Wasp season drives shortage of allergy adrenaline pens

Adrenaline pens are in short supply in Vorarlberg because of an unusually strong wasp season and a rise in allergic reactions, ORF Vorarlberg reported. Pharmacist representative Christof van Dellen said patients may face longer waiting times.

Demand for the emergency medication is particularly high this year. Wasps are more numerous across Europe, while more people are reacting to stings with allergies. Van Dellen said supplies are also affected because Austria is not given priority by manufacturers when other countries pay more.

People with a wasp venom allergy can suffer a severe reaction within seconds or minutes after being stung. The immune system releases large amounts of histamine, which can cause a potentially life-threatening reaction throughout the body.

An adrenaline pen can be lifesaving during an allergic shock. Injected into the thigh, the adrenaline stabilises blood pressure and widens the airways. Pens usually expire after about a year and should then be replaced, Van Dellen said. In an emergency, however, using an expired pen is better than using none at all.

The prescription-only device is intended for people with serious allergies, not for non-allergic people who are stung. Cooling the sting and applying insect gel can help, while medication taken by mouth may be used for stronger reactions. Adrenaline pens are also important for allergies such as peanut allergies.

To reduce the risk of stings, people should avoid provoking wasps, wash their hands and mouths after eating, and cover drinks outdoors. Wasps are attracted to fruit, sweet foods, perfume and brightly coloured clothing. A safety distance of at least three metres is recommended from nests.