正せい露ろ丸がんせいろがんFreq.FrequencyTop 50,000じ字FuriganaMeanings1nounSeirogan; herbal diarrhea medicineA well-known Japanese over-the-counter herbal pill made from beechwood extract, traditionally used for diarrhea, stomachache, and digestive issues. The name is a proper noun but often used generically.お腹なかが痛いたいときは正せい露ろ丸がんを飲のみます。