Fesoterodine, Its Active Metabolite, and Tolterodine Bind Selectively to Muscarinic Receptors in Human Bladder Mucosa and Detrusor Muscle

Fesoterodine and 5-HMT bind to the muscarinic receptors with greater affinity in the human bladder mucosa and detrusor muscle than in the parotid gland in a competitive and reversible manner.