is oxybutynin 5 mg a cholinesterase inhibtor? I was in the E.R. with systems of a stoke......I returned home after every thing was normal. But I took medicines around noon & feel woozy & confused now........it s now 3:40 p.m. I m currently taking tolterodiine tartrate (replacing oxybutynin), losartan/HCTZ, pravastasin sodium, donepzil , & a baby aspirin, & Vitamin D. I also take premarain 3 times weekly.