We've all heard the old saying, "less is more," but perhaps we should change is to "more is less," according to new findings posted in Mother Jones recently. Pertaining to the morning after pill, more weight makes the pill less effective, almost useless.

The European manufacturer of an emergency contraceptive pill known as the morning-after pill, will warn women that the drug is completely ineffective for women who weigh more than 176 pounds and begins to lose effectiveness in women who weigh more than 165 pounds. Even at at 166 pounds, the average American woman is too heavy to use these pills effectively.

HRA Pharma, the French manufacturer of the European drug, Norlevo, is changing its packaging information to reflect the weight limits. European pharmaceutical regulators approved the change on November 10, but it has not been previously reported.

The article posted in Mother Jones goes on to say new leaflets warning women about the weight limits will appear in every box of Norlevo sold in Europe in the first half of 2014. The new packaging slip will read, in part: "Studies suggest that Norlevo is less effective in women weighing [165 pounds] or more and not effective in women weighing [176 pounds] or more" and that Norlevo "is not recommended…if you weigh [165 pounds] or more."