The effect of Ganmai Jujube Decoction is to nourish the heart and soothe the nerves, and to tonify the spleen and replenish qi. The dosage is usually three ounces of licorice, one liter of wheat and ten dates. There is no special restriction on the time of taking, but it is generally recommended to take it before meals or before going to bed, and the effect is better. Please note that everyone's physique and illness are different, and the specific dosage and taking time should be adjusted according to the doctor's advice.