A(n) ____________ is a chemical substance used to treat, prevent, or diagnose a disease or alter one or more functions of the body. A) antibiotic B) analgesic C) drug D) antihistamine.
A drug is a chemical substance used to treat, prevent, or diagnose a disease or alter one or more functions of the body. Antibiotics, Analgesics, and antihistamine are all not able to do all of the following.
