Howie Cohen, Whose Alka-Seltzer Ads Spawned Catchphrases, Dies at 81

Howie Cohen, an advertising copywriter, often said he was congenitally familiar with indigestion. So perhaps it was only natural that in the 1970s, he, along with an ad agency colleague, would conjure up a catchy slogan that would not only sell more Alka-Seltzer but also become an American pop culture punchline: “I can’t believe I ate the whole thing.”

That bedside lament, spoken by the comedian and dialectician Milt Moss — he actually said that thing on camera — vaulted from a 30-second TV commercial to sweatshirts, supermarket windows and even church marquees.

It proved even more popular than “Try it, you’ll like it,” the first catchphrase for Alka-Seltzer that Mr. Cohen coined with his business partner, Bob Pasqualina, an art director at the Manhattan agency Wells Rich Greene.

Mr. Cohen, who helped popularize products and companies like Petco (“Where the pets go”) and the fast-food chain Jack in the Box (exploding its clown mascot in a TV commercial in announcing a new, more sophisticated menu), died on March 2 at his home in Los Angeles. He was 81.