adrenaline , noradrenaline and isoprenaline all produce inhibition of acetylcholine induced contractions in both untreated and reserpinized tissues that can be antagonized with azapetine and propranolol on its specific receptors but propranolol has a greater capacity to decrease the sensitivity of both untreated and reserpinized tissues to isoprenaline and adrenaline than azapetine can in case of noradrenaline and adrenaline .
C0028351
noradrenaline
C0014563
adrenaline