Traditional Formulas: Historical Records, Modern Preparations and Why Similar Names Differ

The short answer

A formula name such as one from Chinese, Japanese Kampo or Ayurvedic tradition does not point to one fixed thing. It can mean a recipe recorded in a historical text, a modern standardized preparation made under rules, or a commercial product sold under a similar name. These can differ in ingredients, amounts, preparation and quality. A formula record in the library is a name with identifiers and linked records, and it does not tell you what any particular product contains.

The library holds about 6,700 formula records, all imported from public databases and ontologies. None has been reviewed by a clinician, and most have no written summary. This page explains the three meanings so that you can read those records with care.

Three things that share one name

Tradition by tradition

Chinese medicine. NCCIH says traditional Chinese medicine has evolved over thousands of years. [1] A 2026 narrative review notes that in TCM, formulated granules came from the need to modernize herbal medicines through extraction and granulation, and that TCM allows flexible syndrome differentiation, meaning formulas can be adjusted to the person in front of the practitioner. [2] So a named formula in practice can legitimately vary. See Chinese herbal medicine.

Kampo. The same review describes Japanese Kampo as based on fixed classical formulations, covered by national health insurance, with a highly standardized model. [2] Another review explains that in Japan Kampo drugs fall under the same approval system as Western medicines. [3] This suggests that a Kampo formula name can refer to a more tightly defined product than a similar-sounding name elsewhere, though you would need to check the specific product. See Kampo medicine.

Ayurveda. NCCIH notes that Ayurvedic treatment combines products (mainly from plants, but possibly also animal, metal and mineral), diet, exercise and lifestyle. [4] Preparations are therefore not only herbs, and some include metals, minerals or gems. [4] See Ayurvedic herbal preparations.

Why similar names differ

• One herb name, several plants. In Chinese medicine, a single herb name can refer to several species. One analysis showed that of three plants sharing the herb name fangji, only one contained aristolochic acid, and it recommended using a "pharmaceutical name" that defines species, plant part and processing. [5]
• Mislabeling. Ambiguity in names and look-alike materials are major causes of adulteration. [6]
• Same label, different chemistry. In an analysis of 16 commercial herbal tea samples sold under the same species labels, the researchers found significant qualitative and quantitative differences between products. [7]
• Contamination and substitution. NCCIH reports that some Chinese herbal products have been contaminated with toxic compounds, heavy metals, pesticides and microorganisms, and that manufacturing errors that swapped one herb for another have caused serious complications. [1]
• Different eras. Plant identities in old texts can be uncertain. [8]

Read together, these points mean that two records, or two products, with similar names should not be treated as interchangeable.

Historical amounts are not doses

Old recipes often list ingredient amounts in historical units. Those amounts describe the recipe as recorded. They are not dosing guidance for anyone today, and the library offers no dosing advice. Talk with a qualified clinician about any preparation you are considering, especially if you take medicines or are pregnant. For safety topics see traditional medicine safety and clinical care.

What research on formulas looks like

Formula studies are often hard to compare. NCCIH says studies of Chinese herbal products for a range of conditions have had mixed results, and that because many studies were of poor quality no firm conclusions can be made about their effectiveness. [1] For Ayurveda, it says that a few studies suggest benefits, but most of the trials are small or not well designed. [4] When a library record links a formula to a registered trial, remember that a registration is a plan and not a result, as explained in registered trials and completed studies. Also check whether the trial tested the exact preparation you are reading about.

Common misunderstandings

• "The same name means the same product." Not necessarily, as shown above.
• "A traditional formula is safe because it is old." Age does not show safety. [1]
• "A formula record with many studies is proven." Connections are not ratings.

To browse records, go to Traditional Formulas, and for how historical texts are handled, see traditional and historical sources.