Doses - CEFADROXIL
Dogs: 
For susceptible infections: a) 22 mg/kg PO bid. Treat skin and soft tissue infections for at least 3 days, and GU infections for at least 7 days. Treat for at least 48 hours after animal is afebrile and asymptomatic. Reevaluate therapy if no response after 3 days of treatment. Maximum therapy is 30 days. (Package Insert; Cefa-Tabs®¯Fort-Dodge).
b) 11 - 33 mg/kg PO q8h (Aronson and Aucoin 1989)
c) 20 mg/kg PO bid (q12h) (Morgan 1988), (Jenkins 1987a)
d) 22 mg/kg PO q8-12h; administer with food if GI upset occurs (Vaden and Papich 1995)
Cats: 
For susceptible infections: a) 11 - 33 mg/kg PO q8h (Aronson and Aucoin 1989)
b) 22 mg/kg PO q8-12h; administer with food if GI upset occurs (Vaden and Papich 1995)
c) 10 mg/kg PO q12h (Davis 1985)
d) 20 mg/kg PO q12-24h (Jenkins 1987a)
Dosage Forms/Preparations/FDA Approval Status/Withholding Times - Veterinary-Approved Products:
Cefadroxil Oral Tablets 50 mg, 100 mg, 200 mg, 1 gram; Cefa-Tabs® (Fort-Dodge); (Rx)
Approved for use in dogs and cats
Cefadroxil Powder for Oral Suspension 50 mg/ml in 15 ml and 50 ml btls;Cefa-Drops ® (Fort-Dodge) (Rx)