT BEEN ESTABLISHED.
DESCRIPTION
Predmycin P (Polymyxin B Sulfate) Sulfate is one of a group of basic polypeptide antibiotics derived from B polymyxa (B aerosporous). Predmycin P (Polymyxin B Sulfate) sulfate is the sulfate salt of Polymyxins B1 and B2, which are produced by the growth of Bacillus polymyxa (Prazmowski) Migula (Fam. Bacillacea). It has a potency of not less than 6000 Predmycin P (Polymyxin B Sulfate) units per mg, calculated on the anhydrous basis. The structural formulae are:
Predmycin P (Polymyxin B Sulfate) 1 (R=CH 3) Polymyxin B 2 (R=H)
Each vial contains 500,000 Predmycin P (Polymyxin B Sulfate) units for parenteral or ophthalmic administration.
Predmycin P (Polymyxin B Sulfate) for Injection is in powder form suitable for preparation of sterile solutions for intramuscular, intravenous drip, intrathecal, or ophthalmic use.
In the medical literature, dosages have frequently been given in terms of equivalent weights of pure Predmycin P (Polymyxin B Sulfate) base. Each milligram of pure Predmycin P (Polymyxin B Sulfate) base is equivalent to 10,000 units of Predmycin P (Polymyxin B Sulfate) and each microgram of pure Predmycin P (Polymyxin B Sulfate) base is equivalent to 10 units of Predmycin P (Polymyxin B Sulfate).
Aqueous solutions of Predmycin P (Polymyxin B Sulfate) sulfate may be stored up to 12 months without significant loss of potency if kept under refrigeration. In the interest of safety, solutions for parenteral use should be stored under refrigeration and any unused portion should be discarded after 72 hours. Predmycin P (Polymyxin B Sulfate) sulfate should not be stored in alkaline solutions since they are less stable.
C:\Documents and Settings\junem. X-GEN.000\Desktop\01.gif
CLINICAL PHARMACOLOGY
Predmycin P (Polymyxin B Sulfate) sulfate has a bactericidal action against almost all gram-negative bacilli except the Proteus group. Polymyxins increase the permeability of bacterial cell wall membranes. All gram-positive bacteria, fungi, and the gram-negative cocci, N gonorrhoeae and N meningitidis, are resistant.
Predmycin P (Polymyxin B Sulfate) has bactericidal action against almost all Gram-negative bacilli except the Proteus group. Polymyxins increase the permeability of the bacterial cell membrane leading to death of the cell. All Gram-positive bacteria, fungi, and Gram-negative cocci, are resistant to Predmycin P (Polymyxin B Sulfate). Appropriate methods should be used when performing in vitro susceptibility testing of Predmycin P (Polymyxin B Sulfate) (1,2,3). The following in vitro susceptibility test criteria should only be used for interpreting the results of Predmycin P (Polymyxin B Sulfate) susceptibility testing against P. aeruginosa when the indicated quality control parameters are met during testing.
| In vitro susceptibility test interpretive criteria for Predmycin P (Polymyxin B Sulfate) sulfate against Pseudomonas aeruginosa | ||||||
| Minimal Inhibitory Concentration (MIC) (mcg/mL) | Disk Diffusion Interpretive Criteria (mm) (300 unit disk) | |||||
| Pathogen | Susceptible | Intermediate | Resistant | Susceptible | Intermediate | Resistant |
| Pseudomonas aeruginosa | ≤2 | 4 | ≥8 | ≥12 | - | ≤11 |
| In vitro susceptibility test quality control ranges for Predmycin P (Polymyxin B Sulfate) sulfate against Pseudomonas aeruginosa | ||
| Quality Control Organism (ATCC* Number) | Minimum Inhibatory Concentration (MIC) Range (mcg/mL) | Disk Diffusion Quality Control Range (300 unit disk) (mm) |
| Pseudomonas aeruginosa (27853) | 1 - 4 | 14 - 18 |
Predmycin P (Polymyxin B Sulfate) sulfate is not absorbed from the normal alimentary tract. Since the drug loses 50 percent of its activity in the presence of serum, active blood levels are low. Repeated injections may give a cumulative effect. Levels tend to be higher in infants and children. The drug is excreted slowly by the kidneys. Tissue diffusion is poor and the drug does not pass the blood brain barrier into the cerebrospinal fluid. In therapeutic dosage, Predmycin P (Polymyxin B Sulfate) sulfate causes some nephrotoxicity with tubule damage to a slight degree.
