It is important for clinicians prescribing these drugs to make the patient aware of the action of the drugs especially the fact that they do not result in an immediate erection, and that they do not cause an erection without sexual stimulation. There is frequently a great expectation when men begin using these drugs and it is wise to temper their enthusiasm and explain they do not work immediately, and may not work every time, but also let the patient know that if these drugs do not work, there are other options.
Among the phenomena in the ageing man are a decrease in erectile function and testosterone levels. Add to these, increased risk for CVD, muscle wasting, decrease in bone density and libido, with all of these factors having an interplay with testosterone metabolism.33 Androgens play a key role in maintaining erectile function through four main mechanisms. Androgen deprivation has been shown to result in impairment of NO synthase release, altered PDE5 expression and activity, impaired cavernosal nerve function, and contribution to veno-occlusive disease in the penis.34 The role of testosterone replacement therapy (TRT) as a potential to improve erectile function in the man with ED remains an issue for patient and physicians who are comfortable treating androgen deficiency which include primary care physicians and specialists. Androgens are known to have a significant impact on the function of the smooth musculature within the corpus spongiosum.35
The number of intromissions in the 5 mg/day group was comparable with controls. On the other hand number of penile thrusting was significantly increased with the same dose. These are indications of unimpaired erectile function due to supplemented zinc. Our observations also confirmed the lack of aberrant sexual behavior which is indicative of uninhibited penile tactile sensations.[15] Sexual behavior may also be changed with motor weaknesses and incoordination.[12] Supplementation with zinc did not impair muscle strength or coordination when tested with bar and bridge tests, indicating that prolongation of ejaculation was not mediated through these mechanisms.
Consider the case of Mr. Jones, a new patient I was helping in an ambulatory cardiac clinic. Most of my patients are on multiple medications for their heart conditions and other complicated issues, so I often review their medications to make sure everything is all right. This includes screening labs, checking vitals, reviewing past reports, and conducting drug interaction checks related to therapy. If there are any concerns, I’ll meet with the patient and make recommendations to the healthcare team.
Handful of things can cause erectile dysfunction, but healthy vitamins supply for erection will make your sex life very soothing and romantic. Healthy blood vessels are necessary for good circulation, as blood is pumped around the body to carry nutrients to the cells. Vitamins can help the blood vessels to dilate or open so blood can fill the manhood. 
A variety of personal habits and lifestyle choices have been linked to ED. In some ways, this is a good thing, since habits can be broken and choices reconsidered. What's more, many of the lifestyle factors that contribute to sexual problems are ones that affect overall health and well-being, both physical and mental. Addressing these factors, therefore, can have benefits beyond improving erectile dysfunction.
Erectile dysfunction is the inability for men to initiate and maintain an erection [1]. Multiple co-morbidities can predispose patients to get erectile dysfunction. Some of the more common chronic conditions would be diseases like hypertension, cardiovascular disease, diabetes mellitus and various stress disorders like anxiety and depression [2]. In medicine, two types of therapy are typically used to treat this erectile dysfunction. Physicians could choose to target the chronic conditions and improve therapies to reduce secondary effects. Controlling blood sugar, blood pressure or helping patients manage stress are all potential avenues to lead to symptom resolution [3]. On the other hand, patients could also choose a quick-acting solution like taking a pharmaceutical supplement to help synthesize nitric oxide (NO) [4]. This compound is imperative in dilating blood vessels to allow blood to collect in the penis to sustain erections. The most common drug on the market for this goes by the trademark Viagra [5]. Unfortunately, this drug is not for everyone, and it has the potential to interfere with many other medications that a patient may already be taking. Some alternative options come by way of natural supplements for erectile dysfunction. Some of the more successful vitamins and dietary supplements for ED we covered included horny goat weed and how it can treat erectile dysfunction or how vitamin D can treat erectile dysfunction. Nevertheless, we have also found that some compounds are untested and potentially dangerous, so it is important to avoid them at all costs. Herbal Viagra can be one of these potentially dangerous remedies for erectile dysfunction. In this article, we will focus on another supplement for erectile dysfunction that has been linked to being a potential treatment for erectile dysfunction: zinc. The question is: do zinc supplements for erectile dysfunction work?  

