Figure 1: Effect of Mercurius solubilis on (a) latency time (s), (b and c) mean path length (cm) in memory impaired (dementic) Sprague–Dawley rats. Memory deficit was induced by intracerebroventricular administration of streptozotocin (3 mg/kg) and treated with different potencies of Mercurius solubilis (6, 30, 200, and 1M) for 17 days in rats. Latency time and path length were evaluated by Morris water maze test on 14^th, 15^th, and 16^th day (*P < 0.05, **P < 0.01, ***P < 0.01 vs. acquisition trial)