| 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 |
| G03F | PROGESTOGENS AND ESTROGENS IN COMBINATION | 孕激素和雌激素的复方 |
| G03FA | Progestogens and estrogens, fixed combinations | 孕激素和雌激素，固定的配方 |
| G03FB | Progestogens and estrogens, sequential preparations | 孕激素类和雌激素类，连续变化的配方 |