Sunday, June 3, 2012

Is it a drug allergy or just a side effect?



Medication reactions are not always an allergy.  For example, many antibiotics will lead to non-allergic side effects, such as stomach upset or yeast infections.  This is due to irritation of the stomach or killing off of "good bacteria" as well as the bad -- leading to overgrowth of yeast and other organisms that normally are kept under check.

True allergy to a medication is an immune reaction to the drug, leading to release of histamine that can cause anything from mild to severe hives, swelling of the eyelids, lips, mouth, or throat, breathing difficulty, or life-threatening anaphylaxis.  Symptoms of a drug allergy can range from mild to life-threatening.  Once a drug allergy has occurred, it is important to let your doctors know, so that this drug can be avoided as a treatment option in the future.

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