| parent | Sildenafil citrate | LP28528-5 | 
| child | Sildenafil citrate [Mass/volume] in Serum or Plasma | 28075-0 | 
| child | Sildenafil citrate [Moles/volume] in Serum or Plasma | 55578-9 | 
| parent | Sildenafil citrate | LP28528-5 | 
| child | Sildenafil citrate [Mass/volume] in Serum or Plasma | 28075-0 | 
| child | Sildenafil citrate [Moles/volume] in Serum or Plasma | 55578-9 | 
| STATUS | NotStated | 
| PartDisplayName | en-US | Sildenafil citrate | Serum or Plasma | Drug toxicology | 
LOINC Version: 2.78