Cats do not need to be given deworming medication on an empty stomach. Kittens should be dewormed once a month, and adults once every three months. Broad-spectrum dewormers are generally preferred as they can kill roundworms, hookworms, and tapeworms. Deworming medication must be purchased from reputable sources and administered according to the prescribed dosage. If worms are found in the stool after administering deworming medication, the cat should be taken to a veterinarian immediately to determine a further deworming plan. 
Precautions for deworming cats:
1. After deworming, carefully observe your cat's mental state. After deworming, some cats with weak digestive systems or poor health may experience symptoms such as vomiting, lethargy, or even fever. These symptoms usually improve within 1-2 days. If these symptoms persist for several days, it is best to consult a veterinarian.
2. Deworming your cat should be done regularly, about once a month. Cats are the definitive host for many parasites. Depending on the type of parasite, some have a life cycle of half a month, while others only last a week. Therefore, deworming once a month is absolutely necessary.
3. Dosage of deworming medication for cats. Deworming medication is toxic, so it is essential to administer it according to the instructions, especially for domestically produced deworming medications. Always weigh your cat before administering the medication and calculate the dosage based on their weight. Sometimes there may be leftover medication; if you feel it's wasteful, you can give it to stray cats.
