Ask the vet - Cat
Are there any appetite stimulants available for cats?
Vet at FirstVet answers:
Yes, there are appetite stimulants that can be used in cats. However, one should first find out what is causing the poor appetite before administering any appetite stimulants. Often the appetite returns once the underlying disease has been successfully treated.
Appetite stimulants are mainly used in cats that have been treated for an underlying disease but still exhibit difficulty starting to eat again on their own.