What is nystatin?

Nystatin is an oral anti-fungal medication.

Why is nystatin used?

  • Nystatin oral tablets and capsules are used for treating intestinal candidiasis.

Is nystatin available as a generic drug?


Do I need a prescription for nystatin?


What brand names are available for nystatin?

There are no brand names for nystatin available in the US.

What are the side effects of nystatin?

Common side effects of nystatin tablets and capsules include:

Other side effects of nystatin include:

Possible serious side effects of nystatin include:

  • Stevens-Johnson syndrome

What is the dosage for nystatin?

  • The recommended dose for treating intestinal candidiasis is 500,000 to 1,000,000 units (1 to 2 tablets) every 8 hours.

Which drugs or supplements interact with nystatin?

  • There are no significant drug interactions with nystatin oral tablets and capsules.

Is nystatin safe to use during pregnancy or while breastfeeding?

  • There are no adequate studies done with nystatin to determine safe and effective use in pregnant women.
  • It is not known whether nystatin enters breast milk; therefore, it is best for nursing mothers to be cautious before breastfeeding.

What else should I know about nystatin?

What preparations of nystatin are available?
  • Tablets: 500,000 units
  • Capsule: 500,000 units , 1,000,000 units
How should I keep nystatin stored?
  • Nystatin oral tablets and capsules should be stored at room temperature, 20 C to 25 C (68 F to 77 F)
How does nystatin work?
  • Nystatin works by binding to sterols in the walls of fungal cells, disturbing the function of the cell wall. The fungal cells eventually lose their contents, leading to their death and improvement of the fungal infection.
When was nystatin approved by the FDA?
  • The FDA approved Nystatin tablets in September 1964.


Eczema Browse our medical image collection of allergic skin disorders such as psoriasis and dermatitis and more caused by allergies See Images


Nystatin oral tablets and capsules are prescribed to treat a fungal infection called "intestinal candidiasis." Side effects include:

Drug interactions, storage, dosing, and pregnancy and breastfeeding information should be reviewed prior to using any medication.

Treatment & Diagnosis

Medications & Supplements

Health Solutions From Our Sponsors

FDA Logo

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Medically reviewed by John P. Cunha, DO, FACOEP; Board Certified Emergency Medicine


FDA Prescribing Information