I hadn't heard anything about this in the news until I ran across a blog article about it today. Owners should be on the look-out for counterfeit Advantage and Frontline flea & tick control products. Usually the counterfeit products are from non-veterinary suppliers.
The U.S. Environmental Protection Agency is intensifying its evaluation of spot-on pesticide products for flea and tick control due to recent increases in the number of reported adverse reactions in pets treated with these products. Read more at...
Specific info on counterfeit Advantage and Frontline for dogs and cats is at
Has some info & photos on how to identify potentially counterfeit products.