Oxybutynin is an anticholinergic medication used to relieve urinary and bladder difficulties, including frequent urination and inability to control urination (urge incontinence). It helps to decrease muscle spasms of the bladder. It antagonizes the muscarinic acetylcholine receptor. It is available orally in generic formulation and as the brand-names Ditropan® and Lyrinel XL®, and as a transdermal patch under the brand-name Oxytrol®.

Muscarinic antagonists