Effect of levallorphan tartrate upon toxicity of morphine.
D007977:Levallorphan; D009020:Morphine / Q000633:toxicity*; D009022:Morphine Derivatives; D013644:Tartrates
D009022:Morphine Derivatives; D013644:Tartrates; D007977:Levallorphan; D009020:Morphine
MORPHINE/toxicity