Analysis of information sources in references of the Wikipedia article "Opiate" in English language version.
Opiate is the older term classically used in pharmacology to mean a drug derived from opium. It has been used in the past to refer to drugs with opium-like effects, but that use is dated. Opioid, a more modern term, is used to designate all substances, both natural and synthetic, that bind to opioid receptors (including antagonists).
{{cite journal}}
: CS1 maint: multiple names: authors list (link){{cite journal}}
: CS1 maint: multiple names: authors list (link)