The first data on efficacy of sildenafil were published by Goldstein and colleagues (1998) Sexual intercourse was successful in 69% of all attempts for the men receiving sildenafil, as compared with 22% for those receiving placebo (p<0.001). The mean numbers of successful attempts per month were 5.9 for men receiving sildenafil and 1.5 for those receiving placebo (p<0.001). Efficacy parameters for sildenafil in 11 double-blind, placebo controlled, pre-marketing studies included the International Index of Erectile Function (IIEF) erectile function domain score and especially the questions 3 and 4 (ability to attain and ability to maintain an erection sufficient for intercourse respectively) as well as the general efficacy question (GEQ). In 6 of the 11 trials, patients maintained an event log of sexual activity. Patients were stratified in subgroups in terms of age, race, body mass index (BMI), duration of ED, ED etiology, smoking status, and concomitant conditions/medications (Figure ​(Figure2).2). All subgroups were well balanced between placebo and sildenafil. After 12 weeks of treatment, 46.5% to 87% of patients in the subgroups receiving sildenafil indicated that treatment had improved their erections compared with 11.3% to 41.3% of patients in subgroups receiving placebo. In the 6 trials in which sexual event log data were collected, significantly greater percentages of successful attempts at intercourse were reported by patient subgroups receiving sildenafil (52.6% to 80.1%) compared with patient subgroups receiving placebo (14.0% to 34.5%). All differences were statistically significant (Carson et al 2002).
Psychosexual Relationship Specialist at End the Problem, Jacqui Olliver is a published author who renews relationships by solving people's emotional and sexual issues. In the past 7 years, she has helped over 1,000 men, women, and couples restore a relaxed, happy, and fulfilling sex life and enhance their overall connection. Click here to check out her programs or to book a complimentary strategy session and start getting real answers to solve the real problems.

Researchers at Johns Hopkins University last year looked at 3,400 healthy Americans and found that men who were vitamin D deficient were 32% more likely to have trouble getting it up than those with sufficient levels, even after adjusting for other ED risk factors. In fact, the connection is so common, Walker says D levels are something he always checks in ED patients. Why? The sunshine vitamin is crucial for keeping the endothelial cells that line blood vessels healthy. Without enough of the stuff, blood flow is inhibited, affecting everything from your heart to your hard-on.
Long-term effectiveness of sildenafil was assessed in 3 open-label, flexible-dose (25 mg to 100 mg) studies. After 12 months of treatment (3 years in one study) or at the time of discontinuation, patients were asked if they were satisfied with the effect of the medication on erections, and if the treatment improved their ability to engage in sexual activity. Satisfaction and improvement in ability to engage in sexual activity reported in 96% and 99% of patients respectively. Of the 11% of patients who discontinued treatment, 2% discontinued for treatment-related reasons (1.6% for insufficient response, 0.4% for adverse events). These satisfaction rates maintained for 3 years in one study. Over the 3-year period, 32% of patients discontinued treatment. Only 6.7% of discontinuations were treatment related (5.7% for insufficient response, 1% for treatment-related adverse events). The remaining 25.3% of patients discontinued for reasons not related to treatment (eg, non–treatment-related adverse events, lost to follow-up evaluation, withdrawn consent, and protocol violations). Most patients were receiving 100 mg sildenafil doses (88% at 3 years) (Carson et al 2002). Similar efficacy rates for sildenafil were reported in clinical practice setting. An improvement in ability to achieve erections was reported by 68% and 71% of patients with ED (Marks et al 1999; McMahon et al 2000). Success with sildenafil, defined as 75% successful intercourse, was reported by 82% of patients with 77% being successful at every attempt (Guay et al 2001).
However, the case is entirely different for Niacin, as it is not only relatively more convenient, but also it allows men to enjoy sex any time when they want even when they take Niacin for only one time in a day for erectile dysfunction. Niacin formulates in the form of various slow-release pills designed primarily to seep in a slow way within the human bloodstream during the course of one day.

