For many young men, performance anxiety plays a large role in erectile dysfunction. Other factors include money and work problems, as well as relationship issues and even issues about sexual orientation. Undiagnosed depression and post-traumatic stress disorder can cause erectile dysfunction--especially if the PTSD is related to a past sexual experience.
Sildenafil should be taken 1–2 h before intercourse. It is important to tell patients that the drug’s effectiveness requires sexual stimulation. One patient in our clinic recently complained that he had no effect from taking sildenafil. It was later discovered that he took the pill and then sat on his couch and read a book about how to grow tomatoes!
Most men may not openly talk about their erection problems, but erectile dysfunction — when a man cannot achieve or maintain an erection well enough or long enough to have satisfying sex — is very common. According to the National Institutes of Health, 5 percent of 40-year-olds and 15 to 25 percent of 65-years old have ED. But while ED is more likely to occur as a man gets older, it doesn’t come automatically with age.
Chronic and persistent alcohol use is known to induce sexual dysfunction, which leads to marked distress and interpersonal difficulty. This, in turn, is known to worsen the alcohol abuse. Sexual dysfunction in the alcoholic may be due to the depressant effect of alcohol itself, alcohol-related disease or due to a multitude of psychological forces related to the alcohol use. The spectrum of sexual dysfunction encompasses:
Accurate statistics are lacking on how many men are affected by the condition because it is often underreported, but it is estimated that about half of men over 40 in Canada have frequent problems achieving or maintaining an erection. The number of men suffering from erectile dysfunction increases with age, but it is not considered a normal part of aging. The majority of cases can be successfully treated.
And be aware that the vast majority of physical or psychological causes of erectile dysfunction are temporary. They may go away as quickly as they occurred. But if anything is bothering you or your partner, you should seek out confidential, professional advice. There is no point in worrying and not doing anything about it. It may just make the situation worse.
A 2013 study published in The Journal of Sexual Medicine evaluated 439 men for erectile dysfunction and compared ED causes and frequency in men 40 or younger to men over 40. They found that 26 percent of the younger men had ED. Although these men were healthier and had higher levels of testosterone than the older men, they were more likely to be smokers or to have used illicit drugs. In almost half of the younger men with ED, the ED was considered severe.
Sexual dysfunction was rated for the last one year and temporary or situational complaints were ignored. Data regarding the quantity of alcohol usually consumed per day [in standard drinks; where 1 drink = 30 ml. Spirits = 330 ml. Beer = 1/3 sachet of arrack] and duration of dependence, was extracted from the items corresponding to the section on Mental and Behavioural disorders due to use of alcohol [F10.0] in the SCAN and used in the analyses. However, only the presence or absence of tobacco consumption and not a measure of severity was used for analyses. The ratings were sought after two weeks of inpatient stay after the period of detoxification with benzodiazepines.
PDE 5 inhibitors are broken down primarily by enzyme, cytochrome P450enzyme CYP3A4. Medications that decrease or increase the activity of CYP3A4 may affect levels and effectiveness of PDE 5 inhibitors. Such drugs include medications for the treatment of HIV (protease inhibitors) and the antifungal medications ketoconazole and itraconazole. Thus caution is recommended.
Aging, liver and kidney problems, and concurrent use of certain medications (such as erythromycin [an antibiotic] and protease inhibitors for HIV) slows the metabolism (breakdown) of sildenafil. Slowed breakdown allows sildenafil to accumulate in the body and potentially may increase the risk of side effects. Therefore, in men over 65 years of age, in men with significant kidney and liver disease, and in men who also are taking medications called protease inhibitors, the doctor will initiate sildenafil at a lower dose (25 mg) to avoid accumulation of sildenafil in the body. A protease inhibitor ritonavir (Norvir) is especially potent in increasing the accumulation of sildenafil, thus men who are taking Norvir should not take sildenafil doses higher than 25 mg and at a frequency of no greater than once in 48 hours. Other medications that may affect the level of sildenafil include erythromycin and ketoconazole.
An erection involves the brain, nerves, hormones, muscles, and circulatory system. These systems work together to fill the erectile tissue in the penis with blood. A man with erectile dysfunction (ED) has trouble getting or maintaining an erection for sexual intercourse. Some men with ED are completely unable to get an erection. Others have trouble maintaining an erection for more than a short time.
