Morning after pill doesn't work for women over 176 lbs.

Morning after pill doesn't work for women over 176 lbs.

Mother Jones: European-made Norlevo, an emergency contraceptive identical to Plan B, is completely ineffective for women who weigh more than 176 pounds, and loses effectiveness at 165 pounds.

This development has implications for American women. Some of the most popular emergency contraceptive pills sold over the counter in the United States—including the one-pill drugs Plan B One-Step, Next Choice One Dose, and My Way, and a number of generic two-pill emergency contraceptives—have a dosage and chemical makeup identical to the European drug. Weight data from the Centers for Disease Control and Prevention (CDC) suggests that, at 166 pounds, the average American woman is too heavy to use these pills effectively.

Read more.