Logo
Doxazosin - Image 1

Doxazosin

No packages found
price-match-guarantee

Price Match Guarantee

We offer competitive pricing on all our medications. Find a lower price? We'll match it from any verified Canadian online pharmacy! Know More

Similar Medications

How to Order

Ordering your medication online is simple and convenient.

STEP 01

Select the prescribed dosage and quantity, then proceed to checkout.

STEP 02

Sign in or create a new account.

STEP 03

Upload your prescription.

STEP 04

Complete your purchase by processing the payment.

Shipping takes approximately 3-5 business days.

Our Pharmacy Reviews

Read what our customers have to say about their shopping experience.

Product Details

Description

Doxazosin belongs to a class of drugs known as alpha-1 adrenergic blockers, which ease symptoms of an enlarged prostate and manage elevated blood pressure. This prescription medication is often recommended for use in conjunction with other treatments for the long term. Its active ingredient, Doxazosin mesylate, is usually taken once daily, with or without food. Follow your doctor’s instructions carefully to avoid side effects, such as dizziness or low blood pressure, especially during the initial period of treatment with the drug or when making dosage adjustments. To order Doxazosin online from Canada, use your doctor’s prescription.

Generic NameDoxazosin
Brand NameCardura & Cardura XL
FormsOral Tablets & Extended-Release Oral Tablets
Strengths Available1 mg & 2 mg & 4 mg
Packaging
Requires PrescriptionPrescription only (Rx)
Ships to USAYes
Uses and Benefits

Doxazosin is prescribed to treat:

  • Hypertension
  • Heart failure
  • Raynaud’s disease
  • Benign prostatic hyperplasia

Benefits of Doxazosin

  • It relaxes blood vessels and effectively reduces blood pressure, thereby reducing the chances of heart attacks and strokes.
  • It improves urine flow by relaxing the muscles in the bladder and the neck of the prostate.
Dosage

The Doxazosin dosage for high blood pressure varies depending on the condition and strength of the tablets your doctor has prescribed for you. The typical dosage of Doxazosin includes:

Dosage of Doxazosin for Hypertension

Oral Tablets

  • Adults: The initial recommended dose is 1 mg once daily. The maximum daily dosage should not be more than 16 mg.
  • Children: Your doctor will determine the usage & dosage.

Dosage of Doxazosin for Benign Prostatic Hyperplasia

Oral Tablets

  • Adults: The initial dose is 1 mg once daily, in the morning or evening. Your doctor may increase the Doxazosin dosage to 8 mg once daily.

Extended-Release Tablets

  • Adults: The initial dose is 4 mg once daily, in the morning after a meal. Your doctor may increase the Doxazosin dosage to 8 mg once daily.
Usage Guide
  • Take Doxazosin extended-release tablets exactly as prescribed by your doctor, typically once daily in the morning, with food.
  • Swallow the Doxazosin tablet whole, without chewing, crushing, or breaking it.
  • You should not stop taking it abruptly without consulting your doctor, and avoid driving or hazardous activities until you know how it affects you.
  • Doxazosin does not cure hypertension or shrink the size of your prostate, but it does help relieve symptoms of this condition.
  • Let your doctor know if your condition does not improve or worsen.
How It Works

Doxazosin is a selective α₁‑adrenergic receptor blocker that relaxes the smooth muscle in both blood vessels and the prostate/bladder neck. By inhibiting norepinephrine from binding to post-synaptic α₁ receptors, it causes vasodilation, thereby reducing vascular resistance and lowering blood pressure. Additionally, it eases urinary flow in benign prostatic hyperplasia by decreasing muscle tone around the urethra. Its long half‑life supports once‑daily dosing, and it does not significantly affect heart rate or cardiac output.

Side Effects

Common Doxazosin side effects may include:

  • Bitter taste
  • Breathlessness
  • Dizziness
  • Edema
  • Sleepiness
  • Polyuria
  • Xerostomia

Serious side effects (rare):

  • Jaundice or liver issues
  • Easy bruising or bleeding
  • Serious allergic reaction

Note: Contact your medical provider if you experience any severe or unusual symptoms.

Warnings

Similar to other medications, Doxazosin also comes with certain warnings that people should keep in mind before using it. The key points of the warnings include:

  • Cataract Surgery: This medication can affect your pupils during cataract surgery. Inform your surgeon beforehand that you are taking Doxazosin.
  • Hypersensitivity Reaction: Do not take Doxazosin if you have ever had a hypersensitivity reaction to this medication or any of the ingredients present in the drug.
  • Orthostatic Hypotension: Some individuals may experience dizziness when standing up after being seated or lying down for an extended period.
Safety Guide

There are certain precautions that users should be aware of when using Doxazosin. These mainly include:

  • Medical History: Before using Doxazosin, you should share your medical history with your physician, especially if you have severe constipation, a blockage in your digestive tract, hepatic disease, or low blood pressure.
  • Pregnancy: It is still unknown if Doxazosin affects your unborn baby. Inform your doctor if you are pregnant, plan to get pregnant, or suspect a pregnancy before using Doxazosin.
  • Breastfeeding: The safety of Doxazosin for breastfeeding is not established. It is unknown whether Doxazosin passes into breastmilk or causes harm to a nursing baby. Tell your doctor if you are breastfeeding an infant while using this medication.
  • Alcohol Use: You should avoid consuming alcohol while using Doxazosin, as it can increase the risk of lightheadedness, dizziness, and fainting.
Missed Dose

If you miss a dose of Doxazosin, take it as soon as you remember. Skip the missed dose if the time to take your next scheduled dose is almost here. Do not take an extra dose of Doxazosin to make up for the missed dose.

