pyrimethamine

[ pahy-ruh-meth-uh-meen, -min ]

noun

, Pharmacology.

1. a potent substance, C 1 2 H 1 3 ClN 4 , used against susceptible plasmodia in the prophylactic treatment of malaria and against Toxoplasma gondi in the treatment of toxoplasmosis.

Word History and Origins

Origin of pyrimethamine¹

First recorded in 1950–55; pyrim(idine) + eth(yl) + -amine

Example Sentences

So while participants who got chloroquine might develop malaria symptoms, those who get pyrimethamine wouldn’t, Cook says.

From Science News

A dose of pyrimethamine protected only two out of nine people.

From Science News