3d image of tigestol skeletal formula

tigestol steroidal progestin 19-nortestosterone isomer progestogen progestagen gestagen gestogen female sex hormone hormonal birth control contraception control oral contraceptives mother gynecology obstetrics woman motherhood birth fertility fertility medicine menopausal hormone therapy gynecological conditions pregnancy art assisted reproductive technology infertility drug preparation mount treatment medicament remedy cure medication side effect adverse action iatrogenic overdose contraindications interaction 3d