Ever since I was a kid, whenever I had an upset stomach, my mom would give me Seirogan, even though it smells pretty bad. So even now, we always keep a bottle at home just in case.

Seirogan
A Gastrointestinal Medication Used for Over 100 Years in Japan
Seirogan is a gastrointestinal medication that has been a staple in Japanese households for over 100 years.
Its main active ingredient, the herbal medicine (a natural plant with medicinal properties) and Japanese pharmacopoeia “JP wood creosote” helps to adjust the water balance in the intestines without disrupting intestinal movement.
Seirogan is particularly effective against food poisoning, water poisoning, dyspepsia, loose stool caused by drinks, diarrhea, vomiting, and loose stool caused by stress or colds.
Highlights
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Can be used by those 5 years and older.
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Take 3 times a day.
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Ingredients do not cause drowsiness.
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Iconic trumpet marking on packaging.
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Has a distinctive fragrance, but there are odorless series available as well.
Photos
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Iconic trumpet marking on packaging
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Reviews
If the original text is in another language, the AI will automatically translate and display it.
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This medicine has been sitting around for ages. It seems like it never really goes bad...
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Everyone calls them 'stinky pills'—the taste really isn't great.
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Every time I travel to Japan, my grandma always reminds me to bring back Seirogan. 😓
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This is an essential remedy for me. No side effects, and I always feel safe taking it.
Details
- Product name in Japanese
- 正露丸
- Contents/Price
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50pc 800 yen / 100pc 1,000 yen / 200pc 1,800 yen / 400pc 3,200 yen
※Prices may vary by shop. - Manufacturer
- Taiko Pharmaceutical Co., Ltd.
- Official Website
- Official Website (English)