Nurtures heart blood and yin, calms shen, sedates deficiency-heat of the heart. Use for insomnia, restlessness, anxiety, palpitations, and vivid dreaming. Also useful in hyperactive thyroid and nocturnal emission. Source: Shi Yi De Xiao Fang, (Effective Formulas Tested by Physicians for Generations), Yuan Dynasty, 1279-1368. Function: Nourish Yin; Clear Heat and tonify heart; calm the spirit Application: It is use to relieve empty fire due to def. kidney and heart yin. Symptoms: Palpitations, restlessness, uneasiness, insomnia, poor memory, short attention span, poor concentration, constipation, mouth and tongue ulcers. The tongue is red with little or no tongue coating; the pulse is thin and rapid. Applications also include the following: (Use this formula only in cases who have the above-mentioned empty fire symptoms due to def. kidney and heart yin.) Rheumatic valvular heart disease. This formula will help to reduce the palpitations and other symptoms listed under nourish yin and clear heat.) Hyperthyroidism, neurasthenia, menopausal symptoms.