Answer
Alfuzosin hydrochloride should not be taken with clarithromycin because clarithromycin strongly inhibits CYP3A4, potentially increasing alfuzosin blood levels, and is known to increase the QTc interval.
Sources for this answer
- Xatral XL 10mg prolonged release tabletsSANOFI · emc · SmPC §4.5 Interaction with other medicinal products · Version 20Document updated
- Xatral XL 10mg prolonged release tablets