Failing to prevent pregnancy is a pretty big failure for a birth control pill. Pfizer is trying to avoid that outcome by recalling 1 million packets of potentially defective pills. What's the problem? Every packet contains 3 week's worth of birth control pills and a week's worth of sugar pills—basically to keep you in the habit of taking a pill every day even during your period week. Some of the defective packs don't contain enough sugar pills. That's not really a problem. In others, however, the actual birth control pills have been swapped for extra sugar pills. That's what Pfizer is worried about. The recall includes Pfizer Lo/Ovral-28 tablets and Akrimax Pharmaceuticals brand Norgestrel and Ethinyl Estradiol tablets.