Interacciones del medicamento Viagra con otras sustancias Existen sustancias y medicamentos que pueden alterar la forma en la que Viagra es absorbido o eliminado por el cuerpo. About sildenafil Viagra Sildenafil is a medicine used to treat erection problems erectile dysfunction. Sildenafil may cause side effects. If you are taking sildenafil for erectile dysfunction, your doctor will probably start you on an average dose of sildenafil and increase or decrease your dose depending on your response to the medication. Sildenafil comes as a tablet and suspension liquid to take by mouth. When a man is sexually stimulated, his body’s normal response is to increase blood flow to his penis to produce an erection.AdSay Goodbye to Performance Anxiety and Hello to Improved Sexual Stamina! Reviews and Comparisons Of The Best Male Enhancement Products. See Which Products Brands Voted By Men · Over 20 Years Online · Honest & Unbiased Reviews. Typical dosing for Sildenafil (Viagra) The typical dose is to take 50 mg of sildenafil (Viagra) by mouth, about 1 hour before sex, as needed. The maximum recommended dose is mg. Don’t take sildenafil (Viagra) more than once daily (at any dose). Written by Brian Leonard, PharmD, BCACP, BCGP. Sildenafil mg con 8 tabletas Marca del Ahorro. $ Agregar al carrito. * Precio exclusivo de tienda en línea. * Producto sujeto a disponibilidad. * Descuento ya incluído en precios mostrados. Sildenafil 50 mg 4 tabletas Masticables Marca del Ahorro. $ Agregar al carrito.