Alpha blockers are substances that antagonize alpha receptors which are located primarily in smooth muscle. This acts to vasodilate in the arterial system and, thus, these agents are used to treat ...

For instance, your doctor may not prescribe beta-blockers if you have asthma because taking them could trigger an attack. Also called alpha-adrenergic blocking agents or alpha-1 blockers ...

Discover how controlling blood pressure can protect your brain health, as groundbreaking research shows an impressive ...

Beta-blockers are a type of drug that can reduce stress on the heart. Fish, garlic, berries, and certain vitamins and amino acids are all natural alternatives to beta-blockers. Doctors usually ...

Initiation or switching β blockers is not recommended in patients experiencing a severe decompensation of HF (e.g., requiring intravenous positive inotropic agents, vasodilators, or mechanical ...

Beta-blockers are effective at decreasing the morbidity and mortality associated with CHF. They lower the risk of all-cause mortality, cardiovascular mortality, sudden death, and death from ...

Beta-blockers antagonize beta-1 and beta-2 receptors which are the usual targets of the sympathetic nervous system, including epinephrine and norepinephrine. This results in a decreased heart rate ...

One way or another, beta blockers are always in the news. Take, for instance, Los Angeles Chargers Head Coach Jim Harbaugh, who revealed in October that he's part of a growing group of Americans ...

Epinephrine acts on both alpha- and beta-adrenergic receptors ... May be antagonized by β-blockers (eg, propranolol), α-blockers (eg, phentolamine), ergot alkaloids. Arrhythmias possible ...

Atenolol blocks beta-1 receptors, which are present on the heart. This medication is a beta-blocker, prescribed for high blood pressure and to prevent heart pain and recurrence of heart attacks.