6 doctors weighed in:
Whats sudafed allergy?
6 doctors weighed in

Dr. David Shulan
Internal Medicine - Allergy & Immunology
5 doctors agree
In brief: I have not seen it
True allergic reactions to sudafed are rare.
More commonly people will not tolerate the drug effects of the medication. This can include heart racing, elevated blood pressure, sleeplessness, feeling jittery. This medication can case problems with an enlarged prostate and certain kinds of glaucoma. In the first trimester of pregnancy, it is associated with an increased incidence of a birth defect.

In brief: I have not seen it
True allergic reactions to sudafed are rare.
More commonly people will not tolerate the drug effects of the medication. This can include heart racing, elevated blood pressure, sleeplessness, feeling jittery. This medication can case problems with an enlarged prostate and certain kinds of glaucoma. In the first trimester of pregnancy, it is associated with an increased incidence of a birth defect.
Dr. David Shulan
Dr. David Shulan
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