... put me on was ortho tri cyclin Lo. The reason i went on birthe control in the first place was to regulate acne breakouts. i was on ortho tri cyclin lo for about 2 years then my doctor switched me to ortho cylin. so i was on that for another 2 years and now i am also using it for birth control rather than just acne. ortho tri cyclin really helped with my acne, and i have noticed that my acne is worse with ortho cyclin. so i was wondering if it was okay to switch back to ortho tri cyclin to use for birth control as well as acne control again? the reason i ask is because i know that ortho cyclin is a high dose and my body is probably amuune to the high dosage. so if i switch to tri cyclin lo since it is a lower dose will it still prevent pregnancy??