<prompt> All are endogenous catecholamines except ?EpinephrineNorepinephrineDopamineDobutamine  <response>: Ans. is d i.e., Dobutamine Catecholamines Endogenous : -Adrenaline, noradrenaline, dopamine. Synthetic : - Isoprenaline, Dobutamine, Dopexamne, Fenoldopam, Dipivefrine, Ibopamine. 