A sexually competent male must have a series of events occur and multiple mechanisms intact for normal erectile function. He must 1) have desire for his sexual partner (libido), 2) be able to divert blood from the iliac artery into the corpora cavernosae to achieve penile tumescence and rigidity (erection) adequate for penetration, 3) discharge sperm and prostatic/seminal fluid through his urethra (ejaculation), and 4) experience a sense of pleasure (orgasm). A man is considered to have ED if he cannot achieve or sustain an erection of sufficient rigidity for sexual intercourse. Most men, at one time or another during their life, experience periodic or isolated sexual failures. However, the term “impotent” is reserved for those men who experience erectile failure during attempted intercourse more than 75% of the time.
It can be embarrassing to talk to your doctor about your sex life, but it's the best way to get treated and get back to being intimate with your partner. Your doctor can pinpoint the source of the problem and may recommend lifestyle interventions like quitting smoking or losing weight. Other treatment options may include ED drugs, hormone treatments, a suction device that helps create an erection, or counseling.
There was a significant reduction in the frequency of sexual intercourse per week over the last five years having decreased from a mean of 4.6 (± 2.6) times per week to 2.2 (± 2.2) times per week currently. Forty-eight per cent of the sample had more than one sexual dysfunction. Of the 24 subjects with only one complaint, the most frequent complaint was that of premature ejaculation in 18 subjects.
Erectile dysfunction can be embarrassing and difficult to talk about for some men. Many men may feel like they need to hide their diagnosis from their partner. "Failure to communicate openly about erectile dysfunction can result in both partners drawing away from the relationship," warns Feloney. Remember that your partner is also affected by your problem; being open and honest is the best way to decrease fear and anxiety. Discuss options for achieving sexual satisfaction together, and be positive — most erectile dysfunction problems can be treated.
The link between chronic disease and ED is most striking for diabetes. Men who have diabetes are two to three times more likely to have erectile dysfunction than men who do not have diabetes. Among men with erectile dysfunction, those with diabetes may experience the problem as much as 10 to 15 years earlier than men without diabetes. Yet evidence shows that good blood sugar control can minimize this risk. Other conditions that may cause ED include cardiovascular disease, atherosclerosis (hardening of the arteries), kidney disease, and multiple sclerosis. These illnesses can impair blood flow or nerve impulses throughout the body.
Though psychological causes of erectile dysfunction may be more complex than medical causes, they are still treatable. You should know, however, that resolving psychological impotence may not be quite as simple as taking Viagra (sildenafil citrate). ED drugs are designed to sidestep the physiological causes for ED such as low blood pressure or vascular damage – they won’t help you with issues of anxiety, stress, or low self-esteem. The best treatment for psychological ED will address the problem at its root.
Erectile dysfunction related to medical/physical causes is often treatable but less commonly curable. In some cases of medication-induced erectile dysfunction, changes in medication may improve erections. Similarly, in men with a history of arterial trauma, surgical intervention can restore erectile dysfunction. In most cases of ED associated with a medical condition, treatment allows one to have an erection "on demand" or with the aid of medications/device (but not spontaneous).
Another common reason for failures of oral therapy is the absence of sexual or genital stimulation prior to attempting sexual intercourse. These medicines facilitate an erection by increasing blood flow to the penis, but they do not act as an aphrodisiac or as an initiator of the erection. A man who is not “in the mood” or does not have adequate physical stimulation will not respond with an erection.
If you are experiencing ED, you should talk with your doctor about your potential risk for cardiovascular disease. And if you’re already taking certain medications such as nitrites for your heart or alpha-blockers to manage blood pressure, your doctor will discuss whether ED medications are right for you or whether other options may be more appropriate.
Erectile dysfunction (ED) generally affects men older than 65, but younger men can get it too. If it happens at a younger age, ED may be a warning sign of another health issue. If you have no obvious risk factors and no other health problems, like diabetes, your doctor will run laboratory tests and may order heart tests. The same process that affects the arteries in the penis affects the ones in your heart, too. If something is wrong and it is not diagnosed and treated, you have a fairly high risk over the next four to five years of having some type of cardiac event.
Researchers have found that one particular simple sugar, present in increased levels in diabetics, interferes with the chain of events needed to achieve and maintain erection and can lead to permanent penile impairment over time. The results, which have implications for new types of erectile dysfunction treatments targeting this mechanism of erection, are described in the August 16 issue of the Proceedings of the National Academy of Sciences.
