, Volume 113, Issue 4, pp 376-378

Reversible arrhythmias observed in patients treated with recombinant alpha2 interferon

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We have treated 25 patients, 7 with breast cancer and 18 with non-Hodgkin's lymphoma, with recombinant alpha2 interferon. In 5 patients we observed cardiac arrhythmias that were unexpected and required treatment. No deaths have occured that we can attribute to interferon, though 1 patient had to be resuscitated. Age, prior cardiac disease, prior treatment with doxorubicin, and interferon dose appear to be predisposing factors for this toxicity.