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

Many others promoted ivermectin as a treatment, using the incident as a way to sell emergency medical kits featuring the antiparasitic drug typically used as a horse dewormer. — David Gilbert, Wired News, 12 May 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

Prescriptions for an antiparasitic drug spiked for cancer patients after a celebrity endorsed the medication during a recent episode of Joe Rogan’s podcast. — Melissa Rudy, FOXNews.com, 13 May 2026

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

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