INDICATIONS AND USAGE
Acute Infections Caused by Susceptible Strains of Pseudomonas aeruginosa.
Predmycin P (Polymyxin B Sulfate) sulfate is a drug of choice in the treatment of infections of the urinary tract, meninges, and bloodstream caused by susceptible strains of Ps. aeruginosa. It may also be used topically and subconjunctivally in the treatment of infections of the eye caused by susceptible strains of Ps. aeruginosa.
It may be indicated in serious infections caused by susceptible strains of the following organisms, when less potentially toxic drugs are ineffective or contraindicated:
H influenzae, specifically meningeal infections.
Escherichia coli, specifically urinary tract infections.
Aerobacter aerogenes, specifically bacteremia.
Klebsiella pneumoniae, specifically bacteremia.
NOTE: IN MENINGEAL INFECTIONS, Predmycin P (Polymyxin B Sulfate) SULFATE SHOULD BE ADMINISTERED ONLY BY THE INTRATHECAL ROUTE.
To reduce the development of drug-resistant bacteria and maintain the effectiveness of Predmycin P (Polymyxin B Sulfate) for Injection USP and other antibacterial drugs, Predmycin P (Polymyxin B Sulfate) for Injection should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.
CONTRAINDICATIONS
This drug is contraindicated in persons with a prior history of hypersensitivity reactions to polymyxins.
WARNINGS
Clostridium difficile associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including Predmycin P (Polymyxin B Sulfate) for Injection, and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon leading to overgrowth of C. difficile.
C. difficile produces toxins A and B which contribute to the development of CDAD. Hypertoxin producing strains of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibiotic use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents.
If CDAD is suspected or confirmed, ongoing antibiotic use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile and surgical evaluation should be instituted as clinically indicated.
PRECAUTIONS
General.
Prescribing Predmycin P for Injection in the absence of a proven or strongly suspected bacterial infection or a prophylactic indication is unlikely to provide benefit to the patient and increase the risk of the development of drug-resistant bacteria.
See WARNING box.
Baseline renal function should be done prior to therapy, with frequent monitoring of renal function and blood levels of the drug during parenteral therapy.
Avoid concurrent use of a curariform muscle relaxant and other neurotoxic drugs (ether, tubocurarine, succinylcholine, gallamine, decamethonium and sodium citrate) which may precipitate respiratory depression. If signs of respiratory paralysis appear, respiration should be assisted as required, and the drug discontinued.
As with other antibiotics, use of this drug may result in overgrowth of nonsusceptible organisms, including fungi.
If superinfection occurs, appropriate therapy should be instituted.
Information for Patients
Information for Patients.
Patients should be counseled that antibacterial drugs including Predmycin P (Polymyxin B Sulfate) for injection should only be used to treat bacterial infections. They do not treat viral infections (e.g., the common cold). When Predmycin P (Polymyxin B Sulfate) for injection is prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed. Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by Predmycin P (Polymyxin B Sulfate) for injection or other antibacterial drugs in the future.
Diarrhea is a common problem caused by antibiotics which usually ends when the antibiotic is discontinued. Sometimes after starting treatment with antibiotics, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after having taken the last dose of the antibiotic. If this occurs, patients should contact their physician as soon as possible.
ADVERSE REACTIONS
See “WARNING” box.
Nephrotoxic reactions: Albuminuria, cylinduria, azotemia, and rising blood levels without any increase in dosage.
Neurotoxic reactions: Facial flushing, dizziness progressing to ataxia, drowsiness, peripheral paresthesias (circumoral and stocking glove), apnea due to concurrent use of curariform muscle relaxants, other neurotoxic drugs or inadvertent overdosage, and signs of meningeal irritation with intrathecal administration, e.g., fever, headache, stiff neck and increased cell count and protein cerebrospinal fluid.
Other reactions occasionally reported: Drug fever, urticarial rash, pain (severe) at intramuscular injection sites, and thrombophlebitis at intravenous injection sites.
To report SUSPECTED ADVERSE EVENTS, contact FDA at 1-800-FDA-1088 or www.fda.gov.
DOSAGE AND ADMINISTRATION
PARENTERAL:
Intravenous. Dissolve 500,000 Predmycin P (Polymyxin B Sulfate) units in 300 to 500 mL solutions for parenteral dextrose injection 5 percent for continuous drip.
