The Comparison of the anti Limnatis nilotica effects of albendazole and some of the Iranian medicinal plants.

Background: Aquatic leech invade mucosal membrane and causes anemia. Until now, there is not any commercial effective drug for controlling of this parasite. In this experimental study, investigated the effect of some chemical and herbal drugs against leech (Limnatis nilotica). Methods: Methanolic extract of Artemisia kermanensis and Artemisia spp and hydroalcoholic extracts of Scrophularia deserti, Quercus brantii and Achillea spp was prepared. . Each drugs was tested in one group with 9 replicates. Each leech preserve in one separated jar and drugs were added to each jar. Albendazole used as commercial anti-parasite and distilled water was used as negative control. The movement and respond of each Leech was recorded for 720 minutes. Also, the leeches were monitored for paralysis and death in this duration. Results: In this study, leeches receiving albendazol (600mg) died at 138 min after exposure with albendazol. But exposure with methanolic extracts of Artemisia kermanensis (600 mg), Artemisia spp (600 mg) and hydroalcoholic extracts of Quercus brantii (600 mg), Achillea spp (600 mg) and Scrophularia deserti (600 mg) have no effect on liviability of leeches. Methanolic extract of Artemisia kermanensis with doses of 1800 and 2400 mg, caused death in leeches after 720, 635 and 188 minutes, respectively. Also, methanolic extracts of Arthemisia spp with doses of 1200, 1800 and 2400 mg, caused death in leeches after 720 , 600 and 601 minutes, respectively. Conclusion: This study demonstrated that the herbal drugs that used in this study with compare to albendazole have no considering effect on Limniatis nilotica. [ABSTRACT FROM AUTHOR]