Oxybutynin is primarily used to treat symptoms of an overactive bladder, such as urinary incontinence (loss of bladder control), frequent urination, and urgent need to urinate. It works by relaxing the bladder muscles, which helps reduce muscle spasms and the frequent urge to urinate caused by these spasms

. It is also used to manage neurogenic detrusor overactivity, a bladder condition caused by nerve problems such as spina bifida or other nervous system disorders affecting bladder control. In children aged 6 years and older with such neurological conditions, oxybutynin helps control bladder muscles

. Besides its FDA-approved uses, oxybutynin is sometimes used off-label to treat excessive sweating (hyperhidrosis) and to control bladder spasms caused by catheters or ureteral stents

. Oxybutynin is available in various forms, including immediate-release tablets, extended-release tablets, syrup, and topical patches or gels

. In summary, oxybutynin is mainly prescribed to manage overactive bladder symptoms by reducing bladder muscle spasms and improving bladder control.