Erectile dysfunction (ED) is defined as the “inability to reach and maintain erection during the intercourse” (1) leading to the victim’s experience of inadequate libido, inefficient orgasm and retarded or premature ejaculation. In Recent times, ED has been labeled as the most common sexual problem among pleasure-seeking males and a complaint of all men irrespective of their age, race and culture but age is the most important risk factor for ED (2). It is reported that nearly 100 million people around the world are living with erectile dysfunction. Yet, only 10% of these 100 million, i.e., 10 million are opting for treatment, despite enormous advancements and treatment facilities in all parts of the world (2). To cite a few countries, in China and Korea only 9% and 30% males voluntarily admit to having ED (2) and in most of the other countries in Asia, it is still considered very sensitive with considerable social stigma and secretly will resort to herbal remedies and tonics before seeking conventional medical help.
The neurovascular mechanism of erection is complex and involves multiple factors including hormones, neurotransmitters, elements of the autonomic nervous system (sympathetic and parasympathetic) and vasodilators such as NO. The common causes of ED include psychogenic disturbance with failure to relax cavernous smooth muscle, arterial insufficiency as a result of atheromatous disease, damage to the parasympathetic nervous system, spinal cord injury, diabetes or following pelvic surgery such as radical prostatectomy, radical cystectomy or bowel resection [4]. It is important to note that cavernous nerves are unique in that although they belong to the autonomic nerves system they do not release either acetylcholine (Ach) or norepinephrine; however, they release NO in the penis. NO relaxes the smooth muscle of the corpora cavernosa via cyclic GMP (cGMP), allowing expansion of the cavernosal lacunar spaces, blood flow and erection. Thus, NO is not a direct dilator of the smooth muscle of cavernosal bodies, but it is an important mediator in this process. Erectile function may also be adversely affected by cigarette smoking, excess alcohol consumption, obesity and systemic diseases such as mononucleosis, hepatitis, HIV and cancer. Some men are prone to develop an erection that fails to subside after ejaculation (ie, priapism). The condition is associated with sickle-cell disease and leukemia, or may be a result of intracavernosal injection of drugs such as prostaglandin E1 [4]. Peyronie’s disease causes a physical bend in the erect penis and also contributes to ED.
Prescription drugs called “oral phosphodiesterase-5 (PDE5) inhibitors” are considered the “first-line non-invasive treatment” options for patients with ED. These include the drugs that go by brand names: Sildenafil, Vardenafil or Tadalafil. They work by helping the smooth muscle cells lining the blood vessels that supply the penis with blood to work properly. This allows a man to maintain an erection more easily.
Some studies carried in and outside Uganda show that some of these plants listed in the management of sexual impotence and ED may be potent. Some of these medicinal plants are regarded as traditionally aphrodisiacs, implying that they have ability to increase sexual desires. For instance, Cola acuminata fruits are widely used herbal remedies in ED and are harvested from the forests of Democratic Republic of Congo. The Cola acuminata fruits contain about 2% catechine-coffeine (Colanine)7. The roasted seeds in Europe are used as strong stimulant, in addition to the treatment of migraine, neuralgia, diarrhoea and stimulant or cardiotonic, loss of appetite, antidepressant and melancholy (severe form of depression)7. Coffee is drunk for certain migraine, nausea, resuscitation and diuretic7. Coffee is a famous stimulant used world over as a beverage. However, the wild coffee species are more popular in treating ED and are believed to contain more alkaloids (caffeine). Coffee is further reported to be a nervous system stimulant (Pampalona-Roger, 2000). Cannabis sativa (Marijuana) is smoked by mentally sick and impoverished men7. C. sativa is like morphine, it is an opioid analgesics. Allium sativum (garlic) is used in treatment of diabetes, high blood pressure, prevention of arteriosclerosis (hardening of the arteries and is one of the causes of ED)7. Garlic reduces blood sugar levels and blood cholesterol levels which are the direct causes of ED if not checked. The Zingiber officinalis (ginger) volatile oils from the rhizome are used for stimulating the nerves and making then sensitive7. Capsicum frutescens in many African cultures is a known powerful stimulant and carminative24. Capsicum frutescens (chilli) contains enzyme capsaicine that helps in blood clotting (fibrinolytic) and people who consume C. frutescens seldom suffer from heart attack. In addition, the pharmacological tests showed that the capsaicin chemical compound from Capsicum frutescens acted like powerful stimulant of the receptors participating in circulatory and respiratory reflexes24.
The key respondents were mainly old men, male traditional healers, traditional birth attendants and young women and all in total about 160 traditional healers were interviewed. To document male related ailments men are particularly more knowledgeable and most men share their problems with men. In addition, the old men and healers are the ones in charge of administering these herbal remedies. Young women through the informal discussions, interviews and market surveys are particularly more dynamic in the use of herbs for themselves, husbands and children besides being the most active reproductive age group. The medical ethnobotanical data collected has been analysed, medicinal plants from the study areas have been listed and methods of administering the herbal drugs were also documented. In checking for the proper updated naming, spellings and authors of the medicinal plants, besides using voucher specimens in Makerere University Herbarium, several reference books were used1,3,9,15,16,20,22,27.

