Enlarge / Dispensers for Charged Lemondade, a caffeinated lemonade drink, at Panera Bread, Walnut Creek, California, March 27, 2023. (credit: Getty | Smith Collection/Gado)

A second person has died after drinking Panera’s caffeinated “Charged Lemonade” drinks, which contain caffeine levels comparable to strong coffee and are sold in cups as large as 30 fluid ounces that are free to refill.

According to a lawsuit filed by family members Monday, 46-year-old Dennis Brown fell dead on a sidewalk from cardiac arrest while walking home from a Panera in Florida on October 9. Before he left the restaurant, he had ordered a Charged Lemonade and had two refills.

In September, college student Sarah Katz, 21, went into cardiac arrest after drinking a Charged Lemonade from a Panera in Philadelphia. Katz had a heart condition called long QT syndrome type 1 and had avoided energy drinks because of it, according to a lawsuit filed in October by her family.