<prompt> All are true regarding chloroquine, except ?Acts only on exo erythrocytic cycleActs on DNA and RNA of parasiteCauses pigmentation of nail and mucosaInfected RBC has more drug  <response>: Ans. is a i.e., Acts only on exoerythrocytic cycle o It is a rabidly acting erythrocytic Schizontacide against all species of plasmodium. o It has no effect on pre and exoerythric stage. 