You know I never really thought about it as idol worship, but in my heart I know it is wrong and a sin to take drugs as it is to drink alcohol. There are many sins that we need to see in our hearts as being wrong and to avoid them, and repent of them.
About idol worship, I know in my heart that TV's and sports are idol worship. Most do not think of this as being idol worship. How many families sit in front of the television hour after hour, watching, worshiping, idolizing actors, sports figures and not turning to the word of God? This is a large part of why our world is going downhill and morals are disappearing. In our church- a very large congregation--we do not believe in tv's. We don't have them in our homes and refuse to allow the devil in our living room. I can elaborate more later with Bible quotes that will show this as evil.