I am sorry your kitty is not feeling well.
When he was seen by his vet, were any tests (blood, urine, x-rays) run?
Did your kitty have any injuries?
Did your vet give you any kind of a diagnosis as to what may have caused his original symptoms?
Let me know and I will try to help....
The antibiotics were prescribed as a 'just in case' measure then?
Do you think your kitty has lost weight?
Any coughing or sneezing?
Bloody nose? Blood in urine? Diarrhea?
Standing by to help........
I assume antibiotics were just that since the cat was eating and drinking by the time I took him and had already improved.
Has gained weight - too much weight. He will eat constantly if allowed.
No, No, No