Civil War field medicine created many veterans addicted to this class of drug that includes morphine
AU: Controlled (S8)  CA: Schedule I  UK: Class A; US: Schedule 
II ... Opium is mentioned in the most important medical texts of the ancient world, 
... the American Civil War before giving way to morphine and its successors,... [DOC] [TLE] Heroin - Wikipedia [PAR] Heroin, also known as diamorphine among other names, is an opioid typically 
used as a recreational drug for its euphoric effects.