Zelo pogosti: siljenje na bruhanje, bruhanje, driska, bolečine v trebuhu in izguba apetita Pogosti: kovinski okus Zelo redki: znižane ravni vitamina B12, hepatitis (bolezen jeter), rdečica kože (izpuščaj) ali srbenje, laktacidoza (zvišanje ravni mlečne kisline v krvi), zlasti pri bolnikih, pri katerih ledvice ne delujejo ustrezno.
Very common: nausea, vomiting, diarrhoea, abdominal pain and loss of appetite Common: a metallic taste Very rare: decreased vitamin B12 levels, hepatitis (a problem with your liver), redness of the skin (rash) or itching, lactic acidosis (excess of lactic acid in your blood) particularly in patients whose kidneys are not working properly.