I Am Taking The Generic Keppra 1,000 Mg Bid For

I am taking the generic Keppra 1,000 mg bid for one year. I had a Neuroblate procedure and stereotactic biopsy at The Cleveland Clinic on 12/24/14. Diagnosis was stage III anaplastic astrocytoma. Treatment included radiation therapy and Temodar chemo for six weeks, then Temodar five days/month for six months. The MRI in December 2015 showed improvement! Question is: does the generic Keppra cause an odor to the breath and the urine? I have noticed this over the whole year - not a new symptom. THANKS!