Yost started out in this business 28 years ago, writing orders for pharmacies after joining his wife's family wholesale drug business, Kauffman-Lattimer.

FORBES: Easy Pill to Swallow

In the U.S., for example, three times in the last year counterfeit versions of the Roche Group cancer drug Avastin have infiltrated the wholesale supply and been sold to cancer clinics and hospitals.

NPR: Drugmakers, Interpol Ramp Up Fight Against Fakes

In the wake of the Vioxx debacle, a broader backlash could scare some patients into a wholesale retreat, hurting drug sales (and drug stock prices).

FORBES: Just Say No