Clavamox is a broad spectrum antibiotic, a combination of amoxicillin and clavulanic acid, which is commonly used for kidney infections, dental infections, and abscesses, among other infections in cats. These tablets are 62.5 mg and usually given twice daily. Clavamox also comes in liquid form if your cat takes liquid easier.
Side effects include vomiting and diarrhea. If side effects occur, the medication should be discontinued.