It is a brown powder, made from the dried whole herb of Verbena officinalis, extracted by heating and decocting with water as the solvent, and the extract is concentrated and spray dried to obtain the powder product. Verbena officinalis extract is a kind of blood activator and blood stasis remover, with the following functions: activating blood circulation, dispersing blood stasis, intercepting malaria, detoxifying, inducing diuresis and reducing swelling. It is used for purpura, menorrhagia, malaria, laryngeal paralysis, carbuncle, edema and pyorrhea.