Levonorgestrel
Levonorgestrel magani ne na hormonal wanda ake amfani dashi a yawancin hanyoyin hana haihuwa. Ana hada shi da isrogen don yin hadin gwiwar maganin hana haihuwa. A matsayin maganin hana haihuwa na gaggawa, ana siyar da shi ƙarƙashin alamar sunan Plan B da sauransu, yana da amfani a cikin sa'o'i 120 na jima'i mara kariya. Yawancin lokacin da ya wuce tun lokacin jima'i, ƙananan maganin ya zama ƙasa da tasiri, kuma ba ya aiki bayan ciki (shigarwa) ya faru. Yana rage yiwuwar daukar ciki da kashi 57 zuwa 93%. A cikin na'urar intrauterine (IUD), irin su Mirena da sauransu, yana da tasiri don rigakafin dogon lokaci na ciki. Hakanan ana samun shuka mai sakin levonorgestrel a wasu ƙasashe.

Abubuwan da aka saba amfani da su sun haɗa da tashin zuciya, taushin ƙirji, ciwon kai, da ƙaruwa, raguwa, ko zubar jinin haila na yau da kullun. Lokacin da aka yi amfani da shi azaman maganin hana haihuwa na gaggawa, idan ciki ya faru, babu wata shaida cewa amfani da shi yana cutar da jariri. Yana da aminci don amfani yayin shayarwa. Tsarin haihuwa wanda ya ƙunshi levonorgestrel ba zai canza haɗarin cututtukan da ake ɗauka ta jima'i ba. Yana da progestin kuma yana da tasiri kamar na hormone progesterone. Yana aiki da farko ta hana ovulation da kuma rufe bakin mahaifa don hana wucewar maniyyi.

Levonorgestrel an ba da izini a cikin 1960 kuma an gabatar da shi don amfanin likita tare da ethinylestradiol a cikin 1970. Yana cikin Jerin Mahimman Magunguna na Hukumar Lafiya ta Duniya. Akwai shi azaman magani na gama-gari. Farashin farashi a cikin ƙasashe masu tasowa tsakanin $0.23 da $1.65 US don adadin da ake buƙata don hana haihuwa na gaggawa. A {asar Amirka, ana samun kulawar gaggawar haihuwa mai ɗauke da levonorgestrel akan ma'auni (OTC) na kowane shekaru. A cikin 2016, shi ne na 223 mafi yawan magunguna a Amurka, tare da magunguna fiye da miliyan biyu.

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