Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Opioid

Opioids are a class of drugs that derive from, or mimic, natural substances found in the opium poppy plant. Opioids work on opioid receptors in the brain and other organs to produce a variety of morphine-like effects, including pain relief.

History, Community, Culture & Applications

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Opioid. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

ATC code
N02A
MeSH
D000701
Mode of action
Opioid receptor
Use
Pain relief

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Terminology

Adverse effects

Interactions

Pharmacology

Usage

History

Society and culture

Veterinary use

Classification

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Opioid

Nodes481
Edges480
Triples314
Avg. degree2
Density0.004158
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Opioid

Top relations

related to Pharmacology · 21
Opioid → Another, Conversely, Each, Epsilon, For, G-protein, GABAergic, In, Iota, It, Lambda, N-dealkylation, Opioids, ORL1, Sigma, The, Their, There, These, Unique
related to Naturally occurring opioids · 18
Opioid → BC, BCE, Cueva, Ebers Papyrus, Egyptians, Hul Gil, Iberian Peninsula, Italian Peninsula, Its, La Marmotta, Murciélagos, Neolithic, Opioids, Opium, Papaver, Sumerians, The, Use
related to Usage · 18
Opioid → According, Australia, Calls, Canada, Certain, Data, European Union, First World, In, International Narcotics Control Board, New Zealand, Once, Opioids, Public, The, This, United States, US
related to Efforts to reduce recreational use in the US · 17
Opioid → As, CDC, Chronic Pain, COT, Disease Control, Guideline, However, In, Missouri, Obama, Prescribing Opioids, Prevention, Research, The, The Centers, These, US
related to Criminalization and medical use · 16
Opioid → British, Chairmanship, Departmental Committee, Harrison Act, Harrison Narcotics Tax Act, Heroin Addiction, In, Morphine, Non-clinical, Physicians, President, Royal College, The, The Controlled Substances Act, United Kingdom, United States
related to Veterinary use · 14
Opioid → Boyle, Christopher Wren, Common, Despite, Frederick Hobday, Friedrich Wilhelm Adam Sertürner, Hobday, Howard Jay Milks, In, Livestock, Milks, Most, Robert Boyle, This
related to Respiratory depression · 13
Opioid → AMPAkines, BIMU-8, BIMU8, BW373U86, CX-546, CX717, HT1A, HT4, In, Newer, OH-DPAT, Respiratory, Several
related to Classification · 11
Opioid → Delta, Endogenous, Fully, Mitragyna, Morphine, Mu, Natural, Salvia, Salvinorin, Semi-synthetic, There
related to Semi-synthetic and synthetic opioids · 11
Opioid → Alder Wright, Bayer, Bayer Laboratories, Dreser, Felix Hoffmann, Heinrich Dreser, Heroin, In, In England Charles Romley, Scientists, Synthetic
related to Definition · 9
Opioid → Acheson, Another, By, George, In, It, One, Some, The

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

opioids pain use morphine used opium effects also may drugs receptors addiction chronic including drug tolerance found treatment increased naloxone

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
OpioidATC codeN02A1.00infobox
OpioidMeSHD0007011.00infobox
OpioidMode of actionOpioid receptor1.00infobox
OpioidUsePain relief1.00infobox
Opioidis aagonist or an antagonist0.90text
carfentanil are approved only for veterinary useinstance ofExtremely potent opioids0.80text
hydrocodoneinstance ofOther opioids are semi-synthetic and synthetic drugs0.80text
oxycodoneinstance ofOther opioids are semi-synthetic and synthetic drugs0.80text
and fentanylinstance ofOther opioids are semi-synthetic and synthetic drugs0.80text
cancerinstance ofdisabling pain that may occur in some terminal conditions0.80text
and degenerative conditions such as rheumatoid arthritisinstance ofdisabling pain that may occur in some terminal conditions0.80text
cancerinstance ofLoperamide is a peripherally selective opioid available without a prescription used to suppress diarrhea.The ability to suppress diarrhea also produces constipation when opioids…0.80text

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.