Synonyms : Alcala Brand of Levonorgestrel, Aventis Pharma Brand of Levonorgestrel, Berlex Brand of Levonorgestrel, Capronor, Cerazet, D-Norgestrel, HRA Brand 1 of Levonorgestrel, HRA Brand 2 of Levonorgestrel, Hexal Brand of Levonorgestrel, Microlut, Microval, Mirena, Plan B