Evaluation of behavioral and pharmacological effects of Hedyosmum brasiliense and isolated sesquiterpene lactones in rodents.

Ethnopharmacological Relevance: Hedyosmum brasiliense Miq. (Chloranthaceae) is an essential Brazilian species largely found in the Atlantic Forest. It is popularly known as "cidrão" and in folk medicine, this aromatic species is widely used as a calmative/tranquilizer and to treat sleep disorders.