Your doctor will consider prescribing you adrenaline auto-injectors (AAIs) if you:
- have had anaphylaxis where the cause is unknown (called idiopathic anaphylaxis)
- have had anaphylaxis where the cause is known but it’s not easy to avoid the allergen, for example if you have a peanut allergy
- have had a reaction in response to tiny amounts (trace amounts) of the allergen
- have Food-Dependent Exercise-Induced Anaphylaxis (FDEIA), where you are likely to have an allergic reaction to certain foods if you eat the food around the time of physical exercise
- have other significant risk factors, such as asthma, if you have a food allergy
- spend significant amounts of time in a location without access to emergency medical care.
You might not need to carry adrenaline in the long-term if you can easily avoid the allergen that affects you. For example, if you have an allergy to medicines.