Financial report 2011 sienna biotec india, Sienna biotec India is complex API manufacturer and joint Indian venture of Siena Biotech S.p.A. which is a well knon innovative, clinical-stage drug discovery company whose R&D efforts are focused on discovering new drugs for therapeutic intervention against neurodegenerative diseases and oncology. SIENA BIOTECH is a limited private company founded in 2000 and actively operating in research since 2004. It is based on a drug discovery model encompassing a series of technological platforms ranging form target identification to clinical proof of concept. Sienna Biotec Pvt. Ltd. India is a corporate venture with an Indian pharmaceuticals company to extend its drug discovery since 2009. Sienna Biotec India had its research based in Germany as Sienna Biotec GmbH. The company is widely known as a manufacturer of Gabapentin (depression, mania and anxiety drug) and Pregabalin (diabetic neuropathy, surgical dental pain drug).