Official product label reference
Nystatin — Kesin Pharma Corporation
This page contains 18 source sections for NYSTATIN, oral route. Label set 50737729-a4a4-e747-e063-6394a90adcc5, version 1.
Retrieved 2026-10-02 · openFDA dataset updated 2026-10-02 · Check the current DailyMed label
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Uses described in the label
INDICATIONS AND USAGE Nystatin Oral Suspension is indicated for the treatment of candidiasis in the oral cavity.
Dosage and administration — label text
DOSAGE AND ADMINISTRATION INFANTS: 2 mL (200,000 units) four times daily (in infants and young children, use dropper to place one-half of dose in each side of mouth and avoid feeding for 5 to 10 minutes). NOTE: L imited clinical studies in premature and low birth weight infants indicate that 1 mL four times daily is effective. CHILDREN AND ADULTS: 4 to 6 mL (400,000 to 600,000 units) four times daily (one-half of dose in each side of mouth). The preparation should be retained in the mouth as long as possible before swallowing. Continue treatment for at least 48 hours after perioral symptoms have disappeared and cultures demonstrate eradication of Candida albicans .
Contraindications
CONTRAINDICATIONS The preparation is contraindicated in patients with a history of hypersensitivity to any of its components.
Adverse reactions
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. Dermatologic : Rash, including urticaria has been reported rarely. Stevens-Johnson syndrome has been reported very rarely. Other: Tachycardia, bronchospasm, facial swelling, and non-specific myalgia have also been rarely reported. To report SUSPECTED ADVERSE REACTIONS, contact Kesin Pharma at 1-833-537-4679 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Product description
DESCRIPTION Nystatin is an antimycotic polyene antibiotic obtained from Streptomyces noursei . Structural formula: Nystatin Oral Suspension, for oral administration, is cherry/mint flavored, containing 100,000 USP Nystatin Units per mL. Inactive ingredients: cherry flavor, dibasic sodium phosphate heptahydrate, disodium edetate, glycerin, methylparaben, monobasic sodium phosphate monohydrate, peppermint oil, propylparaben, sodium benzoate, sodium hexametaphosphate, and sucrose. image description
Clinical pharmacology
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 in vitro against a wide variety of yeasts and yeast-like fungi. Candida albicans demonstrates no significant resistance to nystatin in vitro on repeated subculture in increasing levels o f nystatin; other Candida species become quite resistant. Generally, resistance does not develop in vivo. Nystatin acts by binding to sterols in the cell membrane of susceptible Candida species with a resultant change in membrane permeability allowing leakage of intracellular components. Nystatin exhibits no appreciable activity against bacteria, protozoa, or viruses.
Pharmacokinetics
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
Microbiology Nystatin is both fungistatic and fungicidal in vitro against a wide variety of yeasts and yeast-like fungi. Candida albicans demonstrates no significant resistance to nystatin in vitro on repeated subculture in increasing levels o f nystatin; other Candida species become quite resistant. Generally, resistance does not develop in vivo. Nystatin acts by binding to sterols in the cell membrane of susceptible Candida species with a resultant change in membrane permeability allowing leakage of intracellular components. Nystatin exhibits no appreciable activity against bacteria, protozoa, or viruses.
Precautions
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. Pregnancy Teratogenic Effects Category C Animal reproduction studies have not been conducted with nystatin oral suspension. It is also not known whether nystatin oral suspension can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Nystatin oral suspension should be given to a pregnant woman only if clearly needed. Nursing Mothers It is not known whether nystatin is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when nystatin is administered to a nursing woman. Pediatric Use See DOSAGE AND ADMINISTRATION.
General 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 and mutagenesis and impairment of fertility
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.
Pregnancy
Pregnancy Teratogenic Effects Category C Animal reproduction studies have not been conducted with nystatin oral suspension. It is also not known whether nystatin oral suspension can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Nystatin oral suspension should be given to a pregnant woman only if clearly needed. Nursing Mothers It is not known whether nystatin is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when nystatin is administered to a nursing woman. Pediatric Use See DOSAGE AND ADMINISTRATION.
Teratogenic effects
Teratogenic Effects Category C Animal reproduction studies have not been conducted with nystatin oral suspension. It is also not known whether nystatin oral suspension can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Nystatin oral suspension should be given to a pregnant woman only if clearly needed.
Breastfeeding
Nursing Mothers It is not known whether nystatin is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when nystatin is administered to a nursing woman.
Children and adolescents
Pediatric Use See DOSAGE AND ADMINISTRATION.
Overdose information
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 CLINICAL PHARMACOLOGY, Pharmacokinetics ).
Supply and packaging
HOW SUPPLIED Nystatin Oral Suspension, USP 100,000 USP Nystatin Units per mL, is available as a cherry-mint flavored, yellow, ready-to-use suspension, supplied in the following oral dosage forms: NDC 81033-015-60: 60 mL bottle with a 1 mL calibrated dropper NDC 81033-015-16: 16 oz (473 mL) bottle Rx Only
Storage and handling
SHAKE WELL BEFORE USE SHAKE WELL BEFORE USE Store at 20°C to 25°C (68°F to 77°F); excursions permitted between 15° C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. AVOID FREEZING Pharmacists: Dispense in a tight, light-resistant container as defined in the USP. Distributed by: Kesin Pharma Oldsmar, FL 34677 Revised: 12/2025 PI-015B-V01 Kesin Pharma Logo
Official sources and product identifiers
- DailyMed — complete source labelVerify the current version and original formatting, including tables and diagrams.
- openFDA — structured source recordMachine-readable label source, linked by the exact label set ID.
- Drugs@FDA application ANDA062832Application history where available; verify the specific product and indication.
Substances listed: NYSTATIN
RxNorm identifiers: 312055
Package NDC codes
81033-015-16, 81033-015-60
Further research and background
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Coverage and corrections
The text is extracted from a US structured product label. Tables are represented as text where supplied; formatting and illustrations may be lost. A missing section does not mean a risk is absent. This reference has not been independently reviewed by a clinician and is not a live safety-alert service.
Source retrieved 2026-10-02. Read the source policy.