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-as of [2 MARCH 2024]–
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(from anti- ‘against’ / pyretic ‘feverish’)
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*TYPES* —>
“quinine”
(alkaloid)
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An antipyretic is a substance that reduces fever
Antipyretics cause the hypothalamus to override a prostaglandin-induced increase in temperature.
The body then works to lower the temperature, which results in a reduction in fever.
Most antipyretic medications have other purposes.
The most common antipyretics in the United States are ibuprofen and aspirin, which are nonsteroidal anti-inflammatory drugs (NSAIDs) used primarily as analgesics (pain relievers), but which also have antipyretic properties;
and paracetamol (acetaminophen), an analgesic with weak anti-inflammatory properties.[2]
There is some debate over the appropriate use of such medications, since fever is part of the body’s immune response to infection.[3][4]
A study published by the Royal Society claims that fever suppression causes at least 1% more influenza deaths in the United States, or 700 extra deaths per year.
Non-pharmacological treatment[edit]
Bathing or sponging with lukewarm or cool water can effectively reduce body temperature in those with heat illness, but not usually in those with fever.[6]
The use of alcohol baths is not an appropriate cooling method, because there have been reported adverse events associated with systemic absorption of alcohol
Medications[edit]
Many medications have antipyretic effects and thus are useful for fever, but not in treating illness, including:
NSAIDs
such as ibuprofen, naproxen, ketoprofen, and nimesulide, Aspirin,
and related salicylates
such as choline salicylate, magnesium salicylate, and sodium salicylate, Phenazone (antipyrine),
available in combination with benzocaine as an ear drop in the US.
Nabumetone
Paracetamol (acetaminophen)
Metamizole,
banned in over 30 countries for causing agranulocytosis
Children[edit]
The U.S. Food and Drug Administration (FDA) notes that improper dosing is one of the biggest problems in giving acetaminophen (paracetamol) to children.[8]
The effectiveness of acetaminophen alone as an antipyretic in children is uncertain, with some evidence showing it is no better than physical methods.[9]
Therapies involving alternating doses of acetaminophen and ibuprofen have shown greater antipyretic effect than either drug alone.[10]
One meta-analysis indicated that ibuprofen is more effective than acetaminophen in children at similar doses when both are given alone.[11]
Due to concerns about Reye syndrome, it is recommended that aspirin and combination products that contain aspirin not be given to children or teenagers during episodes of fever-causing illnesses
Plants
Traditional use of higher plants with antipyretic properties is a common worldwide feature of many ethnobotanical cultures.
In ethnobotany, a plant with naturally occurring antipyretic properties is commonly referred to as a febrifuge
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References
^ “Definition of antipyretic”. Merriam-Webster Online Dictionary. Retrieved 2007-12-19.
^ “Acetaminophen,” National Center for Biotechnology Information, U.S. National Library of Medicine. Modified 2016-08-07, Accessed 2016-08-16.
^ “Mayo Clinic”.
^ “Medline Plus”.
^ Kupferschmidt, Kai (2014-01-21). “Fight the Flu, Hurt Society?”. ScienceNow.
^ “UpToDate Inc”.
^ Sullivan, J. E.; Committee On, H. C.; Sullivan, J. E.; Farrar, H. C. (2011). “Fever and Antipyretic Use in Children”. Pediatrics. 127 (3): 580–587. doi:10.1542/peds.2010-3852. PMID 21357332.
^ Reducing Fever in Children: Safe Use of Acetaminophen
^ Meremikwu M, Oyo-Ita A (2002). Meremikwu MM (ed.). “Paracetamol for treating fever in children”. The Cochrane Database of Systematic Reviews (2): CD003676. doi:10.1002/14651858.CD003676. PMC 6532671. PMID 12076499. Trial evidence that paracetamol has a superior antipyretic effect than placebo is inconclusive.
^ E. Michael Sarrell, MD; Eliahu Wielunsky, MD; Herman Avner Cohen, MD (2006). “Antipyretic treatment in young children with fever: acetaminophen, ibuprofen, or both alternating in a randomized, double-blind study”. Archives of Pediatrics & Adolescent Medicine. 160 (2): 197–202. doi:10.1001/archpedi.160.2.197. PMID 16461878.
^ Kauffman, Ralph; Sawyer, L.A.; Scheinbaum, M.L. (1992). “Antipyretic Efficacy of Ibuprofen vs Acetaminophen”. American Journal of Diseases of Children. 146 (5): 622–625. doi:10.1001/archpedi.1992.02160170102024. PMID 1621668.
^ CDC Study Shows Sharp Decline in Reye’s Syndrome among U.S. Children Archived November 15, 2014, at the Wayback Machine
^ Reye’s syndrome – Prevention
^ Schultes, Richard Evans; Raffauf, Robert F. (1994). “De Plantis Toxicariis e Mundo Novo Tropicale Commentationes XXXIX Febrifuges of northwest Amazonia”. Harvard Papers in Botany. 1 (5): 52–68. ISSN 1043-4534. JSTOR 41761491.
en.wikipedia.org /wiki/Antipyretic
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