Alert

doxazosin

Pronunciation: dox AY zo sin

Brand: Cardura, Cardura XL

Cardura XL

slide 1 of 56, Cardura XL,

4 mg, round, white, imprinted with CXL 4

Image of Cardura XL
slide 1 of 56
    

Cardura XL

slide 2 of 56, Cardura XL,

8 mg, round, white, imprinted with CXL 8

Image of Cardura XL
slide 2 of 56
    

Cardura

slide 3 of 56, Cardura,

1 mg, oblong, white, imprinted with CARDURA, 1 mg

Image of Cardura
slide 3 of 56
    

Cardura

slide 4 of 56, Cardura,

2 mg, oblong, yellow, imprinted with CARDURA, 2 mg

Image of Cardura
slide 4 of 56
    

Doxazosin Mesylate

slide 5 of 56, Doxazosin Mesylate,

8 mg, round, white, imprinted with TV 598, 8

Image of Doxazosin Mesylate
slide 5 of 56
    

Doxazosin Mesylate

slide 6 of 56, Doxazosin Mesylate,

4 mg, diamond, white, imprinted with 596, TV

Image of Doxazosin Mesylate
slide 6 of 56
    

Doxazosin Mesylate

slide 7 of 56, Doxazosin Mesylate,

2 mg, oval, white, imprinted with 593, TV

Image of Doxazosin Mesylate
slide 7 of 56
    

Doxazosin Mesylate

slide 8 of 56, Doxazosin Mesylate,

1 mg, round, white, imprinted with 590, TV

Image of Doxazosin Mesylate
slide 8 of 56
    

Doxazosin Mesylate

slide 9 of 56, Doxazosin Mesylate,

1 mg, round, white, imprinted with M D9

Image of Doxazosin Mesylate
slide 9 of 56
    

Doxazosin Mesylate

slide 10 of 56, Doxazosin Mesylate,

2 mg, round, pink, imprinted with M D10

Image of Doxazosin Mesylate
slide 10 of 56
    

Doxazosin Mesylate

slide 11 of 56, Doxazosin Mesylate,

4 mg, round, blue, imprinted with M D11

Image of Doxazosin Mesylate
slide 11 of 56
    

Doxazosin Mesylate

slide 12 of 56, Doxazosin Mesylate,

8 mg, round, lavender, imprinted with M D12

Image of Doxazosin Mesylate
slide 12 of 56
    

Doxazosin Mesylate

slide 13 of 56, Doxazosin Mesylate,

1 mg, round, white, imprinted with APO, 093

Image of Doxazosin Mesylate
slide 13 of 56
    

Doxazosin Mesylate

slide 14 of 56, Doxazosin Mesylate,

2 mg, capsule, white, imprinted with APO, 094

Image of Doxazosin Mesylate
slide 14 of 56
    

Doxazosin Mesylate

slide 15 of 56, Doxazosin Mesylate,

4 mg, capsule, white, imprinted with APO, 095

Image of Doxazosin Mesylate
slide 15 of 56
    

Doxazosin Mesylate

slide 16 of 56, Doxazosin Mesylate,

1 mg, oval, white, imprinted with 1 mg, ML-P16

Image of Doxazosin Mesylate
slide 16 of 56
    

Doxazosin Mesylate

slide 17 of 56, Doxazosin Mesylate,

1 mg, round, white, imprinted with M D9

Image of Doxazosin Mesylate
slide 17 of 56
    

Doxazosin Mesylate

slide 18 of 56, Doxazosin Mesylate,

2 mg, round, pink, imprinted with M D10

Image of Doxazosin Mesylate
slide 18 of 56
    

Doxazosin Mesylate

slide 19 of 56, Doxazosin Mesylate,

8 mg, oval, white, imprinted with AP205

Image of Doxazosin Mesylate
slide 19 of 56
    

Doxazosin Mesylate

slide 20 of 56, Doxazosin Mesylate,

1 mg, oval, white, imprinted with ML-P16, 1 mg

Image of Doxazosin Mesylate
slide 20 of 56
    

Doxazosin Mesylate

slide 21 of 56, Doxazosin Mesylate,

2 mg, oval, yellow, imprinted with ML-P17, 2 mg

Image of Doxazosin Mesylate
slide 21 of 56
    

Doxazosin Mesylate

slide 22 of 56, Doxazosin Mesylate,

4 mg, oval, orange, imprinted with 4 mg, ML-P18

Image of Doxazosin Mesylate
slide 22 of 56
    

Doxazosin Mesylate

slide 23 of 56, Doxazosin Mesylate,

8 mg, oval, green, imprinted with ML-P19, 8 mg

Image of Doxazosin Mesylate
slide 23 of 56
    

Doxazosin Mesylate

slide 24 of 56, Doxazosin Mesylate,

1 mg, round, white, imprinted with 093, APO

Image of Doxazosin Mesylate
slide 24 of 56
    

Doxazosin Mesylate

slide 25 of 56, Doxazosin Mesylate,

2 mg, oblong, white, imprinted with 094, APO

Image of Doxazosin Mesylate
slide 25 of 56
    

Doxazosin Mesylate

slide 26 of 56, Doxazosin Mesylate,

4 mg, capsule, white, imprinted with APO, 095

Image of Doxazosin Mesylate
slide 26 of 56
    

Doxazosin Mesylate

slide 27 of 56, Doxazosin Mesylate,

8 mg, capsule, white, imprinted with 096, APO

Image of Doxazosin Mesylate
slide 27 of 56
    

Doxazosin Mesylate

slide 28 of 56, Doxazosin Mesylate,

1 mg, oval, white, imprinted with 1 mg, ML-P-16

Image of Doxazosin Mesylate
slide 28 of 56
    

Doxazosin Mesylate

slide 29 of 56, Doxazosin Mesylate,

2 mg, oval, yellow, imprinted with 2 mg, ML-P17

Image of Doxazosin Mesylate
slide 29 of 56
    

Doxazosin Mesylate

slide 30 of 56, Doxazosin Mesylate,

4 mg, oval, orange, imprinted with 4 mg, ML-P18

