With the linagliptin @ mg/metformin @ mg dose , the ratio with linagliptin for AUC@-@ and Cmax was @ % ( @ % CI : @-@ @ ) and @ % ( @ % CI : @-@ @ ) , respectively ; the same statistical parameters with metformin for AUC@-tz and Cmax were @ % ( @ % CI : @-@ @ ) and @ % ( @ % CI : @-@ @ ) , respectively .