sulfa drug
noun
: any of various synthetic organic bacteria-inhibiting drugs that are sulfonamides derived especially from sulfanilamide
Examples of sulfa drug in a Sentence
Recent Examples on the Web
But with the availability of sulfa drugs and, later, penicillin, a doctor’s visit became more likely to prolong a life than shorten it.
—
Robert Pearl,
Twin Cities,
2 Nov. 2025
Stevens-Johnson syndrome can be triggered by any medication or infection, although certain drugs such as seizure medications, gout medications and antibacterial sulfa drugs carry a higher risk.
—
Asuka Koda,
CNN Money,
15 Sep. 2025
It is not recommended for people allergic to sulfa drugs, pregnant individuals, or infants under 2 months.
—
Brendan Camp,
Verywell Health,
23 July 2025
This is also true of multiple oral antibiotics in the class known as sulfa drugs.
—
Claudia Wallis,
Scientific American,
1 Jan. 2020
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Robert Pearl,
Twin Cities,
2 Nov. 2025
Stevens-Johnson syndrome can be triggered by any medication or infection, although certain drugs such as seizure medications, gout medications and antibacterial sulfa drugs carry a higher risk.
—
Asuka Koda,
CNN Money,
15 Sep. 2025
It is not recommended for people allergic to sulfa drugs, pregnant individuals, or infants under 2 months.
—
Brendan Camp,
Verywell Health,
23 July 2025
This is also true of multiple oral antibiotics in the class known as sulfa drugs.
—
Claudia Wallis,
Scientific American,
1 Jan. 2020
Cite this Entry
“Sulfa drug.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sulfa%20drug. Accessed 3 Jul. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
