Four Substances Tang is a medicine for tonifying blood and camping, and is recommended to be taken on an empty stomach, once before breakfast and once before dinner.
Four Substances Soup is composed of four medicines: Angelica sinensis, Radix Paeoniae Alba, Radix Rehmanniae Praeparata and Rhizoma Ligustici Chuanxiong, and can be used to treat palpitations, insomnia, dizziness, lack of color, lethargy and weakness, irregular menstruation, amenorrhea, and umbilical and abdominal pain in women caused by a deficiency of blood.
The adverse effects and contraindications of Si Wu Tang are not known precisely, and pregnant women need to take it with caution. There is no prescribed time of day to take Si Wu Tang, it can be taken once before breakfast and once before dinner.
Taking Si Wu Tang requires the guidance and assistance of a professional Chinese medicine doctor.