Sour jujube kernel has the effect of tranquilizing the mind and can be used for palpitations and dreaming (palpitations when frightened, often dreaming), deficiency annoyance and insomnia (emptiness and irritability, unable to sleep) and so on. Sour jujube kernel, belonging to the liver, gallbladder and heart meridians, is sweet and sour in flavor and flat in nature, and has the effects of nourishing the heart and tonifying the liver, calming the heart and tranquilizing the mind, restraining sweating, and generating fluids. Sour Jujube Seed is often combined with Angelica, Astragalus, Ginseng and other qi and blood tonic medicines to treat deficiency of heart, spleen, qi and blood, tiredness and insomnia, palpitations and restlessness; it is often used in conjunction with Poria, Zhimu and Rhizoma Ligustici Chuanxiong to treat loss of nourishment of the heart, palpitations and dreaming of heart and liver yin and blood deficiency, as well as false annoyance and insomnia. Sour Jujube Seed can also be used for fluid damage and thirst, and excessive sweating. Sour Jujube Seed should be taken with caution if there is evidence of solidity as well as slippery discharge, and adverse effects are not known.