Do vitamin Sanastol in which there is a concentrate of grapefruit juice and vitamin C at a dose of 500 mg weaken the effectiveness of contraception?

Good morning, I have such an unusual question, use hormonal contraception at 12 noon in the evening sometimes I drink vitamin sanostol, recently I read that there is a concentrate of grapefruit juice ... Does it have any effect? I normally got bleeding on time. Recently I felt a little cold and I took 500mg of vitamin C as it is supposed to be collateral?