I am currently on Tri-cyclen Lo birth control, and take it regularily and responsibly. I would like to start taking gingko vitamins to help improve my alertness in school, but I am concerned that one may effect the other, especially since I've heard that gingko should not be taken with medications that effect blood consistency. Is taking them together (not at the same time, but on the same day or within hours of eachother) safe?