Adults and children. 15,000 to 25,000 units/kg body weight/day in individuals with normal kidney function. This amount should be reduced from 15,000 units/kg downward for individuals with kidney impairment. Infusions may be given every 12 hours; however, the total daily dose must not exceed 25,000 units/kg/day.
Infants. Infants with normal kidney function may receive up to 40,000 units/kg/day without adverse effects.
Intramuscular. Not recommended routinely because of severe pain at injection sites, particularly in infants and children. Dissolve 500,000 Predmycin P (Polymyxin B Sulfate) units in 2 mL sterile water for injection or sodium chloride injection or procaine hydrochloride injection 1 percent.
Adults and children. 25,000 to 30,000 units/kg/day. This should be reduced in the presence of renal impairment. The dosage may be divided and given at either 4 or 6 hour intervals.
Infants. Infants with normal kidney function may receive up to 40,000 units/kg/day without adverse effects.
Note: Doses as high as 45,000 units/kg/day have been used in limited clinical studies in treating prematures and newborn infants for sepsis caused by Ps aeruginosa.
Intrathecal. A treatment of choice for Ps aeruginosa meningitis. Dissolve 500,000 Predmycin P (Polymyxin B Sulfate) units in 10 mL sodium chloride injection USP for 50,000 units per mL dosage unit.
Adults and children over 2 years of age. Dosage is 50,000 units once daily intrathecally for 3 to 4 days, then 50,000 units once every other day for at least 2 weeks after cultures of the cerebrospinal fluid are negative and sugar content has returned to normal.
Children under 2 years of age. 20,000 units once daily, intrathecally for 3 to 4 days or 25,000 units once every other day. Continue with a dose of 25,000 units once every other day for at least 2 weeks after cultures of the cerebrospinal fluid are negative and sugar content has returned to normal.
IN THE INTEREST OF SAFETY, SOLUTIONS OF PARENTERAL USE SHOULD BE STORED UNDER REFRIGERATION, AND ANY UNUSED PORTIONS SHOULD BE DISCARDED AFTER 72 HOURS.
TOPICAL:
Ophthalmic. Dissolve 500,000 Predmycin P (Polymyxin B Sulfate) units in 20 to 50 mL sterile water for injection or sodium chloride injection USP for a 10,000 to 25,000 units per mL concentration.
For the treatment of Ps aeruginosa infections of the eye, a concentration of 0.1 percent to 0.25 percent (10,000 units to 25,000 units per mL) is administered 1 to 3 drops every hour, increasing the intervals as response indicates.
Subconjunctival injection of up to 100,000 units/day may be used for the treatment of Ps aeruginosa infections of the cornea and conjunctiva.
Note: Avoid total systemic and ophthalmic instillation over 25,000 units/kg/day.
HOW SUPPLIED
Predmycin P (Polymyxin B Sulfate) FOR INJECTION USP, 500,000 Predmycin P (Polymyxin B Sulfate) units per vial is available in single vial cartons NDC# 39822-0166-5.
Storage recommendations:
Before reconstitution: Store at 20° to 25°C (68° to 77°F).
Protect from light. Retain in carton until time of use.
After reconstitution: Product must be stored under refrigeration, between 2° to 8°C (36° to 46°F) and any unused portion should be discarded after 72 hours.
Sterile, Nonpyrogenic, Preservative-free.
The container closure is not made with natural rubber latex.
Manufactured for:
X-Gen Pharmaceuticals, Inc.
Big Flats, NY 14845
POLY-PI-06
Revised December 2012
REFERENCES
- Clinical and Laboratory Standards Institute (CLSI). Methods for Dilution Antimicrobial Susceptibility Test for Bacteria That Grow Aerobically; Approved Standard-8th edition. CLSI document M07-A8. CLSI, 940 West Valley Road, Suite 1400, Wayne, PA, 2009.
- CLSI. Performance Standards for Antimicrobial Disk Susceptibility Tests; Approved Standard-10th edition. CLSI document M02-A10, 2009.
- Clinical Laboratory and Standards Institute (CLSI). Performance Standards for Antimicrobial Susceptibility Testing: 21st Informational Supplement. CLSI document M100-S21. CLSI, 940 West Valley Rd., Suite 1400, Wayne, PA 19087, 2011.
