The respiratory effects of meperidine alone and in combination with levallorphan in patients with pulmonary emphysema.
D019069:Cell Respiration; D007977:Levallorphan; D008614:Meperidine / Q000628:therapy*; D009020:Morphine / Q000037:antagonists & inhibitors*; D011656:Pulmonary Emphysema / Q000628:therapy*; D012119:Respiration / Q000494:pharmacology*
D007977:Levallorphan; D009020:Morphine; D008614:Meperidine
MEPERIDINE/therapy; MORPHINE/antagonists; PULMONARY EMPHYSEMA/therapy; RESPIRATION/pharmacology