My senior dog has an enlarged kidney. Is it from Cephalexin damage?

Question

on the 4th of March, my dog was given 2000 mg Cephalexin, for 21 days for a severe skin infection, he was 80 pounds. The last 8-9 days, he has lost 12 lbs and was given IV fluids and new antibiotics 2 days ago (today is the 27). I insisted on xrays because I thought he had something stuck in his throat. The xrays revealed he has a super enlarged kidney, 5 times the size of the opposite kidney. I was told he might have cancer. He only had a skin infection, now this? Is it cephalexin damage? Pet's info: Dog | Labrador Retriever | Male | unneutered | 11 years and 8 months old | 69 lbs

Dr. Melanie, BVSc MS · Accepted Answer

In rare cases, it can cause kidney damage, but it won't lead to the kidney becoming extremely enlarged. I'm sorry this is happening with Odin! In a dog his age, cancer is always a possibility. I hope this helps.

My senior dog has an enlarged kidney. Is it from Cephalexin damage?

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