Image of Doxazosin Mesylate
slide 30 of 56
    

Doxazosin Mesylate

slide 31 of 56, Doxazosin Mesylate,

8 mg, oval, green, imprinted with 8 mg, ML P19

Image of Doxazosin Mesylate
slide 31 of 56
    

Cardura

slide 32 of 56, Cardura,

1 mg, oblong, white, imprinted with CARDURA, 1 mg

Image of Cardura
slide 32 of 56
    

Cardura

slide 33 of 56, Cardura,

2 mg, oblong, yellow, imprinted with CARDURA, 2 mg

Image of Cardura
slide 33 of 56
    

Cardura

slide 34 of 56, Cardura,

4 mg, oblong, orange, imprinted with CARDURA, 4 mg

Image of Cardura
slide 34 of 56
    

Cardura

slide 35 of 56, Cardura,

8 mg, oblong, green, imprinted with CARDURA, 8 mg

Image of Cardura
slide 35 of 56
    

Doxazosin Mesylate

slide 36 of 56, Doxazosin Mesylate,

1 mg, capsule, white, imprinted with AC 356

Image of Doxazosin Mesylate
slide 36 of 56
    

Doxazosin Mesylate

slide 37 of 56, Doxazosin Mesylate,

1 mg, round, white, imprinted with 783

Image of Doxazosin Mesylate
slide 37 of 56
    

Doxazosin Mesylate

slide 38 of 56, Doxazosin Mesylate,

1 mg, oblong, gray, imprinted with 1mg, ETH 266

Image of Doxazosin Mesylate
slide 38 of 56
    

Doxazosin Mesylate

slide 39 of 56, Doxazosin Mesylate,

1 mg, round, white, imprinted with M D9

Image of Doxazosin Mesylate
slide 39 of 56
    

Doxazosin Mesylate

slide 40 of 56, Doxazosin Mesylate,

1 mg, round, white, imprinted with R 642

Image of Doxazosin Mesylate
slide 40 of 56
    

Doxazosin Mesylate

slide 41 of 56, Doxazosin Mesylate,

1 mg, round, white, imprinted with N 590, 1

Image of Doxazosin Mesylate
slide 41 of 56
    

Doxazosin Mesylate

slide 42 of 56, Doxazosin Mesylate,

2 mg, round, white, imprinted with AC 357

Image of Doxazosin Mesylate
slide 42 of 56
    

Doxazosin Mesylate

slide 43 of 56, Doxazosin Mesylate,

2 mg, round, pink, imprinted with 784

Image of Doxazosin Mesylate
slide 43 of 56
    

Doxazosin Mesylate

slide 44 of 56, Doxazosin Mesylate,

2 mg, oblong, yellow, imprinted with 2 mg, ETH 267

Image of Doxazosin Mesylate
slide 44 of 56
    

Doxazosin Mesylate

slide 45 of 56, Doxazosin Mesylate,

2 mg, oblong, white, imprinted with R 643

Image of Doxazosin Mesylate
slide 45 of 56
    

Doxazosin Mesylate

slide 46 of 56, Doxazosin Mesylate,

2 mg, oblong, white, imprinted with N 593, 2

Image of Doxazosin Mesylate
slide 46 of 56
    

Doxazosin Mesylate

slide 47 of 56, Doxazosin Mesylate,

4 mg, capsule, pink, imprinted with 785

Image of Doxazosin Mesylate
slide 47 of 56
    

Doxazosin Mesylate

slide 48 of 56, Doxazosin Mesylate,

4 mg, oblong, pink, imprinted with 4 mg, ETH 268

Image of Doxazosin Mesylate
slide 48 of 56
    

Doxazosin Mesylate

slide 49 of 56, Doxazosin Mesylate,

4 mg, round, blue, imprinted with M D11

Image of Doxazosin Mesylate
slide 49 of 56
    

Doxazosin Mesylate

slide 50 of 56, Doxazosin Mesylate,

4 mg, diamond, white, imprinted with N 596, 4

Image of Doxazosin Mesylate
slide 50 of 56
    

Doxazosin Mesylate

slide 51 of 56, Doxazosin Mesylate,

8 mg, capsule, white, imprinted with AC 359

Image of Doxazosin Mesylate
slide 51 of 56
    

Doxazosin Mesylate

slide 52 of 56, Doxazosin Mesylate,

8 mg, round, purple, imprinted with 786

Image of Doxazosin Mesylate
slide 52 of 56
    

Doxazosin Mesylate

slide 53 of 56, Doxazosin Mesylate,

8 mg, oblong, blue, imprinted with ETH269, 8 mg

Image of Doxazosin Mesylate
slide 53 of 56
    

Doxazosin Mesylate

slide 54 of 56, Doxazosin Mesylate,

8 mg, round, lavender, imprinted with M D12

Image of Doxazosin Mesylate
slide 54 of 56
    

Doxazosin Mesylate

slide 55 of 56, Doxazosin Mesylate,

8 mg, round, white, imprinted with R 645

Image of Doxazosin Mesylate
slide 55 of 56
    

Doxazosin Mesylate

slide 56 of 56, Doxazosin Mesylate,

8 mg, round, white, imprinted with N 598, 8

Image of Doxazosin Mesylate
slide 56 of 56
    

What is the most important information I should know about doxazosin?

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

What is doxazosin?

Doxazosin is an alpha-adrenergic (AL-fa ad-ren-ER-jik) blockers. Doxazosin relaxes your veins and arteries so that blood can more easily pass through them. It also relaxes the muscles in the prostate and bladder neck, making it easier to urinate.

Doxazosin is used to treat hypertension (high blood pressure), or to improve urination in men with benign prostatic hyperplasia (enlarged prostate).

