| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| G | GENITO URINARY SYSTEM AND SEX HORMONES | 生殖泌尿系统和性激素 |
| G04 | UROLOGICALS | 泌尿药 |
| G04B | Urologicals | 泌尿药 |
| G04BE | Drugs used in erectile dysfunction | 勃起机能障碍用药 |
| G04BE03 | sildenafil | 西地那非 50 mg 口服 |