However, metformin does contribute to increased homocysteine levels.PREGNANCY WARNING.
Glucophage suppresses the production of this reserve fuel.Third, and perhaps most importantly, metformin increases the sensitivity of muscle cells to insulin.(2) Insulin is the hormone that delivers glucose into your cells to be burned as fuel, or stored. People who take Glucophage tend to have higher homocysteine levels.(14) Women with PCOS also tend to have elevated homocysteine.(15)Homocysteine is an amino acid in the blood. They experience a general malaise, fatigue and occasional achiness that lasts for varying lengths of time. Some women have found it helps to start with a very low dose and gradually increase it.VITAMIN B12 MALABSORPTION. This problem occurs more often after meals rich in fats or sugars. A healthy liver and kidneys will improve your outcome with metformin. If you have liver or kidney problems of any kind, metformin could pose a problem, because it alters liver function and is excreted through the kidneys. Metformin interferes with the ability of your cells to absorb this intrinsic factor-vitamin B12 complex.(12)Over the long term, vitamin B12 insufficiency is a significant health risk. There is also a link between B12 insufficiency and cardiovascular disease.At least one study raises the concern that even if metformin is withdrawn, the vitamin B12 malabsorption may continue in some people.(13) The apparent cause is continued problems with availability of intrinsic factor, which is required for B12 absorption.ELEVATED HOMOCYSTEINE.