Solifenacin (VESIcare) is used to treat overactive bladder (a condition in which the bladder muscles contract uncontrollably and cause frequent urination, urgent need to urinate, and inability to control urination). Solifenacin (VESIcare LS) is used to treat neurogenic detrusor overactivity (a bladder control condition caused by brain, spinal cord or nerve problem) in children 2 years of age and older. Solifenacin is in a class of medications called antimuscarinics. It works by relaxing the bladder muscles.
Solifenacin comes as a tablet (VESIcare) and a suspension (liquid; VESIcare LS) to take by mouth. Solifenacin tablets are usually taken once a day with or without food. Solifenacin suspension (VESIcare LS) is usually taken once a day. To help you remember to take solifenacin, take it at around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take solifenacin exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Summary from MedlinePlus.gov, click for more information.
