Seirogan Toi-A

Seirogan Toi-A

セイロガン糖衣A

Digestive Health
Class 2 — Available at drug stores
Drug Type

Herbal antidiarrheal tablets (wood creosote with crude drugs)

Form

Sugar-coated tablets

Indication

Soft stools, diarrhea, food poisoning, water poisoning, vomiting and diarrhea, loose bowels, and diarrhea due to indigestion

Active Ingredients (per 12 tablets, the adult maximum daily dose)

Wood creosote 270 mg
Geranium herb powder 300 mg
Phellodendron bark dry extract 300 mg

Inactive Ingredients

Magnesium aluminometasilicate, aluminum silicate, methylcellulose, hydroxypropylcellulose, carmellose calcium (CMC-Ca), magnesium stearate. Sugar coating: sucrose, gum arabic, gelatin, talc, calcium carbonate, titanium oxide, carmellose sodium (CMC-Na), macrogol, carnauba wax, white beeswax

Instructions for Use

  • ✓Take within 30 minutes after a meal if possible. Always take with water or lukewarm water.
Age Dose per use Times per day
Adults (15 years and older) 4 tablets 3 times daily
11 years to under 15 years 3 tablets 3 times daily
5 years to under 11 years 2 tablets 3 times daily
Under 5 years Do not use —
  • ✓Follow the recommended dosage strictly.
  • ✓Children aged 5 and older should take under adult supervision, so that they take the right amount and the tablets do not get stuck in the throat.
  • ✕Do not use this product if you have ever had an allergic reaction (rash, redness, itching, swelling, etc.) to this product or any of its ingredients.
  • ✕Do not use this product if you are receiving dialysis treatment.
  • ✕Do not take this product continuously for a long time.
  • ⚠Consult a doctor, pharmacist, or registered salesperson before use if you:
  • (1) Are under medical treatment.
  • (2) Have diarrhea with a fever, bloody stools, or mucus in your stools that continues.
  • (3) Are pregnant, possibly pregnant, or breastfeeding.
  • (4) Are elderly.
  • (5) Have ever had an allergic reaction to a medicine, cosmetics, or similar products.
  • (6) Have liver or kidney disease.
  • ✓Stop use immediately and consult a doctor, pharmacist, or registered salesperson — bringing this package insert with you — if any of the following appear after use, as they may be side effects:
  • Skin: Rash, redness, itching, or swelling
  • Gastrointestinal: Nausea/vomiting, constipation, loss of appetite, or stomach discomfort
  • Nervous system: Dizziness or headache
  • ✓If symptoms do not improve after several days (about 5–6 days as a guide), stop and consult a doctor, pharmacist, or registered salesperson, bringing this package insert with you.
  • ✓Store in a cool place away from direct sunlight, with the lid tightly closed. Keep out of reach of children. Do not transfer to another container (this can cause mistaken use or affect quality). Do not use after the expiry date.

Additional Information

The package insert describes Toi-A as an odorless, easy-to-swallow white tablet that combines wood creosote with crude drugs such as geranium herb powder and phellodendron bark dry extract.
The wood creosote in this product is a crude drug. It is a completely different substance from industrial creosote (coal-tar creosote), with different raw materials, components, and uses. The package insert states that carcinogenicity tests found no carcinogenicity in this wood creosote.

Sources & Documents

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For informational purposes only. Always consult a doctor or pharmacist before taking any medication.