The document discusses anthelmintic drugs used to treat parasitic worm infections. It outlines the mechanisms of action and uses of common anthelmintics including mebendazole, albendazole, and praziquantel. Mebendazole and albendazole act by inhibiting microtubule synthesis and glucose uptake in parasites. Praziquantel causes leakage of intracellular calcium in worms, leading to paralysis. The drugs treat specific parasitic infections like ascariasis, pinworm, and hookworm diseases.