methadone

noun

meth·​a·​done ˈme-thə-ˌdōn 

variants or less commonly methadon

ˈme-thə-ˌdän 

: a synthetic addictive narcotic drug C₂₁H₂₇NO used especially in the form of its hydrochloride for the relief of pain and as a substitute narcotic in the treatment of heroin addiction

Examples of methadone in a Sentence

Recent Examples on the Web

That greater success stems in part from the fact that by engaging the same receptors stimulated by fentanyl and other illicit opioids, buprenorphine (and methadone) can greatly blunt cravings and withdrawal symptoms. —Moises Velasquez-Manoff, New York Times, 17 Feb. 2025

Read More: The Unique Challenges of the Fentanyl Epidemic However, methadone maintenance was deeply controversial. —Melody Glenn, TIME, 30 Jan. 2025

Opioids such as heroin, morphine and methadone were the most common drugs connected to fatalities, being implicated in 937 deaths. —Stephen Castle, New York Times, 10 Jan. 2025

Using anything else is something like substituting methadone for heroin. —Kyle Chayka, The New Yorker, 19 Jan. 2025

Word History

Etymology

methyl + amino + diphenyl + -one

First Known Use

1947, in the meaning defined above

Rhymes for methadone

• acetone
• anglophone
• baritone
• bourguignon
• buspirone
• chaperon
• chaperone
• cobblestone
• collarbone
• cornerstone
• cortisone
• dictaphone

Kids Definition

methadone

noun

meth·​a·​done ˈmeth-ə-ˌdōn 

variants also methadon

-ˌdän 

: a narcotic drug C₂₁H₂₇NO that is used to replace heroin in the treatment of heroin addiction

Medical Definition

methadone

noun

meth·​a·​done ˈmeth-ə-ˌdōn 

variants also methadon

-ˌdän 

: a synthetic addictive narcotic drug used especially in the form of its hydrochloride C₂₁H₂₇NO·HCl for the relief of pain and as a substitute narcotic in the treatment of heroin addiction

called also amidone