# Metformin OK for T2s with mild renal impairment: FDA update

**URL:** <https://forum.fudiabetes.org/t/metformin-ok-for-t2s-with-mild-renal-impairment-fda-update/1077>\
**Category:** T2 Research\
**Created:** [May 28, 2017, 12:48am UTC](https://forum.fudiabetes.org/t/metformin-ok-for-t2s-with-mild-renal-impairment-fda-update/1077 "2017-05-28T00:48:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Michel](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/michel/32/387_2.png) [@Michel](https://forum.fudiabetes.org/u/Michel)\
**Post date:** [May 28, 2017, 12:48am UTC](https://forum.fudiabetes.org/t/metformin-ok-for-t2s-with-mild-renal-impairment-fda-update/1077/1 "2017-05-28T00:48:24Z")

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Last month, FDA finalized its recommendation on warning labels that Metformin is now OK for use with T2 patients with mild renal function impairment, and with some T2s with moderate renal function impairment:

> **[Warning use metformin in certain patients with reduced kidney function](https://www.fda.gov/drugs/drug-safety-and-availability/fda-drug-safety-communication-fda-revises-warnings-regarding-use-diabetes-medicine-metformin-certain)**
>
> Revised warnings regarding use of metformin in certain patients with reduced kidney function. FDA issues Drug Safety Communication on diabetes medication.

It is a big deal because other commonly used T2 drugs (glipizide/glucotrol) may cause lows. Metformin doesn’t. So, for those patients with T2 diabetes who now have access to both, being able to switch to Metformin is a big progress. FDA announced the change in 2016 but finalized it in April 2017. Diatribe says this represents 1.6M patients:

> **[Metformin is Safe for Over 1 Million More People with Type 2 Diabetes](https://diatribe.org/metformin-safe-over-1-million-more-people-type-2-diabetes)**
>
> FDA expands use to people with mild to moderate kidney disease.