Who owns Gaster 10?
Gaster 10 is owned by Daiichi Sankyo Healthcare (Japan).[1]
This ownership is reported in official statements but has not yet been matched to a regulatory filing.
Evidence: Daiichi Sankyo Healthcare: History (沿革), Daiichi Sankyo Healthcare Co., Ltd. Last checked .
Key facts
- Current owner
- Daiichi Sankyo Healthcare Co., Ltd. reported
- Owner HQ
- 🇯🇵 Japan, Tokyo
- Origin
- 🇯🇵 Japan
- Founded
- 1997
- Category
- Consumer health › Over-the-counter medicine › Digestive health
- Last verified
- · 1 sources
About Gaster 10
Stomach medicine listed in the Daiichi Sankyo Healthcare product history as launched in 1997, one of the long-selling products the company highlights. It is part of the digestive range that also includes Daiichi Sankyo Stomach Medicine and is sold in Japan as an over-the-counter stomach medicine.
Ownership timeline of Gaster 10
- Current owner Daiichi Sankyo Healthcare [1] reported
Where Gaster 10 sits in Daiichi Sankyo Healthcare
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full Daiichi Sankyo Healthcare ownership tree →
See the full Daiichi Sankyo Healthcare brand portfolio (8) →
Other brands owned by Daiichi Sankyo Healthcare
Daiichi Sankyo Healthcare controls 8 brands on Brandtree, 5 of them in consumer health.
Also in consumer health
- Daiichi Sankyo Stomach Medicine (1957)
- Loxonin (1986)
- Lulu (1951)
- Makiron (1971)
Other brands in digestive health, and who owns them
The 23 brands in digestive health on Brandtree belong to 16 owners. The largest is Bayer, with 2; Daiichi Sankyo Healthcare has 2.
| Brand | Owner | Owner based in |
|---|---|---|
| Alka-Seltzer | Bayer | 🇩🇪 Germany |
| Kaopectate | Genomma Lab | 🇲🇽 Mexico |
| Epocler | Hypera | 🇧🇷 Brazil |
| Entrostop | Kalbe Farma | 🇮🇩 Indonesia |
| Metamucil | Procter & Gamble | 🇺🇸 United States |
| Buscolysin | Sopharma | 🇧🇬 Bulgaria |
| Oracal | Birzeit Pharmaceutical | 🇵🇸 Palestine |
| First Response | Church & Dwight | 🇺🇸 United States |
About the owner: Daiichi Sankyo Healthcare
Daiichi Sankyo Healthcare is a privately held company headquartered in Tokyo, Japan, founded in 2005. Brandtree records 8 brands under its control.
Japanese self-care and over-the-counter health company, incorporated on 16 December 2005 and trading from 2006, when the healthcare businesses of Sankyo and Daiichi Seiyaku were combined. Zepharma joined in 2007. Its head office is in Nihonbashi, Tokyo, and it reported sales of 90.7 billion yen for the year to March 2026. Its site is in Japanese only; the brands below come from its launch history and brand list.
Daiichi Sankyo Healthcare: full profile, brands and acquisition history →
🇯🇵 Gaster 10 and other Japanese brands
Brandtree records a controlling owner for 437 brands that began in Japan. 21 of them (5%) are now controlled by a company headquartered in another country; Gaster 10 is not one of them.
- Air Salonpas — Hisamitsu Pharmaceutical 🇯🇵
- Ammeltz — Kobayashi Pharmaceutical 🇯🇵
- Biofermin — Taisho Pharmaceutical 🇯🇵
- Jelly Monster — Okamoto Industries 🇯🇵
- "K" Line — K Line 🇯🇵
- ABEMA — CyberAgent 🇯🇵
Frequently asked questions
Who is the parent company of Gaster 10?
The parent company of Gaster 10 is Daiichi Sankyo Healthcare, a privately held company headquartered in Japan.
Is Gaster 10 Japanese?
Yes. Gaster 10 originated in Japan in 1997 and its owner, Daiichi Sankyo Healthcare, is also headquartered in Japan.
Is Gaster 10 still owned by Daiichi Sankyo Healthcare?
Yes. As of 4 October 2026, Gaster 10 is still owned by Daiichi Sankyo Healthcare. The ownership record was last checked against primary sources on that date.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] Daiichi Sankyo Healthcare: History (沿革) — Daiichi Sankyo Healthcare Co., Ltd., Official document; retrieved 4 October 2026.
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