Doxazosin Mesylate

Medically Reviewed by Dr. Harshi Dhingra, M.D.

Last Reviewed: Apr 15, 2024

Common Questions


Common Questions about Doxazosin (Cardura)


What is the best time of day to take doxazosin?

You can take doxazosin immediate-release tablets at any time of the day without regard to meals. If the medicine makes you dizzy or tired, taking it before bedtime might help. The extended-release (long-acting) doxazosin tablets should be taken in the morning with breakfast. Try to take your medicine at the same time every day. 



How quickly does doxazosin work?

It can take several weeks for doxazosin to have its full effects. Tell your doctor if you don’t notice any improvement in your urinary symptoms, such as frequency, hesitancy, urgency, weak stream, and dribbling, after taking doxazosin for 4 weeks or longer.



Is it safe to take doxazosin long term?

Long-term use of doxazosin is safe. This medicine can be used to prevent the worsening of symptoms caused by an enlarged prostate gland. If you are taking doxazosin for high blood pressure, you may need to take it lifelong.



Does doxazosin reduce prostate size?

No, doxazosin does not reduce prostate size or prevent further enlargement of the prostate gland. It only helps to control the urinary symptoms caused by an enlarged prostate.



Does doxazosin make you gain weight?

Weight gain can be one of the side effects of doxazosin in some people. Talk to your doctor about healthy lifestyle changes, including dietary modifications and increased exercise, if weight gain is a concern for you.



Is doxazosin similar to Viagra?

No, doxazosin is not similar to Viagra. Doxazosin (brand name Cardura) is an alpha-blocker and is used to treat benign prostatic hyperplasia (BPH) and high blood pressure. Viagra (generic drug sildenafil) is used to treat erectile dysfunction (ED) in men. Taking doxazosin and Viagra together can result in an additive blood pressure-lowering effect, causing dizziness and fainting. Give your doctor a full list of your medications before starting treatment with doxazosin.



What is the price of doxazosin without insurance?

Without insurance, doxazosin can be as high as $96.99, but with a free BuzzRx prescription discount coupon, you could pay as low as $11.22 for the most common version of this medication. Use the BuzzRx drug price look-up tool to find the lowest discounted price, and be sure to enter the correct dosage, form, and quantity for the most accurate pricing. While generics tend to have the best savings, you can also use your BuzzRx card and coupons to purchase brand-name versions. It never hurts to ask your pharmacist to try BuzzRx when filling or refilling any of your prescription drugs—whether you have insurance or not.



What is the price of doxazosin with insurance?

Ask your pharmacist or insurance provider for your copay price on doxazosin—Copay amounts vary depending on the type of insurance plan you have and if there is a deductible to reach before prescription drug coverage begins.

You could save up to 80% on your prescription medication with a free BuzzRx discount coupon for doxazosin. When using the BuzzRx lookup tool to find the price of your medicine, be sure to enter the correct dosage, form, and quantity to receive the most accurate discounted pricing. It never hurts to ask your pharmacist to try BuzzRx when filling or refilling any of your prescriptions—whether you have insurance or not.