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www.fdanews.com/articles/143713-packaging-error-prompts-pfizer-recall-of-birth-control-drug

Packaging Error Prompts Pfizer Recall of Birth Control Drug

February 3, 2012
Pfizer is voluntarily recalling 14 lots of its oral contraceptive Lo/Ovral-28 and 14 lots of the norgestrel and ethinyl estradiol generic product as some blister packs may be missing tablets or displaying tablets out of sequence. The problem resulted from a packaging error, which has been corrected, Pfizer said Wednesday. The company declined to reveal the root cause of the manufacturing flub.
Drug Industry Daily