Just wanted to caution those of you who are propecia users. If you already use propecia every day then DO NOT go down to every other day. For a new user, to start every other day is fine. But for experience user, it will increase fallout when you cut back from daily to every 2 days. I've experienced this over the past 6 weeks-- didnt have any fallout then cut back to every 2 days and started getting fallout. I dont if the body get's use to a certain level of the drug in the your system and adapts or what, but I am now back on daily propecia (6 yr user).
For new users starting every 2 days, I wouldnt see a problem-- it's coming back down that I would caution.