Levo propoxyphene and respiratory tract fluid.
D000700:Analgesics; D001826:Body Fluids; D003371:Cough / Q000628:therapy*; D011431:Dextropropoxyphene; D006801:Humans; D012137:Respiratory System / Q000494:pharmacology*
D000700:Analgesics; D011431:Dextropropoxyphene
COUGH/therapy; RESPIRATORY SYSTEM/pharmacology