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Antimuscarinic

Solifenacin 5 mg

Brand names: Vesicare

Solifenacin is an antimuscarinic used to treat the urgency, frequency and urge incontinence of overactive bladder.

Dosing — being independently re-sourced

ClinCalc Pro is rebuilding its dose data from primary open sources — the manufacturer SmPC (eMC), the WHO Model Formulary and other official references — under clinician review. This drug's structured dose is not yet published here. Confirm all doses against the product SmPC and your local formulary before prescribing.

US labelling (FDA)

Reference — US labelling, may differ from UK

• 5 mg tablet taken orally once daily, and if well tolerated may be increased to 10 mg once daily ( 2.1 ). • Do not exceed the 5 mg dose of solifenacin succinate tablets in patients with: • Severe renal impairment creatinine clearance <30 mL/min/1.73 m 2 ( 2.2 , 8.6 ). • Moderate hepatic impairment (Child-Pugh B). Solifenacin succinate tablets are not recommended in patients with severe hepatic impairment (Child- Pugh C) ( 2.3 , 8.7 ). • Concomitant use of strong CYP3A4 inhibitors ( 2.4 , 7.1 ). 2.1 Dosing Information The recommended oral dose of solifenacin succinate tablets is 5 mg once daily. If the 5 mg dose is well tolerated, the dose may be increased to 10 mg once daily. Solifenacin …

Source: US FDA prescribing information (openFDA / DailyMed), label dated 2026-01-28. Accessed 2026-06-12. US dosing and indications can differ from UK practice — use UK sources for prescribing decisions.

Clinical monograph

How it works

It blocks muscarinic (mainly M3) receptors on the bladder detrusor muscle, reducing involuntary contractions and increasing bladder capacity.

Prescribing in practice

  • Avoid in narrow-angle glaucoma, significant urinary retention and gastrointestinal obstruction.
  • Anticholinergic effects (dry mouth, constipation, blurred vision) are common, and it can prolong the QT interval; it may also precipitate urinary retention.
  • Be mindful of the cumulative anticholinergic burden, which affects cognition and falls risk, especially in older people.

Monitoring

Review symptom benefit and anticholinergic side effects after a few weeks, watch for incomplete bladder emptying, and consider QT risk in susceptible patients.

Counselling the patient

  • A dry mouth, constipation or blurred vision can occur — tell us if these bother you.
  • Seek help if you find it hard or impossible to pass urine.
  • If you are older, this type of medicine can affect memory or steadiness, so mention any new confusion or falls.

Evidence & guidelines

A recommended antimuscarinic option for overactive bladder in NICE guidance on urinary incontinence.

Reference: NICE NG123; STAR trial; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.