Oxybutynin — Antimuscarinic (anticholinergic) bladder agent. Study the mechanism, listed uses and warnings from the US label on one sourced card.
Generic name
Oxybutynin
Class
Antimuscarinic (anticholinergic) bladder agent
Mechanism
Relaxes bladder smooth muscle by a direct antispasmodic effect and by inhibiting the muscarinic action of acetylcholine.
Used for
Overactive bladder with urge urinary incontinence, urgency and frequency; Symptoms of detrusor overactivity associated with a neurological condition in children aged 6 or older
Urinary retention, gastric retention or severe decreased gastrointestinal motility; uncontrolled narrow-angle glaucoma are contraindications; Angioedema; Anticholinergic CNS effects
Interactions
Other anticholinergic drugs; Prokinetic agents (metoclopramide)
Brand questions use only name pairings verified against the linked product source. Unverified pairings are withheld from these questions; the other study content remains available.
Label date: 20260624 · For learning, not clinical decisions. US label and brand information; always consult the current source.
Source snapshot checked: 2026-10-21. The source document and selected fields were compared. The complete card has not had an independent clinical review.
On both cards: Common side effects — Dry mouth; Constipation
Only on the Solifenacin card: Used for — Overactive bladder with urgency, urinary frequency or urge urinary incontinence in adults · Common side effects — Urinary tract infection; Blurred vision · Warnings — Angioedema and anaphylaxis; Urinary retention (outlet obstruction); QT prolongation in high-risk patients · Interactions — Strong CYP3A4 inhibitors (e.g., ketoconazole)
Mechanism: Activates beta-3 receptors, relaxing the detrusor during bladder filling and increasing bladder capacity.
On both cards: Common side effects — Headache · Warnings — Angioedema
Only on the Mirabegron card: Used for — Overactive bladder in adults with urgency, urinary frequency or urge incontinence; Neurogenic detrusor overactivity in children aged 3 or older who weigh at least 35 kg, for the cited extended-release tablets · Common side effects — Hypertension; Nasopharyngitis; Urinary tract infection · Warnings — Increased blood pressure; Urinary retention (outlet obstruction) · Interactions — Muscarinic antagonists for OAB
Mechanism: Excreted in urine, where it exerts a topical analgesic effect on urinary tract mucosa; exact mechanism unknown.
On both cards: Common side effects — Diarrhea; Headache
Only on the Phenazopyridine card: Used for — Lower urinary tract pain, burning, urgency · Common side effects — Nausea; Rash; Discoloration · Warnings — Renal insufficiency (contraindicated); Severe liver disease / hepatitis (contraindicated); Symptom relief does not replace diagnosis or treatment of the cause, including antimicrobial treatment when needed.; Use for a urinary tract infection should not exceed two days.
An item counts as shared only when both cards use the same wording. If a card does not list an item, that is not a statement that the effect never occurs.
Capsera