The information provided here is not a replacement for a doctor. You shouldn't use it for the purpose of self-diagnosing or self-medicating but rather so you can have a more informed discussion with a professional TCM practitioner.
In Chinese Medicine neurasthenia can be treated by one herbs that we have on record. Here is the list below.
Because it is a herb specifically indicated to treat neurasthenia as can be seen on Dogbane Leaf's page.
Dogbane Leaves is a Cool herb that tastes Sweet. It targets the Liver.
Its main actions are: Pacifies Liver's hyperactivity and smoothes the Mind. Removes Heat and helps urination.