Same drug, same side-effects. Naturally Merck would prefer to sell you Propecia at about the same cost per tablet. Thus, Proscar tablets are very small and irregularly-shaped to discourage quartering.
However, the dose-response curve for finasteride is very flat--- a little works about as well as a lot. Combine this with the fact that finasteride forms an almost unbreakable bond with type-2 5-AR. I.e., though the blood half-life is only eight hours or so, synthesis of new enzyme is required to restore activity. This takes several days. This means the amount you take in any one day is almost irrelevant, within limits. So quarter the tablets as well as you can and don't worry. On general principles, I suggest skipping treatment every 5th day more or less, so that the averaged dose is 1 mg per day.
Peter H Proctor, PhD,MD
Was curious if lifting weights causes propecia to lose its effectiveness since your body is generating more Testosterone that will and can be converted to dht?
1mg Propecia vs. 5mg Proscar
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Was curious if lifting weights causes propecia to lose its effectiveness since your body is generating more Testosterone that will and can be converted to dht?