Alpha-adrenergic blockers

Definition

Alpha-adrenergic blockers are medications that inhibit the action of alpha-adrenergic receptors, leading to vasodilation and decreased blood pressure. They are often used to manage conditions like hypertension and can be beneficial in treating certain types of migraines.

5 Must Know Facts For Your Next Test

1. Alpha-adrenergic blockers can help reduce the frequency and severity of migraine headaches by improving blood flow.
2. These medications work by blocking alpha-1 receptors, which prevents vasoconstriction and lowers blood pressure.
3. Common side effects include dizziness, headache, and fatigue due to their blood pressure-lowering effects.
4. Alpha-adrenergic blockers are often used in combination with other drugs for comprehensive migraine management.
5. They should be used cautiously in patients with a history of hypotension or heart conditions.

Review Questions

• How do alpha-adrenergic blockers help in managing migraine headaches?
• What is a common side effect of taking alpha-adrenergic blockers?
• Why should alpha-adrenergic blockers be used cautiously in certain patients?

Related terms

Beta-adrenergic Blockers: Medications that block beta receptors, reducing heart rate and blood pressure.

Calcium Channel Blockers: Drugs that prevent calcium from entering cells of the heart and blood vessel walls, often used to treat high blood pressure.

Serotonin Receptor Agonists: Medications that stimulate serotonin receptors, commonly used in migraine treatment to alleviate pain.