acetylcholine hydrochloride , prostaglandin f2a , histamine dihydrochloride and serotonin-creatinine sulfate induced contractile responses in guinea pig tracheal tissues were attenuated , while , isoprenaline hydrochloride , prostaglandin e2 , salbutamol hemisulfate , aminophylline and adrenaline-induced relaxing responses were potentiated with continuous infusion of etafenone hydrochloride .
C0033554
prostaglandin
C0012472
prostaglandin e2