Nystatin

Nystatin is an antifungal medication used to treat fungal infections of the mouth, throat, and skin. It works by stopping the growth of yeast and fungi that cause infections. If you’ve been prescribed nystatin, here’s what you need to know.

What is nystatin?

Nystatin is a polyene antifungal medication that helps clear infections caused by Candida (yeast) and other fungi.

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How does nystatin work?

Nystatin damages the fungal cell membrane, preventing fungi from growing and spreading.

What is nystatin used to treat?

Nystatin is commonly prescribed for:

  • Oral thrush (fungal infection in the mouth and throat)
  • Skin and nappy rash caused by fungal infections
  • Fungal infections of the vagina or intestines (as prescribed by a doctor)

Who can take nystatin?

Nystatin is suitable for most adults, children, and infants, depending on the condition being treated.

Who might not be able to take nystatin?

Nystatin may not be suitable if you:

  • Have a history of allergic reactions to antifungal medications
  • Have a severe immune system disorder
  • Are taking other antifungal medications (check with your doctor or pharmacist)

Can I take nystatin if I’m pregnant or breastfeeding?

Nystatin is generally considered safe during pregnancy and breastfeeding, but speak to your doctor before use.

What if I miss a dose?

If you forget a dose, take it as soon as you remember. If it’s close to your next dose, skip the missed one—do not take two doses at once.

How effective is nystatin?

Nystatin is highly effective at treating fungal infections when used as directed. Symptoms usually improve within a few days, but the full course should be completed to prevent recurrence.

What should I do if I take too much?

Taking too much nystatin is unlikely to cause harm, but excessive use may cause stomach upset or irritation. If symptoms worsen, seek medical advice.

What dose of nystatin is usually taken?

  • For oral thrush: 1ml (100,000 units) four times daily, held in the mouth before swallowing
  • For skin infections: Apply a thin layer to affected areas two to four times daily
  • For vaginal infections: Dose depends on the severity and type of infection (as prescribed by a doctor)

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What are the side effects of nystatin?

Common side effects include:

  • Mild nausea or diarrhoea (especially with oral use)
  • Skin irritation or redness (with topical use)
  • Unpleasant taste

Serious side effects, such as severe allergic reactions (swelling, breathing difficulties), require urgent medical attention.

How should I take nystatin?

Nystatin is available as oral suspension (liquid), cream, ointment, lozenges, or tablets. Follow the instructions for your specific formulation.

When should nystatin be taken?

  • For oral thrush: After meals, swish the liquid around the mouth before swallowing.
  • For skin infections: Apply after cleansing the affected area.

What are the brand names for nystatin?

Nystatin is available as a generic medicine, but some branded versions include:

  • Nystan
  • Mycostatin

Final thoughts

Nystatin is an effective antifungal treatment that works best when used exactly as prescribed. Complete the full course to prevent recurrence. If symptoms persist, speak to your doctor or pharmacist.

Always consult a medical professional
This article is for informational purposes only and is not a substitute for medical advice. Always consult a healthcare professional before starting, stopping or changing any medication. If you have concerns about your medication or experience side effects, speak to your doctor or pharmacist immediately.

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