I en supplerende 1- års undersøgelse af sitagliptin 100 mg én gang dagligt i kombination med metformin var incidensen af formodede bivirkninger hos de patienter, der blev behandlet med sitagliptin/ metformin sammenlignet med de patienter, der fik et sulfonylurinstof/ metformin henholdsvis 14, 5% og 30, 3%.
5 In an additional 1-year study of sitagliptin 100 mg once daily in combination with metformin, the incidence of adverse reactions considered as drug-related in patients treated with sitagliptin/ metformin compared to sulphonylurea/ metformin was 14.5% and 30.3%, respectively.