The effects of nisentil HCl (alpha-prodine HCl) and levallorphan tartrate on respiration.
D000522:Alphaprodine; D000700:Analgesics / Q000494:pharmacology*; D007977:Levallorphan; D009022:Morphine Derivatives; D012119:Respiration / Q000187:drug effects*; D013644:Tartrates
D000700:Analgesics; D009022:Morphine Derivatives; D013644:Tartrates; D000522:Alphaprodine; D007977:Levallorphan
ANALGESICS/effects; MORPHINE/derivatives; RESPIRATION/effect of drugs on