Drug Ingredient
A substance or a compounded drug which, alone or in combination with 1 or more other ingredients, produces the intended action of the given drug product.
Note: if the same substance is an ingredient of a different drug product, it will be documented in another record (instance) of this class, possibly with a different strength and activity indicator (active or passive).
Appears in
Constraints
Unique key(s)
- Drug[parent], XOR(Drug Ingredient Code, Drug [is])
Stereotype(s)
n/a
Attributes
| Attribute | Type | Multiplicity | Attribute note |
|---|---|---|---|
| Drug Ingredient Code | Codeable Concept | 0..1 | Uniquely specifies a substance which is an active or passive ingredient of the given drug product.
Note: The same substance can be an ingredient of multiple drug products.
Value Sets:
** for non-vaccine medications:
CCDD Therapeutic Moiety (TM):
https://fhir.infoway-inforoute.ca/ValueSet/hc-CCDD/tm |
| Drug Ingredient Strength | Ratio | 0..1 | The amount of the ingredient - value and units, or ratio thereof - present in the given drug product (medication or vaccine).
Note: the same substance can have different strengths in different drug products.
Value Set for units of measure: https://fhir.infoway-inforoute.ca/ValueSet/x_drugunitsofmeasure |
| Active Ingredient Indicator | Indicator | 1 | True if this is an active ingredient of the given drug product, i.e., if it has therapeutic action; false otherwise.
Note that the same substance can be an active ingredient of one drug product and a passive ingredient of another one. |
Relationships
| From class | From multiplicity | Relationship | To class | To multiplicity |
|---|---|---|---|---|
| Drug | 0..* | has (composition) | Drug Ingredient | 0..* |
| Drug Ingredient | 0..* | is | Drug | 0..1 |
Contact us
If you have questions about this initiative, would like to be added to our stakeholder notification list or would like to participate in our consultations, please email us.
How to cite:
Canadian Institute for Health Information. Drug Ingredient. Accessed November 02, 2026.
