Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2003. Module: SNOMED CT core
Descriptions:
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Isoniazid (substance) | Is a | Antituberculosis agent | true | Inferred relationship | Some | ||
| Isoniazid (substance) | Is a | allergeen | false | Inferred relationship | Some | ||
| Isoniazid (substance) | Is a | allergeen van geneesmiddel (substantie) | false | Inferred relationship | Some | ||
| Isoniazid (substance) | Is a | tuberculostaticum met hydrazide | false | Inferred relationship | Some | ||
| Isoniazid (substance) | Has disposition (attribute) | Antimycobacterial | true | Inferred relationship | Some | ||
| Isoniazid (substance) | Is a | Pyridine and/or pyridine derivative | true | Inferred relationship | Some | ||
| Isoniazid (substance) | Is a | Hydrazine and/or hydrazine derivative | true | Inferred relationship | Some | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Isoniazid 75 mg and rifampicin 150 mg oral tablet | Has precise active ingredient | True | Isoniazid (substance) | Inferred relationship | Some | 2 | 
| Isoniazid 75 mg and rifampicin 150 mg oral tablet | Has basis of strength substance (attribute) | True | Isoniazid (substance) | Inferred relationship | Some | 2 | 
| Product containing precisely isoniazid 100 milligram/1 milliliter conventional release solution for injection (clinical drug) | Has precise active ingredient | True | Isoniazid (substance) | Inferred relationship | Some | 1 | 
| Product containing precisely isoniazid 100 milligram/1 milliliter conventional release solution for injection (clinical drug) | Has basis of strength substance (attribute) | True | Isoniazid (substance) | Inferred relationship | Some | 1 | 
| Urine isoniazid measurement (procedure) | Component | True | Isoniazid (substance) | Inferred relationship | Some | 1 | 
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This concept is not in any reference sets