> ## Documentation Index
> Fetch the complete documentation index at: https://docs.metriport.com/llms.txt
> Use this file to discover all available pages before exploring further.

# MedicinalProductInteraction

> The interactions of the medicinal product with other medicinal products, or other forms of interactions.

## Properties

| Name                | Required | Type                                                                                                                                                                                                                                                                                                                                   | Description                                                                                              |
| ------------------- | -------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- |
| subject             | No       | Reference\<[MedicinalProduct](/medical-api/fhir/resources/medicinalproduct) / [Medication](/medical-api/fhir/resources/medication) / [Substance](/medical-api/fhir/resources/substance)>\[]                                                                                                                                            | The medication for which this is a described interaction                                                 |
| description         | No       | string                                                                                                                                                                                                                                                                                                                                 | The interaction described                                                                                |
| interactant         | No       | MedicinalProductInteractionInteractant                                                                                                                                                                                                                                                                                                 | The specific medication, food or laboratory test that interacts                                          |
| - id                | No       | string                                                                                                                                                                                                                                                                                                                                 | Unique id for inter-element referencing                                                                  |
| - extension         | No       | [Extension](/medical-api/fhir/data-types/extension)\[]                                                                                                                                                                                                                                                                                 | Additional content defined by implementations                                                            |
| - modifierExtension | No       | [Extension](/medical-api/fhir/data-types/extension)\[]                                                                                                                                                                                                                                                                                 | Extensions that cannot be ignored even if unrecognized                                                   |
| - item\[x]          | Yes      | Reference\<[MedicinalProduct](/medical-api/fhir/resources/medicinalproduct) / [Medication](/medical-api/fhir/resources/medication) / [Substance](/medical-api/fhir/resources/substance) / [ObservationDefinition](/medical-api/fhir/resources/observationdefinition)>, [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | The specific medication, food or laboratory test that interacts                                          |
| type                | No       | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)                                                                                                                                                                                                                                                                        | The type of the interaction e.g. drug-drug interaction, drug-food interaction, drug-lab test interaction |
| effect              | No       | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)                                                                                                                                                                                                                                                                        | The effect of the interaction, for example "reduced gastric absorption of primary medication"            |
| incidence           | No       | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)                                                                                                                                                                                                                                                                        | The incidence of the interaction, e.g. theoretical, observed                                             |
| management          | No       | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)                                                                                                                                                                                                                                                                        | Actions for managing the interaction                                                                     |

## Search Parameters

| Name    | Type      | Description                                     | Expression                          |
| ------- | --------- | ----------------------------------------------- | ----------------------------------- |
| subject | reference | The medication for which this is an interaction | MedicinalProductInteraction.subject |

## Inherited Properties

| Name              | Required | Type                                                   | Description                                            |
| ----------------- | -------- | ------------------------------------------------------ | ------------------------------------------------------ |
| id                | No       | string                                                 | Logical id of this artifact                            |
| meta              | No       | [Meta](/medical-api/fhir/data-types/meta)              | Metadata about the resource                            |
| implicitRules     | No       | uri                                                    | A set of rules under which this content was created    |
| language          | No       | code                                                   | Language of the resource content                       |
| text              | No       | [Narrative](/medical-api/fhir/data-types/narrative)    | Text summary of the resource, for human interpretation |
| contained         | No       | Resource\[]                                            | Contained, inline Resources                            |
| extension         | No       | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations          |
| modifierExtension | No       | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored                      |

To view the FHIR specification for this resource, see [MedicinalProductInteraction](https://www.hl7.org/fhir/StructureDefinition/MedicinalProductInteraction).