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Objective: To investigate phytochemicals constituents and check the anthelmintic activities of Maesa lanceolata (M. lanceolata) solvent extracts against aquatic leech. Methods: Several phytochemicals were tested and screened from petroleum ether, chloroform and methanol extracts of M. lanceolata extracts and their anthelmintic activities were done based on the standard procedure against aquatic leech. Piperazine citrate (20 mg/mL) was used as a reference standard while distilled water was used as a control. Results: Qualitative phytochemical analysis of different solvent (petroleum ether, chloroform and methanol) extracts of M. lanceolata revealed the presence of flavonoids and alkaloids in chloroform extracts and alkaloids in methanol extracts. In addition to the qualitative analysis of the plant extracts, the anthelmintic effects were also evaluated against aquatic leech (Lymnatis nilotica). Accordingly, various concentrations (10, 20, 40 and 60 mg/mL) of each solvent (petroleum ether, chloroform and methanol) extracts and 20 mg/mL of standard drug were prepared and tested against the selected leech. All the tested concentrations showed anthelmintic activities in a dose-dependent manner. From petroleum ether, chloroform and methanol extracts, chloroform extracts with 60 mg/mL concentration was effective with the paralytic time of (29.00 ± 1.06) min and death time of (65.00 ± 2.00) min in gradient extraction method. But in the case of extraction without gradient method, methanol extracts with 60 mg/ mL concentration showed effective paralysis and death time (26.00 ± 1.73) and (56.00 ± 1.56) min, respectively, against the selected aquatic leech. Conclusions: The present study revealed that M. lanceolata extracts have magic anthelmintic activities which are helpful to treat aquatic leeches (Lymnatis nilotica) which are associated with the nasal cavities of animals and human beings.

journal of coastal life medicine

Preliminary phytochemical investigation and in vitro anthelmintic activities of Maesa lanceolata solvent extracts against Lymnatis nilotica (aquatic leech)