Seek emergency veterinary aid if your pet experiences an allergic reaction such as, hives, difficulty breathing, swelling of the face, lips, tongue or throat, blood in the urine, pain when urinating, a rash, eye irritation, fever, chills or joint aches or severe nausea or vomiting. Consult veterinarian if your pet experiences upset stomach or diarrhea, dizziness or drowsiness or an acute attack of arthritis, or anything out of the ordinary.
Ampicillin or amoxicillin may increase the risk of rash development. Notify your veterinarian if your pet is being given a thiazide diuretic, azathioprine, drugs used to treat cancer, cyclosporine, warfarin or theophylline. Consult to your veterinarian before administering additional prescription or over the counter medications.