A '''drug''' is a chemical substance that affects the processes of the mind or body. The term "drug" may be used to refer to, beneficial [[medicine]] (such as [[antibiotics]] and painkillers like [[morphine]]) or certain other legal chemicals such as [[alcohol]], [[caffeine]], or [[nicotine]] but may also refer to [[illegal drugs]]. | A '''drug''' is a chemical substance that affects the processes of the mind or body. The term "drug" may be used to refer to, beneficial [[medicine]] (such as [[antibiotics]] and painkillers like [[morphine]]) or certain other legal chemicals such as [[alcohol]], [[caffeine]], or [[nicotine]] but may also refer to [[illegal drugs]]. |