Finasteride (Propecia) missed dose: what to do
Finasteride (Propecia) · finasteride · by Multiple (Merck originated as Propecia)
Reviewed by the WeighedHealth Editorial Team against primary clinical sources — FDA labeling, peer-reviewed trials, and specialty-society guidelines.
Content current as of June 2026; updated when guidance or availability changes.
Finasteride is dosed daily. If missed: skip the dose if more than 12 hours late, take it next day at usual time. Do not double up. Missing occasional doses doesn't significantly affect long-term efficacy, but consistency matters for sustained DHT suppression — set a daily reminder.
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People also ask
Frequently asked
What if I miss a Finasteride (Propecia) dose?+
Finasteride is dosed daily. If missed: skip the dose if more than 12 hours late, take it next day at usual time. Do not double up. Missing occasional doses doesn't significantly affect long-term efficacy, but consistency matters for sustained DHT suppression — set a daily reminder.
Should I double the next dose to make up?+
Never. Doubling significantly increases GI side effects. Skip and resume regular schedule instead.