I would find a new vet if you are not comfortable with the one you saw, they can prescribe a sedative that you can give one hour prior to the appointment. Get his medical records and confirm what he got before that didn’t work.
You may want to invest in a muzzle…it only takes a moment for things to go south.
As I mentioned before, some anti-anxiety meds/antidepressants take at least a couple of weeks or more to show results.
Maybe you didn’t give it long enough? Assuming something was prescribed for his anxiety, long term, not just for 1 vet visit.
It’s best to stay with the same vet if possible.