MEDLINE is the U.S. National Library of Medicine's (NLM) premier bibliographic database that contains over 18 million references to journal articles in life sciences with a concentration on biomedicine. A distinctive feature of MEDLINE is that the records are indexed with NLM Medical Subject Headings (MeSH).The great majority of journals are selected for MEDLINE based on the recommendation of the Literature Selection Technical Review Committee (LSTRC), a National Institute of Health (NIH)-chartered advisory committee of external experts analogous to the committees that review NIH grant applications. MEDLINE is the primary component of PubMed, part of the entry series of databases provided by the NLM National Center for Biotechnology Information (NCBI). MEDLINE may also be searched via the NLM Gateway (23).

The nitric oxide stimulates an enzyme that produces something called a messenger cyclic guanosine monophosphate (cGMP). The cGMP relaxes the smooth muscle cells. One result of this is that the arteries in your penis dilate and the blood can flow into your penis more easily. Another result is that the erectile tissue itself fills with blood. Both of these process result in an erection. Viagra works by maintaining the level of cGMP in the smooth muscle cells.
The active ingredient wogonin in the traditional Chinese herb Scutellaria baicalensis Georgi (commonly known as Chinese skullcap or Baikal skullcap) has been shown to inhibit ovarian cancer cells, according to oncology researchers in China. Although further investigation is needed, the researchers found that wogonin not only induces cancer cell apoptosis, but fights cancer cells through other mechanisms as well. To find out how, read about it here.
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).
Experiencing ED can also be a reason to try not penetrative sex.  Try planning a sex session with your partner hat isn't focused on your erection at all.  Things like kissing, licking, sucking, foreplay and teasing all are super stimulating and don't focus on penetration.  Feel free to bring each other to orgasm using these ideas and see if you are able to relax and enjoy the experience.  Many men feel like failures when their erections become unreliable.  Having a few successful sexual sessions that lead to orgasm without penetration can put the fun back into having sex.  Many couples find success using this technique and begin to reengage sexually instead of avoiding being sexual for fear of failure.
Taking large daily doses of zinc, for a short-term period of time, may be of benefit for men with certain health conditions. According to MayoClinic.com, taking 4.5 to 24 milligrams of zinc in lozenge form every 1 to 2 hours may help reduce symptoms of the common cold. Other high dosages of zinc used in research studies include 12 to 150 milligrams per day to improve immune function in elderly men, 66 milligrams of zinc to increase sperm counts in subfertile men and 220 milligrams of zinc daily for sexual dysfunction in men, reports MayoClinic.com. However, don’t take these high doses of zinc unless supervised by a medical professional, and avoid taking them longer than your doctor recommends.
Erectile dysfunction (ED) is a highly prevalent disease associated with aging as well as with several risk factors including hypertension, heart disease, obesity, dyslipidemia, diabetes, hypogonadism, drugs-related, and pelvic surgery. Many of these factors are components of the metabolic syndrome, a multiplex risk factor for cardiovascular disease (CVD). ED shares common risk factors with CVD. Endothelial dysfunction seems to be the early underlying pathophysiology across both conditions. The efficacy, tolerability and cardiovascular safety of sildenafil has been evaluated in numerous large, randomized, double-blind, placebo-controlled clinical studies in the broad population of men with ED including men with several co-morbid conditions. Sildenafil is effective in several specific patient populations including the difficult-to-treat subpopulations such as diabetes mellitus and after radical prostatectomy. It is associated with rapid onset of action – within 14 minutes for some men – and an extended duration of action for up to 12 hours. Sildenafil improves quality of life and satisfaction for treated men and is well tolerated with a favorable safety profile. New data suggest that sildenafil has beneficial effects in several chronic conditions. It has been approved for the treatment of idiopathic pulmonary hypertension. Numerous articles have suggested that it improves endothelial function and a possible role on premature ejaculation or treatment of lower urinary tract symptoms has been suggested.
