ben·​zo·​caine | \ ˈben-zə-ˌkān How to pronounce benzocaine (audio) \

Definition of benzocaine

: a white crystalline ester C9H11NO2 used as a local anesthetic

Examples of benzocaine in a Sentence

Recent Examples on the Web Libby warns not to use lidocaine or benzocaine sprays. Jennifer Aldrich, Better Homes & Gardens, "The Best Ways to Treat a Sunburn, According to a Dermatologist," 4 June 2020 Last year, the Food and Drug Administration warned that over-the-counter drugs containing benzocaine should not be used to treat infants or kids younger than two years old for this very reason. Beth Mole, Ars Technica, "Blueish woman with chocolaty blood highlights rare risk of common anesthetic," 23 Sep. 2019 Numbing medication caused her reaction In his patient’s case, her reaction was caused by benzocaine, an active ingredient found in over-the-counter toothache and cold sore medicine. Wire Service, The Mercury News, "A woman used a numbing agent to treat a toothache. The next day her blood turned blue," 19 Sep. 2019 The case spurred Warren to keep an eye for products containing benzocaine. NBC News, "A common numbing medication turned a woman's blood blue," 18 Sep. 2019 Stay away from teething tablets that contain the plant poison belladonna and gels with benzocaine. Marisa Lascala, Good Housekeeping, "When Do Babies Start Teething? The Facts Every Parent Should Know," 9 Aug. 2019 Teething products with benzocaine include Baby Orajel. Washington Post, "FDA warns teething medicines unsafe, wants them off shelves," 23 May 2018 Common over-the-counter products containing the numbing agent benzocaine can pose serious health risks to infants, with little to no benefits. Caroline Picard, Good Housekeeping, "Don't Use Baby Teething Medicine With Benzocaine, the FDA Warns," 23 May 2018 Parents have always been overwhelmed by babies crying from teething and have used some truly awful, dangerous methods to stop the pain such as drinking alcohol, paregoric (a strong opioid), and now benzocaine., "Why it's time to abandon teething medications," 7 June 2018

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

See More

First Known Use of benzocaine

1907, in the meaning defined above

History and Etymology for benzocaine

International Scientific Vocabulary benz- + -caine

Keep scrolling for more

Learn More about benzocaine

Time Traveler for benzocaine

Time Traveler

The first known use of benzocaine was in 1907

See more words from the same year

Statistics for benzocaine

Cite this Entry

“Benzocaine.” Dictionary, Merriam-Webster, Accessed 19 Jan. 2021.

Keep scrolling for more

More Definitions for benzocaine


ben·​zo·​caine | \ ˈben-zə-ˌkān How to pronounce benzocaine (audio) \

Medical Definition of benzocaine

: a white crystalline ester C9H11NO2 used as a local anesthetic

called also ethyl aminobenzoate

Comments on benzocaine

What made you want to look up benzocaine? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Words of Snow and Ice Quiz

  • image1037863653
  • Which of the following refers to thin, bending ice, or to the act of running over such ice?
True or False

Test your knowledge - and maybe learn something along the way.


Anagram puzzles meet word search.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!