Ashwagandha (Withania somnifera), used widely in Ayurvedic medicine, holds a similar role to that of ginseng in Chinese medicine. Though unrelated to ginseng, it appears to share similar properties and actions. Ayurveda considers this herb to be a rasayana, or particularly powerful rejuvenative. The name ashwagandha means “like a horse,” connoting that it is regarded as a premier sexual tonic.
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.
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.
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.
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.
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].
The Science: Chemicals inside these plants called ginsenosides are thought to ramp up the physiological pathway that makes nitric oxide, the neurotransmitter that gets the blood flowing during penile erection. Some studies support that idea: one found that ginsenoside-rich ginseng berry extracts relaxed smooth muscle inside rabbit erectile tissue. But so far there haven’t been high-quality double-blind and randomized trials of the chemicals’ effect on humans. The jury’s still out on whether ginsenosides have any effect on people at all, or (if they do) whether they work as well as medications like Viagra.
Saw palmetto. Saw palmetto comes from the fruit of a small palm tree. It has been used to treat symptoms in men with an enlarged prostate gland, such as difficulty urinating, and it has been recommended to treat ED caused by an enlarged prostate. However, several recent clinical trials did not show that saw palmetto works any better on an enlarged prostate than a placebo does. "There is no evidence that saw palmetto should be used to treat erectile dysfunction," says Dr. Gilbert. Like ginkgo biloba, saw palmetto can interact with some prescription medications.
Although there are few men who are born absolutely impotent, the number of men with erectile problems are many especially those tending to 50 years and above. Pfizer28 reported that about 40% of men above years, 50% of men above 50 years, 60% of men above 60 years and in any population are affected by ED. ED has profound effect on psychological well being, it can be devastating, it can lead to low self-esteem, depression, negative effect on relationships and reduced life satisfaction28. Among several other causes, aging is one of the factors leading to ED. There are some other social causes of ED such as high unemployment rates, and diseases like diabetes, hypertension, HIV/AIDS, high cholesterol levels, stress, smoking and obesity28. ED is slowly creating adverse problems in homes in Uganda and particularly, among the mid-aged and old men. The men with sexual impotence and erectile dysfunction deserve proper diagnosis of the conditions and treatment. Thus, the plant remedies described may be healthy if administered

Ginkgo biloba. Known primarily as a treatment for cognitive decline, ginkgo has also been used to treat erectile dysfunction -- especially cases caused by the use of certain antidepressant medications. But the evidence isn't very convincing. One 1998 study published in the Journal of Sex & Marital Therapy found that it did work. But a more rigorous study, published in Human Pharmacology in 2002, failed to replicate this finding. "Ginkgo has come out of fashion in the past few years," says Ronald Tamler, MD, assistant professor of medicine and codirector of the men's health program at Mount Sinai Medical Center in New York City. "That's because it doesn't do much. I can say that in my practice, I have not seen ginkgo work -- ever."
Animal testicles: derived from bulls and wild boars, the orchic substance has been used as a way to possibly increase testosterone levels and sperm counts. In Singapore, testis soap was once very popular (Figure 2). It is still sold in parts of China and Japan. The dried Dog testis and penis (canis familiaris) is believed to tonify the kidneys and strengthen the yang II. Kidney deficiency is believed to be the cause of impotency in Chinese literature.
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.
The search for a cure for erectile dysfunction (ED) dates back way before the introduction of Viagra in the 1990s. Natural aphrodisiacs, from ground rhinoceros horn topa chocolate, have long been used to increase libido, potency, or sexual pleasure. These natural remedies are also popular because they’re said to have fewer side effects than prescribed medications.
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