Simira Diagnostics
Immunology

ALLERGY TEST - DRUGS

  • Report in 5 hrs
  • Serum sample

Price

₹3,500

  • Report in 5 hrs
  • Free home sample collection
  • ₹200 off at checkout
  • NABL certified lab

or call 77900 98009

ALLERGY TEST - DRUGS

₹3,500

About this test

The drug allergy test measures specific IgE antibodies in the blood against commonly used medicines, such as penicillins, amoxicillin, cephalosporins, insulin, and chlorhexidine. The exact drug list varies by lab.

Results above 0.35 kU/L usually indicate sensitization, suggesting a risk of immediate allergic reactions like hives, swelling, breathing difficulty, or anaphylaxis.

The test detects only IgE-mediated reactions and does not detect delayed reactions, such as drug rashes, SJS, or DRESS. A negative result does not fully rule out allergy, so skin testing or a supervised drug challenge may be needed.

Questions about this test

When should I get the ALLERGY TEST - DRUGS test?

You should get a drug allergy test if you have had hives, itching, swelling of the lips or face, breathing difficulty, or a sudden drop in blood pressure after taking a medicine, especially antibiotics like penicillin. It is also recommended before surgery if you have a past reaction, and to confirm or rule out a reported drug allergy.

How should I prepare for the ALLERGY TEST - DRUGS test?

No fasting is required for a drug allergy test, and antihistamines do not affect blood test results. Ideally, test 4–6 weeks to 6 months after the reaction, when antibody levels are most reliable. Never take the suspected drug to “test” it yourself. Bring details of the medicine name, dose, timing, and symptoms of your reaction.

Do I require fasting for the ALLERGY TEST - DRUGS test?

No, fasting is not required for a drug allergy test. You can eat and drink normally before giving your blood sample, and you can usually continue antihistamines, as they don’t affect this blood test. Bring details of your previous drug reaction to help your doctor interpret the results.

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