If you have erectile dysfunction, fildena 100 can help solve your problem. It is a PDE5 inhibitor and works to help men get a firm erection. It also helps prevent premature ejaculation.When using this medication, be sure to take it exactly as your doctor prescribes. Do not take more than one tablet at a time.It is best to swallow this pill whole and without chewing, crushing or breaking it. This will ensure that it is fully absorbed by your body.You should not consume alcohol while taking this medicine, as it will cause drowsiness. You should also avoid grapefruit or grapefruit juice while you are taking this medication.This medicine should be taken 30 to 60 minutes before sexual intercourse. It will provide you with a 4-hour erection.