Si Wu Tang 
English Name: Four Ingredient Decoction.
Category: Tonifying – Blood Tonifying.
Functions: To tonify and nourish the Blood and regulate the Liver.
Indications: Si Wu Tang is indicated for both deficiency and stagnation of Qi and deficiency and stagnation of Blood. This typically presents with palpitations, insomnia, dizziness, blurred vision, tinnitus, pale complexion, menstrual disorders and lower abdominal pain.
Tongue and Pulse: The tongue is pale and the pulse is thready.
Ingredients:
- Shu Di Huang [Radix Rehmanniae Praeparatae] – 12g
- Dang Gui [Radix Angelicae Sinensis] – 9g
- Bai Shao Yao [Radix Paeoniae Alba] – 9g
- Chuan Xiong [Rhizoma Ligustici Chuanxiong] – 6g
Cautions and Contra-Indications: Not suitable for women with menstrual disorders manifesting as stabbing abdominal pain due to Blood stagnation or Qi exhaustion concomitant with metrorrhagia. It should also be avoided in cases of poor appetite and diarrhoea due to Spleen-Yang deficiency.