I have heard of Iso but not the other one you mentioned. I have recently changed vets and she is using sevoflorine. It is used on geriactric patients and is a much gentler anethesia. They wake up pretty fast after surgery and not as groggy...this is what I am told. I haven't had the girls spayed yet...It's also a little more costly but, for safety sakes...I don't care.
__________________ Brenda |