Hi speterson,

Welcome to the group! I am very sorry to hear your Dad is going through such a difficult time, but glad he's been diagnosed. I was thinking the same thing as Joanmarie. Do you know how much Mestinon he was taking for the week it was working so well? Do you know if they have decreased the dosage? Just from my own experiences and others here, there is a chance he was getting too much Mestinon. Was he having any side effects such as excessive saliva that may have caused him to choke? This is just a thought, I am not a doctor. It's good he is in the hospital and I'm sure they will figure everything out and put him on the correct meds. I will be keeping good thoughts. Please let us know how he's doing. Take care

Hugs,
Pat