Currently, there are four orally active drugs are available to treat ED. These include: sildenafil citrate (Viagra [Pfizer, USA]), vardenafil hydrochloride (Levitra [Bayer, Germany]), tadalafil (Cialis [Eli Lilly, USA]) and avanafil (Stendra, Spedra [Vivus Inc, USA]). These drugs inhibit the enzyme phosphodiesterase type 5 (PDE-5), which is responsible for the hydrolysis of cGMP. PDE-5 inhibitors and cGMP act as effectors of dilation of smooth muscle of cavernosal bodies. PDE-5 inhibitors are contraindicated in patients taking any kind of nitrate therapy for angina, and may not be appropriate for men with certain health conditions, such as severe heart disease, heart failure, history of stroke or heart attack, uncontrolled high blood pressure or diabetes, and patients with pigmental retinopathy. PDE-5 inhibitors are less effective in men with diabetes and men who have been treated for prostate cancer. PDE-5 inhibitors are also not effective in men with retinitis pigmentosa, a genetic disease involving PDE-5 deficiency. The common side effects of PDE-5 inhibitors include gastrointestinal upset, headache, nasal congestion, back pain and dizziness. The PDE-5 inhibitors may interact with other medications including antihypertension drugs. Nonetheless, the PDE-5 inhibitors are generally safe and effective for most men. The primary mechanism of action of these drugs is through the mediation of NO. NO is one of the key molecules involved in ED. It is a short-lived, highly permeable, pleiotropic, gaseous molecule, secreted from the postganglionic cavernosal parasympathetic nerves, endothelium of the cavernosal blood vessels, platelets in the cavernosal sinuses and phagocytic cells (monocytes, macrophages and neutrophils). NO acts on platelets to inhibit platelets adhesion and aggregation. NO causes relaxation of the smooth muscle of the cavernosal blood vessels of the penis, leading to vasodilation, tumescence and stimulation. Release of NO in the corpus cavernosum of the penis during stimulation activates the enzyme guanylate cyclase, which results in increased levels of cGMP, producing smooth muscle relaxation in the corpus cavernosum and resulting in increased blood flow (5). NO is mainly produced from cavernosal nerves, which are nonadrenergic, noncholinergic nerves within the penis, and acting via its second messenger cGMP. It has been suggested that maintaining normal body weight and mild exercise, as well as dietary supplementation of folic acid, zinc, calcium, vitamin C, vitamin E and L-arginine, a precursor of NO, can support the biochemical pathway leading to NO release [6]. NO is an effector molecule that is involved in a number of intracellular functions such as vasorelaxation, endothelial regeneration, inhibition of leukocyte chemotaxis and platelet adhesion [7]. A small proportion of autonomic nerves do not release either Ach or norepinephrine [8]. For example, the cavernous nerves predominantly release NO in the penis. The exact mechanism is not known, but it is believed to be through increased intracellular calcium. Another gaseous molecule produced in the corpora cavernosa is hydrogen sulphide (H2S), which is also known to be involved in erectile function [9]. H2S activates ATP-sensitive potassium channels in smooth muscle cells. Some reports indicate that NO acts in large vessels and H2S in small vessels. A high level of tumour necrosis factor-alpha has been shown in ED patients [10]. Although current ED therapies using PDE-5 inhibitors are safe and effective, approximately 40% of ED patients do not respond to currently available treatment [11,12]. For these patients, herbal therapy may be useful.
3. Testosterone replacement. Before oral medications like Viagra, testosterone was routinely used to treat erectile dysfunction as it is central in the male sexual response, including the desire for sex and the process of getting an erection. Testosterone can be administered in a number of ways, for example orally, by means of an injection, skin patch, or subcutaneous (under the skin) pellet. 
Red Ginseng — One small randomized trial found evidence that red ginseng may offer modest improvements in ED symptoms (as compared with placebo). A meta-anaylsis published in the British Journal of Clinical Pharmacology states, “Traditionally red ginseng has been used to restore and enhance normal well-being, and is often referred to as an adaptogenic….Possible mechanisms of action of red ginseng include hormonal effects similar to those of testosterone. Others have postulated that red ginseng might induce relaxation of the smooth muscles.”  (5)

