Does Biotin affect your kidneys? I have Lupus Nephritis and just changed my medicine from cellcept to imuran about 2 and a half weeks ago. I started taking Biotin last week. Two days ago I started feeling the same pain in my lower area back, almost off to the siedes that I had when I found out I had Lupus Nephritis. I am not sure if it is from switching my medicine, or from taking Biotin?

Summarized question: Does Biotin affect your kidneys ?