title: Emergency contraception in overweight women: an IUD is preferable.
abstract: According to a post hoc analysis of clinical trials in several hundred obese or overweight women, levonorgestrel and ulipristal have uncertain efficacy in these patients. Insertion of an intrauterine device (IUD) is a better option.
mesh_terms: D044363:Contraception, Postcoital; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D016912:Levonorgestrel / Q000494:pharmacology; D009649:Norpregnadienes / Q000494:pharmacology; D050177:Overweight / Q000503:physiopathology*; D011247:Pregnancy; D018873:Pregnancy Rate
chemical_list: D009649:Norpregnadienes; D016912:Levonorgestrel; C094854:ulipristal