Doxazosin (Cardura)
What You Need To Know

Brand Name: Cardura

What is Doxazosin (Cardura)?

The Information about Doxazosin (Cardura) contained herein is a compilation of materials available from and simplified for the average consumer.

doxazosin carduraDoxazosin also known by the brand name Cardura is an alpha blocker. Alpha blockers relax certain muscles and help small blood vessels remain open. They work by keeping the hormone nor-epinephrine (nor-adrenaline) from tightening the muscles in the walls of smaller arteries and veins.

Doxazosin (Cardura) blocks that effect which causes the vessels to remain open and relaxed. This improves blood flow and lowers blood pressure.

There are drug free alternatives to lowering your blood pressure that may be effective for you. Read about them here.

How to use Doxazosin (Cardura)

  • taking pillTake Doxazosin (Cardura) as prescribed on your medication bottle. Do not take more or less or for longer than recommended by your doctor.
  • Your doctor may change your dosage to maintain best results or if you stop taking it for any period of time.
  • Doxazosin (Cardura) should be stored at room temperature away from moisture and heat.
  • If you miss a dose of Doxazosin (Cardura), 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.

Ask your health care provider any questions you may have about how to use Doxazosin (Cardura).

What to know before using Doxazosin (Cardura):

If you are using any of the medications below, discuss with your doctor before using Doxazosin (Cardura):

  • sildenafil (Viagra, Revatio)
  • tadalafil (Cialis)
  • vardenafil (Levitra)
  • any other blood pressure medications.

This may not be a complete list. Tell your doctor about all medications you use, including prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

If any of the following conditions apply to you, discuss with your doctor before taking or changing your dosage of Doxazosin (Cardura):

  • liver diseaseallergy to Doxazosin (Cardura) or similar medications.
  • liver disease
  • history of prostate cancer
  • Cataract surgery

Side effects of Doxazosin (Cardura):

Stop using Doxazosin (Cardura) and call your doctor at once if you have any of these serious side effects:

  • Blurred vision
  • confusion
  • dizziness, faintness, or lightheaded when getting up from a lying or sitting position
  • fainting (sudden)
  • fast and pounding heartbeat
  • irregular heartbeat
  • shortness of breath
  • sweating
  • swelling of feet or lower legs
  • Painful or prolonged erection of the penis. If this occurs, call your doctor or go to an emergency room as soon as possible
  • Abdominal or stomach pain
  • black tarry, light or clay colored stools
  • bleeding gums
  • blood in urine or stools
  • chest pain or discomfort
  • chills
  • cough
  • dark urine
  • diarrhea
  • difficulty breathing
  • difficult, burning, or painful urination
  • fever
  • general tiredness and weakness
  • headache, sudden and severe
  • inability to speak
  • itching
  • liver problems
  • loss of appetite
  • noisy breathing
  • pain or discomfort in arms, jaw, back or neck
  • pinpoint red or purple spots on skin
  • rash
  • seizures
  • slow or irregular heartbeat
  • slurred speech
  • sore throat
  • sores, ulcers, or white spots on lips or in mouth
  • swollen glands
  • temporary blindness
  • tightness in chest
  • unpleasant breath odor
  • unusual bleeding or bruising
  • upper right abdominal pain
  • vomiting
  • vomiting of blood
  • weakness in arm and/or leg on one side of the body, sudden and severe
  • wheezing
  • yellow eyes and skin

Less serious side effects may include:

  • Headache
  • lack or loss of strength
  • unusual tiredness or weakness
  • Acid or sour stomach
  • back pain
  • belching
  • bladder pain
  • cloudy urine
  • difficulty in moving
  • frequent urge to urinate
  • heartburn
  • indigestion
  • joint pain
  • lower back or side pain
  • muscle aching, cramping, or weakness
  • muscle pains or stiffness
  • nausea
  • nervousness, restlessness, unusual irritability
  • runny nose
  • sleepiness or drowsiness
  • sneezing
  • sore throat
  • stomach discomfort, upset or pain
  • swollen joints
  • Anxiety
  • burning, crawling, itching, numbness, prickling, “pins and needles”, or tingling feeling
  • change in frequency or urination
  • dry mouth
  • feeling of warmth
  • frequent urination
  • general feeling of discomfort or illness
  • hair loss
  • hives or welts
  • hyperventilation
  • increased urge to urinate during the night
  • increased volume of pale dilute urine
  • loss of appetite
  • painful urination
  • redness of skin
  • redness of the face, neck, arms and occasionally upper chest
  • shaking
  • swelling of the breasts or breast soreness in both females and males
  • thinning of hair
  • trouble in holding or releasing urine
  • trouble sleeping
  • waking to urinate at night
  • weight loss

The information about Doxazosin (Cardura) comes from

Doxazosin (Cardura) Natural Alternatives:

tikvawithdrinkIf you are taking Doxazosin (Cardura) or other Alpha blockers, the various ingredients  in Tikva have been proven through either clinical trials or other research to lower your blood pressure naturally by dilating (widening) the arteries. Tikva has several natural ingredients that help to widen the arteries, so they do not become too narrow.

Several of the ingredients in Tikva can also increase circulation, dissolve plaque that is already in the arteries and reduce new plaque from forming. In addition, there are ingredients in Tikva to help reduce stress that often increases blood pressure without all of the side effects.

Read more about the natural ingredients in Tikva on our research and ingredients page, by clicking here.

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The information provided on this page should not be used to decide whether or not to take Doxazosin (Cardura) or any other medicine. Consult your doctor to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition.

This information about Doxazosin (Cardura) is a brief summary and does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to Doxazosin (Cardura).

This information is not specific medical advice and does not replace information you receive from your health care provider. You must speak with your doctor for complete information about the risks and benefits of using Doxazosin (Cardura).