Mild side effects of ciprofloxacin in dogs include diarrhea or loose stool, vomiting, dizziness, drowsiness, blurred vision, joint stiffness or muscle pain. If these symptoms develop, continue treatment and consult your veterinarian.
Serious side effects of ciprofloxacin in dogs include seizures, convulsions, confusion, depression, sudden pain, swelling near or of the joints, nausea, low fever, loss of appetite, dark urine, yellowing of the eyes or skin, more or less urination than usual, or diarrhea that is watery or bloody. If your dog develops these side effects, immediately discontinue ciprofloxacin treatment and consult your veterinarian.
Swelling and Lameness
In young animals, ciprofloxacin may cause damage to the cartilage of the joints.This can lead to swollen joints and lameness, and because of this, puppies, especially those between four and 28 weeks, should not have the drug.
Allergic reactions to ciprofloxacin in dogs include difficulty breathing, closing of the throat, swelling of the lips, tongue or face, or hives. If your dog displays these signs, immediately discontinue treatment and seek emergency veterinary attention.
Consult veterinarian about all drugs your dog is currently taking before beginning ciprofloxacin treatment. Ciprofloxacin may interact with warfarin, theophylline, probenecid, insulin or oral diabetes medication. It may also interact with NSAID arthritis medication.