Medical care · code 6012

Stomach medicine

胃腸薬

Average retail price

¥1,000per box+13.9% year on year
2026-08 · unweighted average of 81 surveyed cities
Surveyed specification: 第2類医薬品,複合胃腸薬,錠剤,箱入り(50錠入り),「第一三共胃腸薬プラス錠剤」
Cheapest surveyed city
¥872 Himeji
Priciest surveyed city
¥1,086 Niigata

Retail price survey conducted by the Statistics Bureau of Japan. This is a survey average, not a shop price — actual prices vary by store. 総務省統計局 小売物価統計調査 · Surveyed items and specifications

Key facts

Stomach medicine costs ¥1,000 per box in Japan as of August 2026 — the unweighted average of 81 surveyed cities, up 13.9% from a year earlier. Measured as an index, the official CPI for stomach medicine reads 117.7 (2020 = 100) in August 2026, up 14.3% year on year and up 17.1% over five years.

Stomach medicine sits in the medical care group of Japan's CPI basket, with 656 monthly observations from January 1972 to August 2026. The series peaked at 124.8 in April 1989 and bottomed at 60.8 in February 1972; the latest reading is -5.7% against that peak. Against ten years ago it is +12.1%.

Latest CPI
117.7
2026-08 (2020=100)
YoY %
+14.3%
5y change %
+17.1%
Change since 1972-01
+93.0%

Annual average index by year

Annual average consumer price index for Stomach medicine in Japan (2020 = 100)
YearIndexYoY %Months
2015104.5+2.2%12
2016104.4-0.1%12
2017104.2-0.2%12
201899.9-4.1%12
201998.7-1.2%12
2020100.0+1.3%12
2021100.5+0.5%12
2022102.6+2.1%12
2023102.8+0.2%12
2024103.3+0.5%12
2025103.5+0.2%12
2026109.6+5.9%8

Average of the monthly index values in each year (2020 = 100). Blank months are excluded.

Average retail price by month

2026-08¥1,000
2026-07¥997
2026-06¥972
2026-05¥895
2026-04¥892
2026-03¥890
2026-02¥891
2026-01¥892
2025-12¥888
2025-11¥887
2025-10¥881
2025-09¥879
2025-08¥878

Frequently asked questions

How much does stomach medicine cost in Japan?
¥1,000 per box, as of August 2026 — the unweighted average of 81 surveyed cities in the government's retail price survey.
Which Japanese city has the cheapest stomach medicine?
Among the surveyed cities in August 2026, Himeji was cheapest at ¥872 and Niigata the most expensive at ¥1,086.
How much have stomach medicine prices changed in Japan over the past year?
As of August 2026, +14.3% year on year, measured by Japan's official consumer price index (2020 = 100).
How much have stomach medicine prices changed in Japan over the past five years?
+17.1% compared with the same month five years earlier. The index now reads 117.7.
When were stomach medicine prices in Japan at their highest?
The series peaked at 124.8 in April 1989. The latest reading is -5.7% against that peak.
What is the difference between the index and the yen price?
This page carries two kinds of number. The index (2020 = 100) measures percentage change over time and is not a yen amount; the yen figure is an actual average retail price from the government's retail price survey. Source: 総務省統計局 消費者物価指数 (e-Stat table 0003427113, nationwide, monthly).

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