Sometimes, Viagra doesn't have the effects that are expected to occur in males. This is unusual, but probable. There are many reasons for this, and it is necessary to discuss all the options before buying this treatment. Some people don't believe that it can work for them, and this makes it harder to prescribe the medicine. Viagra works when the patient is sexually aroused. Because the medication works to rehabilitate the chemical disbalance in the brain, it should be taken half an hour to an hour before having sex, and will look no different to an erection that has proceeded without the help of Viagra. Since Viagra was introduced in 1993 it has an 80 percent success rate with the maximum dosage. For the patients who didn’t succeed with the medication, it is important to know that Viagra does not simply leads to an erection. There has to be a definite level of sexual incitement before the chemical progress can commence. Besides, both partners should have an equal desire for having sex. Many people think they need Viagra to reach an erection without being completely excited. Sexual closeness alone will not help Viagra to function, as the mind has to desire the act before the blood flow to the phallus can be added. If the partner isn't willing to have sex, then it is improbable that the patient will be excited enough for Viagra to work. Discussing the issue with your loved one, and finding all the information together can bring both partners closer, help them understand and ultimately increment knowledge and sexual desire for each other. Taking Viagra half an hour before sex, and engaging in acts that increase desire can have the better outcome from the drug. Thus, the more aroused both partners are, the more possible Viagra is to work correctly to achieve and sustain an erection without the desire decreasing. Psychological causes may also prevent Viagra from working sufficiently. It is a usual problem for patients suffering from erectile dysfunction to also suffer from depression or anxiety. It is the discomfort suffered by the man that prevents sexual satisfaction. In case the patient is uncomfortable due to the stereotype often attached to men who suffer from erectile dysfunction, then this could have opposed effects even with Viagra. Other reasons such as interference, or disbelief in the drug could mean that an erection is not possible, and these factors should be addressed before the general practitioner prescribes Viagra. Viagra is prescribed to aid males of all ages and many levels of erectile dysfunction achieve and keep an erection for some hours. It is one of the most famous erectile dysfunction medicine on the market that has a high success rate. It doesn't have to be an issue, and with the full awareness, sexual satisfaction is within your reach.