O'Donoghue, Amie C.; Williams, Pamela A.; Sullivan, Helen W. - In: Social Science & Medicine 120 (2014) C, pp. 1-11
Although pharmaceutical companies cannot make comparative claims in direct-to-consumer (DTC) ads for prescription drugs without substantial evidence, the U.S. Food and Drug Administration permits some comparisons based on labeled attributes of the drug, such as dosing. Researchers have examined...