Contraceptive Agents, Female/administration & dosage; Vaginal Creams, Foams, and Jellies/administration & dosage; Clinical Trials as Topic/methods; Contraceptive Agents, Female/pharmacokinetics; Female; Humans; Vaginal Creams, Foams, and Jellies/pharmacokinetics

Annovera; Depo-Provera; EluRyng; Flexi-T; IUD; Kyleena; Liberte; Liletta; Mirena; Mona Lisa; Nexplanon; NuvaRing; ParaGard; Phexxi; Skyla; Twirla; Xulane; adverse effects; cervical cap; condom; contraceptives; diaphragm; dosage; efficacy; levonorgestrel; medroxyprogesterone; oral contraceptives; progestins; safety; spermicides