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What is Doxazosin used for?

Doxazosin is prescribed to treat high blood pressure and enlarged prostate gland. It relaxes and expands blood vessels, which in turn improves blood flow and results in lowered blood pressure. Besides, by relaxing muscles in the prostate and bladder neck, Doxazosin also treats the prostate enlargement symptoms such as burning during urination, frequent urination, urinary hesitancy, and incomplete emptying of the bladder. This medicine may also be used to treat other conditions as determined by your doctor.

What is the recommended dosage of Doxazosin?

The dosage of Doxazosin prescribed to each patient will vary. Always follow your physician’s instructions and/or the directions on the prescription drug label.

Take each dose of Doxazosin with a full glass of water. This medication can be taken with or without food.

What if you miss a dose of Doxazosin?

If your physician has instructed or directed you to take Doxazosin medication in a regular schedule and you have missed a dose of this medicine, take it as soon as you remember. However, if it is almost time for your next dose, then skip the missed dose and go back to your regular dosing schedule. Do not double the doses unless otherwise directed.

What if you overdose on Doxazosin?

Any medication taken in excess can have serious consequences. If you suspect an overdose of Doxazosin, seek medical attention immediately. Some of the overdose symptoms of this drug are seizures, drowsiness, and fainting.

What other drugs could interact with Doxazosin?

It may be noted that drugs other than those listed above may also interact with Doxazosin.

Usually drug interactions occur when it is taken with another drug or with food. Before you take a medication for a particular ailment, you should inform the health expert about intake of any other medications including non-prescription medications, over-the-counter medicines that may increase the effect of Doxazosin, and dietary supplements like vitamins, minerals and herbal, so that the doctor can warn you of any possible drug interactions.

Doxazosin can interact with other blood pressure medicines, sedatives, and narcotic pain medicines.

Do let your doctor know if you smoke, consume alcohol or caffeinated drinks, or use illegal drugs as these may interfere with the action of your medication. Make sure to inform your doctor of any medical conditions you may have, or any family history of medical problems. Do not start or stop using any medicine without consulting your doctor.

What are the side effects of Doxazosin?

Like other medicines, Doxazosin can cause some side effects. If they do occur, the side effects of Doxazosin are most likely to be minor and temporary. However, some may be serious and may require the individual to inform the doctor or visit the nearest hospital immediately.

It is pertinent to note that side effects of Doxazosin cannot be anticipated. If any side effects of Doxazosin develop or change in intensity, the doctor should be informed as soon as possible.

Doxazosin can cause side effects such as dizziness, weakness, nervousness, restlessness, headache, trouble sleeping, nausea, and runny nose. Some of the serious side effects of this drug are chest pain, depression, fast heartbeats, sexual problems, and swelling of hands or feet. This is not a complete list of all side effects. Do concur with your doctor and follow his directions completely when you are taking Doxazosin.

What are the questions to ask your doctor before taking Doxazosin?

Is it possible for me to take Doxazosin with other drugs?
Should certain beverages, foods and other products be avoided when I take Doxazosin?
What are the possible drug interactions of Doxazosin?
How will Doxazosin work in my body?
How should Doxazosin be taken?
How to reduce the risk of Doxazosin drug interactions and side effects?


The health and medical information provided here is intended to supplement and not substitute for the expertise and judgment of your physician, pharmacists or other health care professional. Before using Doxazosin, tell your doctor if you have liver or kidney disease. Also inform your doctor if you are pregnant, plan to become pregnant or breast-feeding. While using this medication, limit your intake of alcohol. Avoid any activity that requires full mental alertness. Do not get up too fast from a sitting or lying position.


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