Achieving an erection is actually a highly complex physiological process that requires successful function and stimulation of neurological, hormonal, vascular, muscular, and of course psychological components. But ultimately, erections are all about blood flow, and the most widely used ED drugs work by interfering with the chemical process that lets blood leave an erect penis.
Medication can be a useful way to treat the symptoms of erectile dysfunction. If using a little blue pill-like drug, it is best to take it around 60 minutes before sexual activity, and its effects can last up to 4 hours. However, newer drugs can last around 48hrs, or have a faster onset of action than an hour. Therefore, it is worth speaking to your doctor about which medication is right for you. It is worth stressing that no PDE-5 inhibitors can cause an erection if there is a lack of sexual arousal or if the problem is not fixed by a dilation in blood vessels. Therefore, it is imperative that if you have been suffering from ED for more than a few weeks, that you see your doctor rather than opting for the over-the-counter quick fix of erectile dysfunction drugs.
The take-home message is that yes, erectile dysfunction drugs are a great way to re-establish your erection and to enjoy your sex life once again, but before you treat the symptom you need to find the underlying cause. Therefore, it is essential to visit a doctor who understands the processes and conditions that can affect erectile function, and get yourself checked. Buying over-the-counter little blue pills is like buying a plaster without ever knowing why you were bleeding in the first place.