Sumitomo Pharma Company Limited
Company typePublic
TYO: 4506
  • Dainippon Pharmaceuticals
  • Sumitomo Pharmaceuticals
FoundedOctober 1, 2005; 18 years ago (2005-10-01) (merger of Dainippon Pharmaceuticals & Sumitomo Pharmaceuticals)
HeadquartersDoshomachi, Chuo-ku, Osaka, Japan
Key people
Hiroshi Nomura, (president and CEO)
Revenue$4.18 billion (¥555.54 billion) (FY 2022)[* 1]
-$580 million (-¥77.0 billion) (FY 2022)[* 1]
-$728 million (-¥96.7 billion) (FY 2022)[* 1]
Total assets$8.55 billion (¥1,134.7 billion) (FY 2022)[* 1]
Total equity$3.06 billion (¥406.8 billion) (FY 2022)[* 1]
Number of employees
6,250 (consolidated)
3,026 (non-consolidated) (as of March 31, 2023)
Footnotes / references
  1. ^ a b c d e "Financial Results for Fiscal 2022" (PDF). Sumitomo Pharmaceutical Company Limited. May 6, 2024. Retrieved May 6, 2024.

Sumitomo Pharma Company Limited (住友ファーマ株式会社, Sumitomo Fāma Kabushiki-Gaisha) is a Japanese multinational pharmaceutical company. The company is focused on oncology, psychiatry, neurology, women's health issues, urological diseases among other areas. Its headquarters are located in Chuo-ku, Osaka.[1]


The original Dainippon Pharmaceuticals (Dainippon Seiyaku) was established in 1885 by Nagayo Sensai, a graduate of Tekijuku – the first private medical school in Japan established by Ogata Kōan. It was set up as a wholly privately owned company funded by individuals from Tokyo and Osaka, with the government lending it land and buildings. Technical expertise for the enterprise was provided by Shibata Shokei and Nagai Nagayoshi.

The company started its operation in the same year with equipment imported from Germany. The main products were tincture and other similar drugs listed in the Japanese Pharmacopoeia. Among them was ephedrine, an anti-asthma drug invented by Nagai. In 1893, however, Nagai left the company and the business started to record operating losses. In 1898 it was acquired by Osaka Seiyaku.

The company produced methamphetamine under the brand name Philopon during WWII for the Imperial Japanese military.[2]

Years later, Sumitomo Pharmaceuticals was incorporated separately in 1984 as a subsidiary of Sumitomo Chemical.[3][needs update] Dainippon and Sumitomo merged on October 1, 2005, to create Dainippon Sumitomo Pharma.[4] As a result, Sumitomo Chemical has maintained a 51%+ ownership in the company since.[5]

On April 1, 2022, the company was renamed from Sumitomo Dainippon Pharma to Sumitomo Pharma.

Acquisitions and Consolidations

Operating without a sales foothold in North America, then-Sumitomo Dainippon Pharma acquired NASDAQ-traded Sepracor for $2.6B in 2010, renaming its new stand-alone subsidiary Sunovion.[6] Under Sunovion management, Sumitomo Dainippon Pharma was able to successfully market its $2B blockbuster drug Latuda in North America, an atypical antipsychotic approved for the treatment of schizophrenia and depressive episodes associated with Bipolar I disorder. In addition to Latuda, Sunovion achieved other notable commercial achievements with marketed drugs such as Lunesta, Aptiom, and Brovana.

In September 2016, the Sunovion subsidiary announced it would acquire Cynapsus Therapeutics for approximately $624 million, to expand Sunovion's central nervous system drug portfolio. With the deal, Sunovion would acquire Cynapsus' then-Phase III Parkinson's disease candidate drug Kynmobi,[7] a sublingual formulation of apomorphine.[8]

Sumitomo Dainippon Pharma announced a $3B upfront acquisition in September 2019 of five Roivant subsidiaries, including Urovant and Enzyvant.[9]

In October 2022, Sumitomo Pharma announced the acquisition of all outstanding shares in Myovant, a former Roivant subsidiary it was previously a majority owner of, valuing the company at $2.9B.[10]

Following the Myovant acquisition in April 2023, Sumitomo Pharma consolidated its US subsidiaries to form Sumitomo Pharma America (SMPA), a biopharmaceutical company focused on delivering therapeutic and scientific breakthroughs in areas of critical patient needs spanning psychiatry and neurology, oncology, urology, women's health, rare disease, and cell and gene therapies.[11]

List of mergers and acquisitions

The following is an illustration of the company's major mergers and acquisitions and historical predecessors:


  1. ^ "Company Summary". Google Finance. Retrieved September 13, 2014.
  2. ^ Odagiri, Hiroyuki (1996). Technology and Industrial Development in Japan. Clarendon Press, Oxford. p. 239. ISBN 0-19-828802-6.
  3. ^ 連結子会社の合併に関するお知らせ [Notice regarding merger of consolidated subsidiaries] (PDF) (in Japanese). Sumitomo Chemical. November 25, 2004. Retrieved November 3, 2011.
  4. ^ "Corporate History". Dainippon Sumitomo Pharma. Retrieved November 3, 2011.
  5. ^ "Fact Book 2014" (PDF). Dainippon Sumitomo Pharma. Retrieved November 3, 2011.
  6. ^ Company press release
  7. ^ "Sunovion to Acquire Cynapsus for $624M - GEN News Highlights - GEN". September 2016.
  8. ^ "Efficacy and Safety of APL-130277 in People with Parkinson's Disease who are Apomorphine Naïve | Parkinson's Disease".
  9. ^ "Sumitomo Dainippon Pharma and Roivant Sciences Enter into a Memorandum of Understanding to Create Broad Strategic Alliance to Deliver Promising New Medicines to Patients". 2019-09-05. Archived from the original on 2020-05-03.
  10. ^ "Sumitovant Biopharma, Sumitomo Pharma, and Myovant Sciences Enter into Definitive Agreement". 2022-10-23. Archived from the original on 2022-10-24.
  11. ^ a b "Sumitomo Pharma Subsidiary Companies in the U.S., Including Sumitovant and its Wholly Owned Subsidiaries, to Combine and Form Sumitomo Pharma America".