Q: I have heard that you should take Propecia for 6 to 12 months following a hair transplant. Is this correct?

A: I would only use Propecia if you plan to continue the medication long-term.

That said, Propecia — the brand name of the hair loss drug finasteride — is very helpful in preventing further hair loss. I do recommend that patients who have hair loss stay on the medicine for an extended period, regardless of whether or not they decide to have a hair transplant.