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Published on: 10/26/2026
Vesicare (solifenacin) commonly causes dry mouth, constipation, and blurred vision because it blocks the same nerve signals that drive overactive bladder, and in some people, especially older adults, it may also contribute to confusion, memory lapses, or brain fog. Dose, how long you have taken it, kidney or liver function, and other anticholinergic medications you use all change how likely and how serious these effects become, so there are several important factors to consider before assuming your symptoms are harmless or permanent. Certain warning signs, including severe constipation with abdominal pain, inability to urinate, rapid heartbeat, or sudden disorientation, need prompt medical attention rather than watchful waiting. See the details below to understand which effects typically fade, which ones tend to persist, and when a medication review makes sense.
If you are unsure whether your dry mouth, bowel changes, or memory concerns are drug related or something else entirely, a free, instant, online symptom check can help you organize your symptoms and understand which next steps and questions to raise with your prescriber.
Last reviewed for medical accuracy: 10/22/2026
Vesicare Side Effects: Dry Mouth, Constipation and Memory Questions
Vesicare (generic name: solifenacin) is a prescription medication commonly used to treat overactive bladder symptoms such as frequent urination, urgency and leakage. As with any drug, Vesicare side effects can occur. Understanding what to expect—and when to seek help—can help you use the medication safely and comfortably.
Vesicare belongs to a class of drugs called antimuscarinics (or anticholinergics). It relaxes the smooth muscles of your bladder by blocking a neurotransmitter (acetylcholine). This reduces unwanted bladder contractions and gives you more control over urination.
Because it affects cholinergic pathways throughout the body, Vesicare’s impact isn’t limited to your bladder. Some of the most common side effects involve the mouth, digestive tract and even cognitive function.
Dry mouth (xerostomia) is one of the most frequently reported side effects. This happens because salivary glands require acetylcholine to produce saliva, and Vesicare inhibits that signal.
Signs you may notice:
Tips to manage dry mouth:
Anticholinergic drugs can slow gastrointestinal motility, leading to constipation. If your bowel movements become less frequent or stools become hard and difficult to pass, you may be experiencing this side effect.
Ways to ease constipation:
While dry mouth and constipation are the most common, Vesicare can sometimes cause:
Most of these are mild to moderate and may improve over the first few weeks as your body adjusts. If they persist or worsen, discuss them with your healthcare provider.
There is growing interest in the potential cognitive effects of anticholinergic medications, especially in older adults. Acetylcholine is important for memory, attention and learning. Blocking its activity in the brain can, in some cases, lead to:
Most people taking Vesicare do not experience significant cognitive changes. However, if you or a loved one notices new memory issues, increased forgetfulness or mental fog, it’s important to:
While most side effects are manageable, some symptoms warrant prompt medical attention:
If you experience any of these, contact your doctor right away or seek emergency care.
To get the most benefit from Vesicare while minimizing side effects:
Not sure if your symptoms are related to Vesicare? You might consider a free, online symptom check, using the doctor approved Ubie Symptom Checker. This tool can help you sort through symptoms and decide if you need to see a healthcare professional.
Always keep an open dialogue with your healthcare provider. Bring up any concerns about Vesicare side effects, including:
Together, you can weigh the benefits of symptom relief against any potential side effects. Your doctor may adjust your dose, suggest lifestyle strategies or explore alternative treatments.
Your comfort and safety matter. If Vesicare side effects become problematic, don’t hesitate to reach out to your healthcare team for guidance and support.
(References)
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* Ramsay S, Bolduc S. Overactive bladder in children. Can Urol Assoc J. 2017 Jan-Feb;11(1-2Suppl1):S74-S79. doi: 10.5489/cuaj.4337. PMID: 28265325; PMCID: PMC5332242.
* Solifenacin. 2006. PMID: 30000729.
* Quarracino C, Otero-Losada M, Capani F, Pérez-Lloret S. State-of-the-art pharmacotherapy for autonomic dysfunction in Parkinson's disease. Expert Opin Pharmacother. 2020 Mar;21(4):445-457. doi: 10.1080/14656566.2020.1713097. Epub 2020 Jan 20. PMID: 31957505.
* Vibegron (Gemtesa) for overactive bladder. Med Lett Drugs Ther. 2021 May 3;63(1623):67-69. PMID: 33976098.
* Welk B, Richardson K, Panicker JN. The cognitive effect of anticholinergics for patients with overactive bladder. Nat Rev Urol. 2021 Nov;18(11):686-700. doi: 10.1038/s41585-021-00504-x. Epub 2021 Aug 24. PMID: 34429535.
* Drugs for benign prostatic hyperplasia. Med Lett Drugs Ther. 2022 May 2;64(1649):65-69. PMID: 35471226.
* Drugs for overactive bladder. Med Lett Drugs Ther. 2023 Mar 20;65(1672):41-45. doi: 10.58347/tml.2023.1672a. PMID: 36897601.
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