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 Dr. George Jacob
Heart Infocenter

Holistic-online.com

Hypertension (High Blood Pressure)

Blood Pressure Medications

Alpha-adrenergic Blocking Drugs (Alpha Blockers)

Alpha blockers block the nerve receptors called alpha receptors. Alpha receptors normally promote constriction of the arterioles. Blocking constriction promotes dilation of vessels and lowers blood pressure, as well as reduces the work of the heart in some situations. These drugs also inhibit the production and the effect of adrenaline, a potent stimulator released by the body in response to stress. Too much adrenaline can overexcite the circulatory system and cause blood pressure to climb.

Examples of alpha blockers are: Cardura, Minipress, etc.

Side effects of alpha blockers

Dizziness

Fainting

Nausea

Headache

palpitations.

According to results from an NIH clinical study, an alpha blocker may not be the best choice for initial treatment for uncomplicated high blood pressure.

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