Efficacy and Safety of Chinese Herbal HuoXue LiShui Formula for Chronic Subdural Hematoma

The intervention consists of the oral administration of granule with either HXLS or a placebo substance, one bag (28.5 g) twice daily after meals for a period of 8 weeks. The granules are produced from four Chinese herbal pieces: Yi Mu Cao (Leonuri Herbal, 15.0g), Zhi Shui Zhi (Hirudo, 1.5g), Tao Ren (Semen persicae, 6.0g), and Hong Hua (Carthami Flos, 6.0g).

The placebo will be consistent with the HXLS oral granules in appearance, taste, and weight, to the greatest extent possible. In terms of outer packing, the HXLS and placebo granules will be exactly the same. It included Hu Jing (28.5g)