isotretinoin

American

[ahy-soh-tri-tin-oh-in, -oin] / ˌaɪ soʊ trɪˈtɪn oʊ ɪn, -ɔɪn /

noun

Pharmacology.

a yellowish-orange to orange crystalline powder, C 20 H 28 O 2 , used in the treatment of cystic acne.

isotretinoin British

/ ˌaɪsəʊtrəˈtɪnəʊɪn /

noun

a drug related to vitamin A, used to treat severe acne that has failed to respond to other treatment

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of isotretinoin

iso- + tretinoin a name for retinoic or Vitamin A acid, equivalent to t- (of uncertain derivation) + retino(ic acid) ( retin(ol) + -o- + -ic ) + -in ²

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

isotretinoin

The commission's review into the drug, also known as isotretinoin, concluded its benefits outweighed the risks.

From BBC ● Apr. 27, 2023

At the inquest in December 2021 into the teenager's death, coroner Jonathan Leach concluded there was "no evidence" it was "caused or contributed to by isotretinoin".

From BBC ● Apr. 27, 2023

The researchers tested that explanation by feeding mice isotretinoin, a derivative of vitamin A that increases RELMa synthesis, and then tallying how many mosquitoes bit the animals.

From Science Magazine ● Jun. 30, 2022

Although that brand is no longer available, dermatologists can still prescribe isotretinoin.

From Seattle Times ● Apr. 6, 2022

The prescription drug isotretinoin significantly reduces the amount of sebum produced by the sebaceous glands, and is used to treat acne.

From Textbooks ● Jan. 1, 2015

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023