DESCRIPTION
Nystatin is an antimycotic polyene antibiotic obtained from . Its structural formula: Streptomyces noursei
C H NO M.W. 926.13 477517
Nystatin tablets contain the inactive ingredients: Corn Starch, Povidone, Compressible Sugar, Microcrystalline Cellulose, Sodium Starch Glycolate, Talc, Magnesium Stearate, Purified Water, and Coloring.
CLINICAL PHARMACOLOGY
Pharmacokinetics
Gastrointestinal absorption of nystatin is insignificant. Most orally administered nystatin is passed unchanged in the stool. In patients with renal insufficiency receiving oral therapy with conventional dosage forms, significant plasma concentrations of nystatin may occasionally occur.
Microbiology
Nystatin is both fungistatic and fungicidal against a wide variety of yeasts and yeast like fungi. demonstrates no significant resistance to nystatin on repeated subculture in increasing levels of nystatin; other species become quite resistant. Generally, resistance does not develop . Nystatin acts by binding to sterols in the cell membrane of susceptible species with a resultant change in membrane permeability allowing leakage of intracellular components. Nystatin exhibits no appreciable activity against bacteria, protozoa, or viruses. in vitroCandida albicansin vitroCandidain vivoCandida
INDICATIONS AND USAGE
Nystatin Tablets are intended for the treatment of non-esophageal mucus membrane gastrointestinal candidiasis.
CONTRAINDICATIONS
Nystatin Tablets are contraindicated in patients with a history of hypersensitivity to any of their components.
PRECAUTIONS
General
This medication is not to be used for the treatment of systemic mycoses. Discontinue treatment if sensitization or irritation is reported during use.
Carcinogenesis, Mutagenesis, Impairment of Fertility
No long-term animal studies have been performed to evaluate carcinogenic potential. There also have been no studies to determine mutagenicity or whether this medication affects fertility in males or females.
ADVERSE REACTIONS
Nystatin is well tolerated even with prolonged therapy. Oral irritation and sensitization have been reported (see ). PRECAUTIONS, General
Gastrointestinal
Diarrhea (including one case of bloody diarrhea), nausea, vomiting, gastrointestinal upset/disturbances.
OVERDOSAGE
Oral doses of nystatin in excess of five million units daily have caused nausea and gastrointestinal upset. There have been no reports of serious toxic effects of superinfections (see ). CLINICALPHARMACOLOGY, Pharmacokinetics
