Erythromycin and Losartan interaction
Erythromycin and Losartan: the Losartan prescribing label report no clinically significant interaction between these two.
No interaction
No clinically significant interaction reported. The label studied or considered this pair and found nothing meaningful.
What the FDA labels say
From the Losartan (COZAAR) label · effective 2026-01-20
No interaction
The AUC of active metabolite following oral losartan was not affected by erythromycin, an inhibitor of P450 3A4, but the AUC of losartan was increased by 30%.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.