Propecia vs. Rogaine

See how Propecia and Rogaine compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Propecia is a daily pill that blocks the hormone behind hair loss, while Rogaine is a topical solution or foam that stimulates regrowth directly at the scalp.

  • Propecia is approved only for men, but Rogaine has versions approved for both men and women.

  • Some people use both together, since they work through different mechanisms and are not interchangeable.

Propecia vs. Rogaine Drug Summary

Propecia

Propecia is a 5-alpha-reductase inhibitor that treats male pattern hair loss by lowering the hormone that shrinks hair follicles. It comes as an oral tablet taken once a day and is approved only for men.

Rogaine

Rogaine is a topical vasodilator that helps regrow hair by improving blood flow to hair follicles on the scalp. It is applied directly to the scalp as a liquid solution or foam and is approved for both men and women.

Propecia vs. Rogaine Side Effects

Propecia

Most common
decreased libido (up to 1.8%)
erectile dysfunction (up to 1.3%)
decreased ejaculate volume (up to 1.2%)
ejaculation disorder (≥1%)

Rogaine

Most common
hypertrichosis (up to 20%)
contact dermatitis (5-7%)
redness at application site (up to 5%)
dizziness (up to 1%)

Propecia vs. Rogaine Dosage

Propecia

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 1 mg once daily At the start
Maximum dose 1 mg once daily Same as starting
Dose changes None Fixed dose

Rogaine

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 1 mL twice daily At the start
Maximum dose half capful once daily If needed
Dose changes 1 increase As tolerated

Propecia vs. Rogaine Indications

Propecia

Propecia is FDA-approved to treat male pattern hair loss, also called androgenetic alopecia, in men only. It works by lowering levels of a hormone that shrinks hair follicles over time, which can slow further thinning and, in some cases, regrow hair.

  • Approved only for men with male pattern hair loss

  • Taken as a daily 1 mg tablet

  • Not approved for women or children

  • Works on the hormonal cause of hair thinning

Rogaine

Rogaine is FDA-approved to regrow hair on the top of the scalp in men with hereditary hair loss and in women with female pattern hair loss. It is applied directly to thinning areas and is also used off-label for beard or eyebrow growth and some cases of alopecia areata.

  • Approved for both men and women

  • Targets hair regrowth at the vertex or top of scalp

  • Applied as a liquid solution or foam

  • Off-label uses include beard and eyebrow growth

Propecia vs. Rogaine Pros and Cons

Propecia

Propecia works from the inside by targeting the hormone responsible for pattern hair loss, which makes it convenient but requires a prescription. Its main tradeoffs are sexual side effects in a small percentage of users and a higher out-of-pocket cost than over-the-counter options.

Pros

  • Simple once-daily pill, no scalp application needed

  • Treats the underlying hormonal cause of hair loss

  • Long track record since 1997 approval

  • May slow hair loss progression, not just regrow existing hair

Cons

  • Requires a prescription

  • Not approved for women

  • Carries risk of sexual side effects like decreased libido and erectile dysfunction

  • Roughly $100 to $250 per month without insurance, before savings programs

Rogaine

Rogaine works locally at the scalp to stimulate regrowth, which avoids systemic hormonal effects but requires consistent daily application. It is available over the counter and costs less, though it can cause local skin irritation and unwanted hair growth elsewhere.

Pros

  • Available over the counter, no prescription needed

  • Approved for use in both men and women

  • No systemic hormonal side effects

  • Roughly $15 to $50 per month without insurance, before savings programs

Cons

  • Requires twice-daily application for the solution

  • Can cause scalp irritation or contact dermatitis

  • May cause unwanted facial or body hair growth

  • Hair loss often resumes if application stops

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