| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Phenytoin sodium [antiarrythmic] | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Product containing precisely phenytoin 50 milligram/1 each conventional release chewable tablet (clinical drug) | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Phenytoin sodium 50 mg oral tablet | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Phenytoin sodium 100 mg oral tablet | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Phenytoin sodium 300 mg oral capsule | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Phenytoin sodium 25 mg oral capsule | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Phenytoin sodium 50 mg oral capsule | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| natriumfenytoin 100 mg, kapsel med modifierad frisättning | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Phenytoin sodium [status epilepsy] | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| fenytoinnatrium 50 mg/ml, injektionsvätska, lösning, ampull 5 ml | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| natriumfenytoin 30 mg, kapsel med modifierad frisättning | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Product containing precisely phenytoin sodium 100 milligram/1 each conventional release oral capsule (clinical drug) | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Phenytoin sodium 50mg/mL injection solution ampule | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| natriumfenytoin | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Pentobarbital sodium 390mg/phenytoin sodium 50mg injection solution vial | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Pentobarbital sodium+phenytoin sodium | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Phenytoin sodium 200 mg prolonged-release oral capsule | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Phenytoin sodium 300 mg prolonged-release oral capsule | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| natriumfenytoin med förlängd frisättning | Is a | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| fenytoinnatrium med omedelbar frisättning | Is a | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| natriumfenytoin 100 mg, kapsel med modifierad frisättning | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| natriumfenytoin 30 mg, kapsel med modifierad frisättning | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Phenytoin sodium 50 mg oral tablet | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 50 mg oral tablet | Has basis of strength substance (attribute) | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 100 mg oral tablet | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 100 mg oral tablet | Has basis of strength substance (attribute) | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 300 mg oral capsule | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 300 mg oral capsule | Has basis of strength substance (attribute) | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 25 mg oral capsule | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 25 mg oral capsule | Has basis of strength substance (attribute) | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 50 mg oral capsule | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 50 mg oral capsule | Has basis of strength substance (attribute) | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Product containing precisely phenytoin sodium 100 milligram/1 each conventional release oral capsule (clinical drug) | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some | 2 | 
| Product containing precisely phenytoin sodium 100 milligram/1 each conventional release oral capsule (clinical drug) | Has basis of strength substance (attribute) | False | Phenytoin sodium (substance) | Inferred relationship | Some | 2 | 
| Product containing precisely phenytoin sodium 100 milligram/1 each conventional release oral capsule (clinical drug) | Has basis of strength substance (attribute) | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| fenytoinnatrium 30 mg, depåkapsel | Has active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some |  | 
| Product containing precisely phenytoin sodium 100 milligram/1 each prolonged-release oral capsule (clinical drug) | Has basis of strength substance (attribute) | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Product containing precisely phenytoin sodium 100 milligram/1 each prolonged-release oral capsule (clinical drug) | Has precise active ingredient | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 50 mg oral tablet | Has precise active ingredient | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 100 mg oral tablet | Has precise active ingredient | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 300 mg oral capsule | Has precise active ingredient | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 25 mg oral capsule | Has precise active ingredient | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 50 mg oral capsule | Has precise active ingredient | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Product containing precisely phenytoin sodium 100 milligram/1 each conventional release oral capsule (clinical drug) | Has precise active ingredient | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| fenytoinnatrium 250 mg/5 ml, injektionsvätska, lösning, ampull | Has precise active ingredient | False | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| fenytoinnatrium 250 mg/5 ml, injektionsvätska, lösning, ampull | Has basis of strength substance (attribute) | False | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 50 mg/mL solution for injection | Has precise active ingredient | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 50 mg/mL solution for injection | Has basis of strength substance (attribute) | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 300 mg prolonged-release oral capsule | Has basis of strength substance (attribute) | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 300 mg prolonged-release oral capsule | Has precise active ingredient | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 200 mg prolonged-release oral capsule | Has basis of strength substance (attribute) | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 | 
| Phenytoin sodium 200 mg prolonged-release oral capsule | Has precise active ingredient | True | Phenytoin sodium (substance) | Inferred relationship | Some | 1 |