Wednesday January 9, 2008


Q; Which 2 very commonly used medicines, physicians prescribe simultaneously and probably reflexly - but they cancel each other effects ?


A; β-blockers and Dobutamine (while trying to control tachycardia of dobutamine by b-blockers)

Dobutamine is a selective β1 adrenergic agonist and its effect get neutralize by β-blockers.

Atenolol, Esmolol, Metoprolol are β1 blockers
Carvedilol, Labetalol and Nadolol are β1, β2 blockers