"What are beta blockers and how do they work?
Beta blockers, also known as beta-adrenergic blocking agents, are a class of drugs that works by blocking the neurotransmitters norepinephrine and epinephrine from binding to receptors. "...
Patients, especially those with evidence of coronary artery disease, should be warned against interruption or discontinuation of Sectral therapy without a physician's supervision. Although cardiac failure rarely occurs in properly selected patients, those being treated with β-adrenergic blocking agents should be advised to consult a physician if they develop signs or symptoms suggestive of impending CHF, or unexplained respiratory symptoms.
Patients should also be warned of possible severe hypertensive reactions from concomitant use of α- adrenergic stimulants, such as the nasal decongestants commonly used in OTC cold preparations and nasal drops.
Last reviewed on RxList: 3/10/2016
This monograph has been modified to include the generic and brand name in many instances.
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