3 doctors weighed in:

Symptoms of a dextromethorphan allergy?

3 doctors weighed in
Dr. Lee Perry
Internal Medicine - Allergy & Immunology
2 doctors agree

In brief: Not likely

Delsym (dextromethorphan) can cause adverse reactions in some people, such as nausea, dizziness, fatigue or abdominal pain.
These are infrequent in nature. I am not aware of any cases of dextramethorphan allergy.

In brief: Not likely

Delsym (dextromethorphan) can cause adverse reactions in some people, such as nausea, dizziness, fatigue or abdominal pain.
These are infrequent in nature. I am not aware of any cases of dextramethorphan allergy.
Dr. Lee Perry
Dr. Lee Perry
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