| parent | Perhexiline | LP20803-0 |
| child | Sildenafil citrate | Serum or Plasma | Drug toxicology | LP389326-2 |
| parent | Reproductive medications | LP31496-0 |
| child | Norsildenafil | LP36418-9 |
| child | Sildenafil citrate | Serum or Plasma | Drug toxicology | LP389326-2 |
| PartDisplayName | en-US | Sildenafil citrate |
| DisplayName | en-US | Sildenafil citrate |
LOINC Version: 2.77
FHIR