Drug Allergy Basics

What Is a Drug Allergy?

A drug allergy is an immune system reaction to a medication. These reactions can occur immediately or develop hours to days after taking a drug.

Common Symptoms

Symptoms of a drug allergy may include:

• Skin rash or hives
• Itching
• Swelling
• Shortness of breath
• Severe reactions (anaphylaxis)

Common Medications Involved

Drug allergies are often associated with:

• Antibiotics (such as penicillin)
• Anti-inflammatory medications
• Pain relievers
• Certain prescription medications

Not All Reactions Are Allergies

Some medication reactions are side effects rather than true allergies. Mislabeling a drug allergy can:

• Limit treatment options
• Lead to less effective medications
• Increase healthcare costs

Managing Drug Allergies

Management includes:

• Identifying medications to avoid
• Documenting allergies clearly
• Discussing alternatives with healthcare providers
• Seeking evaluation when uncertain

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Unsure About a Medication Reaction?

Schedule an evaluation with AASP for accurate diagnosis and safe treatment planning.