- a potent substance, C12H13ClN4, used against susceptible plasmodia in the prophylactic treatment of malaria and against Toxoplasma gondi in the treatment of toxoplasmosis.
Origin of pyrimethamine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- A potent folic acid antagonist used as a prophylactic antimalarial agent against Plasmodium falciparum and in the treatment of toxoplasmosis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.