I kombination med metformin, som hovedsagelig indvirker på plasmaglukosen i fastende tilstand (mængden af sukker i blodet, når personen ikke har spist noget), var effekten af Trazec på HbA1c bedre end nogen af lægemidlerne alene.
In combination with metformin, which mainly affected fasting plasma glucose (the amount of glucose in the blood when the person has not eaten anything), the effect of Trazec on HbA1c was better than either medicine alone.