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WARNING!
Hello, I used metformin 3 times a day 500g for almost 9 months. it made me dizzy sometimes and also I had frequent bowel movements
However, the main side effect was that it caused severe lactic acid built up in my body which resulted in severe cramps and muscle pain so that my body was in intense pain to the extent I had to be hospitalized and treated with quantitites of ibruprophen to dilute the acid.