Impotence, also known as erectile dysfunction or ED, is a condition in which a man is unable to get or hold an erection long enough to have a satisfactory sex life. Impotence is a common problem, affecting up to half of Australian men between the ages of 40 and 70 years. The risk of developing erectile dysfunction increases as you get older.In the past, doctors considered impotence to be a mainly psychological problem, caused by performance anxiety or stress. Now, doctors know that many cases of impotence have a physical cause, which usually can be treated. Often, a combination of physical and psychological factors contributes to erectile dysfunction.Physical causes of impotencePhysical causes of impotence can include:problems with blood to flow into and out of the penis;damage to the nerves that send signals from the body’s central nervous system to the penis; and, more rarely,a deficiency in testosterone or other hormones.Some medicines can contribute to impotence, as can some types of surgery and radiotherapy treatments.Blocked blood vessels to the penisA very common cause of impotence is when blood flow into the penis is reduced. This can be due to atherosclerosis, also known as hardening of the arteries. In atherosclerosis, the arteries are clogged and narrowed, resulting in reduced blood flow.Risk factors for atherosclerosis include:high cholesterol;high blood pressure;obesity;sleep apnoea;diabetes; andsmoking.If your erection problems are caused by atherosclerosis, there is a chance that the arteries in other parts of your body (e.g. the coronary arteries that supply your heart) are also affected by atherosclerosis. In fact, erection problems may be the first sign that you are at risk of coronary heart disease.Because the arteries to the penis are narrower than those to the heart, you may develop symptoms of erectile dysfunction before you experience any symptoms of heart disease, such as angina. So seeing your doctor about erection problems may be important for your overall physical health.Impotence can also be caused by a blood clot that prevents enough blood from flowing into the penis to cause an erection.Venous leakageIn some men, blood can flow in to the penis easily, but the problem is that it leaks out again, so an erection cannot be sustained. This is called venous leakage. Doctors aren’t certain of the cause of venous leakage, but they can perform surgery to help repair it.Medicines that can cause impotenceMany medicines can cause erection problems as a side effect, including:diuretics (sometimes known as ‘water tablets’ - often used for high blood pressure);high blood pressure medications;cholesterol-lowering medicines (including statins);some types of antipsychotics;antidepressants;cancer treatments;some medicines used to treat heartburn and stomach ulcers;antihistamines;some pain medicines; andcertain epilepsy medications.If you experience impotence after starting a new medication, tell your doctor, who may be able to prescribe a different medicine for you. Don’t stop taking a medicine without first consulting your doctor. You should also tell your doctor about any over-the-counter medicines or complementary remedies you may be taking.The following table contains a list of specific medicines that may cause or contribute to erectile dysfunction. This list may not cover all types of medicines that can cause erectile dysfunction, so always ask your doctor if you are in doubt. Also, for some of these medicines ED is a very rare side effect. Most men taking these medicines do not experience erectile dysfunction.Medicines that may cause erectile dysfunctionType of medicineExamplesACE inhibitorscaptopril (Capoten), enalapril (Renitec), perindopril (Perindo), ramipril (Tritace), and othersAntidepressantsamitriptyline (Endep), clomipramine (Anafranil), desvenlafaxine (Pristiq), fluoxetine (Prozac), paroxetine (Aropax), sertraline (Zoloft), venlafaxine (Altven, Efexor), and othersAnti-epilepticsclonazepam (Rivotril), pregabalin (Lyrica)Antifungalsitraconazole (Sporanox)Anti-ulcer drugscimetidine (Magicul), nizatidine (Tazac), ranitidine (Zantac), and othersBeta-blockerspropranolol (Inderal), metoprolol (Betaloc, Lopresor), and othersOther blood pressure-lowering medicinesclonidine (Catapres), lercanidipine/enalapril (Zan-Extra), losartan (Cozaar), perindopril/amlodipine (Coveram), olmesartan/amlodipine (Sevikar), telmisartan/amlodipine (Twynsta), valsartan/hydrochlorothiazide (Co-Diovan)Calcium-channel blockersdiltiazem (Cardizem), felodipine (Plendil), nifedipine (Adalat)Cholesterol-lowering drugsatorvastatin (Lipitor), ezetimibe/simvastatin (Vytorin), fluvastatin (Lescol, Vastin), gemfibrozil (Ausgem), pravastatin (Pravachol), simvastatin (APO-simvastatin, Lipex, Zocor), and othersDiuretics ('water tablets')bumetanide (Burinex), chlorthalidone (Hygroton), spironolactone (Aldactone), and othersSchizophrenia drugsamisulpride (Solian, Sulprix), haloperidol (Haldol, Serenace), olanzapine (Lanzek, Ozin, Zypine, Zyprexa), paliperidone (Invega), risperidone (Rispa, Risperdal), ziprasidone (Zeldox)Combination cholesterol-lowering and anti-hypertensiveamlodipine/atorvastatin (Caduet, Cadatin)Pain medicinesfentanyl (Denpax, Durogesic), hydromorphone (Jurnista), morphine (Momex SR, MS Contin), oxycodone (OxyContin, OxyNorm, Targin), tramadolMiscellaneousoestrogens, antiandrogens, anticancer drugs and some chemotherapy treatments, baclofen (Clofen, Lioresal); cyproterone (Androcur, Cyprohexal, Cyprostat), degarelix (Firmagon), etoricoxib (Arcoxia), finasteride (Proscar and Propecia), flutamide (Flutamin), rotigotine (Neupro), triptorelin (Diphereline)*The names in brackets are just some examples of the trade names each specific medicine is marketed under in Australia. The medicine may also be known by other trade names.Diabetes and erectile dysfunctionMen who have diabetes have a higher risk of developing impotence than other men. Diabetes contributes to impotence because it can damage blood vessels and cause a type of nerve damage known as peripheral neuropathy.Hormones and impotenceLow levels of the male hormone, testosterone, are more commonly linked to a lowered sex drive, rather than impotence itself. Only a small percentage of cases of impotence are caused by hormone deficiency.Low testosterone levels may be the result of a condition called hypogonadism, in which the testicles don’t produce enough testosterone. More rarely, low testosterone can be caused by the pituitary (a small gland at the base of the brain) not secreting sufficient hormones to stimulate the testes to produce testosterone. The pituitary is also sometimes affected by small benign (non-cancerous) tumours that secrete prolactin, another hormone that can cause impotence.Mildly decreased levels of testosterone are often not due to specific testicular or pituitary problems, but rather stress or depression. In this situation, testosterone replacement is rarely of any benefit.Other hormone problems, including thyroid disease, can also cause impotence.Prostate cancer and erectile dysfunctionThe advanced stages of prostate cancer can affect the nerves and arteries that are vital for an erection.Radiation treatment for prostate cancer can harm the erectile tissues of the penis, and prostate cancer surgery can cause nerve or artery damage to the penis.Treatment for advanced prostate cancer often includes medicines that counteract testosterone, and commonly cause erectile dysfunction as well as loss of sexual interest.Peyronie’s diseasePeyronie’s disease is an uncommon condition that affects a man’s sex life because his penis curves abnormally and causes pain when he has an erection. He might also be unable to have a hard erection. The curvature of the penis is caused by a scar, called a plaque, that forms in the penis.Other physical causes of impotenceSeveral other factors and conditions can contribute to erectile dysfunction, including the following.Depression. Many men find that when they’re suffering from depression, they lose interest in sex and can’t get or keep an erection. Asking your doctor for treatments for depression may help alleviate your erection problems as well.Smoking contributes to vascular disease (disease of the blood vessels), so it can contribute to erectile dysfunction by affecting blood flow to the penis. Giving up smoking often has a beneficial effect on erectile function.Excessive alcohol use. Alcoholism can cause permanent nerve damage, resulting in impotence. This nerve damage is called peripheral neuropathy. Long-term alcohol use can impair the liver’s ability to function, resulting in a hormone imbalance in which a man has too much of the female sex hormone, oestrogen. On a day-to-day level, alcohol dulls the central nervous system, adversely affecting sexual response.Illicit drug use. Illicit drugs such as marijuana, cocaine, heroin, barbiturates, and amphetamines act on the central nervous system, impairing the body’s ability to respond sexually.Certain exercises. Nerve and artery damage can be caused by prolonged cycling, rodeo riding, or use of a rowing machine, resulting in the inability to get an erection. Often, minimising the use of hard bicycle seats and exercise machine seats, as well as correct positioning of the seat, will help restore sexual function.Surgery to organs near the nerve pathways of the penis, such as the bladder, rectum and prostate, can cause nerve or artery damage to the penis, resulting in the inability to have an erection.Injuries. Impotence can be caused by spinal cord injury; injury to your sex organs; or a pelvic fracture, which can cause damage to the nerves of the penis, or