| 
 | 
 
| 
 | 
The Anatomical Therapeutic Chemical (ATC) classification system
 | 
 | 
 
 
 | 
 | 
| 
 | 
  
Level 5
  
G - Genito urinary system and sex hormonesG03 - Sex hormones and modulators of the genital systemG03A - Hormonal contraceptives for systemic useG03AD - Emergency contraceptivesG03AD01 - Levonorgestrel
  
Levonorgestrel
  
 
 | 
 
  
 | 
| 
 |