dextromethorphan

Dextromethorphan is a noncompetitive NMDA receptor antagonist and sigma-1 agonist that was approved by the FDA in 1958 for use as a cough suppressant.

Dextromethorphan-d3 is a deuterated compound of Dextromethorphan.

Dextromethorphan-d3 HBr is a deuterated compound of Dextromethorphan HBr. Dextromethorphan HBr has a CAS number of 125-69-9.

Dextrorphan-d3 Tartrate is a deuterated compound of Dextrorphan Tartrate. Dextrorphan Tartrate has a CAS number of 77-07-6. Dextrorphan D-tartrate is a noncompetitive NMDA glutamate receptor antagonist.

Dextrallorphan (DXA) is an chemical of the morphinan class that is used in scientific research. It acts as a σ1 receptor agonist and NMDA receptor antagonist. It has no significant affinity for the σ2, μ-opioid, or δ-opioid receptor, or for the serotonin or norepinephrine transporter. As an NMDA receptor antagonist, in vivo, it is approximately twice as potent as dextromethorphan, and five-fold less potent than dextrorphan. Dextrallorphan was found to have a half maximal inhibitory concentration (IC50) for binding to the pituitary and brain receptor of 10,000 ± 1000 nM and 10,000 ± 1500 nM, respectively. While its stereoisomer, levallorphan, had a 10,000 times more potent dose, thus proving that binding to these receptors is stereospecific.