Abstract
Introduction Kampo is a Japanese traditional medicinal system and is represented by unity of mind
and body. It is originally based upon Chinese traditional medicine but has uniquely
developed in Japan.
Methods A narrative review on the use of Kampo for psychiatric conditions is provided.
Results Kampo formula is a combination of several crude ingredients; most derive from natural
plants and some from animals and minerals. These Kampo formulae are widely prescribed
in almost all medical disciplines, including psychiatry, in Japan; they have been
used for various psychiatric disorders such as dementia, schizophrenia spectrum disorders,
mood disorders, anxiety disorders, and personality disorders. Kampo is a versatile
traditional medicine with a variety of positive effects on mental states with relatively
benign side effect profiles. Kampo formulae can be adjunctively combined with or substituted
for the Western psychotropic drugs, which will provide more treatment options to patients
with psychiatric conditions.
Discussion This review summarizes the current knowledge on Kampo for psychiatric conditions,
highlighting a paucity of data and a need for further good-quality evidence on these
medications.
Key words
herbal medicine - Kampo - psychiatric disorder - traditional medicine