Anxiolytic-like effects of acute and chronic treatment with Achillea millefolium L. extract.

Ethnopharmacological Relevance: Achillea millefolium L. (Asteraceae), known as yarrow ("mil folhas"), has been used as folk medicine for gastrointestinal disorders, inflammation, anxiety, and insomnia.

Aim: To evaluate the potential anxiolytic-like effect of hydroalcoholic extract of Achillea millefolium L.