The decisions by the Commission on Narcotic Drugs in its 68th session last March to add N-pyrrolidino protonitazene (protonitazepyne), N-pyrrolidino metonitazene (metonitazepyne), etonitazepipne (N-piperidinyl etonitazene) and N-desethyl isotonitazene (norisotonitazene) to Schedule I of the Single Convention on Narcotic Drugs of 1961, has come into force.


