Anthelmintic activity of water extracts of calyces of Hibiscus sabdariffa using Lumbricus terrestris as a test worm

The present study was designed to evaluate the anthelmintic activity of water-soluble extracts of fresh calyces of Hibiscus sabdariffa (Malvaceae) using Lumbricus terrestris as a test worm. The worms were exposed to water extracts of different concentrations of H. sabdariffa (6.25, 12.5, 25, and 50 mg/ml) and the times of paralysis and death of the worms were recorded. Vermox was used a positive control and distilled water was used as a negative control.