Alpha-adrenergic agonist

Alpha-adrenergic agonist is a type of medication that stimulates certain receptors in the body known as alpha-adrenergic receptors. These receptors are found in the heart, blood vessels, and other organs. When these receptors are activated, they can cause a variety of effects such as increasing heart rate and blood pressure.

Mechanism of Action

Alpha-adrenergic agonists work by mimicking the action of certain natural substances in the body, such as norepinephrine and epinephrine. These substances bind to alpha-adrenergic receptors, causing a response in the body. Alpha-adrenergic agonists can bind to these same receptors, causing similar effects.

Uses

Alpha-adrenergic agonists are used in the treatment of several conditions, including:

• Hypertension: These medications can help to reduce high blood pressure by causing the blood vessels to constrict.
• Congestive heart failure: Alpha-adrenergic agonists can help to increase the force of the heart's contractions, improving blood flow.
• Glaucoma: Certain alpha-adrenergic agonists can help to reduce pressure in the eye, which can be beneficial for people with glaucoma.

Side Effects

Like all medications, alpha-adrenergic agonists can cause side effects. These may include:

• Headache
• Nausea
• Dizziness
• Palpitations

Examples

Examples of alpha-adrenergic agonists include:

• Phenylephrine
• Clonidine
• Methoxamine

See Also

• Alpha-adrenergic antagonist
• Beta-adrenergic agonist
• Beta-adrenergic antagonist

Alpha-adrenergic agonist Resources
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