An oversized poster of the Seinfeld character Kramer watches over Phil Rizzuto’s daily routine. When Rizzuto, named for the famous New York Yankees shortstop, swallows his 6 a.m. pills, Kramer is looming over him, looking quizzical. Same for the 9 a.m., noon, 6 p.m., and midnight doses, each fistful of pills placed in a carefully labeled Dixie cup. “I live on medication,” he says. Rizzuto’s daily