Nystatin Ointment

Nystatin is a prescription medicine approved for the treatment of various fungal infections, including thrush, diaper rash, and yeast infections. The medication is available in a number of different forms and strengths, including:
  • Cream -- 100,000 units per gram
  • Ointment -- 100,000 units per gram
  • Powder (for skin use) -- 100,000 units per gram
  • Vaginal tablets -- 100,000 units per tablet
  • Oral suspension -- 100,000 units per mL
  • Oral tablets -- 500,000 units per tablet.
This antifungal drug is not significantly absorbed into the bloodstream and is, therefore, only effective for fungal infections that occur on the surface of the body (which can be treated with ointments, creams, or powders) or in the digestive tract (which can be treated with oral forms of nystatin).
Although most people tolerate this medication well, side effects are possible. Skin irritation has been reported with the cream, powder, and ointment form of nystatin. People taking the oral products have also reported nausea, diarrhea, and vomiting.
(Click Nystatin for more information on how to use various nystatin products, to find out exactly how this medication works, and to learn about the warnings associated with this drug.)
Last reviewed by: Kristi Monson, PharmD
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