Mail-order medications spend a significant amount of time outside the recommended safe temperature range for most medications. This lack of climate control can alter a drug’s chemical and physical makeup and reduce its efficacy, according to new findings presented at the American Society for Health-System Pharmacists (ASHP) Midyear Clinical Meeting and Exhibition.
As part of a study, researchers mailed 48 unrefrigerated packages containing a temperature data logger to six U.S. cities via the United States Postal Service. The packages were shipped four times to each location during the winter and four more times to each location during the summer. (One shipment was excluded from the study because it was lost due to COVID-19–related delays.)
While in transit, all packages were exposed to temperatures outside of the recommended range of 68 to 77 degrees Fahrenheit. Results showed that in the winter, the parcels spent from 68% to 87% of the time outside of that temperature range; in the summer, they spent from 27% to 54% outside of that range.
Medications improperly stored during shipping can become chemically or physically altered by the time a patient receives them. “Patients should be warned of these risks and have the option to fill their prescriptions at a local pharmacy, where temperature storage logs are meticulously tracked to ensure the integrity of the dispensed medications, at the exact same cost,” said Karlee Paloukos, a pharmacy student at the University of Utah and one of the study’s researchers.
Paloukos stressed that increased regulation of mail-order pharmacies could ensure that appropriate storage conditions for prescription drugs are maintained throughout transit.
This consideration is especially important for medications affected by temperature changes, noted Mary Ann Kliethermes, PharmD, ASHP director of medication safety and quality, who was not involved in the study. In addition, Kliethermes raised concerns about lost packages.
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