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Table of Contents > Drug > Doxazosin Print

Doxazosin

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Notes
Related terms
Uses
Dosing
Safety
Author information

Notes

    Related terms
    • Brand Names: U.S.: Cardura®;Cardura® XL
    • Brand Names: Canada: Alti-Doxazosin;Apo-Doxazosin®;Cardura-1T;Cardura-2T;Cardura-4T;Gen-Doxazosin;Mylan-Doxazosin;Novo-Doxazosin
    • Mexican Brand Names: Cardura
    • Pharmacologic Category: Alpha1 Blocker

    Uses
    • It is used to treat high blood pressure.
    • In men, it is used to treat the signs of an enlarged prostate.
    • Doxazosin calms blood vessels, lowering blood pressure.
    • It calms muscles of the prostate, making signs better.

    Dosing

    How to take

    • Take in the morning or at bedtime as you have been told by your doctor.
    • Take with or without food. Take with food if it causes an upset stomach.
    • Cardura® XL: Take with breakfast. Swallow it whole. Do not chew, break, or crush it.
    • Drink lots of noncaffeine liquids unless told to drink less liquid by your doctor.
    • If you are using this drug for blood pressure, follow the diet and workout plan your doctor told you about.

    Missed Dose

    • Take a missed dose as soon as you think about it.
    • If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
    • Do not take 2 doses at the same time or extra doses.
    • Do not change the dose or stop this drug. Talk with the doctor.

    Storage

    • Store at room temperature.
    • Protect from water. Do not store in a bathroom or kitchen.

    Safety



    Warnings

    • Unsafe side effects may happen. This drug cannot be taken while you are taking some other drugs. Check all the drugs you are taking with your doctor.

    Avoid

    • If you have an allergy to doxazosin or any other part of this drug.
    • Tell your doctor if you are allergic to any drugs. Make sure to tell about the allergy and what signs you had. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
    • Long-acting products: If you have a narrowing of the GI (gastrointestinal) tract or a bowel block.

    Precautions

    • If you have liver disease, talk with your doctor.
    • If you are having cataract surgery, talk with your doctor.
    • Have your blood pressure and heart rate checked often. Talk with your doctor.
    • If taking for an enlarged prostate, have a rectal exam (to check prostate gland) and blood work (PSA test). Talk with your doctor.
    • Check all drugs you are taking with your doctor. This drug may not mix well with some other drugs.
    • If you are taking this drug and have high blood pressure, talk with your doctor before using OTC products that may raise blood pressure. These include cough or cold drugs, diet pills, stimulants, ibuprofen or like products, and some natural products or aids.
    • Avoid beer, wine, or mixed drinks.
    • Be careful in hot weather. Drink lots of fluids to stop fluid loss.
    • Tell your doctor if you are pregnant or plan on getting pregnant.
    • Tell your doctor if you are breast-feeding.

    Side Effects

    • Feeling dizzy. Rise slowly over a few minutes when sitting or lying down. Be careful climbing.
    • Headache.
    • Nose stuffiness.
    • Change in sex ability. This most often goes back to normal.
    • Long-acting tablet shell in the stool.

    Contact a healthcare provider

    • If you think there was an overdose, call your local poison control center or ER right away.
    • Signs of a very bad reaction to the drug. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; seizures; or swelling of face, lips, tongue, or throat.
    • Very bad dizziness or passing out.
    • Very bad headache.
    • Any rash.
    • Health problem is not better or you are feeling worse.

    General Statements

    • If you have a very bad allergy, wear an allergy ID at all times.
    • Do not share your drugs with others and do not take anyone else's drugs.
    • Keep all drugs out of the reach of children and pets.
    • Most drugs may be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.
    • In Canada, take any unused drugs to the pharmacy. Also, visit http://www.hc-sc.gc.ca/hl-vs/iyh-vsv/med/disposal-defaire-eng.php#th to learn about the right way to get rid of unused drugs.
    • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
    • Call your doctor for help with any side effects. If in the U.S., you may also call the FDA at 1-800-FDA-1088 or if in Canada, you may also call Health Canada's Vigilance Program at 1-866-234-2345.
    • Talk with the doctor before starting any new drug, including OTC, natural products, or vitamins.

    Author information
    • Copyright © 1978-2010 Lexi-Comp Inc. All rights reserved.

    Copyright © 2011 Natural Standard (www.naturalstandard.com)


    The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.

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