Wikipedia: Chasteberry - Article covering the cultivation, herbal and medical uses. NCCIH - Chasteberry - Covers the side effects and caution towards this herb. References available. Sloan-Kettering - Chasteberry - Includes information on uses, constituents and mechanism of action. Loyola Medicine: Vitex agnus castus - Article focused on the herb's dosage, warnings and side effects. American Academy of Family Physicians - Presents the uses and efficacy of this herb. Whole Health Chicago - Cautions, benefits, and dosage information towards chasteberry (botanically known as Vitex agnus-castus). Nurse's Guide To Herbal Remedies - Uses, dosage, and nursing considerations regarding chasteberry. Summit Medical Group - Frequently asked questions covering the uses and side effects involved with chasteberry. Diagnose me - Chasteberry - Uses, history and why is it recommended.