How to Stop Taking Alfuzosin (Uroxatral) Safely

You can stop alfuzosin, sold as Uroxatral, without tapering. There is no withdrawal syndrome and nothing for the body to wean off. What happens instead is that the symptoms it was controlling come back, usually within a few days, and for a minority of men the bladder stops emptying altogether. Whether stopping is reasonable depends almost entirely on why you started.

What alfuzosin does, and what happens when it stops

Alfuzosin is an alpha blocker, like tamsulosin. It relaxes the smooth muscle in the prostate and at the neck of the bladder so urine flows more easily. It does not shrink the prostate and does not change the condition underneath. Its effect lasts only as long as it is in your system, so once you stop, the stream weakens and night-time trips increase again over the next few days.

That return of symptoms is what people describe as withdrawal. It is not a reaction to stopping; it is the drug no longer doing its job.

If you started alfuzosin after urinary retention, do not stop on your own

This is the group where stopping has a measured cost, and it is the main way alfuzosin differs from the general advice on alpha blockers.

Alfuzosin is often started in hospital after an episode of acute urinary retention, when the bladder blocked completely and a catheter was needed. In the ALFAUR trial of 360 men in that situation, alfuzosin raised the share who could pass urine on their own once the catheter came out from 47.9 percent to 61.9 percent. Men who then succeeded were randomised again, to continue alfuzosin or switch to placebo for six months. On alfuzosin, 17.1 percent needed prostate surgery in that time. On placebo, 24.1 percent did, and most of those operations were emergency surgery after the retention came back.

The authors' conclusion was that alfuzosin should be continued beyond the acute phase. If retention is how your prescription started, any decision to stop belongs with your urologist, ideally after a review of prostate size, PSA and how much urine is left in your bladder after you go.

Who else should not stop without a urologist deciding

The same features that predict retention in men on any alpha blocker: a large prostate on examination or ultrasound, a high PSA, a weak flow rate, a large amount of urine left behind after voiding, any kidney problem attributed to the prostate, and any planned procedure in the coming weeks. Our tamsulosin article goes through these in more detail, and they apply equally to alfuzosin.

Why men want to stop alfuzosin

The reasons differ from tamsulosin, which matters for what to do instead.

Dizziness and low blood pressure on standing. Alfuzosin is less selective for the prostate than tamsulosin, so it acts more on blood vessels. Light-headedness on getting up, particularly at night, is the most common complaint. If you also take blood pressure medication, the effect can add up.

Ejaculation is usually not the reason. In a controlled study of healthy volunteers, alfuzosin caused no loss of ejaculation in anyone and its rate of reduced volume was close to placebo, while tamsulosin abolished ejaculation in about a third of men. Men often switch to alfuzosin precisely to avoid that problem. If you are on alfuzosin and have ejaculatory problems, something else is likely contributing and is worth investigating.

Symptoms that improved. Some men want to see whether they still need it. That is a reasonable experiment for men outside the higher-risk groups above.

How to stop

Tell your prescriber first, and say why. If the reason is dizziness, ask about switching to tamsulosin or silodosin, which affect blood pressure less, before stopping alpha blockers altogether. If the reason is that you are also on finasteride or dutasteride and want fewer drugs, the evidence favours dropping the alpha blocker rather than the other drug, as long as your symptoms were not severe to begin with.

Then simply stop. Alfuzosin comes as a 10 mg extended-release tablet taken once a day, and it cannot be meaningfully tapered: the tablet must not be split, crushed or chewed, because that releases the whole dose at once.

Choose a week when you are at home and able to pay attention, not a week of travel.

What to log for two weeks

Write down, once a day: how many times you got up at night, how long the stream took to start, and whether you felt you had emptied. Three numbers, written rather than remembered.

Restart and call your prescriber if night-time trips double, if the stream becomes noticeably weaker, or if you feel lower abdominal fullness with difficulty passing anything.

Go to an emergency department if you cannot pass urine at all for six to eight hours while your bladder feels full. That is acute retention and waiting does not resolve it.

Can you stop alfuzosin and start again?

Yes. There is no tolerance to overcome. If symptoms return and you restart, it will work again within days. Treat the first doses like starting from scratch, because the drop in blood pressure on standing is most pronounced at the beginning: take it straight after the same meal each day, as the label directs, and get up slowly at night.

Two things to keep in mind even after stopping

Cataract surgery. Alfuzosin, like tamsulosin, is associated with intraoperative floppy iris syndrome, a complication during cataract surgery. In a prospective study of 1,274 cataract operations, current use of alfuzosin was independently associated with it. Tell any eye surgeon you have taken an alpha blocker, even if you have stopped.

Interacting drugs. While you are on alfuzosin, strong CYP3A4 inhibitors such as ketoconazole, itraconazole and ritonavir must not be taken with it, because they raise its levels sharply. If one of these has been prescribed for you, that is a reason to talk to your prescriber about pausing or switching, not to stop on your own.

What to do instead

If dizziness is the problem, switch alpha blockers. If you want fewer pills and your prostate is enlarged, a 5-alpha-reductase inhibitor protects against retention and surgery over the long term, and the alpha blocker can often be dropped after six to twelve months. If you want off daily drugs entirely, minimally invasive procedures such as UroLift and Rezum are worth asking about. Supplements with trial evidence, such as beta-sitosterol and rye grass pollen, help modestly at best and are not a replacement for an alpha blocker in a man who has had retention.