Alpha 1 adrenergic receptors antagonists (blockers): mechanism of action animation

Additional information about alpha 1 blocking drugs.  Source: Bertram G. Katzung, Basic & Clinical Pharmacology (Mc Graw-Hill Medical, 2007) ” Phentolamine, an imidazoline derivative, is a potent competitive antagonist at both alpha 1 and alpha 2 receptors . Phentolamine causes a reduction in peripheral resistance through blockade of alpha 1 receptors and possibly alpha 2 […]

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