Virchow Group We comprise of six active pharmaceutical ingredient (API) and drug intermediate manufacturing units and two biotech units. Incorporated in 1981, the flagship company of the group is today the largest producer of Sulfamethoxazole in the world. In fact, we services more than 80% of the worldwide Sulfamethoxazole requirement. Other group companies are leading manufacturers of Ranitidine, Cephalosporins and various other APIs and bio-pharmaceuticals. Virchow also undertakes custom synthesis and manufacture of drug intermediates. The production facilities are state of the art with efficient modern equipment and optimised production processes for large-scale production. Most of the products are manufactured in dedicated production facilities with dedicated equipment as per current Good Manufacturing Practices (cGMPs). Our Companies have fully implemented Good manufacturing Practices in its system and the production facilities have been audited and certified by various Regulatory Agencies and renowned Multinational Companies like Glaxo Smithkline, Hoffmann La Roche, Merck Generics & various generic manufacturers worldwide.