damage the blood vessels, resulting in reduced blood flow to the penis.Conditions affecting the nervous system. Multiple sclerosis (MS) and other degenerative diseases of the nervous system, such as Parkinson’s disease, can damage the nerves involved in erections.Psychological causes of impotenceMost cases of impotence have physical causes, but, in some men, psychological factors are the main contributors to impotence.Impotence that’s triggered by psychological factors is more common in men who are sexually inexperienced. Psychological erectile dysfunction may only occur when you’re with just one particular person. You’re also more likely to have morning erections, and be able to have an erection when you masturbate, than men whose impotence has a physical cause.Here are some psychological factors that can have an impact on your erections.Stress and anxietyWhen you’re stressed and focusing on other issues apart from sex, you might find that you don’t want to have sex as often and there might be a drop in your ability to perform when you do try. You might find that tackling the source of your stress can have benefits in the bedroom as well.Fear of failureAnxiety about your sexual prowess (commonly called performance anxiety) can, in itself, contribute to failure. By putting pressure on yourself, you become too anxious to get an adequate erection.Most men experience isolated episodes of erectile failure. Even when the transient physical cause has passed, anxiety that it may recur is sufficient to prevent erection. Anxiety, whether about something specifically sexual or part of a wider anxiety syndrome, is never helpful to good sexual function.Problems with your relationship and impotenceImpotence may be a manifestation of a poor relationship, or a problematic time in a relationship. Sexual boredom, tension or anger among partners, and lack of intimacy and communication are all possible triggers of erectile dysfunction. In these cases, seeing a counsellor may help.It’s worth remembering that impotence is a complex medical condition, which may have more than one cause. For example, if impotence is the result of a side effect of medicine or an underlying disease, the anxiety caused by lack of performance may perpetuate the erectile dysfunction even after the physical cause has been dealt with.Almost any chronic (ongoing) physical or mental health disorder, including those with no direct effect on penile nerves or blood supply, can have a powerful effect on sexuality, sexual self-image and erectile function.If you’re worried about your sexual response or the quality of your erections, don’t be afraid to talk to your doctor, who has access to treatments that can help. Last Reviewed: 16 December 2016
And yes, this may all seem easier said than done, when it comes to a condition that is more often than not the subject of jokes—or the cause of embarrassment. Talking to your doctor is the first step in dealing with this complication, which can wreak havoc on your quality of life. Keeping diabetes in check and enjoying a healthy lifestyle can make a huge difference in reducing ED risk, but if that isn't enough, there are successful treatments. Sex brings a range of physical and psychological benefits, whether you have diabetes or not. Preventing or reversing ED isn't just about sex—it's a step toward better health and a more satisfying life.
Malleable implants usually consist of paired rods, inserted surgically into each of the corpora cavernosa. The rods are stiff, and to have an erection, one bends them up and then when finished with intercourse one bends them down. They do not change in length or width. The malleable implants are the least mechanical and thus have the lowest risk of malfunction. However, also have the least "normal appearance."
With all of that said, it should be clear that we lack evidence from nationally representative sex surveys to support claims about a massive increase in erectile difficulties among young men. It may be that reports of mild problems are increasing in this group (we need more data to know), but even if this is true, the data don’t suggest anything along the lines of, say, a 1000% increase.
The 100 male subjects had a mean age of 37.09 (± 6.74) years. The quantity of alcohol consumed per day was 20.6 (± 9.07) standard drinks [8-42 drinks per day]. The mean duration of alcohol dependence was 8.59 (± 6.64) years. 87% of the subjects also used tobacco [chewing and / or smoking]. Seventy-two of the 100 subjects reported one or more sexual dysfunction. Four (4%) subjects reported aversion to sex to the extent that they had not attempted sexual intercourse in the last one year. Consequently, the prevalence of sexual dysfunction other than aversion to sex and low sexual desire, had to be calculated after excluding these 4 subjects.
