Ved indgift af en enkeltdosis sildenafil 100 mg sammen med erythromycin, en specifik CYP3A4 - hæmmer, i steady state (500 mg 2 gange dagligt i 5 dage) sås en 182% stigning i optagelsen af sildenafil (AUC).
When a single 100 mg dose of sildenafil was administered with erythromycin, a specific CYP3A4 inhibitor, at steady state (500 mg twice daily. for 5 days), there was a 182% increase in sildenafil systemic exposure (AUC).