That's true when you isolate the active ingredient from a natural plant and extract it from the whole that is a drug. Drugs are highly addictive and destructive by scientific design. Proper use of natural healing plants has been a part of my culture since the ancient days, for example, if you stop smoking cannabis for two weeks and you will be able to break away without major withdraws. try that with a dangerous drug like Heroine and the withdraws are painful and self-destructive.