I did about 6 years ago. The cat had a seizure, a big one, not hyperesthesia and was rushed to the ER. Within a couple of weeks he was blind from cryptococcus which I did not know that he had despite having taken him to the vet for clearance before I brought him into the house. He was a very sad street rescued adult, probably on his own for a long time. He was given atenolol for blood pressure but that was not the problem. Having said this, I doubt that your cat has cryptococcus and I mean I really doubt it.....no, Pangur did not survive. I see that you have another thread on the issue and that you have consulted the vet, so I am not going to add more here except to say that I hope that your cat is not faced with anything major.