FormACough,ToALaugh: "Dextromethorphan is the dextrorotatory enantiomer of levomethorphan, which is the methyl ether of levorphanol, both opioid analgesics. It is named according to IUPAC rules as (+)-3-methoxy-17-methyl-9α,13α,14α-morphinan." Does that answer your question? A potent metabolite ( dextrorphan) raises the cough threshold. Nothing to do with serotonin in recommended doses. Prohibited sale to minors in CA
Answered 7/1/2015
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