Alfuzosin is in a group of drugs called alpha-adrenergic blockers. Alfuzosin helps relax the muscles in the prostate and bladder neck, making it easier to urinate.

Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor.

Take each dose with a full glass of water. Alfuzosin should be taken just after eating food. Take the medication after the same meal each day. Do not take it on an empty stomach. Do not crush, chew, or break an extended-release tablet. Swallow the pill whole.

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using Alfuzosin and call your doctor at once if you have any of these serious side effects:
new or worsening chest pain;
fainting;
penis erection that is painful or lasts 4 hours or longer.
Talk to your doctor if you have any of these less serious side effects:
dizziness or drowsiness;
tired feeling;
headache;
diarrhea;
sore throat, cough, runny or stuffy nose.

Tell your doctor if you use any of the following medicines:
ritonavir (Norvir);
atenolol (Tenormin);
diltiazem (Cardizem, Dilacor XR, Diltia XT, Tiazac);
cimetidine (Tagamet);
any other medicine to treat high blood pressure or prostate problems.

Seek emergency medical attention if you think you have used too much of this medicine.
Symptoms of an Alfuzosin overdose may include weakness, dizziness, a fast but weak pulse, cold or clammy skin, and feeling light-headed or fainting.

Alfuzosin can affect the pupils of your eyes during cataract surgery. If you have cataract surgery during your treatment with Alfuzosin, tell the surgeon ahead of time that you are taking this medication.

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.

Alfuzosin is used to treat benign prostatic hyperplasia (enlarged prostate).
It may also be used for other purposes; please check with your physician.

Store Alfuzosin at room temperature away from moisture and heat.

Do not use Alfuzosin if you have:
severe liver disease;
if you are also using ketoconazole (Nizoral), itraconazole (Sporanox), or ritonavir (Norvir).

Before taking Uroxatral, tell your doctor if you have:
prostate cancer;
liver disease;
kidney disease;
a personal or family history of a heart rhythm disorder called Long QT syndrome;
angina (chest pain);
coronary artery disease (such as arteriosclerosis);
low blood pressure;
if you are taking another alpha-blocker such as terazosin (Hytrin), prazosin (Minipress), doxazosin (Cardura), or guanadrel (Hylorel) for high blood pressure or prostate problems;
if you are taking an antifungal medicine such as ketoconazole (Nizoral) or itraconazole (Sporanox); or
if you are taking certain medicines to treat HIV or AIDS.