The ethers, esters and enantiomeres of the above mentioned substances, with exception of dextromethorphan ( INN ) as enantiomere of levomethorphan and racemethorphan, and with exception of dextrorphanol ( INN ) as enantiomere of levorphanol and racemorphan;
2.
Racemorphan itself is under international control per the Single Convention on Narcotic Drugs 1961 and is therefore listed as a Schedule II Narcotic controlled substance in the US Controlled Substances Act 1970; it has an ACSCN of 9733 and in 2014 it had an aggregate annual manufacturing quota of zero.
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