Package insert / product label
Dosage form: oral suspension
Drug classes: Mouth and throat products, Polyenes

Medically reviewed by Drugs.com. Last updated on Nov 1, 2022.

Rx Only

Nystatin Oral Suspension Description

Nystatin is an antimycotic polyene antibiotic obtained from Streptomyces noursei. Structural formula:

Nystatin Oral Suspension USP, for oral administration, contains 100,000 USP Nystatin Units per mL. Inactive ingredients: alcohol (≤ 1% v/v), artificial peppermint flavor, cherry flavor, citric acid, D&C Yellow No. 10, FD&C Red No. 40, glycerin, magnesium aluminum silicate, methylparaben, potassium phosphate dibasic, propylene glycol, propylparaben, purified water and sucrose.

Nystatin Oral Suspension - 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 of 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.

Indications and Usage for Nystatin Oral Suspension

Nystatin Oral Suspension is indicated for the treatment of candidiasis in the oral cavity.

Contraindications

The preparation is contraindicated in patients with a history of hypersensitivity to any of its 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.

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.

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.

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).

Nystatin Oral Suspension 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: Limited 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.

How is Nystatin Oral Suspension Supplied

Nystatin Oral Suspension USP, 100,000 USP Nystatin Units per mL, is available in a cherry, peppermint flavored, light creamy yellow, ready-to-use suspension, supplied in the following oral dosage forms:

NDC 0904-7276-41: 5 mL unit dose cup
NDC 0904-7276-92: Case contains 50 unit dose cups of 5 mL, packaged in 5 trays of 10 unit dose cups each
NDC 0904-7276-70: Case contains 100 unit dose cups of 5 mL, packaged in 10 trays of 10 unit dose cups each

Storage

Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature]. Avoid freezing.

Distributed by:
MAJOR ® PHARMACEUTICALS
Indianapolis, IN 46268

R06/22

PRINCIPAL DISPLAY PANEL - 5 mL Cup Label

Major ®

NDC 0904-7276-41

Nystatin
Oral Suspension, USP

500,000 units / 5 mL

Alcohol ≤ 1% v/v SHAKE WELL

Delivers 5 mL ∙ See insert
For Institutional Use Only ∙ Rx Only

MAJOR ® PHARMACEUTICALS
Indianapolis, IN 46268

A0868C050622

Frequently asked questions

• Can triamcinolone acetonide B be used to treat severe diaper rash on a little girl?

Medical Disclaimer