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isotretinoin

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

noun

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


isotretinoin British  
/ ˌaɪsəʊtrəˈtɪnəʊɪn /

noun

  1. 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.

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

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

Because isotretinoin can cause birth defects if taken during pregnancy, it must be dispensed by a certified specialty pharmacy with precautions in place to prevent pregnant people from taking it.

From Seattle Times • Apr. 6, 2022

Roaccutane, the brand name the drug isotretinoin is most commonly marketed under, is used by about 30,000 people in the UK each year.

From BBC • May 16, 2019

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

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