antiparasitic

adjective

an·​ti·​par·​a·​sit·​ic ˌan-tē-ˌper-ə-ˈsi-tik 

-ˌpa-rə-, 

ˌan-tī-

variants or anti-parasitic

: acting against parasites : used or intended to kill, repel, or remove parasites

antiparasitic drugs/medicine

antiparasitic noun

or anti-parasitic

Most consumer spending is still on traditional pet medications like antiparasitics …

—James Vlahos

Examples of antiparasitic in a Sentence

Recent Examples on the Web

Doctors are urged to consider lungworm when diagnosing nervous system disorders, as early treatment with corticosteroids and antiparasitic drugs can be effective. —Susanne Rust follow, Los Angeles Times, 6 Mar. 2026

Similarly, the companies GlaxoSmithKline and Eisai respectively donate the antiparasitic medications albendazole and diethylcarbamazine citrate for these campaigns. —Philip Budge, The Conversation, 5 Mar. 2026

One of his young male patients recently refused chemotherapy in favor of ivermectin and another antiparasitic drug, fenbendazole, to treat his Stage 4 cancer. —Yuki Noguchi, NPR, 2 Mar. 2026

The antiparasitic drug gained notoriety during the Covid-19 pandemic. —Joshua P. Cohen, Forbes.com, 12 Feb. 2026

Word History

First Known Use

1857, in the meaning defined above

Rhymes for antiparasitic

• autocatalytic
• photocatalytic
• psychoanalytic
• analytic
• anxiolytic
• astrocytic
• austenitic
• catalytic
• cytolytic
• dioritic
• diphtheritic
• dolomitic

Medical Definition

antiparasitic

adjective

an·​ti·​par·​a·​sit·​ic ˌant-i-ˌpar-ə-ˈsit-ik, ˌan-ˌtī- 

: acting against parasites

antiparasitic drugs