This study was designed to test the hypothesis that hydrochlorothiazide a diuretic used to treat hypertension depletes body zinc and thereby cause sexual dysfunction. Serum zinc and sexual dysfunction were measured in 39 middle aged hypertensive men who had been taking hydrochlorothiazide in average daily doses of between 25 and 50 mg daily for at least six months, and a control group of 27 unmedicated middle aged normotensive men. The medicated group had a higher incidence of sexual dysfunction (56 pc) as compared to 11 pc in the control group. The use of hydrochlorothiazide did affect serum zinc levels significantly in 20 patients. Sexual dysfunction occurred more often in older and overweight patients (p < 0.004). Three of the normotensive men experienced sexual dysfunction probably related to old age. Twenty two of the 39 on hydrochlorothiazide and experiencing sexual dysfunction were divided into two groups of 11 patients. Bloods were taken from the 27 normotensive and 22 hypertensive men receiving hydrochlorothiazide for the analyses of zinc. Subsequently one group of the patients were supplemented with zinc 500 mg daily for 30 days while the other group was supplemented with magnesium chloride 1 g daily for 30 days. The normotensive men were not treated. After 30 days, bloods were again taken from the three groups of analyses for zinc and magnesium. Serum zinc was significantly decreased (p < 0.05) by hydrochlorothiazide and a non significant decrease in serum magnesium (p = ns) was observed. After supplementation with zinc, the serum zinc levels returned to normal only in eight patients. There was improvement in the symptoms of sexual dysfunction in five patients. Two patients gained weight. Hydrochlorothiazide decreased serum zinc levels (p < 0.05) and was unchanged with magnesium supplementation but the serum magnesium returned to normal values. Improvement of symptoms of sexual dysfunction was positive in one patient. This study shows that low serum zinc levels may be associated with sexual dysfunction but the definitive role of zinc in the pathogenesis of sexual dysfunction will remain controversial.
The sunshine vitamin will brighten things up in the bedroom. In a recent study published in the Journal of Sexual Medicine, Italian researchers found that of 143 men with erectile dysfunction, 80% had less-than-optimal levels of D, and the men with severe ED had, on average, a 24% lower level of D than with a milder condition. They theorize that low levels of D damage blood vessels and lead to a shortage of nitric oxide.

Our bodies are designed to be active and in motion. By keeping active and engaging in regular aerobic exercise, you increase the blood flow to your muscles, and your penis along the way. One of the most interesting things about increasing your blood flow is that it becomes a signal to your blood vessels to grow and get wider. It benefits your brain, your heart, and your erection. The principle of "use it or lose it" is the best advise one can follow. In fact, if you don't engage in sexual activity at least once or twice a week, it would be beneficial to masturbate. This not only helps with prostate health, but encourages the blood vessels that contribute to your erection to maintain their patency and flow. 
In addition, statins had a relatively fast effect on the problem of erectile dysfunction as compared to its role in the reduction of cholesterol, which suggest that Niacin drugs were reaching to deal with root inflammation of the mentioned problems significantly. According to the researcher Howard Hermann, Men consuming Niacin scored better on both self-reported tests associated with the function of erectile and the levels of lipids in blood.
Psychological factors can make a big difference with regard to treatment and outcome, and should not be underestimated (the placebo effect is a good example). Brand, size, shape, and colour of a pill can all have a psychological impact on a patient’s confidence in the treatment. There is also documented evidence that a higher dosage can have a positive psychological effect, however side effects are more likely. Studies also suggest men’s mood improves after taking sildenafil.
As we mentioned before, there are a lot of treatment options that you could use to treat a condition as erectile dysfunction. A lot of the men diagnosed with erectile dysfunction decide to try some of the natural remedies before they refer to some of the top men enhancement pills. Exercise is one of the most commonly recommended ways as a natural remedy for erectile dysfunction. We all know that exercising has a lot of different beneficial effects on our bodies so why not use it as a part of the treatment for this condition? 
Besides that, dyslipidemia (and hypercholesterolemia in particular), remain undertreated in many patients diagnosed with coronary artery disease. High triglycerides, a contributor to cardiovascular dysfunction by many but not all studies, are somewhat treatable with fibrates, yet there are significant limitations for their use. Elevated fasting triglyceride levels have been shown to be a strong risk factor for ischemic heart disease, independent of other known risk factors for atherosclerosis.
The results, published earlier this month, show that the 80 men in the study with moderate or severe erectile dysfunction (ED) and high cholesterol reported an improvement in their ability to maintain an erection after supplementing their diet with niacin. The 80 men who took a placebo pill, who also began the study with only mild ED, did not experience a change in their symptoms, the researchers said.

Parameters evaluated in this study are determinants of some important aspects of the male sexual competence. Libido index, intromission and mount latencies are indicators of libido, arousability and motivation. Copulatory efficiency and inter-copulatory intervals are indicators of sexual vigor, while penile thrusting is an indicator of penile erection.[8,11,14,15] Our results showed that the libido index was significantly reduced in the 10 mg/day zinc saulphate treated group. In the same group, majority of the animals (62%) failed to complete their sexual behavioral cycle within the observed period. Though these unsuccessful rats showed the initial steps of the cycle such as licking, physical contacts with the females and few mounts and intromissions, they were inactive at later stages. Therefore a significant reduction of the libido index, number of intromissions, mounts, and ejaculations were observed in the high dose of zinc treated group compared to controls.

