Overdosing up to two pills is done to make up for a missed pill, but taking four pills at a time is not going to help make up the missed doses and the cycle is no longer protected. You may also see a breakthrough bleeding
due to excessive hormone levels. Other side effects like rashes, nausea
, breast tenderness or abdominal pain
, apart from vascular disturbances, may also be seen with high doses. I do not think you should be using some other form of pill once you are on Diane
35. You are amply protected if you are regular with your medication. Hope this helps.