Important: This page is general information, not medical advice. It does not recommend or prescribe any treatment. Always consult your doctor or pharmacist before starting, stopping or changing any medicine.
Quick facts
- Drug class
- Polyene Antifungal [EPC]
- How it is given
- topical
- Type
- human prescription drug
- Brand names
- Nyamyc
- RxNorm ID
- 584414
We do not publish dosing. How much of this medicine to take, how often, and for how long depends on your age, weight, kidney and liver function, other conditions and other medicines. That is a decision for the person who prescribes or dispenses it. Follow the directions on your own pack and ask your pharmacist if anything is unclear.
What it is used to treat
INDICATIONS AND USAGE Nyamyc® (Nystatin Topical Powder, USP) is indicated in the treatment of cutaneous or mucocutaneous mycotic infections caused by Candida albicans and other susceptible Candida species. Nyamyc® (Nystatin Topical Powder, USP) is not indicated for systemic, oral, intravaginal or ophthalmic use.
About this medicine
DESCRIPTION Nystatin is a polyene antifungal antibiotic obtained from Streptomyces nursei. Nyamyc® (Nystatin Topical Powder, USP) is for dermatologic use. Nyamyc® (Nystatin Topical Powder, USP) contains 100,000 USP nystatin units per gram dispersed in talc. Chemical Structure
Who should not take it
CONTRAINDICATIONS Nyamyc® (Nystatin Topical Powder, USP) is contraindicated in patients with a history of hypersensitivity to any of its components.
Reported side effects
ADVERSE REACTIONS The frequency of adverse events reported in patients using nystatin topical preparations is less than 0.1%. The more common events that were reported include allergic reactions, burning, itching, rash, eczema, and pain on application. [see PRECAUTIONS: General ].
Storing it safely
STORAGE Nyamyc® (Nystatin Topical Powder, USP) Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [See USP Controlled Room Temperature]. Avoid excessive heat (40°C/104°F). Keep tightly closed. Keep out of reach of children. Nyamyc is a registered trademark of Upsher-Smith Laboratories, LLC.
Before you take anything new
Tell your pharmacist or doctor about every medicine you take — including ones bought without a prescription, herbal products and supplements. Interactions are one of the most common avoidable causes of harm from medicines, and a pharmacist can check your full list in a couple of minutes.
This page is built from the openFDA record of the U.S. Food and Drug Administration's approved labelling for this product, effective 9 July 2025. Label text has been shortened and reformatted for readability; safety wording has not been altered in meaning. FDA labelling describes products approved in the United States — brand names, strengths, formulations and approved uses may differ in your country. Always read the leaflet that comes with your own pack. PocketsInfo is not affiliated with, and is not endorsed by, the FDA. Retrieved 2026-07-30.