Brand Names:

Drug Type: Antiprotozoal, Dewormer, Antimalarial, Antiparasitic


Pyrimethamine is an antiparasitic compound used in the treatment of toxoplasmosis and plasmodium infections. Pyrimethamine is a folic acid antagonist and the rationale for its therapeutic action is based on the differential requirement between host and parasite for nucleic acid precursors involved in growth.

Typical Dosage: 0.5 mg/kg given orally, twice a day.
  • Decreases folic acid levels, which will needto be supplemented