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Selsun Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Selsun (selenium) is used to treat dandruff, seborrhea, and tinea versicolor (a fungus that discolors the skin). It is a topical (for the skin) antifungal medication. This medication is available in generic form. Common side effects include skin irritation, dry skin, oily or dry hair/scalp, or temporary hair loss.
To treat tinea versicolor: Apply the dose of Selsun to affected areas and lather with a small amount of water. Allow product to remain on skin for 10 minutes, then rinse thoroughly. Repeat procedure once a day for 7 days. To treat seborrheic dermatitis and dandruff: Usually two applications each week for two weeks will afford control. After this, may be used at less frequent intervals weekly, every two weeks, or every 3 or 4 weeks in some cases. Avoid using other topical medications at the same time you apply Selsun topical, unless your doctor approves. Other skin medications may affect the absorption or effectiveness of Selsun topical. Tell your doctor all medications you use. If you are using Selsun on the body for tinea versicolor, this medication should be used during pregnancy only when prescribed. It is unknown if this drug passes into breast milk. Though there have been no reports of harm to nursing infants, consult your doctor before breast-feeding.
Our Selsun (selenium) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Selsun in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using selenium sulfide and call your doctor if you have unusual or severe blistering, itching, redness, peeling, dryness, or irritation of the skin.
Read the entire detailed patient monograph for Selsun (Selenium)
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Selsun Overview - Patient Information: Side Effects
If your doctor has prescribed this medication, remember that he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Selsun (Selenium)
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Selsun FDA Prescribing Information: Side Effects
In decreasing order of severity: skin irritation; occasional reports of increase in normal hair loss; discoloration of hair (can be avoided or minimized by thorough rinsing of hair after treatment). As with other shampoos, oiliness or dryness of hair and scalp may occur.
Read the entire FDA prescribing information for Selsun (Selenium)
Additional Selsun Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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