Allergy to Medications

Allergies and adverse reactions to medications are common, and people can have a wide variety  of allergic symptoms.

One may develop a skin rash or difficulty breathing, while another person, on the same drug, may have no adverse reaction at all.

An allergic reaction to a medication occurs when the immune system overreacts  to a medication and triggers an allergic reaction.

One may also have a sensitivity and not an allergic reaction to a medication because it is not caused by reaction of the  immune system.

Certain medications are more likely to produce allergic reactions than others.

The most common are:

  • Antibiotics, such as penicillin
  • Aspirin and non-steroidal anti-inflammatory medications, such as Ibuprofen, ASA, etc.
  • Chemotherapeutic drugs
  • Monoclonal antibodies, such as Xolair