Pfizer recalls 1 mil. birth control packs after mix-up

A manufacturing mix-up by Pfizer Inc., the world's largest drug maker, led to some packets being distributed with the pills out of order. That means a patient could have unknowingly skipped a dose and raised her risk of an accidental pregnancy.

Pfizer has recalled about 1 million packets of Lo/Ovral-28 and its generic equivalent, but the company estimates that only about 30 packets were flawed. The pills were made and shipped last year.

Each packet contains 28 days' worth of the prescription, with 21 pills containing the active ingredient that prevents pregnancy and seven placebo pills. The pills are normally color-coded to note the difference.

Women are supposed to take the pills in order and not mix the placebos with the active pills. Doctors say taking three placebos or more in a row negates the pregnancy protection.

“Women who are potentially on this particular product need to be aware of (the recall) and take this quite seriously,” said Dr. Steven R. Goldstein, a New York University professor of obstetrics and gynecology.

The drug is not among the more commonly prescribed brands of birth control. The brand Lo/Ovral ranked 64th in U.S. birth control sales last year. The generic version, called norgestrel and ethinyl estradiol, ranked 30th, according to data firm IMS Health.

Doctors and pharmacists say Lo/Ovral is an older version of the pill that is not as widely prescribed anymore. They do not expect many panicked calls about the mix-up.

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