My mom was sedated on versad and Femtenyl? for dental surgery, She was knocked out for 20 hours. We tried multiple times to wake her but she looked so happy to be sleeping so we just kept a watch on her until she finally
opened her eyes the next morning. It's been a week now and her mental state is still the same. She's still in La La land like before. I wouldn't say it's worse though. She does seem to be weaker in the legs so she's having trouble walking without a lot of assistance.
I think any drug is poison to the brain and body. If you started off normal anything can happen afterwards. You were essentially invaded so I'm not surprised if you end up worse off than before. Modern medicine. Don't get me started. It's the typical solution. Fix the problem and worry about the consequences later.