Filitra 40 mg is a medication used to treat erectile dysfunction (ED). Its active ingredient is vardenafil, which is similar to sildenafil (found in Viagra) and tadalafil (found in Cialis) in terms of its function. Vardenafil works by inhibiting the enzyme phosphodiesterase type 5 (PDE5). This leads to increased levels of cyclic GMP, which helps relax the blood vessels in the penis and allows for increased blood flow. This helps achieve and maintain an erection when sexually aroused. https://www.flatmeds.com/product/filitra-40-mg/