ADRENERGIC URTICARIA

By Gary M. White, MD


Adrenergic urticaria is a rare, physical urticaria in which epinephrine seems to mediate the rash.

Clinical

Adrenergic urticaria (AU) is characterized by transient outbreaks of red papules surrounded by halos of hypopigmented, vasoconstricted skin. It may appear very similar to cholinergic urticaria.

Treatment

Patients should avoid any triggers. Oral propranolol, up to 40 mg 3 times daily, is the most effective therapy for adrenergic urticaria and its discontinuation results in resurgence of symptoms within 72 hours. In one case resistant to beta-blockers and successfully treated with clotiazepam [J Dermatol. 2015 Jun;42(6):635-7].

References

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