Oxybutynin
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Oxybutynin is an antimuscarinic agent that reduces detrusor muscle activity, relaxing the bladder and preventing the urge to void.
Oxybutynin is an antimuscarinic agent that reduces detrusor muscle activity, relaxing the bladder and preventing the urge to void.
Oxybutynin acts to relax the bladder by inhibiting the muscarinic action of acetylcholine on smooth muscle, and not skeletal muscle. The active of oxybutynin is metabolite is N-desethyloxybutynin. It competitively inhibits the postganglionic type 1, 2 and 3 muscarinic receptors. The above actions lead to increased urine capacity in the bladder, decreasing urinary urgency and frequency. In addition, oxybutynin delays the initial desire to void.
Oxybutynin is indicated for the symptomatic treatment of overactive bladder, which causes urge urinary incontinence and frequency, and urgency. Oxybutynin may also be used for children aged 6 and above for the symptomatic management of detrusor muscle overactivity which has been found to be related to a neurological condition. Spina bifida is an example of a neurological condition in which oxybutynin may be used to control urinary symptoms. On occasion, oxybutynin may be used off-label to relieve bladder spasms associated with ureteral stents or urinary catheters.
