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    Glossary Alpha-blockers

    medications that relax blood vessels by blocking norepinephrine

    Alpha-blockers, also known as alpha-adrenergic antagonists, are medications that relax certain muscles and help small blood vessels remain open. They work by blocking the action of norepinephrine, a hormone that tightens the muscles in the walls of smaller arteries and veins. This can improve blood flow and lower blood pressure, making them useful in treating conditions like hypertension and benign prostatic hyperplasia (BPH).

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