Standard Lemma guide

guanfacine

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • General-American: /ˈɡwɑn.fəˌsin/

1

noun

Meaning 1

A drug that is an alpha-adrenergic agonist taken orally in the form of its hydrochloride C9H9Cl2N3O·HCl especially to treat hypertension and attention deficit disorder. It is marketed under the trademarks Intuniv and Tenex.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Probably from guan- (“guanidine derivative”) + ph(enyl)ac(etyl) + -ine.