This study was carried out in areas in and around Queen Elizabeth Biosphere Reserve (QEBR) and some other sub counties such as Katerera, Kichwamba and Kitagata in Bushenyi and Munkunyu, Kayonza and Kitsinga in Kasese districts in Western Uganda. The sampling sites were located in the parishes around the biosphere reserve, and in the selected fishing villages within the biosphere reserve. These included, Katwe, Mweya, Katunguru, Hamukungu, Kahendero and Kayanja Fishing Villages and many other villages.

Impotence, also called erectile dysfunction (ED), can be a very frustrating problem. Some men are able to achieve an erection but are not able to maintain one. Others are not able to achieve one at all. Causes of impotence can be both physiological (affecting mostly the body and organs) or psychological (affecting the mind). Luckily, there are natural remedies for impotence you can try.

What are the alternatives to viagra? Erectile dysfunction, when a man cannot achieve or maintain an erection, is a common condition that causes much distress. Viagra is just one of several drug treatments that can help relieve the problem. Other methods and treatments can help, too, including alternative herbal remedies that people may wish to try. Read now
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Nettle leaf (Urtica dioica): amongst its many properties, nettle leaf has lately shown itself possibly effective for prostate health and prevention of prostate conditions, especially prostatitis, which is an inflammation of the prostate gland (16). There is speculation that nettle leaf may help with male pattern baldness. Prostate health is essential for men, no matter how young or old. Prevention starts when men are young, so as to avoid problems associated with aging. Prostate problems can interfere with a healthy sex life. Nettle is also considered to be an overall restorative for the body, as well as a natural diuretic and anti-inflammatory remedy (16). It is rich in iron, zinc, and chlorophyll.

Acupuncture. Though acupuncture has been used to treat male sexual problems for centuries, the scientific evidence to support its use for erectile dysfunction is equivocal at best. In 2009, South Korean scientists conducted a systematic review of studies on acupuncture for ED. They found major design flaws in all of the studies, concluding that "the evidence is insufficient to suggest that acupuncture is an effective intervention for treating ED."


