First of all: Materia medica (English: medical material/substance) is a Latin medical term for the body of collected knowledge about the therapeutic properties of any substance used for healing (i.e., medicines)
Know to the point. I hope this post is not inapropriate in any way or breaking the rules. It is about the plant Cannabis Sativa but I think that this is not about cannabis in my opinion but my point is that inhaling seems to be an ancient route of adminstrating drugs in India. Anyway its not only native americans who used this method in ancient times and herbs including cannabis could have have been inhaled through the nose. The Indo-aryans as the people were called who invade India in about 4000 years ago knew about Cannabis and probably also used snuffing. Maybe the drug "soma" mentioned in the Rig Veda were snuffed too. Anyway Cannabis is mentioned here in this text as "a good snuff for deterging the brain". So what are your thoughts on this?