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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; 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.

Dr. Anwar and his team first treated the microbes with diazepam, phenobarbitone and phenytoin, three anti-seizure drugs already approved by the Food and Drug Administration.

From New York Times

Typically, generic drugs cost a fraction of the branded version because there tend to be several competing suppliers, but in this case, no other company made phenytoin sodium.

From The Wall Street Journal

Chief executive David Fakes said punishing Flynn for selling phenytoin capsules for less than phenytoin tablets "beggars belief".

From Reuters

But the policy led clinicians to forego prescribing carbamazepine at all and instead they began to prescribe phenytoin.

From Nature

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