(1)Pharmacology Cefadroxil is the first generation of oral cephalosporin, there are good anti-bacterial function. (2)Toxicity It is with the little toxic. Administer 12600mg/kg to baby mouse, which will not lead to death.; administer 600mg/kg daily orally to the dog, and administer 1000mg/kg daily orally to mouse, continue 6 months, there isn't toxic reaction for the tissues and organs.