Albuterol   125 studies
Atosiban   3 studies
Buserelin   15 studies
Clomiphene   27 studies
Cloprostenol   8 studies
Contraceptive Agents   517 studies
Contraceptive Agents, Female   449 studies
Contraceptive Agents, Male   91 studies
Contraceptives, Oral   343 studies
Contraceptives, Oral, Combined   50 studies
Contraceptives, Oral, Hormonal   7 studies
Contraceptives, Oral, Sequential   8 studies
Contraceptives, Postcoital   67 studies
Cyproterone Acetate   12 studies
Desogestrel   17 studies
Dienogest   12 studies
Dinoprostone   21 studies
Ergonovine   1 study
Estradiol 17 beta-cypionate   284 studies
Estradiol 3-benzoate   284 studies
Estradiol valerate   284 studies
Ethinyl Estradiol-Norgestrel Combination   9 studies
Fenoterol   2 studies
Gestodene   4 studies
Gonadotropins, Pituitary   2 studies
Gossypol   16 studies
Gossypol acetic acid   16 studies
Indomethacin   39 studies
Kallikreins   6 studies
Leuprolide   123 studies
Levonorgestrel   72 studies
Lonidamine   2 studies
Magnesium Sulfate   29 studies
Medroxyprogesterone   56 studies
Medroxyprogesterone 17-Acetate   56 studies
Megestrol   39 studies
Menotropins   11 studies
Methotrexate   719 studies
Methylergonovine   1 study
Mifepristone   57 studies
Misoprostol   69 studies
Modicon   10 studies
Nafarelin   3 studies
Nifedipine   45 studies
Nonoxynol   7 studies
Norelgestromin   17 studies
Norethindrone   25 studies
Norethindrone acetate   25 studies
Norgestimate   15 studies
Norgestrel   12 studies
Norinyl   10 studies
Octoxynol   7 studies
Ortho Evra   18 studies
Oxytocin   43 studies
Ritodrine   2 studies
ST 1435   5 studies
Sulprostone   1 study
Syntometrine   1 study
Terbutaline   19 studies
Trestolone   1 study
Trichosanthin   1 study
Trilostane   1 study
Triptolide   1 study
Triptorelin   34 studies
3-keto-desogestrel   11 studies