Filitra 40 with care can bring in better results for ED patients. E.g. Consuming alcohol before or post taking Filitra 40 can increase the side effects. Also, grapefruit or grapefruit juice has been found to increase drug side effects. Patients are advised to avoid both the above at the time of taking Filitra 40 to ensure lesser or no side effects at all and enjoy a prolonged penile erection during the sexual encounter.