Sometimes, Viagra doesn’t show the effects that are to happen in patients. This is rare, but probable. There are many reasons for this, and it is important to know all the options before buying this medicine. Some men don’t believe that it can work for them, and this makes it difficult to prescribe the treatment. Viagra works when the patient is sexually excited. Because the medicine works to restore the chemical imbalance in the brain, it should be taken 30 minutes to an hour before having sex, and will look no unusual to an erection that has proceeded without the help of Viagra. Since the introduction of Viagra in 1993 it has an 80 percent success rate with the maximum draught. For the patients who didn’t succeed with the drug, it is necessary to know that Viagra does not plainly cause an erection. There needs to be a definite level of sexual excitement before the chemical process can start. Besides, both parties must have an equal desire for the sexual activities. Many men think they need Viagra to reach an erection without being completely sexually aroused. Intimacy alone will not help Viagra to function, as the mind must desire the act before the blood flow to the phallus can be grown. If the partner doesn’t want to have sex, then it is unlikely that the patient will be stimulated enough for Viagra to function. Talking over the problem with your lover, and searching for all the information together can bring both partners closer, help them understand and ultimately increment awareness and sexual desire for one another. Taking Viagra 30 minutes before sexual activity, and involving in acts that excite desire can produce the better results from the treatment. Thus, the more excited both partners are, the more probable Viagra is to work correctly to achieve and keep an erection without the desire fading. Psychological reasons might also prevent Viagra from working sufficiently. It is a general problem for men suffering from erectile dysfunction to as well suffer from depression or anxiety. It is the discomfort suffered by the man that won’t allow sexual satisfaction. If the patient is embarrassed due to the harrassment often attached to males who suffer from erectile dysfunction, then this could have opposed results even with Viagra. Other causes such as interference, or disbelief in the treatment could mean that an erection is not possible, and these causes should be treated before the general practitioner prescribes Viagra. Viagra is prescribed to help males of all ages and many levels of erectile dysfunction achieve and keep an erection for several hours. It is one of the most famous erectile dysfunction medication in the world that has a high success rate. It doesn’t need to be an issue, and with the correct knowledge, sexual satisfaction is within your reach.