dextromethorphan

dextromethorphan

drug
      synthetic drug related to morphine and used in medicine as a cough suppressant. The hydrobromide salt of dextromethorphan occurs as white crystals or a white crystalline powder, soluble in water, alcohol, and chloroform. It acts upon the central nervous system (nervous system, human) to suppress the cough reflex. The drug does not produce addiction or central depression, as do a number of other morphine derivatives, and it has no analgesic effect. For this reason it is commonly prepared in therapeutic doses in nonprescription cough syrups and tablets.

      Dextromethorphan is also used as a recreational drug. When taken in large doses, the drug, referred to as DXM, can alter sensory perception and induce hallucination. Prolonged abuse has caused impairment of memory and other mental functions, and large doses taken in conjunction with antidepressants and other drugs have caused death by respiratory and cardiac distress.

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Universalium. 2010.

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  • dextromethorphan — noun Etymology: dextr + methyl + morphinan parent substance of morphine alkaloids, from morphine + 3 an Date: 1967 a nonaddictive cough suppressant C18H25NO that is widely used especially in the form of its hydrobromide …   New Collegiate Dictionary

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  • dextromethorphan — dex·tro·me·thor·phan .dek strō mi thȯr .fan n a nonaddictive cough suppressant that is widely used esp. in the form of its hydrobromide C18H25NO·HBr in over the counter cough and cold preparations and is a codeine analog of levorphanol lacking… …   Medical dictionary

  • dextromethorphan — dex·tro·me·thor·phan …   English syllables

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