WASHINGTON — The discovery that a fake version of the widely used cancer medicine Avastin is circulating in the United States is raising new fears that the multibillion-dollar drug-counterfeiting trade is increasingly making inroads in the U.S.
The criminal practice has largely been relegated to poor countries with lax regulations. But with more medicines and drug ingredients for sale in the U.S. being manufactured overseas, American authorities are afraid more counterfeits will find their way into this country, putting patients’ lives at risk.
The Avastin discovery follows other recent instances in the U.S. of counterfeiting, involving such drugs as Viagra, the cholesterol medicine Lipitor and the weight-loss pill Alli.
The FDA announced Tuesday it is investigating fake vials of Avastin that were sold to at least 19 doctors and clinics, including 16 sites in California, two in Texas and one in Chicago. The FDA said it has not received any reports of patients who were harmed.
The FDA gave assurances Wednesday that the U.S. remains one of the most secure pharmaceutical markets in the world. But the news sent cancer doctors scrambling to check their records.



