MEDICINE FINDER
Know what is in the box.
Japanese over-the-counter medicines, explained from the label, with the brands you know from home.
Look up Japanese over-the-counter medicines by name, ingredient or the brand you use at home.
This shows what each box’s label says: active ingredients, the label’s own uses and the sales class. It does not tell you what to take. Show the box to the pharmacist and ask before you buy, especially if you take other medicines, are pregnant or are buying for a child. Care Compass Japan provides navigational guidance, not medical diagnosis or treatment advice. If you are experiencing symptoms, please consult a qualified healthcare professional or visit an accredited hospital/clinic.
Where to buy near you
Shows the closest pharmacies and drugstores and the nearest convenience stores. Most medicines are sold at drugstores and pharmacies; convenience stores mainly carry quasi-drugs and only some sell Class 2 or 3 medicines. Stock varies, so check in the store. Opening hours come from Google Maps. Your location is sent only to Google to look up stores.
1 Japanese products
Seirogan
正露丸
Made by Taiko Pharmaceutical
Active ingredients
- Wood creosote, 400 mg per 9 pills 木クレオソート
- Gambir powder, 200 mg per 9 pills アセンヤク末
- Phellodendron bark powder, 300 mg per 9 pills オウバク末
- Glycyrrhiza powder, 150 mg per 9 pills カンゾウ末
- Citrus unshiu peel powder, 300 mg per 9 pills チンピ末
Label says it is for: Diarrhea, loose stools, food poisoning, water poisoning, diarrhea from indigestion; toothache (packed into the cavity)
- The creosote in Seirogan is plant-derived JP wood creosote: a completely different substance from industrial coal-tar creosote
Where to buy: Drugstores and pharmacies, and other shops, such as some convenience stores, while a pharmacist or registered seller (登録販売者) is on duty.
Similar products (6)
- SSizumi Class 2
- Oral Boraginol EX Class 2
- Ohta's Isan Class 2
- Koecure Class 2
- Ryukakusan Direct Stick Class 3
- Ryukakusan Class 3
Checked against the maker’s official page on 2026-10-24.