History of Otsuka

Otsuka Group started in 1921. Busaburo Otsuka established a chemical compound factory in Naruto, Tokushima Prefecture, now Otsuka Pharmaceutical Factory Inc. In 1946, this small-scale manufacturer of chemical raw materials began producing and selling intravenous  solution. In 1950, the organic chemical division split from Otsuka Pharmaceutical Factory to from Otsuka Chemical and Medical Products, Inc., now called Otsuka Chemical. This was followed by the establishment of Taiho Pharmaceutical in 1963 and Otsuka Pharmaceutical in 1964. These new entries were steps in the evolution of a manufacturer specializing in R & D.

In 1973, the international expansion of the Otsuka Group started with the establishment of Thai Otsuka Pharmaceutical Co., Ltd., aggressively driven by Otsuka Pharmaceutical.  The Otsuka group has grown into a group consisting more than 150 companies worldwide.

In line with our corporate philosophy, “Otsuka-people creating new products for better health worldwide” and Otsuka’s mottos “JISSHO” (Proof through Execution) and “SOZOSEI” (Creativity), we strive to use our Group’s unique  assets to develop new scientific solutions, improving the lives of people worldwide, with creatively innovates products ranging from pharmaceuticals to consumer products.

Otsuka Group cultivates a dynamic corporate climate, reflection our vision as a healthcare company. We are dedicated to global sustainability, to our relationships with local communities and to protection of the natural environment.




Contact us

Office Address
15th Floor,
Unit no.1501-1502,
United Center Building,
323 Silom Road, Silom,
Bangrak , Bangkok 10500

Tel. 02-401-9560
Fax. 02-401-9561

Factory Address
50-50/1 Moo 8, Setthakit 1  
Road, Khlong Maduea, Krathum Baen, 
Samut Sakhon 74110 Thailand

Tel. 034 878 187-91
Fax. 034 878 185-86