Finasteride, applied to the scalp
Finasteride delivered onto the scalp rather than swallowed. Some of it is still absorbed, so the systemic cautions for the tablet apply.
Not for
- Women. Finasteride is not indicated for use in women, and it is not approved for women of any age.
- Children.
- Anyone who has had an allergic reaction to finasteride or dutasteride.
Handling
- A woman who is pregnant or may become pregnant must not handle this product or come into contact with it on your skin, hair or pillow. Finasteride can affect the development of the external genitalia in a male fetus.
- Wash your hands after applying, and let the scalp dry fully before it touches anyone or anything.
Common effects
- Itching, dryness, flaking or redness where it is applied.
- The systemic effects reported for the tablet, including reduced sex drive and difficulty getting or keeping an erection, have also been reported with topical use.
Serious effects
- Sexual side effects that continue after stopping have been reported after marketing.
- Depression and, in reports, thoughts of self-harm.
- Allergic reactions, including rash, hives, itching, and swelling of the lips, tongue, face or throat.
Get medical help if
- Swelling of the lips, tongue, face or throat, or trouble breathing or swallowing.
- A change in mood, or thoughts of harming yourself.
- A lump, pain, or discharge in the breast.
Tell your provider
- Finasteride lowers the PSA reading used in prostate screening. Tell anyone ordering a PSA test that you use it.
- Anyone in your household who is pregnant or may become pregnant, so a provider can weigh the transfer risk with you.
Sources
- Finasteride 1 mg tablets, FDA prescribing information. US Food and Drug Administration. FDA-approved labeling, DailyMed
- Finasteride 1 mg tablets, FDA prescribing information, warnings and precautions. US Food and Drug Administration. FDA-approved labeling, DailyMed
- Finasteride 1 mg tablets, FDA prescribing information, clinical pharmacology. US Food and Drug Administration. FDA-approved labeling, DailyMed