Sanctura

Trospium works by relaxing the detrusor muscle in the wall of the bladder. It does this by blocking receptors called muscarinic receptors that are found on the surface of the muscle cells. This prevents a natural body chemical called acetylcholine from acting on these receptors. Normally when acetylcholine acts on these receptors, it causes the detrusor muscle to contract and the bladder to empty. By blocking acetylcholine, trospium helps the muscle in the bladder wall to relax. This reduces unstable, involuntary contractions of the bladder, and thereby increases the capacity of the bladder to hold urine. In turn, this reduces the need to pass urine.