Codeine is an opiate drug used for its antitussive, analgestic and anti-diarrhea properties. This drug is one of the more mild forms of opium and is used for treating things such as mild to moderate pain, diarrhea, and cough. This drug is sold on its own or mixed with other drugs to make things such as Tylenol 3 (Tylenol with codeine). Codeine can be bought...