Pfizer announced yesterday that they’re recalling around 1 million packets of birth control pills in the U.S. Consumers won’t be harmed if they do take them, but the company warned there may not be enough contraceptive to prevent pregnancy.

The announcement on the U.S. Food and Drug Administration‘s site says those affected by the recall are urged by Pfizer to “begin using a non-hormonal form of contraception immediately.”

The issue involves 14 lots of Lo/Ovral-28 tablets and 14 lots of Norgestrel and Ethinyl Estradiol tablets. Pfizer’s investigation found some packs of the pills might contain either an inexact count of inert or active ingredients in the pills. Some blister packs may have pills out of sequence, an important factor when taking a daily oral contraceptive.

The pills are marketed by Akrimax Pharmaceuticals and were shipped nationwide to pharmacies, warehouses and clinics.

The U.S. FDA says if you have the affected product, notify your doctor and return the product to the pharmacy. Check out their announcement for a list of recalled lots.

Pfizer Announces Voluntary Nationwide Recall of Lo/Ovral®-28and Norgestrel/Ethinyl Estradiol Tablets Due to Possibility of Inexact Tablet Counts or Out of Sequence Tablets [U.S. FDA]

Want more consumer news? Visit our parent organization, Consumer Reports, for the latest on scams, recalls, and other consumer issues.