Nitric Oxide (NO) is released with sexual stimulation from nerve endings and endothelial cells in the corpus cavernosum of the penis. An enzyme then converts guanosine triphosphate (GTP) into cyclic guanosine monophosphate (cGMP). cGMP causes the smooth muscle of the penis to relax, which causes an inflow of blood which then leads to an erection. cGMP is then hydrolysed back to the inactive GMP by phosphodiesteras type 5 (PDE5).
Test was terminated after 15 minutes of observation or after ejaculation (whichever occurred first). Ejaculatory latencies were taken as 15 minutes when animals showed intromissions but failed to ejaculate during the test period. After analyzing the results, the following tests were performed with the group that indicated significantly positive effects compared to the controls:
Along with promoting overall health, a sufficient daily magnesium intake can help significantly if you take zinc to promote healthy erectile function or to help alleviate ED. Zinc is often recommended as a natural ED remedy, particularly for men who have a zinc deficiency, according to MayoClinic.com. Magnesium helps regulate zinc levels in the body to support healthy erectile function. Herbs, vitamins and minerals, including magnesium, haven’t been widely studied in terms of their true benefits for men with ED or other erectile problems, but maintaining adequate levels of essential vitamins and minerals may help a doctor narrow down the cause of such problems.
SOURCES: John P. Mulhall, MD, associate professor and director of sexual medicine, departments of urology, Weill Medical College of Cornell University and Memorial Sloan-Kettering Cancer Center, New York. Frank Sommer, MD, chief of andrology, department of urology, University of Cologne, Cologne, Germany. American Urological Association's 99th Annual Meeting, San Francisco, May 8-13, 2004.
Cai, T., Verze, P., Massenio, P., Tiscione, D., Malossini, G., Cormio, L. ... Mirone, V. (2016, August 12). Rhodiola rosea, folic acid, zinc and biotin (EndEP®) is able to improve ejaculatory control in patients affected by lifelong premature ejaculation: Results from a phase I II study. Experimental and Therapeutic Medicine, 12(4), 2083-2087. Retrieved from https://www.spandidos-publications.com/10.3892/etm.2016.3595
Three types of medications to treat erectile dysfunction -- sildenafil, vardenafil and tadalafil -- may cause low blood pressure. Niacin, used to treat conditions such as high cholesterol and hardening of the arteries, can also lower your blood pressure. If you take medications to treat male impotence, ask your doctor before combining it with niacin.
But, first for those of you who do not know anything on this topic, let’s define erectile dysfunction. Erectile dysfunction is a condition which characterizes itself with the inability to maintain an erection during sexual intercourse. Luckily, although erectile dysfunction is a common condition, this condition seems to be easily treated. You can choose from the variety of natural remedies, including supplements, which claim to increase your stamina, sexual ability, and muscle mass. This article is dedicated to the importance of exercise as a way to treat erectile dysfunction and highlight the best exercises you could use as a part of the treatment. 
In conceiving the potential solutions to issues around erectile dysfunction, it’s really helpful to understand clearly how an erection is achieved and completed. To achieve an erection, there needs to be some form of stimulation, either from touch or some sort of audiovisual stimuli.  Once the stimulation occurs, chemical messengers are released and blood starts to fill into the penis. In terms of the musculature, the bulbospongiosus and ischiocavernosus muscles need to be relaxed so blood can fill the area completely. Then the bulbospongiosus needs to contract to keep the blood in the penis. The erection ‘completes’ with the rhythmic contraction of the bulbospongiosus muscle.
Bringing this all together, talking to Mr. Jones and those like him about these options takes some time and often requires some trial and error to find what works. At this time, I usually recommend most men to start with Muse and see if they have success with it, and if not they can move on to Caverject (they’re both relatively expensive at about $75 a dose). Some men are fine starting with Caverject right away and find it non-bothersome, but I would say it comes down to personal preference on what side effects are manageable for the patient. I do hope to see some advancements in other medications aside from PDE-5 inhibitors and expansion on the use of topical Alprostadil in the near future, which I feel more men would prefer.
Past research has suggested that living a healthier life full of exercise and a good diet can bring men back to sexual health. But according to researchers at Cedars-Sinai Medical Center in Los Angeles, most of these studies underrepresented African-American men. “This study is the first to link the benefits of exercise in relation to improved erectile and sexual function in a racially diverse group of patients,” said senior author of the study Dr. Adriana Vidal, of Cedars-Sinai Samuel Oschin Comprehensive Cancer Institute and Department of Surgery, in a press release.
The art of acupuncture has become the new treatment for everything from back pain, depression, and even ED. Impotence could be more of a state of mind, and acupuncture may help. Through this alternative therapy, fine needles are placed in various parts of the body to relieve pain or stress. Although there are many mixed studies for acupuncture and ED, many tend to confirm positive results. A 1999 study found acupuncture improved the quality of erection and even restored sexual activity in 39 percent of participants.
×