page_title: Seirogan
hierarchical_section_title: Seirogan
caption_attribution_description: English: A picture of several pills of Seirogan, a kind of antidiarrheic drugs. 日本語: 正露丸の丸剤の写真。 中文（简体）‎: 正露丸，一种止泻药的丸剂的照片。
context_page_description: Seirogan is a pharmaceutical drug marketed in Japan, sold as a treatment of the digestive tract, whose main active ingredient is "wood creosote"
  The name is nominally a registered trademark of Taiko Pharmaceutical based in Suita, Osaka which is still the major market-share holder, but the enforceability of the tradename has been voided by the Supreme Court of Japan, which ruled seirogan to be a common generic name. The ruling only recognizes proprietary use of the bugle logo by Taiko, but not protection of its characteristic packaging. As a result, dozens of extremely similar packaged drugs are being manufactured and sold in the market.
context_section_description: Seirogan (正露丸 formerly 征露丸) is a pharmaceutical drug marketed in Japan, sold as a treatment of the digestive tract (especially as an antidiarrhoeal), whose main active ingredient is "wood creosote" (also wood-tar creosote, or beechwood creosote.)
  The name is nominally a registered trademark of Taiko Pharmaceutical (大幸薬品, Taikō Yakuhin) based in Suita, Osaka which is still the major market-share holder, but the enforceability of the tradename has been voided by the Supreme Court of Japan, which ruled seirogan to be a common generic name. The ruling only recognizes proprietary use of the bugle logo by Taiko, but not protection of its characteristic packaging. As a result, dozens of extremely similar packaged drugs are being manufactured and sold in the market.
caption: Seirogan
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