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Daikenchuto Kampo Granules

Daikenchuto is a Japanese Kampo herbal formula. Tsumura makes the best known version.

Updated Nov 1, 2026. Edited by: Ilyass Ben Hakim.

Where to buy

Japan sells it as a Class 2 OTC drug and by prescription. Outside Japan, most buyers order from Japanese export shops. You pay any import duty.

Professional insight

Pharmacists confirm the maker and formula number first. Then they check local import rules for medicines.

Tsumura codes it as formula number 100.
OTC boxes and clinic packs can differ in strength.
Ask for an English insert or translation.
Check your country's personal import limit for medicines.

Check the label

Maker name, such as Tsumura.
Formula name Daikenchuto, sometimes spelled Dai-kenchu-to.
Packet count, such as 48 sachets.
Drug class marking on the box.
Crude drugs listed: Japanese pepper, ginger, ginseng.
Expiry date on the box and each strip.
Sealed box with no torn packets.

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Daikenchuto formula facts

Type: Kampo herbal extract granules
Crude drugs: Zanthoxylum fruit, processed ginger, ginseng
Registered in Japan: 1986

US trials have tested it as an investigational drug, coded TU-100. It is not an approved US medicine.

Before you buy

Talk to your doctor first, especially if you take other medicines.
Some countries limit or block mailed medicine imports.
Shipping from Japan can face postal delays.
Returns are usually limited to damaged items.

Storage

Keep packets in the box, away from damp.
Store at room temperature out of sunlight.
Do not use clumped or wet granules.
Store the box where children cannot reach it.

Common questions

Is daikenchuto sold in US pharmacies?: No regular US pharmacy listing was found. Buyers usually import it from Japan.
What is TJ-100?: It is Tsumura's product code for its daikenchuto extract.
How much should I take?: Follow the box directions and your doctor or pharmacist. This page gives no dosing.