The extended-release form of doxazosin (Cardura XL) is for use only in treating benign prostatic hyperplasia and should not be used to treat hypertension.

Doxazosin may also be used for purposes not listed in this medication guide.

What should I discuss with my doctor before taking doxazosin?

You should not use this medicine if you are allergic to doxazosin or similar medicines such as alfuzosin (Uroxatral), prazosin (Minipress), silodosin (Rapaflo), tamsulosin (Flomax), or terazosin (Hytrin).

To make sure doxazosin is safe for you, tell your doctor if you have:

  • a blockage in your digestive tract (stomach or intestines);
  • severe constipation;
  • liver disease; or
  • low blood pressure.

Doxazosin can affect your pupils during cataract surgery. Tell your eye surgeon ahead of time that you are using this medication. Do not stop using doxazosin before surgery unless your surgeon tells you to.

It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.

It is not known whether doxazosin passes into breast milk or if it could harm a nursing baby. You should not breast-feed while using this medicine.

How should I take doxazosin?

Follow all directions on your prescription label. Your doctor may occasionally change your dose. Do not use this medicine in larger or smaller amounts or for longer than recommended.

Doxazosin lowers blood pressure and may cause dizziness or fainting, especially when you first start taking it, or when you start taking it again.

You may feel very dizzy when you first wake up. Be careful when standing or sitting up from a lying position.

Call your doctor if you have severe dizziness or feel like you might pass out.

While using doxazosin, your blood pressure or prostate may need to be checked often.

If you stop taking doxazosin for any reason, ask your doctor before you start taking it again. You may need a dose adjustment.

If you are being treated for high blood pressure, keep using this medicine even if you feel well. High blood pressure often has no symptoms. You may need to use blood pressure medicine for the rest of your life.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

If you miss your doses for several days in a row, call your doctor before restarting the medication. You may need a lower dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include extreme dizziness or fainting.

What should I avoid while taking doxazosin?

Doxazosin may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.

Avoid getting up too fast from a sitting or lying position, or you may feel dizzy. Get up slowly and steady yourself to prevent a fall.

To prevent dizziness, avoid standing for long periods of time or becoming overheated during exercise and in hot weather.

Drinking alcohol with this medicine can cause side effects.

What are the possible side effects of doxazosin?

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

  • a light-headed feeling, like you might pass out;
  • severe ongoing stomach pain or bloating;
  • new or worsening chest pain;
  • trouble breathing; or
  • a penis erection that is painful or lasts 4 hours or longer.

Common side effects may include:

  • low blood pressure, dizziness;
  • drowsiness;
  • headache; or
  • feeling weak or tired.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect doxazosin?

Tell your doctor about all your current medicines and any you start or stop using, especially:

  • an antibiotic;
  • an antidepressant;
  • medicine to treat HIV or AIDS; or
  • sildenafil (Viagra) or other erectile dysfunction medicines.

This list is not complete. Other drugs may interact with doxazosin, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.

Where can I get more information?

Your pharmacist can provide more information about doxazosin.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 1996-2019 Cerner Multum, Inc. Version: 9.01. Revision date: 3/7/2017.

Your use of the content provided in this service indicates that you have read, understood and agree to the End-User License Agreement, which can be accessed by End-User License Agreement, which can be accessed by clicking on this link.

Symptom Checker

Feeling under the weather?

Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.

Interactive Tools

Get started learning more about your health!

Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups, and pregnancy.

Related Locations

Top