isoniazid
noun
iso·ni·a·zid
ˌī-sə-ˈnī-ə-zəd 
: a crystalline compound C6H7N3O used in treating tuberculosis
Examples of isoniazid in a Sentence
Recent Examples on the Web
Eventually, the trial would determine isoniazid was most effective when used with two other antibiotics.
—
Emilie Le Beau Lucchesi, Discover Magazine, 8 Feb. 2025
Some of the most common include isoniazid, rifampicin, pyrazinamide and ethambutol.
—Melissa Rudy, Fox News, 31 Oct. 2024
Two medications used to treat tuberculosis, isoniazid and pyrazinamide, are known to interfere with how your body converts some tryptophan to niacin.
—Brittany Lubeck, Ms, Rdn, Verywell Health, 1 Aug. 2024
Examples include digoxin, chlorpromazine, and isoniazid.
—Sara Hoffman, Pharmd, Verywell Health, 2 July 2024
But most importantly, when an effective treatment became available, it was disseminated worldwide, and part of that happened because isoniazid was unpatentable, so costs for producing it and treating people with it remained low.
—Brianne Kane, Scientific American, 17 Oct. 2023
In this fashion, certain derivatives of hydrazine were discovered to be effective against Mycobacterium tuberculosis infection in mice, including the famous drug isoniazid, which is still used to this day as part of the standard treatment regimen for the lung infection.
—Rebecca Kreston, Discover Magazine, 27 Jan. 2016
Note:To be specific, XDR-TB is resistant to the two first-line drugs, isoniazid and rifampin, used to treat TB initially, plus any fluoroquinolone and at least one of three injectable second-line drugs (i.e., amikacin, kanamycin, or capreomycin).
—Rebecca Kreston, Discover Magazine, 7 Mar. 2013
Apolisi, together with a physician colleague, ensures that children in close contact with her TB patients take the daily preventive medication isoniazid for at least six months, as recommended by the WHO.
—Sofia Moutinho, Scientific American, 14 May 2022
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Emilie Le Beau Lucchesi, Discover Magazine, 8 Feb. 2025
Some of the most common include isoniazid, rifampicin, pyrazinamide and ethambutol.
—Melissa Rudy, Fox News, 31 Oct. 2024
Two medications used to treat tuberculosis, isoniazid and pyrazinamide, are known to interfere with how your body converts some tryptophan to niacin.
—Brittany Lubeck, Ms, Rdn, Verywell Health, 1 Aug. 2024
Examples include digoxin, chlorpromazine, and isoniazid.
—Sara Hoffman, Pharmd, Verywell Health, 2 July 2024
But most importantly, when an effective treatment became available, it was disseminated worldwide, and part of that happened because isoniazid was unpatentable, so costs for producing it and treating people with it remained low.
—Brianne Kane, Scientific American, 17 Oct. 2023
In this fashion, certain derivatives of hydrazine were discovered to be effective against Mycobacterium tuberculosis infection in mice, including the famous drug isoniazid, which is still used to this day as part of the standard treatment regimen for the lung infection.
—Rebecca Kreston, Discover Magazine, 27 Jan. 2016
Note:To be specific, XDR-TB is resistant to the two first-line drugs, isoniazid and rifampin, used to treat TB initially, plus any fluoroquinolone and at least one of three injectable second-line drugs (i.e., amikacin, kanamycin, or capreomycin).
—Rebecca Kreston, Discover Magazine, 7 Mar. 2013
Apolisi, together with a physician colleague, ensures that children in close contact with her TB patients take the daily preventive medication isoniazid for at least six months, as recommended by the WHO.
—Sofia Moutinho, Scientific American, 14 May 2022
Cite this Entry
“Isoniazid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isoniazid. Accessed 16 Mar. 2025.
Copy CitationMedical Definition
isoniazid
noun
iso·ni·a·zid
ˌī-sə-ˈnī-ə-zəd
: a crystalline compound C6H7N3O used in treating tuberculosis
called also isonicotinic acid hydrazide
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