Some a-receptor blockers are non-selective, such as phentolamine (a 1- and a2-blockade), and some are selective, such as labetalol (a1- and b-blocker). Stimulation of the a1 receptor causes arteriolar and venous constriction, and stimulation of the a 2 receptor causes decreased central sympathetic outflow. This type of drug is particularly useful in the treatment of pheochromocytoma crises, hypertension following intracranial hypertension, and pregnancy-induced hypertension ( Tietjen et al.

Reducing Blood Pressure Naturally

Reducing Blood Pressure Naturally

Do You Suffer From High Blood Pressure? Do You Feel Like This Silent Killer Might Be Stalking You? Have you been diagnosed or pre-hypertension and hypertension? Then JOIN THE CROWD Nearly 1 in 3 adults in the United States suffer from High Blood Pressure and only 1 in 3 adults are actually aware that they have it.

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