Effect of levallorphan and nalorphine upon barbiturate-induced respiratory depression in rats.
D000818:Animals; D001463:Barbiturates / Q000494:pharmacology*; D019069:Cell Respiration; D007977:Levallorphan; D009022:Morphine Derivatives; D009269:Nalorphine / Q000494:pharmacology*; D051381:Rats; D012119:Respiration / Q000187:drug effects*; D012131:Respiratory Insufficiency
D001463:Barbiturates; D009022:Morphine Derivatives; D007977:Levallorphan; D009269:Nalorphine; C032232:barbituric acid
BARBITURATES/effects; MORPHINE/derivatives; NALORPHINE/effects; RESPIRATION/effect of drugs on