If you, like many of us, have encountered a doctor who insists that Propecia is 100 percent safe and effective for (all together now) its intended use, you can always check to see if he or she is on the take.
Pro Publica has an excellent database of just such doctors:
propublica.org/series/dollars-for-docs
And if anyone does turn up a shady doc, be sure to post the Pro Publica link here for all to see (and be aware of).