Solifenacin is a medication used to treat overactive bladder symptoms such as urinary frequency, urgency, and incontinence. It works by blocking the activity of a neurotransmitter called acetylcholine, which is involved in the contraction of the bladder muscles. By reducing the activity of acetylcholine, solifenacin helps to relax the bladder muscles, which can reduce the frequency and urgency of urination and decrease the likelihood of incontinence. Solifenacin is available in both immediate-release and extended-release formulations, and is typically taken orally once per day. It is important to follow the dosage instructions provided by a healthcare provider, as well as any other guidance or precautions related to the use of this medication.