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So to make it quick and easy for you to learn about medications, we’ll start showing key facts -- side effects, related medications, links to in-depth resources, and more -- right on the search results page.
Google Adds Medication Look-Up To SERPs [insidesearch.blogspot.co.uk]
This data comes from the U.S. FDA, the National Library of Medicine, and the Department of Veterans Affairs, among others.
Thing > MedicalEntity > MedicalIntangible > MedicalEnumeration > MedicineSystem >
Having done a lot of medicine searches in my time, I know how hard it is to find all this information in one place, so the top level "collection" that Google offers is a real service to the end user.