| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| G | GENITO URINARY SYSTEM AND SEX HORMONES | 生殖泌尿系统和性激素 |
| G03 | SEX HORMONES AND MODULATORS OF THE GENITAL SYSTEM | 性激素和生殖系统调节药 |
| G03A | HORMONAL CONTRACEPTIVES FOR SYSTEMIC USE | 系统用药的激素类避孕药 |
| G03AA | Progestogens and estrogens, fixed combinations | 孕激素和雌激素，固定复方 |
| G03AB | Progestogens and estrogens, sequential preparations | 孕激素和雌激素，连续变化的配方 |
| G03AC | Progestogens | 孕激素类 |