Bethanechol is a direct-acting parasympathomimetic that selectively stimulates muscarinic receptors in smooth muscle, restoring coordinated bladder emptying when detrusor tone is inadequate.
Bethanechol is a quaternary ammonium choline ester that selectively activates muscarinic M2 and M3 receptors. By stimulating phospholipase C, it increases inositol trisphosphate and intracellular calcium in detrusor smooth muscle, producing bladder contractions without significant nicotinic or central nervous system activity.
Half-life
Not specified
Primary Route
Not specified