 Antiparasitic treatment is most effective early in the course of infection , but is not limited to cases in the acute phase . Drugs of choice include azole or nitro derivatives , such as benznidazole or nifurtimox . Both agents are limited in their capacity to completely eliminate T. cruzi from the body ( parasitologic cure ) , especially in chronically infected patients , and resistance to these drugs has been reported . 
 Antiparasitic treatment <a href='drop_aux' title='1'><mark>is</mark></a>most effective early in the course of infection , but is not limited to <a href='negative_concord' title='2'><mark>cases</mark></a> in the acute phase . Drugs of choice include azole or nitro derivatives , such as benznidazole or nifurtimox . Both agents are limited in their capacity to completely eliminate T. cruzi from the body ( parasitologic cure ) , especially in chronically infected patients , and resistance to these drugs <a href='been_done' title='3'><mark>has</mark></a> been reported . 
Antiparasitic treatment most effective early in the course of infection , but ain't limited to no cases in da acute phase . Drugs of choice include azole or nitro derivatives , such as benznidazole or nifurtimox . Both agents are limited in their capacity to completely eliminate T. cruzi from tdabody ( parasitologic cure ) , especially in chronically infected patients , and resistance to these drugs done been reported .