Sildenafil citrate is a phosphodiesterase type 5 (PDE5) inhibitor, which works by increasing blood flow to the penis, allowing a man to achieve and maintain an erection when sexually stimulated.Silditop 50 mg is typically taken orally, as needed, approximately 30 minutes to 1 hour before anticipated sexual activity. It's important to follow the dosage instructions provided by a healthcare professional and not to exceed the recommended dose. https://www.genericday.com/silditop-50-mg.html