1, Vitex negundo is the dried and mature fruit of Vitex negundo of Verbenaceae. Its nature is pungent, bitter and slightly cold, and it belongs to bladder, liver and stomach meridians. The effect is to dispel wind and heat and clear the head.

2, wind-heat cold, dizziness and headache. This product is pungent in dispelling wind, slightly cold and clearing away heat, and it is frivolous in ascending direction, weak in relieving exterior symptoms, clear the head, and dispel evil in head and face. It is mostly used for patients with dizziness and headache caused by wind-heat cold.

3, redness and swelling of the eyes, tinnitus and deafness, this product is hard, slightly cold, has the effect of dispersing wind-heat and clearing the head, and can be used to treat wind-heat attack, redness and swelling of the eyes, dizziness and tears. Often used with chrysanthemum and cicada slough.

4. It can also be used to treat rheumatism and joint pain, and has the function of expelling wind and relieving pain. This product is equivalent to Notopterygium incisum and Radix Angelicae Pubescentis.