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Antifungals

Nystatin

Also sold as: Mycostatin, Nilstat

No prescription neededAntifungals
Comes as:SuspensionTabletCreamVaginal pessary

Usual adult dose

Mouth thrush: 100000 units (1 ml) four times a day after food, held in the mouth before swallowing, for 7 days and 2 days after it clears. Babies with thrush often get the same 1 ml dose. Children: ask your doctor or pharmacist.

Your doctor may give you a different dose. Children's doses depend on weight.

Side effects

Common

  • nausea
  • diarrhoea at high doses
  • mild mouth irritation

Serious — get help

Stop taking it and see a doctor straight away if you notice:

  • severe allergic reaction (rare)

Do not take it, or take care, if

  • Known allergy to nystatin
  • Thrush that keeps coming back (see a doctor)

Interactions

No important interactions are listed in our database. Still tell your doctor or pharmacist everything you take.

Pregnancy

  1. A
  2. B
  3. C
  4. D
  5. X

Category C

A risk to the baby cannot be ruled out. Use only if your doctor says the benefit is greater than the risk.

Generic alternatives

Similar medicines your doctor or pharmacist may offer instead.

  • MiconazoleNo prescription needed
  • ClotrimazoleNo prescription needed
  • Fluconazole
Check with my other medicines

Always follow your doctor or pharmacistThis page is general information, not a prescription. Do not start, stop or change a medicine on your own.