Drugs and Supplements

Over the Counter (OTC)

Selenium Sulfide

Selenium Sulfide

se-LEE-nee-um SUL-fide

Indications for Use

Treats dandruff, fungus infections of the skin (tinea versicolor), and seborrhea of the scalp.

Brand Name(s)

  • Selseb
  • Dandrex
  • Selsun Blue Medicated Treatment
  • Rite Aid Dandruff
  • There may be other brand names for this medicine.

    When You Should Not Take the Medication

    You should not use this medicine if you have ever had an allergic reaction to selenium sulfide.

    How to Use this Medicine

    Shampoo, Liquid

    Your doctor will tell you how much to use and how often. Use this medicine exactly as your doctor ordered.

    If you are using this medicine without a prescription, follow the instructions on the medicine label.

    Use this medicine on the skin or scalp only.

    Keep the medicine away from your eyes. If you do get some in your eyes, rinse them with water.

    Shake the bottle well before use. Take off any jewelry before you use this medicine.

    To treat a skin infection, apply to the affected areas and lather. Allow the lather to stay on your skin for 10 minutes. Rinse thoroughly.

    To treat seborrhea or dandruff, put a small amount in your hair and lather. Wait 2 to 3 minutes before rinsing thoroughly. Repeat the application and rinse thoroughly.

    Wash your hands well after applying selenium sulfide.

    If a Dose is Missed


    Apply the missed dose as soon as possible.

    If it is almost time for your next treatment, wait until then to use the medicine and skip the missed application.

    Do not apply twice as much medicine at one time.

    How to Store and Dispose of this Medicine


    Keep this medicine in its original tightly closed container, away from heat or direct light. Do not freeze.

    Keep all medicine out of the reach of children.

    Drugs and Foods to Avoid

    Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

    Warnings While Using this Medicine


    If you are pregnant or breastfeeding, talk to your doctor before using selenium sulfide.

    Possible Side Effects While Using this Medicine



    If you notice these less serious side effects, talk with your doctor:
    Oily or dry hair or scalp
    Change in hair color
    Hair loss
    Skin irritation

    If you notice other side effects that you think are caused by this medicine, tell your doctor.