The U.S. Food and Drug Administration is warning that the labels on some EpiPen and EpiPen Jr. auto-injectors – including authorized generic versions – might prevent the device from easily sliding out of their carrier tubes.

A letter to health care professionals from Pfizer, the manufacturer of the Mylan EpiPen, said the sticker on the auto-injector unit "may have been improperly applied, causing resistance when removing it from the carrier tube."

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While the issue does not affect the auto-injector device itself and the epinephrine it delivers, it could slow down its use during an emergency.

Patients and caregivers are urged to inspect their epinephrine auto-injector prior to needing it to ensure they can quickly access the product.

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Waymo autonomous vehicles operate across 65 square miles inside I-285 and have been involved in six incidents with Atlanta Public School buses since May. Waymo issued a recall because of their cars briefly stopping or slowing down before continuing forward while a bus was stopped and flashing its lights. (Courtesy of Atlanta Public Schools)

Credit: Courtesy of Atlanta Public Schools