hexamethonium: meaning, definition, pronunciation and examples
RareTechnical/Medical
Quick answer
What does “hexamethonium” mean?
A synthetic compound that acts as a ganglion-blocking agent, historically used to treat severe hypertension.
Audio
Pronunciation
Definition
Meaning and Definition
A synthetic compound that acts as a ganglion-blocking agent, historically used to treat severe hypertension.
A bis-quaternary ammonium salt, specifically a hexamethylene bis-trimethylammonium compound, that competitively antagonizes acetylcholine at nicotinic receptors of autonomic ganglia, leading to parasympathetic and sympathetic blockade.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. The spelling is identical.
Connotations
Connotes mid-20th century pharmacology and now primarily historical medical treatment or experimental physiology.
Frequency
Equally rare in both varieties, confined to specialised medical literature.
Grammar
How to Use “hexamethonium” in a Sentence
[substance] + verb (block, inhibit, cause) + [effect]Hexamethonium was used to treat hypertension.The experiment involved the application of hexamethonium.Vocabulary
Collocations
Examples
Examples of “hexamethonium” in a Sentence
adjective
British English
- The hexamethonium-induced hypotension was significant.
- A hexamethonium-sensitive pathway.
American English
- The hypotension induced by hexamethonium was marked.
- A pathway sensitive to hexamethonium.
Usage
Meaning in Context
Business
Not used.
Academic
Used in medical history, pharmacology textbooks, and physiology research papers discussing autonomic nervous system blockade.
Everyday
Virtually never used.
Technical
Core usage. Appears in specialised journals, chemical databases, and historical clinical trial reports.
Vocabulary
Synonyms of “hexamethonium”
Strong
Neutral
Weak
Vocabulary
Antonyms of “hexamethonium”
Watch out
Common Mistakes When Using “hexamethonium”
- Misspelling as 'hexamathonium' or 'hexamethonium'.
- Confusing it with other '-onium' compounds like 'succinylcholine' (a muscle relaxant).
FAQ
Frequently Asked Questions
No, its clinical use has been superseded by safer and more selective antihypertensive drugs. It is now primarily a research tool in physiology.
It refers to the six methylene groups (–CH2–) in the central chain linking the two quaternary ammonium groups.
It is very poorly absorbed from the gastrointestinal tract due to its permanent positive charge, so it was historically administered by injection.
Due to its non-selective blockade of all autonomic ganglia, it caused severe side effects like paralytic ileus (gut stoppage), urinary retention, dry mouth, and blurred vision.
A synthetic compound that acts as a ganglion-blocking agent, historically used to treat severe hypertension.
Hexamethonium is usually technical/medical in register.
Hexamethonium: in British English it is pronounced /ˌhɛksəmɪˈθəʊnɪəm/, and in American English it is pronounced /ˌhɛksəmɪˈθoʊniəm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None.”
Learning
Memory Aids
Mnemonic
Think: HEXA (six) + METH (methyl groups) + ONIUM (ammonium ion) – a six-carbon chain with trimethylammonium groups at each end.
Conceptual Metaphor
A KEY that BLOCKS a LOCK (the nicotinic receptor), preventing the normal chemical signal (acetylcholine) from turning on the ganglionic cell.
Practice
Quiz
Hexamethonium is primarily classified as what type of agent?