How does erythromycin interact with antihistamines and are there risks of QT prolongation or other adverse effects when these medications are used together?
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How does erythromycin interact with antihistamines and are there risks of QT prolongation or other adverse effects when these medications are used together?
Erythromycin can increase the risk of QT prolongation when taken with antihistamines such as astemizole or terfenadine, potentially causing serious cardiac issues.