Antiparasitic drugs function through various mechanisms. For instance, albendazole disrupts microtubule formation in helminths, impairing their ability to absorb nutrients. Metronidazole, on the other hand, generates free radicals that damage DNA in anaerobic protozoans. These cellular disruptions can be observed under a microscope in histological samples, where treated parasites often show signs of structural damage or degeneration.