Shape up. Because ED is often linked with restricted blood flow to the penis, keep your heart and arteries in good condition by maintaining a healthy weight, and following a diet high in fruits, vegetables and whole grains. Avoid saturated fats and trans fats. Regular aerobic exercise can improve blood flow to the genitals and reduce any stress that contributes to your ED.
Despite the name, horny goat weed actually helps improve your erection, not libido.  Botanically known as epimedium, this herb has been used by the Chinese for centuries to treat, among other things, low libido and erectile dysfunction. “A growing body of research shows that isolated icariin—the extract of epimedium—inhibits the enzyme phosphodiesterase-5 (PDE-5) and significantly increases nitric oxide synthase, helping to improve erectile function,” says Fisch. In fact, this is the same mechanism that Viagra works through (but the herb comes with a way better name).
A cold slice of watermelon can do more than just satisfy thirst and hunger during the warm summer months; it can help with bedroom satisfaction. Citrulline, the amino acid found in high concentrations of watermelon, is found to improve blood flow to the penis. A 2011 study revealed men who suffered from mild to moderate ED and took L-citrulline supplementation showed an improvement with their erectile function and were very satisfied. Natural watermelon juice, or “nature’s Viagra,” can also be easier on the stomach, since taking pills like Viagra can cause nausea and diarrhea.
No matter what erectile dysfunction treatment or treatments (whether herbal remedies or not) a man ultimately decides upon, experts say it's important to eat healthily and to avoid smoking and heavy drinking. Moreover, adequate exercise, stress reduction, and sleep can improve erectile dysfunction in many. In addition, says Lamm, "A loving, receptive, and responsive partner is a home run. After all, this is still a couple's issue."
W somnifera (ashwagandha), also referred to as winter cherry (family Solanaceae), grows in Africa, the Mediterranean, India, Pakistan, Bangladesh, Afghanistan, South Africa, Egypt, Morocco, Congo and Jordan [36]. The roots of the plant contain steroid alkaloids and steroidal lactone, which are the main constituents of ashwagandha; these compounds are referred to as withanolides. Among the various alkaloids, withnine is the main constituent. The other alkaloids are somniferin, somnine, somniferine, withananine, pseudowithanine, tropine, pseudotropine, cuscohygrine, anferine and anhydrine. Two acyl steryl glucosides (sitoindoside VII and sitoindoside VIII) have been isolated from the root. The withanolides contain a C28 steroidal nucleus with a C9 side chain and six-membered lactone rings. Ashwagandha root also contains flavonoids and many ingredients of the withanolide class. It has several medicinal applications (aphrodisiac, liver tonic, anti-inflammatory agent, astringent), and is used to treat bronchitis, asthma, ulcers, insomnia, senility and dementia. Clinical trials and studies involving animal models support the use of ashwagandha for anxiety, cognitive and neurological disorders, inflammation and Parkinson’s disease. It also provides cryoprotective benefits to patients undergoing radiation and chemotherapy, and shows beneficial effects for nervous exhaustion. W somnifera is used as an aphrodisiac, sedative and rejuvenative, and is also used to treat chronic fatigue, dehydration, bone weakness, muscle weakness, loose teeth, impotency, premature ejaculation, debility, constipation, senility, rheumatism, nervous exhaustion, memory loss, drug withdrawal symptoms, anxiety and arthritis pain in the knee. Extracts from W somnifera inhibit transcription factor nuclear factor kappa B (NF-κB); thus, it acts as an anti-inflammatory agent. This has been attributed to its ability to interact with IKKB, a kinase that is responsible for the nuclear translocation of NF-κB and activation of inflammatory signalling pathways [37].
While these side effects mainly create discomfort, some individuals are at risk for more serious, even life-threatening reactions to these drugs. Some men have reported fainting after taking impotence medications, and priapism (a painful condition involving an erection that does not subside after more than four hours) has also occurred as an effect of impotence drugs. This condition can lead to permanent nerve damage; injectable drugs may also cause irreversible damage to the penis if used incorrectly.
Tongkat Ali (Eurycoma longiflora) (Figure 7): this native plant found through SE Asia is used as an Aphrodisiac since 1996 (5). It has to be used regularly and works by enhancing the testosterone and cGMP production. Benefits are felt gradually over a period of time, mainly because it enhances the natural biological synthesis of testosterone. When the level is increased, health and vitality are restored. In studies on Mice, Tongkat Ali increases the number of times and duration of sexual performance of the animals under study (8) with testosterone levels increasing up to 440% in some animals. In a recent study on humans, 62% of subjects showed an increase of the free testosterone index indicating it’s biostimulatory effect on steroidogenesis. It has also been shown to increase sperm concentration and motility and increases energy in the individual by enhancing ATP production by 60% thru oxidative phosphorylation.

