the most widely used psychoactive drug in the world is
For other uses, see Drug (disambiguation). Caffeine, contained in coffee and other beverages, is the most widely used psychoactive drug in the world. 90% of North American adults consume the substance on a daily basis. Uncoated aspirin tablets, consisting of about 90% acetylsalicylic acid, along with a minor amount of inert fillers and binders.