Desfesoterodine is primarily used in the treatment of overactive bladder (OAB) syndrome. It helps to alleviate symptoms such as frequent urination, urgency, and urge incontinence by relaxing the bladder muscles. This action increases the bladder's capacity to hold urine and reduces the frequency of contractions, providing patients with better control over their bladder function. It is often prescribed when lifestyle changes and other non-pharmacological treatments have not been effective. The medication is typically administered orally and is part of a broader therapeutic approach that may include bladder training and dietary modifications. Desfesoterodine is valued for its ability to improve quality of life for individuals suffering from OAB by offering symptomatic relief and enhancing daily functioning.