I switched a few months ago,been on propecia for 9 years and started losing it effects on my crown. I saw Dr. Bernstein and he recommend i started talking proscar every other day, so i am increasing my dosage to 2.5 mg a day . So at this point i am just trying to slow further loss. I really beleive these drugs just slow down the loss,eventually you will lose what you have if it was programmed in your genes unless one day they come up with something better but at this point its the best we have .