Guys the definition of a drug is really diverse. Is chocolate a drug? There are people who are genuinely addicted to it to the point where withdrawl symptoms are had in the "drugs" absense. The combination of sugars and fats are dangerously alluring.
Consider reading from Chocolate to Morphine. It's a fantastic ent book written by Andrew Weil, who had a quote from that book on the front page of /r/trees just a few days ago.
Every Ent should read this book check it!.