Fliban 100 mg and Sildenafil are both used to address sexual dysfunction, but they differ significantly in terms of active ingredients, mechanisms of action, target users, and conditions treated. Works on the central nervous system, modifying brain chemicals (increasing dopamine and norepinephrine, decreasing serotonin) to enhance sexual desire. Works on the vascular system, inhibiting PDE5 to relax blood vessels and increase blood flow during sexual stimulation.