Sexual satisfaction is considered as of the elements in a successful male-female relationship. Of course there are relationships that are out of bounds of this norm. For a satisfying sexual relationship it is necessary to have an inclination to derive and give sexual pleasure from/to your partner. Sexual intercourse is one such means of experiencing sexual satisfaction. But what happens when this act of god is not achievable? Men loose their confidence and women may loose interest in their partners. Erectile dysfunction (ED) is one such reason which prevents a man from engaging in sexual intercourse with a woman. Also referred to as impotence, ED affects most men over 40 years of age. It can also result from injury, drug after effects, surgery, stress or inactive lifestyle with dependency on alcohol and drugs. Whatever the cause when it hits you, you are nothing but devastated. Counseling works more than medicine in such cases. One must understand that impotence is a medical condition that can be contained with treatment. Viagra has great success stories in treating impotence. This FDA approved drug is manufactured and marketed by Pfizer and has been considered to one of the most successful medical discoveries. Impotence is caused by the inability of the penile muscles to relax and allow blood flow during sexual stimulus. This condition is temporarily reversed by Sildenafil citrate contained in Viagra. Sildenafil citrate has the ability to act selectively when present in the blood stream. It relaxes the penile tissue and muscles causing the penile arteries to expand. During sexual stimulus blood rushes into the expanded arteries causing them to swell making the penis erect. Such a Viagra induced erection is harder and lasts longer enabling you to engage in sexual activity with your partner. Some men claim that this type of quality erection has more girth and is harder than the normal erection that they used to achieve. There are also unverified claims about men using Viagra for recreational purposes. These men did not suffer from ED but wanted to achieve a ‘super erection’ and got it with Viagra. Viagra must always be used under medical supervision. If you suffer from heart ailments or are over 65 years, you must be cautious in its use. You may have to begin with a lower dose and undergo regular monitoring to avoid undesirable complications. Under normal circumstances Viagra is taken once daily. Its effect begins to show in about 30 minutes after consumption and lasts for over 30 hours. Viagra by itself should not cause an erection. Sexual stimulation is required and your partner must understand this necessity. Viagra is for adult use only. You must keep it away from children. It can be stored at room temperature away from direct light and moisture. Purchase Viagra (blue diamond shaped pills) under proper medical prescription. If you are a long term user you may consider sourcing your orders and refills from an online pharmacy where you get cheap rates and additional free services. Always practice safe sex.