Cefadroxil 500 Mg Tablet is a drug that is used to treat bacterial infections throughout the body. It's a cephalosporin antibiotic, which means it's a type of antibiotic. It works by either killing or stopping germs from growing. This drug, however, will not help with colds, flu, or other virus infections. Take this medicine by mouth, once or twice a day, with or without food, as instructed by your doctor. If stomach trouble develops, use this medication with food.