| 1871 |
Tori Tokubei founded the Western medicine import merchant "Utenoya" in Sakai-cho, Yokohama City |
| 1909 |
Established a drug testing laboratory and started manufacturing and selling private brand products |
| 1911 |
Open a branch office in Nihonbashi Honcho, Chuo-ku, Tokyo |
| 1911 |
Established a branch office (current head office) in Nihonbashi Honcho, Chuo-ku, Tokyo |
| 1921-11 |
Established Tori Trading Company, Ltd. |
| 1949-05 |
Merged with Tori Pharmaceutical Co., Ltd. and changed the company name to Tori Pharmaceuticals, Inc. |
| 1963-04 |
Launched allergy diagnostic and therapeutic drug "Allergen Extract" |
| 1963-06 |
Registered the company's stock as an over-the-counter stock with the Tokyo Stock Exchange |
| 1977-10 |
Completed construction of Sakura Factory in Sakura City, Chiba Prefecture |
| 1990-04 |
Completed the current head office building |
| 1993-10 |
Listed on the Second Section of the Tokyo Stock Exchange |
| 1993-11 |
Launched external corticosteroid "Antevate Ointment and Cream" |
| 1995-09 |
Reclassified to the First Section of the Tokyo Stock Exchange |
| 1998-12 |
Japan Tobacco Inc. (JT) acquired a majority of the company's shares |
| 1999-10 |
Established a collaborative system where sales functions are integrated into the company and research and development functions are concentrated in JT |
| 1999-10 |
Established a collaborative system where sales functions are integrated into the company and research and development functions are concentrated in JT |
| 2009-03 |
Launched oral antipruritic "Remitch Capsules" |
| 2009-03 |
Launched oral antipruritic "Remitch Capsules" (manufactured and sold by Toray Industries, Inc.) |
| 2014-05 |
Launched hyperphosphatemia treatment drug "Riona Tablets" |
| 2014-05 |
Launched hyperphosphatemia treatment drug "Riona Tablets" (manufactured and sold by JT) |
| 2014-10 |
Launched allergen immunotherapy drug "Shidatoren Cedar Pollen Sublingual Solution" for cedar pollen allergy |
| 2014-10 |
Launched allergen immunotherapy drug "Shidatoren Cedar Pollen Sublingual Solution" |
| 2015-12 |
Launched allergen immunotherapy drug "Mitykure Dust Mite Sublingual Tablets" for dust mite allergy |
| 2018-06 |
Launched allergen immunotherapy drug "Shidacure Cedar Pollen Sublingual Tablets" for cedar pollen allergy |
| 2020-06 |
Launched external JAK inhibitor "Korectum Cream" |
| 2020-06 |
Launched external JAK inhibitor "Korectum Cream" (manufactured and sold by JT) |
| 2020-07 |
Transferred Sakura Factory to Iwaki Pharmaceutical Co., Ltd. |
| 2020-12 |
Launched renal anemia treatment drug "Enaroi Tablets" |
| 2020-12 |
Launched renal anemia treatment drug "Enaroi Tablets" (manufactured and sold by JT) |
| 2021-04 |
Launched hereditary angioedema plasma kallikrein inhibitor "Orideo Capsules" |
| 2021-04 |
Launched hereditary angioedema plasma kallikrein inhibitor "Orideo Capsules" (manufactured and sold by Ophan Pacific Corporation) |
| 2022-04 |
Transitioned from the First Section to the Prime Market of the Tokyo Stock Exchange due to market classification review |
| 2022-04 |
Transitioned from the First Section to the Prime Market of the Tokyo Stock Exchange due to market classification review |
| 2024-10 |
Launched atopic dermatitis and psoriasis treatment drug "Vitamark Cream" |
| 2024-10 |
Launched atopic dermatitis and psoriasis treatment drug "Vitamark Cream" (manufactured and sold by JT) |
| 2025-09 |
Becomes a wholly owned subsidiary of Shionogi Pharmaceutical Co., Ltd. |
| 2026-02 |
Launched viral wart treatment drug "Wycans External Solution" |
| 2026-02 |
Launched viral wart treatment drug "Wycans® External Solution 0.71%" |
