From Optflux
Erythromycin: (Moderate) Monitor for an increase in sildenafil-related adverse reactions if coadministration with erythromycin is necessary; consider a starting dose of 25 mg of sildenafil when prescribed for erectile dysfunction. <a href="https://viagraoktobuy.com/">buy viagra</a> Influence of postshock epicardial activation patterns on initiation of ventricular fibrillation by upper limit of vulnerability shocks.