STAT is co-publishing this article by KFF Health News.

SAN FRANCISCO — At a Walgreens in this city’s bustling Japantown neighborhood, pharmacist Margaret On stocks two boxes of long-acting insulin pens from California’s new prescription drug label, CalRx, emblazoned with the state’s iconic grizzly bear.

Although she hasn’t dispensed any, On plans to keep them on hand. “It’s good to have if a patient comes in and doesn’t have health insurance,” she said. “Or just in case of emergencies.”