suc·​ci·​nyl·​cho·​line ˌsək-sə-nᵊl-ˈkō-ˌlēn How to pronounce succinylcholine (audio)
: a basic compound that is used intravenously chiefly in the form of a hydrated chloride C14H30Cl2N2O4·2H2O as a muscle relaxant in surgery

Example Sentences

Recent Examples on the Web At the time of his death, Hall was allegedly found with a vial of succinylcholine in her pocket, which she was not certified to administer, prosecutors say. Tristan Balagtas, Peoplemag, 27 Feb. 2023 An autopsy of Franco's body found samples of succinylcholine and morphine, which were not prescribed or ordered for her by her doctors. Fox News, 11 May 2022 At least nine suspicious deaths and 18 suspicious medical emergencies at Hedrick Medical Center during that time period were suspected overdoses of succinylcholine or other drugs. Fox News, 11 May 2022 In the syringe was an overdose of succinylcholine, a muscle relaxer. Elizabeth Zavala,, 9 Sep. 2019 Chelsea's body is exhumed; tests show presence of a muscle relaxant, succinylcholine. San Antonio Express-News, 18 Apr. 2018 McClellan-Wiese would learn later that the nurse had injected her daughter with a drug called succinylcholine, which causes muscle relaxation and short term paralysis. Ralph Ellis, Randi Kaye And Dakin Andone, CNN, 26 May 2017 A PETA investigation into the unlawful use of a paralytic drug at two roadside zoos revealed that animals were administered the drug, succinylcholine, without pain meds. Image Courtesy Usda, National Geographic, 1 May 2017 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'succinylcholine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of succinylcholine was in 1950

Dictionary Entries Near succinylcholine

Cite this Entry

“Succinylcholine.” Dictionary, Merriam-Webster, Accessed 20 Mar. 2023.

Medical Definition


suc·​ci·​nyl·​cho·​line ˌsək-sən-ᵊl-ˈkō-ˌlēn, -sə-ˌnil- How to pronounce succinylcholine (audio)
: a basic compound that acts similarly to curare and is used intravenously chiefly in the form of its chloride salt C14H30Cl2N2O4 as a short-acting relaxant of skeletal muscle in surgery

called also suxamethonium

see anectine

More from Merriam-Webster on succinylcholine

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