If Dateline has not aired in your area yet, be sure to tune in. Call me naive that I didn't know this but there is a large counterfeit Rx and non-Rx drug operation sending drugs to your local pharmacy.

One of the "players" is said to be the Mexican drug cartels. The story centered on a woman from China who has now been apprehended by authorities in China.

Her copycat Viagra were so good that the chief chemist at Pfizer Labs had a hard time on physical examination determining which was the counterfeit and the real.

IIRC, the copycat Viagra had some of the actual active ingredient of the real drug but the balance of the tablet was drywall!

Tamiflu is also being counterfeited as is Lipitor and a fair number of other popular Rx drugs.

IIRC, Advil was being made in a lab in Colombia. The yellow coating was lead-based highway paint.

Another drug was composed of concrete.