Chronic Conditions

Prazosin Capsules

Generic For Minipress
starting at $27.99

Prazosin is a medication used to lower blood pressure and improve circulation by relaxing blood vessels. It works by blocking alpha-1 receptors, which reduces the tightening of blood vessels and makes it easier for blood to flow. It is also sometimes used to help with symptoms of PTSD-related nightmares.

  • Prazosin belongs to the class of alpha-1 adrenergic receptor blockers
  • May be combined with other antihypertensive medications for better blood pressure control
  • Should be taken at the same time each day for consistent effect
  • Should not stop taking prazosin abruptly without consulting a doctor
HSA/FSA Eligible
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  • Prazosin Capsules Medication Description

    Prazosin is an alpha-1 adrenergic receptor antagonist primarily used to treat hypertension by relaxing blood vessels and reducing peripheral resistance. By blocking alpha-1 receptors in vascular smooth muscle, prazosin prevents the constriction of blood vessels, allowing blood to flow more easily and lowering blood pressure. This mechanism makes it an option for patients who require additional blood pressure control beyond lifestyle changes or other medications. The medication is usually started at a low dose to avoid the “first-dose phenomenon,” which can cause sudden dizziness or fainting. It is often combined with other antihypertensive drugs as part of a comprehensive treatment plan. Because prazosin acts systemically, monitoring blood pressure and adjusting doses carefully are essential for safety and effectiveness.
  • Prazosin Capsules Side Effects

    Prazosin is generally well tolerated, but common side effects include dizziness, headache, drowsiness, and fatigue, especially when starting treatment. Orthostatic hypotension (a sudden drop in blood pressure when standing) can occur, particularly after the first dose. Rare but serious side effects include fainting, rapid heartbeat, or severe allergic reactions. Patients should report persistent dizziness, chest pain, or swelling to their healthcare provider and avoid abrupt discontinuation without medical advice.
  • Consumer Information Use and Disclaimer

    This information should not be used to decide whether or not to take this medicine or any other medicine. Only a healthcare provider has the knowledge and training to decide which medicines are right for you. TelyRx does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a limited summary of general information about the medicine’s uses from the patient education materials and is not intended to be comprehensive. This limited summary does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not intended to provide medical advice, diagnosis or treatment and does not replace information you may receive from your healthcare provider. For a more detailed summary of information about the risks and benefits of using this medicine, please review the entire patient education information you receive with the medication.

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