[Anticholinergic agents for overactive bladder syndrome: current head-to-head comparison].

Overactive-bladder syndrome is characterized by the symptoms pollakisuria, nocturia and urgency with and without urge incontinence. The primary diagnostic procedure includes noninvasive or minimally invasive techniques. Antimuscarinic drugs lead within the therapeutic cascade. Only after unsuccessful use of several antimuscarinics should further treatment options such as electromotive drug administration or infiltration of the detrusor muscle with botulinum toxin A be discussed. The presented review article tries to give an overview by including the existing head-to-head-studies in this field.