Oxybutynin

Oxybutynin is an anticholinergic medication used to relieve urinary and bladder difficulties. (In Vitro) :Oxybutynin (0.1, 0.3, 1, 3, 10, 30, 100 μM; 200 ms) inhibits vascular Kv channels in a concentration-dependent manner independent of anticholinergic effect in coronary arterial smooth muscle cells. (In Vivo) :Oxybutynin (27.2 mg/kg; p.o.; single) exhibits significant binding of mouse brain muscarinic receptors that about a 2-fold increase in Kd values for specific [3H]N-methylscopolamine binding 0.5 and 2 h later.