Nystatin

Nystatin is used to treat fungal infections of the mouth or intestines. Nystatin is an antifungal that works by stopping the growth of fungus.

• Nystatin powder for suspension should not be used to treat fungal infections of the blood.
• Nystatin is available under the following different brand names: Mycostatin, Nilstat, Nyamyc, Nystat Rx, Nystatin Systemic, Nystex, and Nystop.

Dosage Forms and Strengths

Oral powder

• 100,000units/g

Oral suspension

• 100,000units/mL

Oral tablet

• 500,000units

Capsule

• 500,000units
• 1,000,000units

Dosing Considerations – Should be Given as Follows:

Oropharyngeal Candidiasis

• Adult: Oral suspension: 400,000-600,000 units orally every 6 hours; swish in mouth several minutes and then swallow
• Premature infants: 100,000 units orally every 6 hours; paint suspension into recesses of the mouth
• Infants: 200,000 units orally every 6 hours (100,000 units in each side of mouth); paint suspension into recesses of the mouth
• Children: Oral suspension: 400,000-600,000 units orally every 6 hours; swish in mouth several minutes and then swallow

Intestinal Candidiasis

Adult and Pediatric

• Oral tablets: 500,000-1,000,000 units every 8 hours
• Powder: 1/8 to 1/4 teaspoonful in 1/2 cup of water (500,000-1,000,000 units) orally every 8 hours

Administration

• Retain suspension in the mouth as long as possible before swallowing

Common Side effects of Nystatin include:

• Diarrhea
• Nausea
• Stomach pain or upset
• Vomiting
• Contact dermatitis
• Stevens-Johnson syndrome
• Hypersensitivity reactions
• Skin irritation or redness
• Mouth irritation
• Rash
• Hives
• Allergic reaction
• Slow heart rate
• Bronchospasm
• Facial swelling
• Muscle pain

This document does not contain all possible side effects and others may occur. Check with your physician for additional information about side effects.

If your doctor has directed you to use this medication, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor, health care provider, or pharmacist first.

• Severe Interactions of nystatin include:
  • allogeneic cultured keratinocytes/fibroblasts in bovine collagen
• Nystatin has no known serious, moderate, or mild interactions with other drugs.

This information does not contain all possible interactions or adverse effects. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share this information with your doctor and pharmacist. Check with your health care professional or doctor for additional medical advice, or if you have health questions, concerns, or for more information about this medicine.

Warnings

• This medication contains nystatin. Do not take Mycostatin, Nilstat, Nyamyc, Nystat Rx, Nystatin Systemic, Nystex, or Nystop if you are allergic to nystatin or any ingredients contained in this drug
• Keep out of reach of children
• In case of overdose, get medical help or contact a Poison Control Center immediately

Contraindications

• Hypersensitivity

Effects of Drug Abuse

• No information available

Short-Term Effects

• See "What Are Side Effects Associated with Using Nystatin?"

Long-Term Effects

• See "What Are Side Effects Associated with Using Nystatin?"

Cautions

• Not for use in systemic mycoses
• Discontinue therapy if irritation or sensitization observed during use

Pregnancy and Lactation

• Use nystatin with caution during pregnancy if benefits outweigh risks
• Animal studies show risk and human studies are not available or neither animal nor human studies were done
• It is not known if nystatin is excreted in breast milk; use caution if breastfeeding