Beta blockers may slow the heart rate to a dangerous level if prescribed together with calcium channel blocker type medications.

Beta blockers such as propranolol ( Inderal, Inderal LA, Innopran XL ) can help to control the heart rate, and intravenous steroids may be used to help support the circulation.

Beta blockers, typically used to treat high blood pressure, are a class of drugs that offset this effect, reducing rapid pulse associated with the sensation of palpitations, and decreasing tremor and anxiety.

Beta blockers ( e. g., carvedilol, propranolol, atenolol ) have a large body of evidence in morbidity and mortality benefits ( fewer symptoms, less disability and longer life ) and short-acting nitroglycerin medications have been used since 1879 for symptomatic relief of angina.

Beta blockers that target the beta-1 receptor are called cardio selective because beta-1 is responsible for increasing heart rate ; hence a beta blocker will slow the heart rate.

Beta blockers ( sometimes written as β-blockers ) or beta-adrenergic blocking agents, beta-adrenergic antagonists, beta-adrenoreceptor antagonists or beta antagonists, are a class of drugs used for various indications.

Beta blockers block the action of endogenous catecholamines epinephrine ( adrenaline ) and norepinephrine ( noradrenaline ) in particular, on β-adrenergic receptors, part of the sympathetic nervous system which mediates the fight-or-flight response.

Beta blockers have also been used for:

Beta blockers are primarily known for their reductive effect on heart rate, although this is not the only mechanism of action of importance in congestive heart failure.

Beta blockers, in addition to their sympatholytic B1 activity in the heart, influence the renin / angiotensin system at the kidneys.

Beta blockers cause a decrease in renin secretion, which in turn reduces the heart oxygen demand by lowering extracellular volume and increasing the oxygen-carrying capacity of blood.

Beta blockers ' sympatholytic activities reduce heart rate, thereby increasing the ejection fraction of the heart despite an initial reduction in ejection fraction.

Beta blockers are inexpensive, said to be relatively safe and, on one hand, seem to improve musicians ' performances on a technical level, while some say the performances may be perceived as " soulless and inauthentic ".

Beta blockers are banned by the International Olympic Committee.

Beta blockers must not be used in the treatment of cocaine, amphetamine, or other alpha-adrenergic stimulant overdose.

Beta blockers are contraindicated in patients with asthma as stated in the BNF 2011.

Beta blockers inhibit these normal epinephrine and norepinephrine-mediated sympathetic actions, but have minimal effect on resting subjects.

Beta blockers are readily titrated to optimal rate control in many pathologic states.

Beta blockers decrease nocturnal melatonin release, perhaps partly accounting for sleep disturbances caused by some agents.

Category: Beta blockers

** Beta blockers

Beta blockers and other pharmacological agents that slow electrical conduction through the AV pathway ( such as digoxin ) should be avoided, because they can exacerbate the syndrome by blocking the heart's normal electrical pathway ( therefore favoring transmission through the pre-excitation pathway ).

Beta blockers can cause hypotension both by slowing the heart rate and by decreasing the pumping ability of the heart muscle.

Beta blockers never should be used alone to treat clonidine withdrawal as alpha vasoconstriction would still continue.

* Beta brasses, with 45 – 50 % zinc content, can only be worked hot, and are harder, stronger, and suitable for casting.

The two stars of Alpha and Beta Centauri are often referred to as the " Southern Pointers " or just " The Pointers ", allowing people to easily find the asterism of the Southern Cross or the constellation of Crux.

The four main stars that form the asterism are Alpha, Beta, Gamma, and Delta Crucis.

The dogs ' heads are marked by Alpha and Beta Centauri.

The two bright stars are ( left ) Alpha Centauri and ( right ) Beta Centauri.

Alpha and Beta Delphini are named Sualocin and Rotanev, respectively.

Beta and gamma subunits of G-protein are shown by blue and red, respectively.

Beta oxidation is the metabolic process by which fatty acids are broken down in the mitochondria and / or in peroxisomes to generate acetyl-CoA.

Others, such as Beta Colony and Komarr, can only be inhabited by people if they are gathered in cities under domes or arcologies with a controlled climate.

Star Trek Star Charts place the Romulan Empire into the Beta Quadrant of the galaxy, however, in the Star Trek: Deep Space Nine, they are referred to as an Alpha Quadrant power.

Beta and Gamma Trianguli Australis are white main sequence stars and round out the triangle.

Beta particles are high-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei such as potassium-40.

Beta particles can be used to treat health conditions such as eye and bone cancer and are also used as tracers.

Beta particles are also used in quality control to test the thickness of an item, such as paper, coming through a system of rollers.

Beta particles are able to penetrate living matter to a certain extent and can change the structure of struck molecules.

* Amerigo Vespucci maps the two stars Alpha Centauri and Beta Centauri, as well as the stars of the constellation Crux, which are below the horizon in Europe.

The Beta Israel, though somewhat disputed as descendants of ancient Israelites, are widely recognized in Israel as Ethiopian Jews.

In addition, there are several Technical Colleges in Richmond including ITT Technical Institute, ECPI College of Technology and Beta Tech.

Beta cells ( beta-cells, β-cells ) are a type of cell in the pancreas located in the so-called islets of Langerhans.

Recently, Francis and Anderson proposed that a systematic effect on Hipparcos parallax errors for stars in clusters biases calculation using the weighted mean, and gave a Hipparcos parallax distance of 126 pc, and photometric distance 132 pc based on stars in the AB Doradus, Tucana-Horologium and Beta Pictoris moving groups, which are similar in age and composition to the Pleiades.

Beta Cephei ( β Cep ) variables, or Beta Canis Majoris variables, as these stars are sometimes called, especially in Europe ) undergo short period pulsations in the order of 0. 1 – 0. 6 days with an amplitude of 0. 01 – 0. 3 magnitudes ( 1 % to 30 % change in luminosity ).

Beta Lyrae ( β Lyr ) variables are extremely close binaries, named after the star Sheliak.