Patients Taking β-Blockers Do Not Require Increased Doses of Epinephrine for Anaphylaxis.

Background: β-Blocker use has been associated with increased anaphylaxis severity.

Objective: We aimed to assess for an association between β-blocker use and requirement for more than 1 dose of epinephrine for anaphylaxis management.

Methods: We conducted a retrospective observational study of patients seen in our emergency department for anaphylaxis between April 2008 and January 2015.