What to do when you give your cat too much flea medicine?

Monitor the cat closely. Check for any signs of discomfort or illness, such as vomiting, diarrhea, or excessive scratching. If you observe any of these, contact a veterinarian immediately.

Reduce the dose of flea medicine. If the cat is showing signs of discomfort, reduce the dosage and check the cat again in a day.

Give the cat plenty of water. Provide plenty of water to ensure that the cat is properly hydrated.

Contact your veterinarian. If the cat's symptoms persist, contact your veterinarian for professional advice and guidance.