How Long Should I Take Propecia Before Transplant to Prevent Shock Loss?

Dear Dr Rassman,
I have been reading your blog for quitesome time and have benefitted a lot from it. I have leant from you that propecia is helful in preventing shockloss. I’m planning on a HT session say like in a month. Would it help me in countering shock loss if I started using propecia today?…or should I be on propecia for a specific period of time say like 6 month, before I go for a Transplant.?

If you have been evaluated by a doctor and have a diagnosis of male pattern hair loss, Propecia may benefit and prevent or reverse the hair loss. Propecia may also prevent shock loss from a hair transplant and I generally recommend that it is best to take it one month in advance of the surgery if possible. Certainly, being on it as early as possible is best, but even the day of surgery will work better than none at all. The enzyme that makes DHT is at work all of the time and blood levels of Propecia are achieved in an hour or two, so hopefully some value should be there even if first taken the same day of the transplant surgery for the prevention of the transplant shock you asked about.