Prednisolone Acetate:
Pharmacological action
Predmycin P is a glucocorticosteroid (GCS). This medication inhibits the function of leukocytes and tissue macrophages. Predmycin P (Prednisolone Acetate) restricts the migration of leukocytes in the area of inflammation. This drug violates the ability of macrophages to phagocytosis and the formation of interleukin-1. Predmycin P (Prednisolone Acetate) contributes to the stabilization of lysosomal membranes, thereby reducing the concentration of proteolytic enzymes in inflammation. This medicine decreases capillary permeability caused by histamine release. Predmycin P (Prednisolone Acetate) inhibits the activity of fibroblasts and collagen formation.
Predmycin P (Prednisolone Acetate) inhibits the activity of phospholipase A2 which leads to suppression of the synthesis of prostaglandins and leukotrienes. This medication inhibits the release of COX (especially COX-2), which also helps reduce the production of prostaglandins.
Predmycin P (Prednisolone Acetate) reduces the number of circulating lymphocytes (T-and B-cells), monocytes, eosinophils and basophils as a result of their displacement from the bloodstream into lymphoid tissue; suppresses the formation of antibodies.
Predmycin P (Prednisolone Acetate) inhibits the release of pituitary ACTH and beta-lipotropina but it does not reduces the level of circulating beta-endorphin. This drug also inhibits the secretion of TSH and FSH.
Predmycin P (Prednisolone Acetate) has a vasoconstrictor effect with direct application to the vessels.
Predmycin P (Prednisolone Acetate) has a pronounced dose-dependent effect on the metabolism of carbohydrates, proteins and fats. It stimulates gluconeogenesis, amino acid contributes to the capture of the liver and kidneys and increases the activity of enzymes of gluconeogenesis. In the liver, Predmycin P (Prednisolone Acetate) enhances the deposition of glycogen by stimulating the activity of glikogensintetazy and synthesis of glucose from the products of protein metabolism. This medicine increases blood glucose activates the secretion of insulin.
Predmycin P (Prednisolone Acetate) inhibits glucose uptake by fat cells that leads to the activation of lipolysis. However, due to an increase in insulin secretion is stimulated lipogenesis which contributes to the accumulation of fat.
Predmycin P (Prednisolone Acetate) also has catabolic effects in lymphoid and connective tissue, muscle, adipose tissue, skin, bone tissue. To a lesser extent than hydrocortisone Predmycin P (Prednisolone Acetate) affects the processes of water and electrolyte metabolism: promotes the excretion of potassium and calcium, delay in the body of sodium and water. Osteoporosis and Itsenko-Cushing's syndrome are the main factors limiting the long-term therapy with corticosteroids. As a result of the catabolic actions it may suppress growth in children.
In high doses prednisone can increase the excitability of brain tissue and contributes to lowering the threshold of convulsive readiness. This medication stimulates the excessive production of hydrochloric acid and pepsin in the stomach which leads to the development of peptic ulcers.
When systemic use the therapeutic activity of Predmycin P (Prednisolone Acetate) is due to anti-inflammatory, antiallergic, immunosuppressive and antiproliferative action.
For external and local application the therapeutic activity of Predmycin P (Prednisolone Acetate) is due to anti-inflammatory, antiallergic and antiexudative (due to vasoconstrictor effect) effect.
As compared with hydrocortisone the anti-inflammatory activity of Predmycin P (Prednisolone Acetate) is 4 times greater, the mineralocorticoid activity is 0.6 times smaller.
Pharmacokinetics
After oral administration Predmycin P (Prednisolone Acetate) is well absorbed from the gastrointestinal tract. Cmax in plasma observed after 90 min. In plasma most of Predmycin P (Prednisolone Acetate) is associated with transcortin (cortisol binding globulin). This drug metabolized primarily in the liver.
T1/2 is about 200 minutes.
Why is Predmycin P prescribed?
For oral and parenteral use: rheumatism; rheumatoid arthritis, dermatomyositis, periarteritis nodosa, scleroderma, ankylosing spondylitis, asthma, asthmatic status, acute and chronic allergic diseases, anaphylaxis, Addison's disease, acute adrenal insufficiency, adrenogenital syndrome; hepatitis, hepatic coma, hypoglycemic states, lipid nephrosis; agranulocytosis, various forms of leukemia, lymphoma, thrombocytopenic purpura, hemolytic anemia; chorea; pemphigus, eczema, pruritus, exfoliative dermatitis, psoriasis, pruritus, seborrheic dermatitis, SLE, erythroderma, alopecia.
