7. United States Food Drug and Administration, Mirena FDA label, (2015); www.accessdata.fda.gov/drugsatfda_docs/label/2015/021225s031lbl.pdf). 8. United States Food Drug and Administration, Liletta FDA label, (2018); www.accessdata.fda.gov/drugsatfda_docs/label/2018/206229s007lbl.pdf). 9. United States Food and Drug Administration, Kyleena FDA label, (2016); www.accessdata.fda.gov/drugsatfda_docs/nda/2016/208224Orig1s000LBL.pdf. 10. United States Food and Drug Administration, Skyla FDA label, (2017); www.accessdata.fda.gov/drugsatfda_docs/label/2017/203159s007lbl.pdf.
The authors discuss that intrauterine (within the uterus) hormone devices can serve as an alternative contraceptive form, providing protection for 3-6 years.