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