_:b666670 . "42490"^^ . "C0350422"^^ . _:b666671 . _:b666671 . . "C18H25NO.BrH.H2O"^^ . . "Dextromethorphan"^^ . "The hydrobromide salt form of dextromethorphan, a synthetic, methylated dextrorotary analogue of levorphanol, a substance related to codeine and a non-opioid derivate of morphine. Dextromethorphan exhibits antitussive activity and is devoid of analgesic or addictive property. This agent crosses the blood-brain-barrier and activates sigma opioid receptors on the cough center in the central nervous system, thereby suppressing the cough reflex.NCI" . "Dextromethorphan HydrobromidePTNCI" . . "42490"^^ . . _:b666671 . . "Dextromethorphan Hydrobromide"^^ . _:b666670 . _:b666672 . "34521"^^ . _:b666671 . _:b666670 . _:b666670 . _:b666673 . "Organic Chemical"^^ . _:b666672 . "DEXTROMETHORPHAN HYDROBROMIDEPTFDA9D2RTI9KYH" . _:b666673 . . _:b666672 . "C423"^^ . _:b666673 . "FDA"^^ . "6700-34-1"^^ . . "Pharmacologic Substance"^^ . _:b666673 . "Dextromethorphan Hydrobromide"^^ . _:b666672 . "9D2RTI9KYH"^^ . .