Oxybutynin is an anticholinergic medication widely used to treat overactive bladder and urinary incontinence by reducing involuntary bladder muscle contractions. Developed in the 1960s and introduced clinically in the 1970s, it became one of the first effective oral therapies for bladder instability. Over time, newer formulations including extended-release tablets, transdermal patches, and topical gels were created to improve tolerability and reduce common side effects such as dry mouth. Today, oxybutynin remains a widely used and well-established treatment option, valued for its long history of effectiveness in managing urinary urgency, frequency, and urge incontinence.