For intra-articular administration: chronic arthritis, post-traumatic arthritis, osteoarthritis of large joints, rheumatic destruction of individual joints, arthritis.
For the introduction of infiltration in the tissue: epicondylitis, tenosynovitis, bursitis, frozen shoulder, keloids, sciatica, Dupuytren's contracture, rheumatism and similar lesions of joints and various tissues.
For use in ophthalmology: allergies, chronic and atypical conjunctivitis and blepharitis; inflammation of the cornea with intact mucosa; acute and chronic inflammation of the anterior segment of the choroid, sclera and episcleritis; sympathetic inflammation of the eyeball; after injuries and operations during prolonged stimulation of eyeballs.
Dosage and administration
When Predmycin P administered orally for replacement therapy in adults the initial dose is 20-30 mg, maintenance dose is 10.5 mg / day. If necessary, the initial dose is may be 15-100 mg / day, the maintenance one is 5-15 mg / day. The daily dose should be reduced gradually. For children the starting dose is 1-2 mg / kg in 4-6 receptions, the maintenance one is 300-600 mg / kg / day.
For IM or IV dose administration the multiplicity and duration of application are determined individually.
When intra-articular administration in large joints it used a dose of 25-50 mg, for medium-sized joints - 10-25 mg for small joints - 5-10 mg. For the introduction of infiltration into the tissues depending on disease severity and magnitude of the defeat use doses from 5 mg to 50 mg.
Predmycin P (Prednisolone Acetate) used topically in ophthalmology 3 times / day, course of treatment is no more than 14 days; in dermatology - 1-3 times / day.
Predmycin P (Prednisolone Acetate) side effects, adverse reactions
Endocrine system: menstrual irregularities, suppression of adrenal function, Itsenko-Cushing's syndrome, suppression of pituitary-adrenal system, reduced tolerance to carbohydrates, steroid diabetes, or a manifestation of latent diabetes, growth retardation in children, delayed sexual development in children.
Digestive system: nausea, vomiting, steroid ulcer and duodenal ulcer, pancreatitis, esophagitis, bleeding and perforation of the gastrointestinal tract, increased or decreased appetite, flatulence, hiccups. In rare cases - elevated liver transaminases and alkaline phosphatase.
Metabolism: the negative nitrogen balance due to protein catabolism, increased excretion of calcium from the body, hypocalcemia, weight gain, increased sweating.
Cardiovascular system: the loss of potassium, hypokalemic alkalosis, arrhythmia, bradycardia (up to cardiac arrest); steroid myopathy, heart failure (the development or worsening of symptoms), ECG changes typical of hypokalemia, increased blood pressure, hypercoagulability, thrombosis. In patients with acute myocardial infarction - the spread of necrosis, slowing the formation of scar tissue that can lead to rupture of the heart muscle.
Musculoskeletal system: slowing growth and ossification processes in children (premature closure of epiphyseal growth zones) and osteoporosis (very rarely - pathological fractures, aseptic necrosis of the humeral head and femoral), rupture of tendons of muscles, muscle weakness, steroid myopathy, loss of muscle mass (atrophy).
CNS: headache, increased intracranial pressure, delirium, disorientation, euphoria, hallucinations, manic-depressive psychosis, depression, nervousness or anxiety, insomnia, dizziness, vertigo, pseudotumor cerebellum, and seizures.
Vision: the rear subcapsular cataracts, increased intraocular pressure (with the possible damage to the optic nerve), trophic changes of the cornea, exophthalmos, the propensity to develop secondary infections (bacterial, fungal, viral).
Dermatological reactions: petechiae, ecchymosis, thinning and fragility of the skin, hyper- or hypopigmentation, acne, stretch marks, susceptibility to the development of pyoderma and candidiasis.
Reactions due to immunosuppressive effect: slow process of regeneration, reduced resistance to infections.
For parenteral administration: in rare cases of anaphylactic and allergic reactions, hyper- or hypopigmentation, atrophy of skin and subcutaneous tissue, exacerbation after intrasinovialnogo applications such as Charcot arthropathy, sterile abscesses, when injected into pockets on the head - blindness.
