[xzins]

Revelation 9:21 Neither repented they of their murders, nor of their sorceries, nor of their fornication, nor of their thefts.

In the above verse the Greek for sorceries is pharmakov, from which we get pharmacy. Sorcery was the use of mind altering drugs for non-medicinal purposes.

This was pretty evident in the campish, late 60's "Tales of Don Juan" a story of a Yaqui Indian sorcerer written by Carlos Castenada.

[varyouga]

Sorcery is obviously referred to in the context of mediums, necromancers, false prophets, magicians, etc. People who misuse the tools He gave us for lies and personal gain. http://www.openbible.info/topics/sorcery

I'm referring to using natural plants for therapeutic and legitimate research purposes that benefit all mankind.

You honestly believe God intended us to not even touch these plants for any purpose? Even poison oak, poison ivy and stinging nettle have proven to be valuable.