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.
Other factors that “stress” the body can also increase your risk for ED. These include: substance abuse, using marijuana, smoking cigarettes, depression, anxiety and low self esteem. Cigarette smoking — or using nicotine — leads to constricted blood vessels, which has negative effects for sexual health. Other mental/emotional obstacles can cause less desire for sex and decrease testosterone. Several ways to help manage stress include:
Therefore, this particular study was carried out purposely to document medicinal plants used by traditional medical practitioners to treat ED and sexual impotence and other male erectile related conditions in western Uganda. This manuscript only covers the ethnobotanical documentation of medicinal plants used in the management of erectile dysfunction excluding the socio-cultural aspects. The socio-cultural aspects in details will be presented in the next manuscript covering the broad range of reproductive health ailments management using the indigenous knowledge in western Uganda.
Despite the name, horny goat weed actually helps improve your erection, not libido.  Botanically known as epimedium, this herb has been used by the Chinese for centuries to treat, among other things, low libido and erectile dysfunction. “A growing body of research shows that isolated icariin—the extract of epimedium—inhibits the enzyme phosphodiesterase-5 (PDE-5) and significantly increases nitric oxide synthase, helping to improve erectile function,” says Fisch. In fact, this is the same mechanism that Viagra works through (but the herb comes with a way better name).
DHEA. DHEA, or dehydroepiandrosterone, is a natural hormone that the body uses to make the male hormone testosterone. DHEA and testosterone decrease with age, just as ED increases with age, so it seems that taking DHEA might protect against ED. But Harris says that "it is unlikely that taking DHEA would raise your testosterone enough to make much difference." DHEA should not be used by people with liver problems; it also has many side effects.
Muira puama (Ptychopetalum olacoides): although used in Asia, this potency wood is actually the best known Amazonian folk medicine which increases libido and penile hardness. It acts as a nerve stimulant to heighten receptiveness to sexual stimuli as well as physical sensation of sex (9). Rich in sterols e.g., sitosterol, campesterol and lupol it activates the body’s receptors for hormones like testosterone to heighten libido and enhance performance (5). Also present are volatile oils like champor which helps restore sex drive and inner depth of libido and mental ability to be aroused.

“Obecalp” is “placebo” spelled backwards. It might help – treatment with inactive placebos (inert substances used in evaluation of new drug treatments) works about one-third of the time in scientific studies when patients don’t know they’re getting a fake drug. Placebos are generally safe since they contain no known active agent. (However, I personally never give patients inactive placebos, and many physicians regard them as unethical.)

The medicinal plants used in male-related conditions will be very significant in the present and future generations. From the researchers point of view, the usage of herbal remedies in managing sexual impotence and erectile dysfunction is useful because of long history of utilisation of some herbs that are perceived as effective. Thus, the establishment of rapport between modern health workers through collaborative ventures with traditional healers, relevant NGOs like Rukararwe in Bushenyi by having close supervision and monitoring of herbal treatments in such conditions is noble. Ministry of Health through its research wing in traditional medicine the Natural Chemotherapeutics Research Laboratory in Wandegeya has role to play in advocacy of traditional medicine. In addition, Public-Private Partnership in Health Care Delivery Desk Office in Ministry of Health and distinguished researchers in herbal medicine need to network, collaborate and have policy in place for herbal medicine as an alternative form of health care in Uganda. The traditional herbal medicines, relevant to the needs of ailing Ugandans can be tried out after being licensed by the National Drug Authority. In our view, sexual impotence and erectile dysfunction are real silent conditions affecting Ugandan men. Additionally, further investigations into the safety and efficacy of these traditional herbal remedies used in the treatment of erectile dysfunction and other male-related conditions are recommended in Uganda.

