According to Traditional Chinese Medicine An Shen Bu Xin Wan:
richen blood and calms the mind,
lover fever and removes anxiety,
equals energy "Qi" & "Yin", helps with poor nourish of heart muscle which might occur in dizziness and tinnitus,
helps with palpitations of heart, insomnia and amnesia.
In modern world there are many diseases which symptoms are similar to those, which An Shen can handle exceptionally:
mental fatigue caused by emotional stress,
vascular diseases (arrhythmia, arteriosclerosis of brain blood vessels),
degeneration of neck vertebrae.
An Shen can influence the clinical symptoms of mentioned diseases and not only one of them. Although the symptoms mentioned before cannot be the base for diagnosis, they are very common in clinical cases.
Currently curing those diseases is still very hard and An Shen has a very good results against their symptoms.