They're studying new data suggesting a higher body weight could reduce the effectiveness of emergency contraceptives. They're also looking at whether labeling changes will be needed for the pills.
The product labeling for the drug Norlevo was recently revised in Europe to say in trials, the emergency contraceptives were not effective in women who weighed more than 176 pounds.
There are four emergency contraceptive pills available without a prescription in Canada, they are Next Choice, Norlevo, Option Two and Plan B.
