According to the Chairman of the Society of Hospital Pharmacists of Hong Kong, up to 90 percent of all cancer drugs in Hong Kong are bought by residents of mainland China.
The mainlanders illegally buy the cancer drugs such as Herceptin in Hong Kong due to concerns about the medical counterfeit drugs and other safety issues. In addition, the cost to purchase drugs is cheaper than on the mainland. One man who was buying breast cancer treatment drugs for his wife stated that he would saave over $1,313 (8,000 Yuan) buying Herceptin in Hong Kong than in China.
Source: AFP, “Hong Kong’s illegal cancer drug trade driven by mainland buyers,” Google News, December 2, 2013.