To brianrupnow: You do not have to be rude. Not everyone can know everything. I am a good mechanic, a graphic artist, a computer technician, I hold a Master in Philosophy, and I have a smattering of knowledge in phamacology.
Can you give me the criteria for identifying a class III drugs and what differentiates them from class II?

Let's say you are a car guy, can to tell me everything about every car and related technology in the world? Can you explain to me how the microprocessor for the first generation of OBD computers was developed? I doubt it.

Give me one good reason you find a need to insult me.

What could I have done to you to have possibly affected your life in such a way that you would feel you have to be hostile toward me?

Didn't your mother ever teach you that if you can not say something nice, say nothing at all?