ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.
Overview
It slows yeast growth on the skin.
What it's used for
- Dandruff and seborrheic dermatitis
- Tinea versicolor
How to take it
- Lather, leave on 2 to 3 minutes (or as directed), then rinse.
- For tinea versicolor, apply to skin for 10 minutes daily for a week, then rinse.
Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.
Side effects
Common side effects
- Oily or dry scalp
- Hair color changes
- Irritation
Call 911Swelling of the face, lips, or throat, hives, or trouble breathing
Warnings
- Rinse well; it can discolor light or chemically treated hair.
- Keep out of eyes.
Other medicines, foods, and alcohol
- None.
Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.
Pregnancy and breastfeeding
Ask your provider.
Missed doses, overdose, and storage
If you miss a dose
Apply it when you remember, then go back to your usual schedule. Don't apply extra to make up for it.
If someone takes too much
Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.
Storing it
Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.
Conditions it's used for
Sources
- DailyMed: FDA drug label for Selenium sulfide (U.S. National Library of Medicine)
- MedlinePlus: Drugs, herbs, and supplements
- FDA: Drugs@FDA
Last updated 2026-11-13.