Pregnancy interaction: : Animal reproduction studies have failed to demonstrate a risk to the fetus and there are no adequate and well-controlled studies in pregnant women OR Animal studies have shown an adverse effect, but adequate and well-controlled studies in pregnant women have failed to demonstrate a risk to the fetus in any trimester.

Side Effects: Low blood sugar signs include, anger, shaking, a fast heartbeat, confusion, or sweating. Keep hard candies, glucose tablets, liquid glucose, or juice on hand for low blood sugar. - Belly pain. - Upset stomach or throwing up. Many small meals, good mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help. - Loose stools (diarrhea). - Not hungry. - Bad taste in your mouth. This most often goes back to normal. - Too much acid in the blood (lactic acidosis) may rarely happen.

How to use: Take Metformin exactly as directed by your doctor. Do not take more or less than instructed by your doctor. - Metformin must be taken regularly for it to work well. Do not stop taking it unless instructed by your doctor. - Metformin must be taken with food. - If you are taking an extended-release type of Metformin, swallow the tablet whole with food. Do not crush or chew the tablet.

How it works: Metformin lowers sugar and helps insulin work better.