Oxybutynin, sold as under the brand names Ditropan among others, is a medication used to treat overactive bladder. It works similar to tolterodine, Darifenacin, and Solifenacin. While used for bed wetting in children, evidence to support this use is poor. It is taken by mouth or applied to the skin.
An anticholinergic approved for overactive bladder, with side effects including dry mouth, blurred vision, and a hallucinogenic “rush.” People try to “exacerbate” the hallucinogenic effect by taking the drug more often or at higher doses.
The drug can also be ground up and dissolved for injection, which can lead to injection-site tissue damage with repeated use. Often used in combination with bupropion or diphenhydramine.