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phenytoin

American  
[fen-i-toh-in, fuh-nit-oh-] / ˌfɛn ɪˈtoʊ ɪn, fəˈnɪt oʊ- /

noun

Pharmacology.
  1. a barbiturate-related substance, C 1 5 H 1 2 N 2 O 2 , used as an anticonvulsant in the treatment of grand mal epilepsy and in focal seizures.


phenytoin British  
/ ˌfɛnɪˈtəʊɪn /

noun

  1. Also called: diphenylhydantoin sodium.  an anticonvulsant drug used in the management of epilepsy and in the treatment of abnormal heart rhythms. Formula: C 15 H 11 N 2 O 2 Na

"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 phenytoin

1940–45; (di)pheny(lhydan)toin, its full chemical name; see di- 1, phenyl, hydantoin

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:

Conversely, the antiepilepsy drugs phenytoin and carbamazepine can stimulate production of even more metabolic enzymes than usual.

From Salon Oct. 10, 2021

Lamotrigine, which can be marketed as Lamictal, is listed as a possible cause of SJS, along with other medications used to treat seizures such as carbamazepine and phenytoin.

From Fox News Feb. 12, 2019

And other teams are pursuing different avenues, with a group at University College London studying a drug called phenytoin, which has already been used to treat epilepsy for 60 years.

From Scientific American Sep. 28, 2015

The ketogenic diet fell out of favour from 1938, following the availability of a drug called phenytoin that controls the brain's electrical activity and helps to reduce the frequency of seizures.

From Nature Jul. 8, 2014

Analysis of his blood after death showed it contained at least six times the expected level of phenytoin.

From BBC Dec. 12, 2012

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