胃薬

1. Origins, structure, and basic meaning

• Structure: 胃薬, read いぐすり, is medicine taken to relieve stomach discomfort such as heaviness or indigestion.
• Basic usage: Someone may take it after overeating or pack their usual remedy in a travel bag.

2. Common pitfalls and similar expressions

• Medicine taken for stomach trouble
  • This is stomach medicine taken after overeating or packed for travel as a usual remedy. The word does not specify an ingredient or guarantee treatment for every abdominal pain.