Fennel mainly contains anise oil.This can stimulate gastrointestinal nerves.Fennel essential oil promotes blood vessels, enhancing digestive fluid secretion and increasing intestinal peristalsis.It has health benefits like tonifying the stomach and moving qi, which can help relieve spasms and reduce pain.Fenchyl acetate can promote the maturation of bone marrow cells and release them into peripheral blood, having a significant effect on increasing white blood cell count.Primarily it raises the level of neutrophils and is used for leukopenia.

Bupleurum can promote the maturation of bone marrow cells and their release into peripheral blood, significantly increasing white blood cell counts, mainly neutrophils, and is used for leukopenia.