| id | 0..1 | string | Logical id of this artifact |
| meta | 0..1 | Meta | Metadata about the resource |
| implicitRules | 0..1 | uri | A set of rules under which this content was created |
| language | 0..1 | code | Language of the resource content |
| text | 0..1 | Narrative | Text summary of the resource, for human interpretation |
| contained | 0..* | Resource | Contained, inline Resources |
| extension | 0..* | Extension | Additional content defined by implementations |
| modifierExtension | 0..* | Extension | Extensions that cannot be ignored |
| identifier | 0..1 | Identifier | Identifier for the ingredient |
| role | 1..1 | CodeableConcept | Ingredient role e.g. Active ingredient, excipient |
| allergenicIndicator | 0..1 | boolean | If the ingredient is a known or suspected allergen |
| manufacturer | 0..* | Reference | Manufacturer of this Ingredient |
| specifiedSubstance | 0..* | BackboneElement | A specified substance that comprises this ingredient |
| substance | 0..1 | BackboneElement | The ingredient substance |