Describing the epidemiology of ED in young men requires, first of all, defining what it is meant by youth. While the definition of old age is matter of discussion and a precise threshold does not exist, the most shared definition in Western Countries is age above 65 years (http://www.who.int/healthinfo/survey/ageingdefnolder/en/). Considering that most of the epidemiological studies on general populations aimed at studying health changes with age, enrol men more than 40 years, it seems reasonable to define young age as below 40 years. Epidemiological studies on erectile function, which considered the prevalence of ED according to age bands, consistently find a significant increase with ageing. Advancing age remains one of the most important unmodifiable risk factors for ED (1). Studies on ED mostly involve middle-aged and older men, with younger aged men often overlooked. In a multi-centre worldwide study, involving more than 27,000 men from eight countries, Rosen et al. (2) showed an ED prevalence of 8% among men aged 20–29 years and 11% among those aged 30–39 years. Most of the studies involving younger men and conducting age-stratified analyses have been performed in Europe, where the prevalence of ED in men younger than 40 years ranges between 1% to 10% (3-10). The prevalence reported in these studies is highly variable due to different methodologies used in defining ED, population accrual, acquisition of data and choice of tools for investigating erectile function. A smaller number of studies on this topic have been conducted outside Europe. Both in Australia (11,12) and in America (13-15), the available information suggests a similar range of prevalence of ED among young subjects, with the same extent of variability among studies. According to these data, ED in younger men, although still not extensively studied and largely overlooked by the scientific community, is a quite common condition. In a recent study conducted in a Urology Clinic, it has been observed that one out of four men seeking medical care for ED was younger than 40 years (16). In our Sexual Medicine and Andrology Unit, established in an Endocrinology setting at the University of Florence, medical consultations for younger men are infrequent, with a prevalence of men aged less than 40 years at only 14.1% of more than 3,000 men complaining of ED. However, when considering the new referrals to our Unit during the last 6 years, we can notice a progressive increase in prevalence of men below 40 years seeking medical care for ED (Figure 1). According to these data, ED is becoming a common concern even among young men, and the clinical practitioner in sexual medicine must become aware of how to manage the problem and avoid underestimating a symptom. The identification of ED in a young man may potentially provide a great deal of useful information that can help improve their quality and even length of life.
Alcohol is a nervous system depressant and can actually block nerve impulses and messages between the brain and body. This is why drunk people often experience slurred speech, emotional outbursts and difficulty walking. But even small amounts of alcohol will affect the nervous system, causing slower reflexes and fuzzy thinking. Moderate drinking—one to two drinks a day, for men—of any type of alcohol, may actually improve cardiovascular health, according to the Mayo Clinic. Excessive alcohol use and alcohol abuse, can cause scarring of the liver, high blood pressure and an increased risk of some cancers.
Another oral treatment that has been used with very little success is yohimbine (Yocon, Yohimex). This is an alpha 2 adrenergic receptor blocker that increases cholinergic and decreases adrenergic tone. It stimulates the mid-brain and increases libido. Optimal results occur when used in men with psychogenic ED. Side effects include anxiety and insomnia.
In the evaluation of physical causes of ED, the health care provider is assessing for conditions that may affect the nerves, arteries, veins, and functional anatomy of the penis (for example, the tunica albuginea, the tissue surround the corpora). In determining a physical (or organic) cause, your health care provider will first rule out certain medical conditions, such as high blood pressure, high cholesterol, heart and vascular disease, low male hormone level, prostate cancer, and diabetes, which are associated with erectile dysfunction. Medical/surgical treatment of these conditions may also cause ED. In addition to these health conditions, certain systemic digestive (gastrointestinal) and respiratory diseases are known to result in erectile dysfunction:
But when you or your partner notice a change in your erections, it’s important to talk to a doctor to discover the underlying cause of your ED. Erectile dysfunction is often an early warning sign of serious health conditions, like heart disease. High blood pressure, diabetes, low testosterone, and high cholesterol are all causes of ED in otherwise healthy men. Don’t assume that it’ll pass—especially if symptoms get worse over time.
The pills currently available by prescription all work the same way—by boosting the effects of NO in the penis. They typically have mild side effects. Some work faster but others last longer. There is no “best” drug, as some will work better for some men than others, but they all are about equally effective at increasing the hardness of an erection. Pills don’t work for everyone. The main risk is using them with nitroglycerine which can be fatal and must absolutely be avoided.