racemic mixture racemethorphan along with levomethorphan, the latter of which has similar properties to those of levorphanol. Society and culture Name Levorphanol is the INN, BAN, and DCF. As the medically used tartrate salt, the drug is also known as levorphanol tartrate (USAN, BANM). The former developmental code name of levorphanol at Roche was Ro 1-5431. Availability As the tartrate salt, levorphanol is marketed by Sentynl Therapeutics and Virtus Pharmaceuticals in the U.S., and Canada under the brand name Levo-Dromoran. Legality Levorphanol is listed under the Single Convention On Narcotic Drugs 1961 and is regulated like morphine in most countries. In the U.S., it is a Schedule II Narcotic controlled substance with a DEA ACSCN of 9220 and 2013 annual aggregate manufacturing quota of 4.5 kilos. The salts in use are the tartrate (free base conversion ratio 0.58) and hydrobromide (0.76). See also Cough syrup Racemorphan; Dextrorphan; Noscapine Codeine; Pholcodine Dextromethorphan; Dimemorfan Butamirate Pentoxyverine Tipepidine Cloperastine; Levocloperastine References Delta-opioid receptor agonists Dissociative drugs Enantiopure drugs Euphoriants GABA receptor antagonists German inventions Glycine receptor antagonists Kappa-opioid receptor agonists Morphinans Mu-opioid receptor agonists NMDA receptor antagonists Nociceptin receptor agonists Phenols Serotonin–norepinephrine reuptake inhibitors Synthetic opioids