Antimalarial drug used for causal prophylaxis act at which stage of developmental cycle
(A) Gametogony (B) Erythrocytic schizogony (C) Pre-erythrocytic schizogony (D) Exo-erythrocytic schizogony
(C) Ans. C. Pre-erythrocytic schizogonyPre-erythrocytic schizogony* Occurs inside the parenchymal cells of liver.* Merozoites are liberated into blood.* Drugs acting on this stage will prevent infection of RBC and clinical attack of malaria causal prophylaxis.* Drugs are* Proguanil & Tetracycline - for falciparum.