Ontake Hyakuso

Second-class OTC Drugs

Product Lineup:
18g(30doses)

This product consists of 100% Phellodendron Bark Extract, the original form of Hyakusogan, and is formulated without any additives.

Additive-Free 100% Herbal Medicine Extract Formulation

Ontake Hyakuso is made solely from the extract of the inner bark of the Amur cork-tree, a broad-leaved tree from the Rutaceae family (herbal medicine name: Phellodendron Bark). This formulation's active ingredients are highly effective against diarrhea, food poisoning, and water poisoning.

Extract formulation

Shaped like a chocolate bar, the product is officially called "dry extracts." It is formulated by evaporating the water from the boiled extract and allowing it to harden. When taking the product, you break it into pieces along the "split line" before consumption.

Antidiarrheal (medicine for diarrhea)

This medication primarily targets the intestines, improving diarrhea (*) and loose or soft stools. (Note that some types of diarrhea, such as viral diarrhea, should not be stopped.)

※Diarrhea essentially serves as a defense reaction in the human body, functioning as a mechanism to expel foreign substances quickly.

Origin of Hyakusogan, Continuing Since the Edo Period

Historically, phellodendron bark extract was boiled down in a large pot and sold in bamboo skin. Today,
Hyakusogan is produced in a quality-controlled factory, adhering to pharmaceutical production standards.

【 Efficacy and Effects 】

Addresses diarrhea, diarrhea resulting from indigestion, food poisoning, vomiting and purging, water poisoning, loose bowels, and soft stools.

【 Ingredients and Amounts 】

for 1.8g

Ingredients Amounts Original Herbal Reduced Quantity
Dried extract of Phellodendron Bark 3 pieces(1.8g) (equivalent to 9g of Phellodendron amurense.)

【 Dosage and Administration 】

Take 3 times a day after meals with water or plain hot water.

Age Specific Single Dose
Adult (15 years and older) 0.6g
11 to under 15 years old 0.4g
8 to under 11 years old 0.3g
5 to under 8 years old 0.2g
Under 5 years of age Do not take

<Precautions for Dosage and Administration>

  • (1)

    Adhere strictly to the recommended dosage and administration guidelines.

  • (2)

    Administer to children only under the guidance and supervision of a parent or guardian.

  • (3)

    When administering the medicine to children, especially those 5 years or older, take precautions to ensure it doesn't get lodged in the throat.

Precautions for Us 】

- Consultation -

  • 1.

    The following individuals should consult a physician, pharmacist, or registered sales clerk before taking this product:

  • (1)Those under medical treatment.
    (2)Individuals with diarrhea accompanied by fever, bloody stools, or persistent mucoid stools.
    (3)Those with acute severe diarrhea or diarrhea accompanied by symptoms such as abdominal pain, distention, or nausea. (Forcefully stopping diarrhea with this product may worsen the condition.)
    (4)older adults.

  • 2.

    If symptoms do not improve after taking this product for 5 to 6 days, cease usage and consult a doctor, pharmacist, or registered sales clerk with this container

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