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Substance

Any matter of defined composition that has discrete existence, whose origin may be biological, mineral or chemical.

Extends: MedicalEntity

Properties

Property Expected Type Description
activeIngredient Text An active ingredient, typically chemical compounds and/or biologic substances.
maximumIntake MaximumDoseSchedule Recommended intake of this supplement for a given population as defined by a specific recommending authority.

[MedicalEntity](https://schema.org.ai/MedicalEntity) Properties

Property Expected Type Description
code MedicalCode A medical code for the entity, taken from a controlled vocabulary or ontology such as ICD-9, DiseasesDB, MeSH, SNOMED-CT, RxNorm, etc.
funding Grant A Grant that directly or indirectly provide funding or sponsorship for this item. See also ownershipFundingInfo.
guideline MedicalGuideline A medical guideline related to this entity.
legalStatus DrugLegalStatus, MedicalEnumeration, Text The drug or supplement's legal status, including any controlled substance schedules that apply.
medicineSystem MedicineSystem The system of medicine that includes this MedicalEntity, for example 'evidence-based', 'homeopathic', 'chiropractic', etc.
recognizingAuthority Organization If applicable, the organization that officially recognizes this entity as part of its endorsed system of medicine.
relevantSpecialty MedicalSpecialty If applicable, a medical specialty in which this entity is relevant.
study MedicalStudy A medical study or trial related to this entity.

[Thing](https://schema.org.ai/Thing) Properties

Property Expected Type Description
additionalType Text, URL An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is...
alternateName Text An alias for the item.
description Text, TextObject A description of the item.
disambiguatingDescription Text A sub property of description. A short description of the item used to disambiguate from other, similar items. Information from other properties (in particular, name) may be necessary for the descr...
identifier URL, Text, PropertyValue The identifier property represents any kind of identifier for any kind of Thing, such as ISBNs, GTIN codes, UUIDs etc. Schema.org provides dedicated properties for re...
image ImageObject, URL An image of the item. This can be a URL or a fully described ImageObject.
mainEntityOfPage CreativeWork, URL Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See background notes for details.
name Text The name of the item.
potentialAction Action Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.
sameAs URL URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Wikidata entry, or official website.
subjectOf Event, CreativeWork A CreativeWork or Event about this Thing.
url URL URL of the item.

Subtypes

Type Description
DietarySupplement A product taken by mouth that contains a dietary ingredient intended to supplement the diet. Dietary ingredients may include vitamins, minerals, herbs or other botanicals, amino acids, and substanc...
Drug A chemical or biologic substance, used as a medical therapy, that has a physiological effect on an organism. Here the term drug is used interchangeably with the term medicine although clinical know...