Updated on 13 September 2013
This report is the latest in the series of allegations made by whistleblowers and investigative reports related to corruption in China's pharmaceutical industry.
Earlier this year, four Chinese executives from British drugmaker GlaxoSmithKline were detained by the police in China over allegations that they used cash and sexual favors to bribe doctors and health officials to drive sales.
Last month, other whistleblowers alleged that Swiss drugmaker Novartis AG and French company Sanofi SA had paid bribes to doctors to boost drug sales. Johnson & Johnson was then fined by Chinese authorities for monopolistic pricing.
Last week, a privately held Chinese drugmaker, Gan & Lee Pharmaceuticals issued a statement claiming that it is looking into allegations that it spent $130.7 million (800 million yuan) to bribe doctors over a five year period.