Sexual Health

Emergency Contraceptive Pills and Weight

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Health Canada has advised that levonorgestrel emergency contraceptive pills (ECP) (Plan B, Next Choice, Norlevo, Option 2 brands) must carry a warning about reduced effectiveness in heavier women.

Package warning labels will caution that the pills are:

  • less effective in women weighing 75-80 kg (165 to 176 lb), and
  • not effective in women over 80 kg (176 lb).
Source
Author: 
Nicole Pasquino
Original publication date: 
April 1, 2014

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