Hi NoahsMommy,

If Emily requires the pill form of a medicine I crush it up (like your vet suggested), but I mix it in with smelly wet cat food (seafood flavours work the best for Emily).

Chlorpheneramine does come in a liquid form for humans. It is probably a little sweet for cats, but if you mix it with wet food it will help mask the flavour of it. Go to your local pharmacy and the pharmacist should be able to help you out to convert the dose. If they don't feel free to PM me and I will help you.