HEALTH ENCYCLOPEDIA

Diseases & Conditions A - Z
powered by Talix

Drug Allergy Tests

If you have an allergic reaction to a prescription or over-the-counter medication, your doctor may need to perform some tests in order to confirm your allergy. These may include:

Skin testing

For some drugs, an allergy skin test can be used to uncover whether you are allergic. During a skin-prick test, a minute amount of the drug is injected into the skin—usually the back or forearm. A drug reaction will be deemed an allergic one if redness, a bump, or other noticeable skin inflammation develops. There are also intradermal tests that demonstrate Immunoglobulin E (IgE) allergies for only a few medications, among them penicillin and some other antibiotics. In this method, a small amount of the allergen is injected just under the skin and the site is monitored for a reaction. Either a skin-prick test or an intradermal test may be used, depending on the drug in question.

Drug provocation testing

In certain serious situations in which a patient’s sensitivity is not known regarding a powerful drug, provocation testing is performed; increasing doses of the drug—taken orally or under the skin—are given at planned intervals. If reaction to the drug does not indicate an allergy, the drug may be a safe treatment for the patient. The risk involved with this kind of testing includes a severe reaction, potentially even anaphylaxis.


Content licensed from:

Written by: the Healthline Editorial Team
Medically reviewed : Stephanie Burkhead, MPH

This feature is for informational purposes only and should not be used to replace the care and information received from your health care provider. Please consult a health care professional with any health concerns you may have.
health
TOOLS
Symptom Search
Enter your symptoms in our Symptom Checker to find out possible causes of your symptoms. Go.
Drug Interaction Checker
Enter any list of prescription drugs and see how they interact with each other and with other substances. Go.
Pill Identifier
Enter its color and shape information, and this tool helps you identify it. Go.
Drugs A-Z
Find information on drug interactions, side effects, and more. Go.
Advertisement

 

 

Advertisement