Can you actually show me something that says metformin causes kidney damage? All I can find is references to metformin and Precautions with Renal Impairment, as in metformin is counter indicated if you have poor kidney function. My endo is very contiencious and advised me of the risk of pancreatitis with januvia. She is really very thorough and I think she would have mentioned something like that. Also metformin is approved for use in children. They make a liquid suspension and my pharmacy once gave me raspberry flavoured tablets. Anyways if you can find me something that says metformin causes kidney damage please let me know. You want to nip the insulin resistance in the bud with females because it is linked to developing PCOS in T1s.