From multiple sources, including Yahoo, Reuters, and the drug company's info sites:
AstraZeneca has suggested a mandatory requirement for pharmaceutical companies to submit all direct-to-consumer advertising to the U.S. Food and Drug Administration for review prior to its use.
AstraZeneca - maker of Crestor - will accept guidelines on direct-to-consumer advertisements, and the principles are reflected in its new ads, including those for Nexium.
My comment: Smart. Very smart. I don't think other drug companies will agree with this approach, however.