immunosuppressant
noun
im·mu·no·sup·pres·sant
ˌi-myə-nō-sə-ˈpre-sᵊnt 
i-ˌmyü-nō-
plural immunosuppressants
: an agent (such as a drug) that suppresses the immune response
The drug was a strong immunosuppressant and was lowering the rats' T-cell counts, making them more vulnerable to infections.—
Chip Brown
Chip Brown… a highly specific immunosuppressant that prevents patients from rejecting transplanted tissue.—Barry Werth
Barry Werth
immunosuppressant
adjective
immunosuppressant drugs
Examples of immunosuppressant in a Sentence
Recent Examples on the Web
The group turned to the next potential pairing: a common immunosuppressant that had been flagged as a possible therapy for Alzheimer’s disease.
—Dhruv Khullar, New Yorker, 15 July 2025
By the 1990s, immunosuppressants like cyclosporine and tacrolimus opened new possibilities for transplants of multiple tissues.
—Nadia Kounang, CNN Money, 17 May 2025
On the other hand, immunosuppressants like tacrolimus could cause shaking, according to Dr. Guo.
—Caroline Tien, SELF, 7 Apr. 2025
In these cases, since the patient is already going to have surgery and be on immunosuppressants, throwing in a new pancreas to the surgery and curing their diabetes in the same operation that cures their kidney failure begins to look like an attractive option.
—Dylan Matthews, Vox, 7 Dec. 2018
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Dhruv Khullar, New Yorker, 15 July 2025
By the 1990s, immunosuppressants like cyclosporine and tacrolimus opened new possibilities for transplants of multiple tissues.
—Nadia Kounang, CNN Money, 17 May 2025
On the other hand, immunosuppressants like tacrolimus could cause shaking, according to Dr. Guo.
—Caroline Tien, SELF, 7 Apr. 2025
In these cases, since the patient is already going to have surgery and be on immunosuppressants, throwing in a new pancreas to the surgery and curing their diabetes in the same operation that cures their kidney failure begins to look like an attractive option.
—Dylan Matthews, Vox, 7 Dec. 2018
See All Example Sentences for immunosuppressant
Cite this Entry
“Immunosuppressant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immunosuppressant. Accessed 22 Aug. 2025.
Copy CitationMedical Definition
immunosuppressant
1 of 2 noun
im·mu·no·sup·pres·sant
-sə-ˈpres-ᵊnt
: an agent (such as a drug) that suppresses the immune response
The experiments focused on the use of cyclosporine, an immunosuppressant widely used in human kidney, heart-lung, bone marrow, pancreas and liver transplants.—Science News
Science Newsimmunosuppressant
2 of 2 adjective
: immunosuppressive
immunosuppressant effects
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