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A member asked:

Metformin er for 2 yrs 2 times a day 500mg with food my new doctor says with er i should take two tablets once a day in eve is it safe to double up?

A doctor has provided 1 answer
Dr. Andrew Lipton answered

Specializes in Holistic Medicine

Metformin: Metformin is metabolized through the kidneys. If kidney function is monitored through serum creatinine, metformin is safe in does up to 2400mg. Er, extended release is designed for once a day dosing and 1000mg is an appropriate dose as long as kidneys are functioning.

Answered 6/8/2013

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