beta blocker

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Related to beta blocker: alpha blocker

beta blocker

a popular term for a beta-adrenergic blocking (or beta receptor antagonist) agent. See antiadrenergic.

beta blocker

Beta-adrenergic blocking agent Pharmacology Any of a class of agents that blocks β1 and/or β2 adrenergic receptors in the nervous system Effect ↓ Heart rate, ↓ BP, ↓ anxiety Indications Angina, arrhythmias, HTN, mitral valve prolapse, tachycardia, etc


A drug that prevents the normal action of a system or cell receptor. See: antagonist; blockade; inhibitor

beta blocker

Beta-adrenergic blocking agent.

bronchial blocker

Abbreviation: BB
A device for facilitating single-lung ventilation during thoracic surgery or thoracoscopy. The bronchial blocker is placed into the mainstem bronchus on the side of the chest where the operation is being performed, and its balloon is inflated within the airway. Potential complications of the device include dislodgement, misplacement, or accumulation of fluid behind the blockade.

calcium channel blocker

Abbreviation: CCB
Any of a group of drugs that slow the influx of calcium ions into smooth muscle cells, resulting in decreased arterial resistance and oxygen demand. These drugs are used to treat angina, hypertension, vascular spasm, intracranial bleeding, congestive heart failure, and supraventricular tachycardia. Because hypotension occurs as both an intended and, occasionally, an unwelcome effect, blood pressure must be monitored especially closely during the initial treatment period.

H2 blocker

See: H2-receptor antagonist

Beta blocker

A drug that can be used to reduce blood pressure.
Mentioned in: Mitral Valve Stenosis
References in periodicals archive ?
The results of this pilot study suggest that melatonin may be beneficial in the treatment of sleep disturbances associated with beta blocker therapy.
14, 2013 /PRNewswire-USNewswire/ -- People taking the blood pressure drugs called beta blockers may be less likely to have changes in the brain that can be signs of Alzheimer's disease and other types of dementia, according to a study that will be presented at the American Academy of Neurology's 65th Annual Meeting in San Diego, March 16 to 23, 2013.
Beta blockers were the first class of drugs to be rationally designed based on molecular structure.
Previously, the American Heart Association had discouraged the use of beta blockers in this patient group and in patients who had had a heart attack after three years, citing the drugs' unreliable effectiveness as a long-term solution.
Beta blockers are known to reduce deaths and hospitalisation in patients with heart failure.
Until now, a reduction in blood pressure was always thought to be best achieved with beta blockers, in particular Atenolol.
Similarly, the risk of hospitalization for any cause was reduced by about 14% in men and women on a beta blocker.
After taking into consideration certain patient characteristics (such as weight and smoking status) and other factors that might influence the results, the researchers found no link between beta blocker use and colorectal cancer risk.
The researchers also found that a type of heart medication called a beta blocker appeared to protect patients from the Monday surge in arrhythmias.
Because beta blocker withdrawal has been associated with an increased risk of MI and chest pain, patients already on beta blockers should generally continue treatment throughout the perioperative period.
London, May 13 (ANI): A new research led by Dundee University has suggested that beta blocker drugs, usually prescribed for heart diseases, may also help sufferers of chronic bronchitis and emphysema.