4 ) more than 3 months after 5-fu or tegafur administration , significant elevations of serum t3 , t4 and tbg concentrations were demonstrated in cancer patients , compared to pre-treatment values or those within 2 months after therapy , although there were no significant changes in serum thyroglobulin and tsh levels before and after therapy .
C0016360
5-fu
C0016778
tegafur