Historically, it has been shown that herbal medicines may cure or prevent certain ailments. However, there are very little recorded data available to support the dose, efficacy, side effects and interactions. Because the safety and efficacy of herbal remedies have not been assessed, unlike synthetic drugs, well-controlled and randomized studies are warranted to establish the therapeutic efficy and safety of such products. Determination of side effects and interactions with prescription medicines are also needed. The amount of active ingredients in herbals may vary among preparations; thus, standardization of herbal medicines is required.
The neurovascular mechanism of erection is complex and involves multiple factors including hormones, neurotransmitters, elements of the autonomic nervous system (sympathetic and parasympathetic) and vasodilators such as NO. The common causes of ED include psychogenic disturbance with failure to relax cavernous smooth muscle, arterial insufficiency as a result of atheromatous disease, damage to the parasympathetic nervous system, spinal cord injury, diabetes or following pelvic surgery such as radical prostatectomy, radical cystectomy or bowel resection [4]. It is important to note that cavernous nerves are unique in that although they belong to the autonomic nerves system they do not release either acetylcholine (Ach) or norepinephrine; however, they release NO in the penis. NO relaxes the smooth muscle of the corpora cavernosa via cyclic GMP (cGMP), allowing expansion of the cavernosal lacunar spaces, blood flow and erection. Thus, NO is not a direct dilator of the smooth muscle of cavernosal bodies, but it is an important mediator in this process. Erectile function may also be adversely affected by cigarette smoking, excess alcohol consumption, obesity and systemic diseases such as mononucleosis, hepatitis, HIV and cancer. Some men are prone to develop an erection that fails to subside after ejaculation (ie, priapism). The condition is associated with sickle-cell disease and leukemia, or may be a result of intracavernosal injection of drugs such as prostaglandin E1 [4]. Peyronie’s disease causes a physical bend in the erect penis and also contributes to ED.
The herbal medicines used in the management of sexual impotence and erectile dysfunction are mainly prepared by pounding, chewing and boiling and are mainly orally administered. The traditional healers treat sexual impotence and ED by prescribing some of these herbs in tea or using local beers, fermented milk and porridge. Some herbs are herbs are roasted or smoked such as coffee before administration. The dispensing of herbal medicines used in sexual impotence and ED using local beers, fermented milk and porridge possibly the alcoholic content improves on the kind of active chemicals extracted than water alone12.
Ginseng is generally indicated for daily, consistent use in moderate doses. Do not use ginseng as a short-term stimulant. Ginseng and other adaptogens work best after long-term (one–three months) use by regulating hormone levels and other biological functions to protect us against the damaging effects of chronic stress,” says herbalist Christopher Hobbs, author of The Ginsengs. A typical dose is 4,000–6,000 mg per day.
For many men, stopping smoking is an erectile dysfunction remedy, particularly when ED is the result of vascular disease, which occurs when blood supply to the penis becomes restricted because of blockage or narrowing of the arteries. Smoking and even smokeless tobacco can also cause the narrowing of important blood vessels and have the same negative impact. 
The Science: There’s only been one double-blind placebo-controlled trial of the stuff: it found that men taking fenugreek extract reported that they felt more sexual arousal and experienced better orgasms. But testosterone levels in those same men didn’t change, and the study was also tiny–only 60 participants–so it’s not clear whether there’s actually a biochemical reason for the shift or whether it was all psychological. The experiment needs to be repeated with a larger group of people to find out whether those results can be reproduced.

We present herein a new herbal combination called Etana that is composed of five herbal extracts including Panax quinquelotius (Ginseng), Eurycoma longifolia (Tongkat Ali), Epimedium grandiflorum (Horny goat weed), Centella asiatica (Gotu Kola) and flower pollen extracts. Most of the above-mentioned extracts have a long historical and traditional use for erectile dysfunction (ED). On the basis of the mechanism of action of each of the above, a combination is introduced to overcome several physiological or induced factors of ED. This study was conducted to show an enhancement of erectile function in male rats. The animals were observed for 3 h after each administration for penile erection, genital grooming and copulation mounting, and the penile erection index (PEI) was calculated. The maximum response was observed at the concentration of 7.5 mg kg(-1) of Etana. At a 7.5 mg kg(-1) single dose, the percentage of responding rats was 53+/-7 with a PEI of 337+/-72 compared with 17+/-6 with a PEI of 30+/-10 for control animals. This PEI was significantly (P<0.001) higher than each single component and than the sum of any two herbal components of Etana. When compared with sildenafil citrate, Etana induced more pronounced PEI than 0.36 mg kg(-1), but similar to 0.71 mg kg(-1) of sildenafil. Furthermore, full acute and sub-acute toxicity studies showed no toxic effects of Etana. In conclusion, this study describes a new and safe combination of herbal components that enhance erectile function in male rats. Clinical studies are warranted for evaluating Etana's significance in ED.


L-arginine, or arginine, is an amino acid found in red meat, poultry, fish, and dairy products that helps expand blood vessels and increase blood flow. “The body uses this semi-essential amino acid as the primary building block for nitric oxide,” explains Harry Fisch, M.D., clinical professor of urology and reproductive medicine at Weill Cornell Medical College/New York Presbyterian Hospital.
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