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Metformin, when does it peak?


Marvell 15 Feb 2013

Metformin peaks between 4 and 8 hours after the dose, described as Tmax below.


Absolute bioavailability is approximately 50% to 60%. T max is 4 to 8 h; C max is approximately 0.6 to 1.8 mcg/mL (ER). Food decreases the extent of absorption and increases T max (immediate-release [IR]).

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