What Is Alfuzosin XR? Uses, Dosage, and What You Need to Know in 2026

Alfuzosin XR is a prescription medication used to treat benign prostatic hyperplasia (BPH) — commonly known as an enlarged prostate — in adult men. If you've recently been diagnosed with BPH or are evaluating treatment options, this guide covers the most important facts about Alfuzosin XR: what it does, how to take it correctly, what side effects to watch for, and how much it costs.

What Is Alfuzosin XR?

Alfuzosin XR (also written as alfuzosin ER or alfuzosin extended release) is the generic version of the brand-name drug Uroxatral. The active ingredient is alfuzosin hydrochloride, and it comes as a 10 mg extended-release tablet taken once daily. The drug belongs to a class called alpha-1 adrenergic blockers (alpha-blockers).

The FDA first approved alfuzosin in 2003 under the brand name Uroxatral. Today, it is widely available as an inexpensive generic from multiple manufacturers. Alfuzosin XR is not a controlled substance and is prescribed only for men — it is not approved for women or children.

What Is Alfuzosin XR Used For?

Alfuzosin XR is FDA-approved for the treatment of signs and symptoms of benign prostatic hyperplasia (BPH) in adult men. BPH is an enlargement of the prostate gland that is not caused by cancer. As the prostate grows, it can press on the urethra, causing urinary symptoms such as:

Weak or slow urine stream

Difficulty starting urination

Frequent urination, especially at night (nocturia)

Urgent need to urinate

Feeling that the bladder is not fully empty

Alfuzosin XR relaxes the smooth muscle in the prostate and bladder neck, reducing resistance to urine flow. It does not shrink the prostate — the prostate may continue to grow over time — but it significantly improves symptoms for most patients.

Alfuzosin XR Dosage: How to Take It Correctly

Standard dose: One 10 mg extended-release tablet once daily

Timing: Take immediately after the same meal each day — breakfast or dinner, whichever is easiest to remember. Consistency matters.

Do NOT take on an empty stomach: Absorption is approximately 50% lower when taken without food, which reduces effectiveness and increases blood pressure drop risk.

Swallow whole: Never crush, chew, or break the tablet. The extended-release coating controls how slowly the medication is absorbed — breaking it causes a dangerous rapid release.

No titration needed: Unlike some other BPH medications (doxazosin, terazosin), Alfuzosin XR is started at the full dose of 10 mg from day one — no dose increases are required.

How Long Does It Take to Work?

Some men notice improvement in urinary symptoms within the first 1-2 weeks of starting Alfuzosin XR. Full benefit typically develops over 4-12 weeks. If you see no improvement after 12 weeks at the correct dose, talk to your doctor about whether a different treatment is needed.

Who Should NOT Take Alfuzosin XR?

Women (not approved for female use)

Children and adolescents

Patients with moderate or severe liver disease (Child-Pugh B or C)

Patients taking potent CYP3A4 inhibitors (ketoconazole, itraconazole, ritonavir, cobicistat, and related HIV medications)

Patients already taking other alpha-1 blockers (tamsulosin, doxazosin, terazosin, silodosin)

How Much Does Alfuzosin XR Cost in 2026?

Generic Alfuzosin XR is an affordable medication when purchased with a discount coupon or through insurance:

Cash price (retail): $40-$115 for 30 tablets without a coupon

With GoodRx coupon: As low as $12 for 30 tablets

With SingleCare coupon: As low as $8.13 for 30 tablets

With insurance (Medicare Part D, commercial): Usually Tier 1; copay $0-$30 per month

For detailed savings strategies, read our post: How to Save Money on Alfuzosin XR in 2026. And to understand how this medication works at a biological level, check out our post on how Alfuzosin XR works.