From the Los Angeles Daily News:
Pill makers rushing to push risks of buying drugs abroad
As California moves closer to passing laws that would make drug imports from Canada easier, the pharmaceutical industry is attempting to debunk the benefits of buying medication abroad.

Most of the anti-importation rhetoric stems from pharmaceutical companies that feel threatened by the glut of prescription drugs coming from Canada. The drug industry says it is difficult to ensure quality when prescriptions are filled in foreign countries. But advocates of drug imports are convinced that soaring costs can be tamed by tapping Canada, where regulations virtually parallel those of the United States.