Adrenergic antagonist | Wikipedia audio article
Channel: wikipedia tts
Date: 28/10/2018

This is an audio version of the Wikipedia Article:
Adrenergic antagonist

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SUMMARY
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An adrenergic antagonist is a drug that inhibits the function of adrenergic receptors. There are five adrenergic receptors, which are divided into two groups. The first group of receptors are the beta (β) adrenergic receptors. There are β1, β2, and β3 receptors. The second group contains the alpha (α) adrenoreceptors. There are only α1 and α2 receptors. Adrenergic receptors are located near the heart, kidneys, lungs, and gastrointestinal tract. There are also α-adreno receptors that are located on vascular smooth muscle.Antagonists reduce or block the signals of agonists. They can be drugs, which are added to the body for therapeutic reasons, or endogenous ligands. The α-adrenergic antagonists have different effects from the β-adrenergic antagonists.