The efficacy of Four Substance Soup and the best time to drink it

Four Substances Soup has the effect of tonifying and nourishing Blood (补養血液), and can be taken once in the morning on an empty stomach and once in the evening before going to bed under the guidance of a Traditional Chinese Medicine (TCM) practitioner to identify the symptoms.
Four Substances Soup mainly contains Angelica sinensis, Rhizoma Ligustici Chuanxiong, Radix Paeoniae Alba and Radix Rehmanniae Praeparata, and is used to treat Blood deficiency, which is characterized by dizziness and dizziness, palpitations (accelerated heartbeat, often accompanied by panic attacks), insomnia, lack of color, irregular menstruation, scanty menstrual periods, or menstrual closure, pain in the umbilicus and abdomen, and a pale tongue, pale lips, and pale fingernails. In this formula, Radix Rehmanniae Praeparata nourishes the Blood, Radix Angelicae Sinensis nourishes Blood and invigorates Blood, Radix Paeoniae Alba nourishes Blood and astringes Yin, Rhizoma Ligustici Chuanxiong invigorates Blood and promotes Qi circulation.
Four Substances Tang should not be used if there is an abundance of dampness in the middle of the body (too much dampness leading to fullness and discomfort in the spleen and stomach), or if there are loose stools.
Four Substances Tang, as a Chinese medicine, should be used under the supervision of a doctor and should not be used on one’s own.