I have had to leave him at the vets for emergency treatment, they have warned me that although they see this quite often it can prove fatal. I gave him the dosage at 11pm last night and this morning he is sweating, panting and breathing really fast.
They are going to wash off the rest of the product, sedate him, give him steroids and do bloods.
Has anyone had a reaction like this before from their cat and did it all turn out OK.
I am a little distraught about it all.