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EpiPens may be effective long after labeled expiration date

EpiPens and other epinephrine autoinjectors might continue to work months after their labeled expiration date, researchers report in the Journal of Allergy and Clinical Immunology: In Practice, and the finding could save patients money. Autoinjectors contained 100% of the original dose six months after expiration and 95% of the original dose one year after expiration.

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