Really, why? This clinic has nothing to gain from advising against it. He reccomended finasteride but not Regaine. If he has absolutely nothing to gain (because the correspondnce was free) why should I steer clear of him?
In this industry there does seem to be different opinions expressed by different doctors. For example I have had one experienced surgeon reccomend FUT when everybody else said FUE, one professional estimate that I'd need 1,800 grafts when another estimated that I could need up to 3,500 grafts, and now one professional suggesting that Regaine might not be a great prodcut while so many other surgeons seem to differ.
There does seem to be some uncertainty here.