NCIt definition : A competitive muscarinic receptor antagonist with muscle relaxant and urinary antispasmodic
properties. Fesoterodine is rapidly hydrolyzed in vivo into its active metabolite
5-hydroxy methyl tolterodine, which binds and inhibits muscarinic receptors on the
bladder detrusor muscle, thereby preventing bladder contractions or spasms caused
by acetylcholine. This results in the relaxation of bladder smooth muscle and greater
bladder capacity, in addition to a reduction in involuntary muscle contractions and
involuntary loss of urine. The active metabolite does not interact with alpha-adrenergic,
serotonergic, histaminergic and excitatory amino acid receptors and is eliminated
via renal excretion.;