There is a difference between drugs and medicines. A drug refers to any substance that alters the body or mind when consumed, and can be used for medical, spiritual or recreational purposes. Medicine specifically refers to treatments used to cure or prevent illness and disease. While all medicines are drugs, not all drugs are medicines. A drug is the raw ingredient, while medicine involves manufacturing drugs into a finished product for treating or preventing disease. Common drugs include alcohol, marijuana, cocaine and synthetic drugs, while common medicines fall into categories like antibiotics, pain relievers, and over-the-counter analgesics.