Solifenacin

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Reviewed on Apr 09, 2026. by Mr Craig Marsh Independent Prescriber Registered with GPhC (No. 2070724) Next review due on April 09, 2029.

Last updated on Apr 09, 2026.

Product info

Solifenacin treats overactive bladder, reducing frequent urination, urgency, and leaks.
It works by relaxing bladder muscles, allowing for better bladder control.
It’s available in 5mg and 10mg tablets.

Price checker

Prices include:

Express shipping
24 hour shipping by secure courier.
Consultation + Access to our clinicians
Ask our experts anything you like, any time you want.
Total
£24.95

Save £0.00 each order

Solifenacin: essential info
Solifenacin: instructions
Important stuff you need to know
FAQ

What Is Solifenacin?

Solifenacin tablets are used to treat an overactive bladder, which can cause urinary incontinence. The tablets contain the active ingredient solifenacin succinate. They’re a type of medicine called antimuscarinics, which are a kind of anticholinergic.

An overactive bladder (OAB) isn’t a disease – it’s a collection of urinary symptoms. The most common symptom you’re likely to experience is a sudden, uncontrollable urge to use the bathroom. If you also leak urine when you get this urge, it’s called urinary incontinence. The two are different, but can be linked.

How does Solifenacin work?

Antimuscarinics like Solifenacin work by preventing a neurotransmitter called acetylcholine from binding itself to the M2 and M3 muscarinic receptors.^[1] These receptors are responsible for contracting the bladder during urination, and blocking them should help keep your overactive bladder under control.^[2]

What doses of Solifenacin are there?

There are two different Solifenacin doses: Solifenacin 5 mg tablets and Solifenacin 10 mg tablets. You’ll usually start by taking Solifenacin 5 mg tablets, and only move to 10 mg if your clinician advises you to. Taking the lowest dose of Solifenacin that keeps your bladder under control will minimise any risk of side effects.

Treated trusted sources:

Staskin, D.R., MacDiarmid, S.A. (2006) Using anticholinergics to treat overactive bladder: the issue of treatment tolerability. The American Journal of Medicine. vol. 119, no 3. pp. 9-15.
Hedge, S.S., et al. (1997) Functional role of M2 and M3 muscarinic receptors in the urinary bladder of rats in vitro and in vivo. British Journal of Pharmacology. vol. 120, no. 8. pp. 1409-1418.
EMC (2019). Package leaflet: Information for the user. Solifenacin 5 mg film-coated tablets, Solifenacin 10 mg film-coated tablets: Solifenacin succinate.

This page was written by The Treated Content Team.

This page was medically reviewed by Mr Craig Marsh on April 09, 2026. Next review due on April 09, 2029.

How we source info.

When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.

FAQ: Solifenacin

Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.

How effective is Solifenacin?

Answer:

Solifenacin has proven to be an effective treatment for an overactive bladder in clinical studies. In one trial, 503 people were given Solifenacin starting at 5mg (which could be increased to 10mg if needed), and 206 were given placebo. Those on Solifenacin found that they needed to urinate less frequently, urgently, and had fewer urge incontinence leaks when compared with those on placebo. Urgency bother was also reduced by 42.4%, and there was an increased level of treatment satisfaction on Solifenacin.^[1]

Does Solifenacin cause weight gain?

Answer:

Solifenacin shouldn’t cause you to gain any weight. However, there’s a small chance it can make you feel less hungry – which can cause weight loss. If you’re worried about your weight while taking Solifenacin, speak with your clinician.

Can you get Solifenacin side effects?

Answer:

There’s a chance you can get some Solifenacin side effects, the same as with any medicine. But they don’t affect everyone.

There have been reports of angioedema, a skin allergy that causes swelling in the tissue below the skin’s surface, that can also obstruct breathing. If you get any of these symptoms, stop using Solifenacin straight away and get medical attention. Likewise, if you have any kind of allergy attack or skin reaction, speak to your doctor or pharmacist immediately.

The most common side effects of Solifenacin are:

dry mouth;

blurred Vision;

constipation;

nausea; and:

indigestion, abdominal pain, burping, and heartburn.

If you want a full list of Solifenacin side effects, take a look at the patient information leaflet.

Who is Solifenacin for?

Answer:

There are some Solifenacin warnings you should be aware of, because it isn’t suitable for everyone. Let your clinician know if you:

have had trouble emptying your bladder or passing urine;

have an obstruction of your digestive system (like constipation)

are at risk of your stomach and bowel movements slowing down;

have severe kidney disease;

have a hiatus hernia or heartburn; or:

have a nervous disorder (autonomic neuropathy).

Are there any alternatives to Solifenacin?

Answer:

If you’re looking for a treatment similar to Solifenacin, you can get other antimuscarinic treatments for an overactive bladder. These include:

Oxybutynin (also sold under the brands Ditropan, Lyrinel, and Kentera);

Tolterodine (also sold under the brand names Blerone, Detrol, Detrusitol, Inconex, Mariosea, Neditol, Preblacon, and Santizor); and:

Darifenacin (also sold under the brand name Emselex);

These all work in the same way as Solifenacin – but if you get side effects on one type of antimuscarinic, switching to a different one could help. While there is a small difference in how well these different treatments have performed in clinical trials, it isn’t enough to affect how they work in practice; many clinicians consider them all comparable in terms of how effective they are.[popover id=ref6]

Treated trusted sources:

Basra, R., Kelleher, C. (2008). A review of solifenacin in the treatment of urinary incontinence. Therapeutics and Clinical Risk Management. vol. 4, no. 1. pp. 117-128.