SW China drought may prompt Tamiflu producer to replace major ingredient   2010-03-26 21:38:28 FeedbackPrintRSS

BEIJING, March 26 (Xinhua) -- The severe drought ravaging southwest China, home to an ingredient in the anti-flu drug Tamiflu, may prompt Roche, Tamiflu's biggest producer, to use substitute ingredients.

Southwest China produces 85 percent of the world's Star Anise, an ingredient of Tamiflu, and the region's production may be "substantially reduced" as a result of the drought, said Li Changxin of, China's biggest traditional medicine trading website.

Two thirds of the Star Anise used by Tamiflu's biggest producer, F.Hoffmann-La Roche Ltd., comes from China, said Lu Shunzhong from the Forestry Research Institute of south China's Guangxi Zhuang Autonomous Region.

But Roche spokesman Cao Yong told Xinhua he is "not aware of any possible effect on Tamiflu's production posed by the drought."

Star Anise is the best source of shikimic acid, an indispensable part of Tamiflu, which is used against the A/H1N1 flu, said Li Yi, secretary general of Guangxi's Flavors and Fragrances Industry Association.

While it is true a major event like the drought could have a ripple effect, Star Anise can be substituted, and so Tamiflu's production will not be greatly affected, Cao said.

Guangxi produces 80,000 tonnes of the plant annually, about 85 percent of total world production, according to Guangxi Forestry Department statistics.

"Up to 30 percent of the Star Anise plants in Guangxi are withering," said Yang Wende, head of Guangxi's Star Anise Association.

In Yunnan province, the second largest producing region, over 7,000 Mu (466.7 hectares) will see no yield at all while 50,000 Mu of Star Anise crops are withering, said a Yunnan forestry official surnamed Yang.

Star Anise demand is expected to outweigh supply in Guangxi, and its price has already tripled since early 2009, Li said.

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Editor: Wang Guanqun
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