There is no word about switching over the tablets because both tablets are different than all the same

Normoz is not birth control pil Krimson is generally prescribed for pt with excessive hair growth related to pcod If u r taking it as only for birthcontrol , then medicines with lesser hormonal content are available. Brownish discharge is breakthrough bleeding which generally settles by 2-3 cycles or if continues then u have to switch to other medications

Normoz is not birth control It is to correct ur pcod So chances of pregnancy will be there