Pfizer sues P&G

Pfizer, the maker of Listerine mouthwash, is suing Procter & Gamble (P&G) in the US over its claim that four out of five dentists recommend P&G’s Crest Pro-Health mouthwash.

Pfizer, the maker of Listerine mouthwash, is suing Procter & Gamble (P&G) in the US over its claim that four out of five dentists recommend P&G’s Crest Pro-Health mouthwash. Pfizer claims the ads are intended to compare Crest with Listerine.