reports concerning the interaction between steroidal contraceptives ( the combined pill ) and vitamins indicate that in users the mean serum-vitamin-a level is raised and the mean serum-vitamin-b2 ( riboflavine ) , vitamin-b6 ( pyridoxine ) , vitamine-c , folic-acid , and vitamin-b12 levels are reduced .
C0087162
vitamin-b6
C0034272
pyridoxine