Pharmaceutical D/P

The base of peculiar technology and materials offer

WATAHAN TRADING was established in 1965.The pharmaceutical department was one of three sales departments in the company, and began with the business of importing bulk drugs. Since 1969, the department's primary product has been suppository-based Witepsol, [manufactured and] sold pursuant to an exclusive arrangement. Watahan Trading was the only company able to supply this suppository-based product at that time. Sales of this product have grown significantly in Japan as a treatment of quadriceps contracture- an adverse drug reaction to injections of antipyretic in infants. Witepsol is now one of our leading products and promises to be a key component of our product line in the future.

Over the years, WATAHAN TRADING has developed its own unique technology to isolate the bulk substance from women's urine which is used to treat infertility.

The company has expanded beyond its original business of importing bulk drugs, and now also has an established laboratory with the highest standards for quality control, allowing for the manufacturing division to play a vital role in the pharmaceutical department. The company's manufacturing business also makes it easier to obtain import permission for new peptide bulk drugs.

Our experienced scientists and sales people work together to develop and promote new products and are committed to our customers' satisfaction. For quality, reliability and innovation you can trust, look no further than WATAHAN TRADING.

Handling products
1.IOI Oleo products WITEPSOL , MIGLYOL , WITOCAN , IMWITOR each series
2.Hormone materials Human Menopausal Gonadotrophine:HMG , Purified-HMG , Human Chorionic Gonadotrophine:HCG
3.Peptide materials Buserelin Acetate (endometriosis) , Nafarelin Acetate (endometriosis) , Fertirelin Acetate (ovulation accelerator for animals) , Oxytocin(ecbolic) , Leuprorelin Acetate(premenopausal breast cancer) , Ganirelix Acetate(premature ovulation suppressor) , Glucagon(hypoglycemia)
4.In vitro diagnostic
reagents materials
Rabbit Whole Blood , Anti human CRP rabbit serum , Anti human β2-microglobulin rabbit serum , Diagnostic antigen for Syphill's
5.APIs Acetaminophen , 5%-Glycerol trinitrate ethanol solution , 2%-Glycerol trinitrate / glucose anhydrous mixture , Dalteparin Sodium , various Steroid , Tramadol hydrochloride , Metformin hydrochloride
6.Others 3M filters for manufacturing pharmaceutical and cosmetics , Swine pituitary-gland extracts (Increasing material for animal breeding)
Bussiness connections in Japan
  • Permachem Asid Ltd.
  • Shin Nippon Yakugyo Co.,Ltd.
  • Sumitomo 3M limited
Business Connections in overseas countries

IOI Oleo GmbH
Dynamit Nobel GmbH

U.S.A. C S Bio Co.
China Nanjing-King-Friend Biochemical Pharmaceutical CO., Ltd.
Kaei Shoji Inc.
Shandong Topscience Biotecn CO.,Ltd
Ningbo Renjian Pharmaceutical Group CO.,Ltd
Jiangxi haoran Bio-pharma CO.,Ltd
Korea LG Life Science,Ltd.
Mack Corporation
SE-AN Corporation
Taiwan Good Biotech Corp.
Malaysia Symbiotica Speciality Ingredients Sdn. Bhd.
India Granules India Limited.
Wanbury Limited.
ZCL Chemicals Limited.
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Amato Pharmaceutical Co., Ltd.
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Sampo Pharmaceutical Co., Ltd.
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Ayumi Pharmaceutical Corporation
Zenyaku Kogyo Co., Ltd.
Zeria Pharmaceutical Co., Ltd.
Taisho Pharmaceutical Co., Ltd.
Dainippon Pharmaceutical Co., Ltd.
Kyoritsu Seiyaku Corporation
Toa Eiyo Ltd.
Morishita Jintan Co., Ltd.
Alfresa Pharma Co.,Ltd.
Nissin Pharmaceutical Co.,Ltd.
Nihon Biotest Laboratory Co., Ltd.
Nihon Pharmaceutical Co., Ltd.
Nippon Zenyaku Kogyo Co.,Ltd.
Mylan EPD G.K.
ASKA Pharmaceutical Co., Ltd.
Nagase Medicals Co., Ltd.
Kyowa Pharma Chemical Co., Ltd.
Mochida Pharmaceutical Co., Ltd.
Mylan Pharmaceutical Co., Ltd.
Wholesellers Iwai Chemicals Company
Ace Trading Co., Ltd.
Eikodo & Co., Ltd.
Alfresa Pharma Co.,Ltd.
Iwaki Co., Ltd.
Inagaki Yakuhin Co., Ltd.
Nippon Bulk Yakuhin Co., Ltd.
Fujikawa & Co, Ltd.