alfuzosin vs phenazopyridine
Side-by-side comparison of alfuzosin and phenazopyridine Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Uroxatral
Pyridium, AZO
Alfuzosin is a medicine that helps men with enlarged prostate glands. It relaxes the muscles in the prostate and bladder, making it easier to urinate.
Phenazopyridine is a medicine that can relieve urinary pain. It helps with discomfort caused by irritation or infection in your urinary tract.
This medicine treats the symptoms of benign prostatic hyperplasia (BPH), also known as an enlarged prostate. BPH can cause problems with urination, such as difficulty starting or stopping, frequent urination, and feeling like you can't empty your bladder. Alfuzosin helps to improve these symptoms.
This medicine treats pain, burning, and the need to urinate often. It also helps with other discomforts from irritation in the lower urinary tract. This irritation can be caused by infection, trauma, surgery, or procedures using instruments like catheters. Remember that this medicine only treats the symptoms, so you still need to treat the underlying cause of the problem.
Alfuzosin belongs to a class of drugs called alpha-1 blockers. It works by relaxing the muscles in the prostate and bladder neck. This relaxation allows urine to flow more freely, relieving the symptoms of BPH.
Phenazopyridine has a direct pain-relieving effect on the urinary tract. It works locally to quickly reduce burning and pain. It does not treat the cause of the infection or irritation.
- • Dizziness
- • Upper respiratory tract infection
- • Headache
- • Fatigue
- • Headache
- • Rash
- • Itching
- • Upset stomach
- The medicine is not working 112
- Using the medicine for something it's not approved for 96
- Difficulty breathing 89
- The medicine is interacting with another medicine 87
- Tiredness 87
- Long-term kidney disease 392
- Feeling sick to your stomach 296
- Aches or soreness 294
- Bladder infection 281
- Sudden kidney damage 266
Alfuzosin can cause your blood pressure to drop suddenly when you stand up, leading to dizziness or fainting. Be careful when standing up quickly, especially when you first start taking this medicine. If you have chest pain (angina), tell your doctor immediately. This medicine may also affect your heart rhythm. Tell your doctor if you have a history of heart problems.
You should not take this medicine if you are allergic to it. Also, you should not take it if you have kidney problems.
This medicine is only for men and is not intended for use in women. It is not known if alfuzosin can harm an unborn baby or pass into breast milk.
It is not known if this medicine will harm an unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant. It is also not known if this medicine passes into breast milk, so talk to your doctor if you are breastfeeding.
How to Read This alfuzosin vs phenazopyridine Comparison
alfuzosin is classified in the Alpha-1 Blocker (BPH) drug class, while phenazopyridine sits within the Urinary Analgesic class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are split between OTC and prescription status, which affects access and supervision.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, alfuzosin has 471 submissions while phenazopyridine has 1,529. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between alfuzosin and phenazopyridine — always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.