Does anyone know of a legal source for purchasing medical grade pirenzepine to be compounded into a topical medication? So far, I have discovered it is not available in the u.s. and I think Mexico. You can get 25 mg tablets from Japan but not sure of the quality or purity. I do not want to break a law, just that at age 73, and considering reports of safety that I have nothing to lose. thanks and best to all