Should Brand Name Manufacturers Be Accountable For Side Effects Caused By Generics?


How can a brand-name pharmaceutical manufacturer owe a duty to patients who take only a generic version of its product? In a case of first impression in California, a state appellate court held on November 7, 2008 that Wyeth, Inc. owed a duty to plaintiff Elizabeth Conte, who developed a serious and irreversible neurological condition as a result of taking metoclopramide, the generic version of Wyeth’s Reglan, which is used to treat gastroesophageal reflux disease. In so holding, the California appellate court declined to follow the holdings of a majority of courts that have grappled with this issue.

In Elizabeth Ann Conte v. Wyeth, Inc. et al., the Court of Appeal of the State of the California in the First Appellate District in San Francisco, held that a brand-name pharmaceutical manufacturer’s common law duty to use due care when providing product warnings extends not only to consumers of its own product, but also to those patients whose doctors foreseeably rely on the name-brand manufacturer’s product information in prescribing a medication, even if the prescription is filled with the generic version of the drug. In reversing summary judgment granted to Wyeth by the trial court, the appellate court accepted Conte’s argument that Wyeth should be liable for her injuries because a brand-name manufacturer that disseminates information about its product owes a duty of care to ensure the information’s accuracy to all physicians who prescribe the drug in reasonable reliance on that information, even if the patient ends up taking the product’s generic equivalent.

The court agreed with Wyeth that Conte could not pursue a strict products liability claim against Wyeth. Indeed, Conte did not allege that Wyeth was strictly liability due to inadequate warnings. Rather, she claimed that Wyeth failed to exercise due care in disseminating its product information to physicians.  The court rejected Wyeth’s contention that Conte’s case was merely a product liability suit masquerading as a negligence case. The court held that the plaintiff could pursue claims of intentional and/or negligent misrepresentation based upon Wyeth’s labeling information about the safety of metoclopramide, the risks of its long term use, and the likelihood of serious side effects. 

Was the court correct in determining that Wyeth owed the plaintiff a duty in a negligence context where no such duty could be found to exist in a strict liability case? As a matter of public policy, should a brand-name drug manufacturer be subjected to what Wyeth argued might be “permanent and uncontrolled liability” in perpetuity. Even as a brand-name manufacturer’s sales decrease over time, its potential product liability exposure may actually increase because of higher market share won by generic competitors. Ironically, the generic manufacturer takes precious market share from the brand-name manufacturer at the same time that the court shifts the generic’s product liability exposure back to the pioneer. 

We believe that the better reasoned analysis of this issue may be found in Foster v. American Home Products Corp. (4th Cir. 1994) 29 F.3d. 165 (2003), in which the Fourth Circuit held that a manufacturer of a name-brand drug could not be held liable under a theory of negligent representation for an injury arising from the ingestion of a generic version of the drug. Taken to its logical extreme, in the brave new world envisioned by the Conte court, it may not matter that a plaintiff cannot identify the manufacturer of a product that caused an alleged injury so long as the plaintiff can plausibly claim to have relied on some other manufacturer’s operator’s manual.