Q. My Golden Retreiver had a Convenia shot this morning. She has no energy and only went outside once. Is this normal?
DR. JENNIFER LADD, DVM
A. Convenia is simply an injectable cephalosporin antibiotic much like oral cephalexin. I have never seen lethargy from the antibiotic injection, but I would be curious why she needed the antibiotic in the first place. I would suspect the underlying infection that prompted the need for the antibiotic is what is causing these symptoms. I would observe him overnight and contact your vet in the am if not improved.