Kampo and Chinese Herbal Medicine in Practice: Key Differences
Kampo grew out of Chinese medicine but developed separately in Japan. This guide compares how each is prescribed, standardized and studied, without declaring either one better.
Content last updated . This page has not been medically reviewed.
Kampo and Chinese herbal medicine share roots, but they are not the same practice. Kampo is Japan's form of traditional herbal medicine, with roots in ancient Chinese medicine. [1] One research group describes both as rooted in Chinese medicine but notes that "there are stark differences between Japanese and Chinese herbal formulae." [2] This page compares how they work in practice today. It is not a ranking, and it does not suggest that either is a substitute for medical care.
For the Chinese side in depth, see Chinese herbal medicine: what it is and what research shows. For the history of the split, see history of Kampo. A broader three-way comparison with Korean medicine is at Kampo, Hanbang and Chinese medicine compared.
Side-by-side summary
| Question | Kampo in Japan | Chinese herbal medicine |
|---|---|---|
| Who usually prescribes? | Physicians who learned modern Western medicine, who prescribe Kampo extract products based on a Western medical diagnosis [1] | Not covered in the sources we read for this page; see the TCM guides linked below |
| Formula choice | Based on fixed classical formulations [3] | Enables flexible syndrome differentiation [3] |
| Status in the health system | 148 formulae officially approved as prescription drugs and covered by national health insurance in Japan [2] | Varies by country; see the TCM qualifications guide |
| Quality control | Described as a highly standardized, evidence-based model [3] | Industry produces and standardizes herbal medicines [3] |
| Research focus | In-depth analysis of selected classic formulations [3] | Broad investigation of many formulations [3] |
The authors of that source say traditional physicians had been abolished in Japan, which is why Western-trained physicians are the mainstream prescribers, and that this situation differs from other East Asian countries. [1]
What "fixed formulas" and "flexible formulas" mean
In Kampo as practiced in Japan today, a physician generally chooses among established formulas, and the formulas are mainly supplied as extract products. [1][3] A 2026 review contrasts this with Chinese medicine, which it says enables flexible syndrome differentiation. [3] The pattern in each case is a traditional framework, not a biomedical diagnosis. See Kampo concepts: sho and traditional pattern differentiation in TCM.One formula can carry a different name in each system. For example, the Kampo formula bofutsushosan is called Fang-Feng-Tong-Sheng-San in China. [4] Because the researchers describe stark differences between Japanese and Chinese formulae, a shared name should not be assumed to mean an identical product. [2] Ask what exactly is in it.
Practical points if you are choosing
- A product bought abroad under a Kampo or Chinese name may not match the studied formula. Ask what is in it and who made it.
- Training and licensing differ by country. We did not find sourced rules on Kampo practice outside Japan, so see TCM qualifications and licensing for the Chinese-medicine side and ask your own regulator or doctor.
- Tell your doctor and pharmacist about any herbal product. See talking to your doctor about traditional healing.
Frequently asked questions
Is Kampo just Chinese medicine?
No. It has roots in ancient Chinese medicine but developed separately in Japan. [1] One group describes stark differences between Japanese and Chinese herbal formulae. [2]
Who prescribes Kampo in Japan?
Mostly physicians trained in modern Western medicine, who prescribe Kampo extract products. [1]
Are Kampo formulas covered by insurance in Japan?
A 2015 paper reports 148 Kampo formulae officially approved as prescription drugs and covered by national health insurance. [2]
Which is better, Kampo or Chinese herbal medicine?
The sources we read do not compare them head to head, and a ranking would not be fair. Each formula needs to be judged on its own evidence and safety record.
Can I use a Chinese herbal practitioner for Kampo?
Not necessarily. The training, formulas and product standards differ by country and tradition. Ask about training and about exactly what product you would receive.
More details: evidence, limits and cautions
The details behind this page: cautions, limits of the evidence and where sources disagree. Open any note to read it.
What this means for safety and evidence
For evidence, neither system proves its approach by tradition. A formula's research record is specific to that formula and use. See Kampo evidence overview.
References
- Clinical studies of traditional Japanese herbal medicines (Kampo): need for evidence by the modern scientific methodology. Integr Med Res, 2021. Read 2026-10-22.
- Kono T, et al. Complementary and synergistic therapeutic effects of compounds found in Kampo medicine: analysis of daikenchuto. Front Pharmacol, 2015. Read 2026-10-22.
- Li W. Modern research on formulated granules of traditional Chinese medicines and Japanese Kampo medicines: a narrative review (abstract). Drug Discov Ther, 2026. Read 2026-10-22.
- Japanese traditional Kampo medicine bofutsushosan improves body mass index in participants with obesity: a systematic review and meta-analysis. PLoS One, 2022. Read 2026-10-22.
- Adverse effects of Kampo medicines. Intern Med, 2022. Read 2026-10-22.