Procter & Gamble Sued Over ZzzQuil ‘Non-Habit Forming’ Claim

Procter & Gamble Co. deceptively portrays ZzzQuil sleep aids as “non-habit forming” even though they’re made with an ingredient that can cause psychological dependence, two consumers allege in a new lawsuit.

ZzzQuil nighttime sleep aid products contain diphenhydramine, Stephen Sneed and Nickolas Cannon say in a proposed class action filed Monday in the US District Court for the Northern District of California.

Habits aren’t the same as addiction, the suit says. Even though users may not become physically dependent on diphenhydramine or experience an increase in tolerance or “blunting effect” from using it, they may become psychologically dependent on it ...