इट्राकोनाज़ोल और सिल्डेनाफिल का इंटरैक्शन

Aliskiren Riociguat Sildenafil (for pulmonary hypertension) Tadalafil (for pulmonary hypertension) Not recommended during and 2 weeks after TOLSURA treatment.

Dutasteride Oxybutynin Sildenafil (for erectile dysfunction) Tadalafil (for erectile dysfunction and benign prostatic hyperplasia) Tolterodine Monitor for adverse reactions.

For sildenafil and tadalafil, see also Urologic Drugs below.

For sildenafil and tadalafil, see also Cardiovascular Drugs above.

CYP3A4 inhibitors (e.g., ritonavir, ketoconazole, itraconazole, erythromycin) increase SILDENAFIL ORAL FILM exposure.

Erythromycin or strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, saquinavir): Consider a starting dose of 25 mg.

Ritonavir and other CYP3A4 inhibitors Co-administration of ritonavir, a strong CYP3A4 inhibitor, greatly increased the systemic exposure of sildenafil (11-fold increase in AUC).

Co-administration of erythromycin, a moderate CYP3A4 inhibitor, resulted in 160% and 182% increases in sildenafil Cmax and AUC, respectively.

Co-administration of saquinavir, a strong CYP3A4 inhibitor, resulted in 140% and 210% increases in sildenafil Cmax and AUC, respectively.