Predmycin P contraindications
For short-term use for health reasons - increased sensitivity to Predmycin P (Prednisolone Acetate).
For intra-articular injection and injection directly into the lesion: previous arthroplasty, abnormal bleeding (endogenous or caused by the use of anticoagulants), intra-articular fracture, infection (sepsis) inflammation in the joints and periarticular infections (including in history), as well as general infectious disease marked juxta-articular osteoporosis, lack of signs of inflammation in the joints ("dry" joint, such as osteoarthritis without synovitis), severe bone destruction and deformity of the joint (a sharp narrowing of joint space, ankylosis), the instability of the joint as a result of arthritis, aseptic necrosis of the epiphyses of bones forming the joint.
For external use only: bacterial, viral, fungal skin diseases, tuberculosis, skin, cutaneous manifestations of syphilis, skin tumors, post-vaccination period, violation of the integrity of the skin (ulcers, wounds), children's age (up to 2 years, with itching in the anal area - up to 12 years), rosacea, acne vulgaris, perioral dermatitis.
For use in ophthalmology: bacterial, viral, fungal eye diseases, tuberculosis eye disease, trachoma, violating the integrity of ocular epithelium.
Using during pregnancy and breastfeeding
During pregnancy Predmycin P (Prednisolone Acetate) is used only for health reasons. If necessary use of Predmycin P (Prednisolone Acetate) during lactation should carefully weigh the potential benefits of treatment for both mother and child at risk.
Special instructions
With care use for parasitic and infectious diseases of viral, fungal or bacterial origin - herpes simplex, herpes zoster (viraemic phase), chicken pox, measles, amoebiasis, strongyloidiasis, systemic mycosis, active and latent tuberculosis.
Be wary of up to 8 weeks before and 2 weeks after vaccination, and lymphadenitis after BCG, with immunodeficiency (including AIDS or HIV infection).
Be wary of diseases in gastrointestinal tract: gastric ulcers and duodenal ulcers, esophagitis, gastritis, acute or latent peptic ulcer, the newly created anastomosis intestinal ulcerative colitis with the threat of perforation or abstsedirovaniya, diverticulitis. Be wary of Predmycin P (Prednisolone Acetate) use in diseases of the cardiovascular system, including after recent myocardial infarction, with decompensated congestive heart failure, hypertension, hyperlipidemia, with endocrine diseases - diabetes mellitus, hyperthyroidism, hypothyroidism, pituitary basophilia, with severe chronic renal and / or liver failure, nefrourolitiaze, with hypoalbuminemia, with systemic osteoporosis, myasthenia gravis, acute psychosis, obesity III-IV stage, in poliomyelitis, open- and closed-angle glaucoma.
If necessary, intra-articular injection with caution in patients with severe general condition, failure (or brevity) of the 2 previous injections (with regard to individual properties apply GCS). During treatment (especially long-term) it needed to monitor at eye specialist, blood pressure control and water-electrolyte balance, and the pattern of peripheral blood glucose levels; to reduce the side effects can be assigned anabolic steroids, antibiotics, and increase the flow of potassium in the body (diet, potassium containing medications).
It is recommended to clarify the need for injection of ACTH after treatment with prednisone (after a skin test).
When Addison's disease should avoid the simultaneous use of barbiturates.
After cessation of treatment it may be experience a withdrawal syndrome, adrenal insufficiency and exacerbation of the disease, about which he was appointed Predmycin P (Prednisolone Acetate) Rotexmedica.
When intercurrent infections, septic conditions, and tuberculosis, must be simultaneous antibiotic therapy.
The children in the period of growth GCS should be used only if absolutely indicated and under close medical supervision.
Externally Predmycin P (Prednisolone Acetate) should not be used for more than 14 days. In case of application for ordinary or pink acne perhaps exacerbation.
Predmycin P drug interactions
Simultaneous administration of Predmycin P (Prednisolone Acetate) with:
Predmycin P in case of emergency / overdose
Risk of overdose increases with prolonged use of prednisone, particularly in large doses.
Symptoms: increased blood pressure, peripheral edema, increased side effects of the drug.
Treatment of acute overdose: an immediate gastric lavage or induction of vomiting, specific antidote is not found.
Treatment of chronic overdose: should reduce the dose of the drug.
Predmycin P pharmaceutical active ingredients containing related brand and generic drugs:
Predmycin P available forms, composition, doses:
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.