商品名：Ditropan
Anticholinergic agent. Oxybutynin produces an anticholinergic effect via blockade of muscarinic receptors. It will produce a general anticholinergic effect, but the predominant effect is on the urinary bladder. It inhibits smooth muscle spasms via blocking action of acetylcholine. It does not block skeletal muscle, autonomic ganglia, or receptors on blood vessels. A related drug used in people is tolterodine (Detrol).
Oxybutynin chloride has been used primarily to increase bladder capacity and to decrease spasms of the urinary tract. In people it is used to treat urinary incontinence, but the use in animals is not common.
劑量數字暫停提供：VetPro 的劑量改依 DRUGAPI 藥物資料庫對外的內容，DRUGAPI 目前不提供可直接計算的劑量。下方列出 DRUGAPI 的審查結論與劑量審查引用的來源；計算機可手動輸入劑量換算。
必須先確認逼尿肌過度活動／膀胱痙攣、排除阻塞與排空障礙，並核對 IR／ER／口服液、物種證據、交互作用與監測；貓方案證據弱且情境衝突，不提供通用自動計算。
DRUGAPI 劑量審查引用的獸醫官方標示（各標示只適用於其產品、物種與法域，不可互換）
依出現頻率分組；嚴重副作用獨立列出，臨床上需立即辨識。
renal