Baytril is a veterinarian-prescribed medication that contains the active ingredient enrofloxacin, a type of antibiotic 1. This medication is indicated to treat certain bacterial infections in both cats and dogs. Baytril is a part of a class of drugs called fluoroquinolones, and works by preventing bacteria from replicating in the body of an infected cat or dog. Pet owners should discuss Baytril side effects with a veterinarian before administering this medication to their pet.

Diarrhea or Upset Stomach

Dogs or cats treated with Baytril may develop diarrhea as a side effect of this medication, reports. Affected pets may use the litter box more frequently than usual or may need to be taken for more walks due to frequent, urgent bowel movements. While receiving treatment with Baytril, dogs or cats may accidentally soil the floor, carpet or furniture due to uncontrollable bowel movement urges. Additional upset stomach side effects may include vomiting or diminished appetite. If these side effects persist or become severe, affected pets should be evaluated by a veterinarian.

Fatigue or Lethargy

Treatment with this medication may induce lethargy or unusual fatigue in dogs or cats, warns. A pet owner may notice that his pet sleeps for longer periods of time during the day or is uninterested in playing with her favorite toys. This side effect of Baytril is temporary and will subside once treatment with this medication ends.

Poor Coordination or Seizures

Dogs or cats receiving treatment with this medication may exhibit poor coordination, also called ataxia, as a side effect. Pets may also experience seizures, which can result in involuntary body spasms or loss of consciousness. Pet owners who notice these side effects in their dog or cat during Baytril treatment should take their pet to a veterinarian as soon as possible for additional evaluation and care.

Cartilage Lesions

Baytril may cause lesions to appear across the cartilage that surrounds the joints within the body of a treated cat or dog. Cartilage is tough, flexible tissue that protects the joint and allows cats and dogs to remain flexible and active. Cartilage lesions may cause side effects of joint swelling, which can cause joint pain or difficulty walking in affected pets, warns. If these side effects emerge, pet owners should take an affected pet to a veterinarian as soon as possible.

Vision Loss

Infrequently, cats treated with Baytril may develop severe eye-related side effects, including vision loss, warns 1. Cats with vision problems may bump into furniture or may not be able to play fetch or locate their favorite toy or sleeping spot. These side effects should be discussed with a veterinarian immediately to ensure affected cats receive appropriate treatment and care.