A drug called Alprostadil, either alone or sometimes in conjunction with others such as papaverine and/or phentolamine, can be injected directly into the penis to dilate the arteries, experts say. The drug produces an erection in about 10 minutes that can last up to an hour. But there are several disadvantages, says Teresa Beam, MD, a urologist with the Grey Clinic. Some patients are averse to using a needle, which is why many men abandon the therapy. Those who give it a try may experience pain at the injection site or priapism (a painful erection lasting too long).

Just because a product claims to be natural doesn't mean it's safe. Many herbal remedies and dietary supplements can cause side effects and dangerous interactions when taken with certain medications. Talk to your doctor before you try an alternative treatment for erectile dysfunction — especially if you're taking medications or you have a chronic health problem such as heart disease or diabetes.
General health. If you have liver or kidney problems, Viagra’s effects could last for longer, although it might not be safe to take Viagra with these conditions. The reason it lasts longer is because the tablet will take longer to be broken down by your body, this means there is a bigger risk of having more serious side effects. You must always mention these conditions during a doctor assessment for Viagra treatment
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Consider the case of Mr. Jones, a new patient I was helping in an ambulatory cardiac clinic. Most of my patients are on multiple medications for their heart conditions and other complicated issues, so I often review their medications to make sure everything is all right. This includes screening labs, checking vitals, reviewing past reports, and conducting drug interaction checks related to therapy. If there are any concerns, I’ll meet with the patient and make recommendations to the healthcare team.
Reduction of the libido index was the major disadvantage that we observed with zinc supplementation. Substances that affect libido usually act centrally and may reduce desire by causing sedation or hormonal disturbances.[17] The role of elevated levels of PRL in serum as an inhibitor of sexual drive and gonadal function is well established.[18] This reduction of sex drive may occur through the modification of activity of dopaminergic neurons in the CNS that are regarded as controlling sexual motivation and function.[19] Our study demonstrated a significant increase of serum PRL level (2.9 to 7.22 ng/dl) within two weeks of supplementation of zinc (5 mg/day). This is a possible explanation for the reduced libido with increasing doses of zinc observed in this study.
After proper counseling and instructions were given, the patient is encouraged for a re-trial of the oral drug for at least 4 attempts for intercourse with the new instructions on administration, as a recent study revealed inappropriate intake of sildenafil in 56% of treatment failures (Hatzichristou et al 2005). After adequate instructions on the proper use of sildenafil, one third of the initially non-responders to sildenafil converted to responders. The most easily reversible factor for treatment failure was the administration of sildenafil just before initiation of sexual activity followed by absence of sexual desire on sildenafil uptake and use of the drug with a full stomach. In this study, 12% of sildenafil failures were not aware that sexual stimulation was mandatory to achieve an erection, but 50% of them converted to responders when they were explained that sildenafil does not possess aphrodisiac properties. Additionally, 63.6% of the patients who initially used the drug just before the initiation of sexual intercourse and 34.4% of those who took sildenafil with a full stomach responded to sildenafil with appropriate timing of administration.
Men can judge themselves pretty harshly when it comes to their performance in between the sheets. The unsettling fear of not being able to rise to the occasion becomes a reccurring nightmare for men that is often equated with failure, loss of dignity, and masculinity. If you suffer from erectile dysfunction (ED), don’t be so hard on yourself, since impotence can almost always be improved with treatment, without having to rely on Viagra or other medications. Whether you suffer from ED, or hope to prevent the condition, here are six tips to overcome impotence without the side effects of the little blue pill.
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