Blocker

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Blocker

Blocker (/ˈblɒkər/), from the English term "block", is a term used in various fields of medicine to denote substances or interventions that inhibit certain actions or processes.

Etymology

The term "blocker" is derived from the English word "block", which means to prevent movement or progress. In the medical context, it refers to substances or interventions that prevent or inhibit certain physiological processes.

Medical Usage

In medicine, blockers are often used to inhibit the action of certain substances or processes in the body. They are commonly used in the treatment of various conditions, such as hypertension, arrhythmias, and asthma.

Beta Blockers

Beta blockers, also known as beta-adrenergic blocking agents, are a class of drugs that are particularly used to manage abnormal heart rhythms, and to protect the heart from a second heart attack (myocardial infarction) after a first heart attack (secondary prevention).

Calcium Channel Blockers

Calcium channel blockers are a type of medication that disrupt the movement of calcium through calcium channels, which are present in the muscle cells of the heart and the smooth muscle of the vascular system.

Alpha Blockers

Alpha blockers, also known as alpha-adrenergic antagonists, interrupt the movement of alpha-adrenergic, which can constrict the blood vessels. This action can help to improve the flow of blood and lower blood pressure.

Related Terms

  • Antagonist: A substance that interferes with or inhibits the physiological action of another.
  • Inhibitor: A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
  • Receptor: A region of tissue, or a molecule in a cell membrane, that responds specifically to a particular neurotransmitter, hormone, antigen, or other substance.

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