antiplatelet
adjective
an·ti·plate·let
ˌan-tē-ˈplāt-lət 
ˌan-tī-
: preventing or inhibiting platelets from adhering to each other
The drugʼs antiplatelet activity reduces the risk of blood clot formation in stroke survivors.
Examples of antiplatelet in a Sentence
Recent Examples on the Web
Clots in arteries are usually treated with antiplatelet agents such as aspirin or clopidogrel, says Chan.
—
Daryl Austin, USA Today, 5 Aug. 2025
Gandy agrees the agency should assess the need for a black box warning that could include every class of drug—such as anticoagulants, tPA, and antiplatelet treatments—that can cause or increase the risk of brain bleeding.
—Bycharles Piller, science.org, 30 Dec. 2022
For example, artery clots that can cause heart attack or stroke are commonly treated with antiplatelet agents like aspirin.
—Gretchen Cuda Kroen, cleveland, 10 Oct. 2022
Regardless of the age, people who were on beta blockers and antiplatelet medications had a number of heart attacks, explained Chen.
—Bydr. Lily Nedda Dastmalchi, ABC News, 20 Aug. 2022
All showed high levels of antiplatelet factor 4 antibodies, which are implicated in autoimmune thrombocytopenia.
—Melissa Healy, Los Angeles Times, 13 Apr. 2021
Patients infected with the virus suffer a greater chance of blood clots due to hyper-reactive platelets, and aspirin is an antiplatelet agent.
—Peter Aitken, Fox News, 8 Nov. 2020
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Daryl Austin, USA Today, 5 Aug. 2025
Gandy agrees the agency should assess the need for a black box warning that could include every class of drug—such as anticoagulants, tPA, and antiplatelet treatments—that can cause or increase the risk of brain bleeding.
—Bycharles Piller, science.org, 30 Dec. 2022
For example, artery clots that can cause heart attack or stroke are commonly treated with antiplatelet agents like aspirin.
—Gretchen Cuda Kroen, cleveland, 10 Oct. 2022
Regardless of the age, people who were on beta blockers and antiplatelet medications had a number of heart attacks, explained Chen.
—Bydr. Lily Nedda Dastmalchi, ABC News, 20 Aug. 2022
All showed high levels of antiplatelet factor 4 antibodies, which are implicated in autoimmune thrombocytopenia.
—Melissa Healy, Los Angeles Times, 13 Apr. 2021
Patients infected with the virus suffer a greater chance of blood clots due to hyper-reactive platelets, and aspirin is an antiplatelet agent.
—Peter Aitken, Fox News, 8 Nov. 2020
Cite this Entry
“Antiplatelet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antiplatelet. Accessed 30 Oct. 2025.
Copy CitationMedical Definition
antiplatelet
adjective
an·ti·plate·let
-ˈplāt-lət
: acting against or destroying blood platelets
antiplatelet drugs
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