Morphine/dextromethorphan--Endo: E 3231, Morphidex.
D000818:Animals; D002626:Chemistry, Pharmaceutical; D002908:Chronic Disease; D003915:Dextromethorphan / Q000008:administration & dosage* / Q000009:adverse effects / Q000494:pharmacology; D004338:Drug Combinations; D015507:Drugs, Investigational / Q000008:administration & dosage* / Q000009:adverse effects / Q000494:pharmacology; D006801:Humans; D009020:Morphine / Q000008:administration & dosage* / Q000009:adverse effects / Q000494:pharmacology; D010146:Pain / Q000188:drug therapy*
D004338:Drug Combinations; D015507:Drugs, Investigational; C468112:EN 3231; D003915:Dextromethorphan; D009020:Morphine