Are you savvy enough to detect which packaging and pills are fakes? Technology is making it hard to tell legitimate products from rip-offs, and we're not talking Gucci purses here. Here are two photos showing the small differences between authentic and counterfeit drugs that were intercepted in Canada and the U.S.

This is an example of a counterfeit of the human growth hormone drug Serostim.

Image courtesy of National Review of Medicine (Canada)

Suspect (L) and authentic (R) Viagra tablets, one of the most popular drugs purchased from online pharmacies.