Dextromethorphan danger.
D000328:Adult; D000996:Antitussive Agents / Q000009:adverse effects; D002675:Child, Preschool; D003915:Dextromethorphan / Q000009:adverse effects*; D006801:Humans; D007981:Levorphanol / Q000031:analogs & derivatives*; D008297:Male
D000996:Antitussive Agents; D007981:Levorphanol; D003915:Dextromethorphan