What is a drug allergy?
A drug allergy is the abnormal reaction of your immune system to a medication.
Any medication — over-the-counter, prescription or herbal — is capable of inducing a drug allergy.
The most common signs and symptoms of drug allergy are hives, rash or fever. A drug allergy may cause serious reactions, including a life-threatening condition that affects multiple body.systems (anaphylaxis).
A drug allergy is not the same as a drug side effect, a known possible reaction listed on a drug label. A drug allergy is also different from drug toxicity caused by an overdose of medication.
Drug allergy signs and symptoms may include:
- Skin rash
- Hives
- Itching
- Fever
- Swelling
- Shortness of breath
- Wheezing
- Runny nose
- Itchy, watery eyes
While anyone can have an allergic reaction to a drug, a few factors can increase your risk. These include:
- A history of other allergies, such as food allergy or hay fever
- A personal or family history of drug allergy
- Increased exposure to a drug, because of high doses, repetitive use or prolonged use
- Certain illnesses commonly associated with allergic drug reactions
Source:
https://www.mayoclinic.org/diseases-conditions/drug-allergy/symptoms-
causes/syc-20371835
