title: Efficacy of mebendazole and albendazole against Trichinella spiralis in mice.
abstract: Changes in the sensitivity of Trichinella spiralis to anthelmintic treatment during the first 3 days of infection in mice were studied. Oral administration of either mebendazole or albendazole at 6.25 mh/kg 2 hr after exposure to infection eliminated 95-100% of the worms as determined at necropsy on day 7 postinoculation. Beyond the first day of infection the sensitivity of the parasite to benzimidazole therapy was much reduced and an oral dose of 50 mg/kg was only partially but significantly active against the adult worms. Despite decline in drug sensitivity during the enteral phase, gavage administration of either mebendazole or albendazole at 50 mg/kg for 5 consecutive days during the invasive phase of infection significantly reduced (96 and 67%, respectively) the number of larvae subsequently recovered from host musculature on day 45 postinoculation.
mesh_terms: D000284:Administration, Oral; D000818:Animals; D001562:Benzimidazoles / Q000008:administration & dosage / Q000627:therapeutic use*; D008297:Male; D008463:Mebendazole / Q000008:administration & dosage / Q000627:therapeutic use*; D051379:Mice; D014235:Trichinellosis / Q000188:drug therapy* / Q000469:parasitology
chemical_list: D001562:Benzimidazoles; D008463:Mebendazole