What is the efficacy of prophylactic corticosteroids and antihistamines regimens against anaphylaxis caused by radiocontrast media?

Updated: May 16, 2018
  • Author: S Shahzad Mustafa, MD; Chief Editor: Michael A Kaliner, MD  more...
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The precise efficacy of these regimens is difficult to evaluate, but they generally are considered effective. One author states that the recurrence rate for patients with a previous reaction was reduced from 17-60% to 9% when conventional contrast material was used; the rate was reduced to less than 1% when low osmolality material was used after a pretreatment regimen.

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