CHAPEL HILL, N.C. -- The U.S. Food and Drug Administration added Epipen and Epipen Junior, as well as their generic versions, to its drug shortages list last week.

• Epipens added to shortage list last week.
• Epipen Junior affected as well.
• Doctor: No shortages in UNC System

They cite manufacturing delays as the reason for the shortage.

UNC physician Dr. Daniel Park says there's no shortage within the UNC System but the potential for one is scary.

"It's the standard of care to treat anaphylaxis, which is a severe allergic reaction,” said Park. “It manifests as a full body response to an allergen, such as food or a bee sting an that can be life-threatening."

While it's highly unlikely hospitals and emergency rooms would ever run out of the life-saving medication, patients with severe allergies need 24/7 access to their auto-injectors.

"There's a lot of doom and gloom regarding this issue right now, but don't panic,” said Park. “We have great infrastructure to take care of this in North Carolina in regards with our hospitals working together with our local pharmacies."

Mylan is encouraging customers who are unable to fill their Epipen prescriptions to call its customer service line at 1-800-796-9526.