Listerine Ads Leave Bad Taste in Judge's Mouth

A Manhattan federal judge has enjoined Pfizer Inc. from claiming in advertisements that its Listerine mouthwash is "as effective as floss" in preventing plaque and gum disease. Judge Denny Chin said the clinical studies on which Pfizer relied in making its claim were flawed and the ads could mislead consumers into thinking that using mouthwash could replace flossing. Chin said he thought Pfizer's ads could even pose a public health risk.

This article requires premium access

This article requires premium access to Law.com. Please sign in or subscribe to read the full text.