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Efficacy of a substituted methyl benzimidazole carbamate against developing and adult helminth parasites
Authors:J C Katiyar  A Misra  S Gupta  P K Visen  P K Murthy  A B Sen
Abstract:The efficacy of a substituted methyl benzimidazole carbamate, methyl 5(6)-4-N-(2-pyridyl)] piperazino carbamoyl benzimidazole-2-carbamate, was assessed against larval and adult forms of Ancylostoma ceylanicum (hookworm), Nippostrongylus brasiliensis (trichostrongylid), Hymenolepis nana (tapeworm) and Brugia malayi (filariid) in experimentally-infected animals. The compound was found to have high efficacy against the developing stages (L3, L4, L5) of A. ceylanicum in hamsters at a single dose of 12.5 mg kg-1, against larvae of N. brasiliensis at 17.5 mg kg-1 and against cysticercoids of Hymenolepis nana at 100 mg kg-1 daily for 3 days given per os (p.o.) or intraperitoneally (i.p.). All the stages of B. malayi in Mastomys were killed when the compound was given i.p. at a dose of 6.25 mg kg-1 for 5 consecutive days. A dose of 6.25 mg kg-1 eliminated all adult A. ceylanicum from infected hamsters, 100 mg kg-1 resulted in complete removal of Syphacia obvelata adults from 63.6% of infected mice, 25 mg kg-1 X 5 dose eliminated 100% of adult B. malayi from infected Mastomys and a single 50 mg kg-1 dose expelled all H. nana adults from infected rats.
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