It is important to ensure the chosen antibiotic is safe for the particular breed of dog as all breeds are affected differently, explains Pets Haven. Safe antibiotics for dogs inlcude cephalexin, penicillin, amoxicillin, Clavamox and Baytril. Each of these antibiotics work best for different conditions; make sure to read labels.
When giving dogs antibiotics, it is critical for the entire dose of the drug to be given, states Pets Haven. Stopping early due to positive changes inhibits the effectiveness of the antibiotic. A typical course of antibiotic treatment should last at least seven days but may last as long as 12 days.