Drug shortages increased the financial incentives for some pharmacies to provide counterfeit or illegally imported drugs. The drugs subject to warnings have all been injectable treatments typically distributed through medical practices and not directly to patients.
In October, the FDA ordered operators of about 4,100 websites to immediately stop selling unapproved medications to U.S. consumers. The vast majority of those sites were operated by Canada Drugs. The site was still operating Friday.
Genuine Botox is made by Allergan Inc., based in Irvine, Calif. Avastin is made by Roche Holding AG's Genentech unit.
The FDA's warning letter, plus a list of doctors who received it: http://1.usa.gov/R7jKiR