Overdose

An overdose of Doxazosin can cause extreme dizziness or fainting. If you think you or someone has taken this medication more than the prescribed dose, seek medical assistance by calling the Poison Help line at 1-800-222-1222.

Storage Guide

To maintain the efficacy of the drug you are using, you should follow proper storage guidelines. For Doxazosin, follow the given instructions:

  • Store Doxazosin tablets in their original container at a controlled temperature, between 68°F and 77°F (20°C and 25°C).
  • You can expose it to slightly higher temperatures when transporting it from one place to another.
  • Store Doxazosin in a safe place, such as a medicine cabinet, out of the sight and reach of children and pets.
  • Do not keep this medication if it has expired. Dispose of it safely in a manner that prevents anyone from consuming it.
  • Ask your pharmacist or healthcare provider for instructions on how to dispose of it safely.
Interactions

Doxazosin can interact with certain medications, which may interfere with its mechanism of action or reduce the effectiveness of Doxazosin. To prevent and manage potential Doxazosin interactions, inform your doctor about all the products you are using. Some of the medications that may interact with Doxazosin include:

  • Alfuzosin
  • Asenapine
  • Boceprevir
  • Carvedilol
  • Celiprolol
  • Iloperidone
  • Labetalol
  • Levobunolol
  • Melphalan
  • Oxprenolol
  • Propranolol
  • Sildenafil
  • Silodosin
  • Tadalafil
  • Tamsulosin
  • Vardenafil
Alternatives

While Doxazosin is effective in treating benign prostatic hyperplasia & hypertension, it may not be suitable for all. In such cases, people look for alternatives to Doxazosin. These mainly include:

  • Flomax (tamsulosin)
  • Hydrochlorothiazide
  • Hytrin (terazosin)
  • Lisinopril
  • Losartan
  • Minipress (prazosin)
Cost & Coupons

Why Buy Doxazosin from Polar Bear Meds?

At Polar Bear Meds, we’re dedicated to making prescription medications like Doxazosin more accessible and affordable for individuals in the USA. Our prices are significantly lower than typical U.S. pharmacy retail rates, without compromising on safety, quality, or authenticity. All medications are sourced from fully licensed pharmacies and undergo strict prescription verification to ensure legal and medical compliance. We provide discreet, trackable shipping to all USA states and offer refill assistance for long-term treatment. Our friendly customer service team is here to support you every step of the way.

Cost & Coupons

Order Doxazosin from Canada and have it delivered straight to your doorstep in the U.S. You can also save more by using the coupon code “WELCOMEPB10” at checkout to get 10% off on your first order. There are no hidden handling or processing fees, as we believe in complete transparency. Looking to save even more? Join our referral program & get a $20 credit every time you refer a friend or a family member. Your referral will also get a $20 credit, so everyone wins. Additionally, after every 10 verified customers you refer, you'll receive a $100 bonus credit in your account as our way of saying thanks for spreading the word.

FAQ

Guarantee

AtPolar Bear Meds, your safety is our priority. Every order is dispensed from a fully licensed Canadian pharmacy following strict standards for quality, security, and patient care. To conveniently buy Doxazosin from Canada at a substantial cost, call us at 1-888-779-2193 toll-free.

Important Notice

The content provided on the Polar Bear Meds website serves to increase knowledge about healthcare products and medical conditions and is strictly for informational purposes. It should not replace professional medical advice. We urge you to consult with a qualified healthcare professional prior to utilizing any prescription or over-the-counter medication. Our platform grants access to an extensive array of products, sourced internationally, including Canada. We collaborates with a licensed pharmacy partner in Canada and trusted dispensing pharmacies globally. All affiliated fulfillment centers are accredited by the regulatory authorities of their respective countries.

Dr. Jackson Miller

Medically Reviewed by "Dr. Jackson Miller (M.D)"

Dr. Jackson Miller is a board-certified medicine physician & hospitalist. He is a healthcare professional with a strong background in patient care. With years of experience and a patient-first approach, he believes the foundation of good health is a patient who feels informed and empowered. He contributes to medical content review, drawing on his background in clinical practice and patient education. He focuses on presenting health information in a clear, accurate, and accessible way to help readers make informed decisions. His work emphasizes clarity, evidence-based guidance, and understandable explanations of medical topics.

Find Dr. Jackson Miller on:LinkedIn
Price matching guarantee certificate

We offer competitive pricing on all our medications. We'll match if you find a lower price on an identical product at a verified Canadian online pharmacy!

Eligibility Criteria:

  • The competitor's price must be active (no past/future sales).
  • It is only valid for Canadian online pharmacies with a verifiable address.
  • The product must match the strength, pack size, quantity, manufacturer & origin.
  • There are no price matches on used/expired medications.
  • You must submit your requests before placing an order.
  • We cannot adjust prices after purchase.
  • Request via live chat or phone before placing your order.

Need help? Call our friendly support team at 1-888-779-2193 or fill out the Contact Form