Temaril-P contains the active ingredients trimethoprim and prednisolone, which are both potentially toxic to cats. Trimethoprim can cause kidney damage and bone marrow suppression in cats, while prednisolone can lead to a variety of side effects such as increased thirst, urination, and appetite, as well as liver damage and pancreatitis.
If your cat is experiencing allergy symptoms, it is important to take them to the vet for proper diagnosis and treatment. Never give your cat any medication that is not specifically prescribed for them by a vet.