Abstract
Daraprim (5-(p-chlorophenyl)-2,4-diamino-6-ethylpyrimidine) is an antagonist of the folic-folinic acid group of vitamins. Its success as a chemotherapeutic against certain bacteria and several species of plasmodia may be due to this action. The drug seems to act as an antimetabolite and prevents the folic acid contribution to the formation of nucleic acid from developing. Nuclei cannot function properly in metabolic activities, especially those of mitosis, without the proper nucleic acid formation. Daraprim seems to interfere with the multiplication of bacteria and of gametocytes of the plasmodia[long dash]possibly because of this antifolic reaction.