The Institute for Safe Medication Practices (ISMP) is alerting health care providers about potential confusion over new alternative packaging for casirivimab and imdevimab. These monoclonal antibodies, administered together as REGEN-COV, are used for treating COVID-19. ISMP recently received multiple reports about these types of errors.

ISMP has reported multiple mix-ups between the flu vaccine and COVID-19 vaccines since the former became available in September. All the mishaps happened in community and ambulatory care pharmacies, according to ISMP.