Explanatory notes
… straw; buprenorphine (INN), codeine, dihydrocodeine (INN), ethylmorphine, etorphine (INN), heroin, hydrocodone (INN), … used as a sedative in place of codeine and morphine. (4) Ethylmorphine , crystalline white powder, odourless; used … externally as a local anaesthetic. (5) Codeine (methylmorphine, monomethyl ether of morphine). Present in …