This medicine treats symptoms of an overactive bladder.
The usual dose is one 4 mg capsule once a day. If you have kidney or liver issues, or bad side effects, your doctor might lower your dose to one 2 mg capsule once a day.
Swallow the capsule whole with water. Do not chew it.
The maximum daily dose is typically one 4 mg capsule. Your doctor might prescribe one 2 mg capsule if you have kidney or liver problems or significant side effects.