Normethadone (INN, BAN; brand names Ticarda, Cophylac, Dacartil, Eucopon, Mepidon, Noramidone, Normedon, and others), also known as desmethylmethadone or phenyldimazone, is a synthetic opioid analgesic and antitussive agent.[citation needed] Normethadone is listed under the Single Convention on Narcotic Drugs 1961 and is a Schedule I Narcotic controlled substance in the United States, with a DEA ACSCN of 9635 and an annual manufacturing quota of 2 grams. It has an effective span of action for about 14 days, and is 12 to 20 times stronger than morphine. [2] The salts in use are the hydrobromide (free base conversion ratio 0.785), hydrochloride (0.890), methyliodide (0.675), oxalate (0.766), picrate (0.563), and the 2,6-ditertbutylnapthalindisulphonate (0.480).[3]
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Trade names | Cophylac |
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Pharmacokinetic data | |
Bioavailability | 100% |
Metabolism | liver |
Elimination half-life | 14 days |
Excretion | Urine |
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ECHA InfoCard | 100.006.730 |
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Formula | C20H25NO |
Molar mass | 295.426 g·mol−1 |
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