The Science: Male rats with damaged penile nerves had better erectile responses after they were given large doses of purified icariin, but as of yet no one has done the experiments to see whether the compound works in humans. Still, as far as the herb goes, it doesn’t really matter: horny goat weed doesn’t contain enough icariin to get even the smallest rise out of a rat.

The estimated range of men worldwide suffering from ED is from 15 million to 30 million23. According to the National Ambulatory Medical Care Survey (NAMCS), for every 1,000 men in the United States, 7.7 physician office visits were made for ED in 1985. By 1999, that rate had nearly tripled to 22.3. This is in USA, where statistics are clearly compiled, the level of awareness and education is high as compared to sub Saharan countries like Uganda. This is a clear indication that there are many silent men, particularly couples affected by ED.
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.
A number of nonprescription products claim to be herbal forms of Viagra. Some of these products contain unknown amounts of ingredients similar to those in prescription medications, which can cause dangerous side effects. Some actually contain the real drug, which should be given by prescription only. Although the Food and Drug Administration has banned many of these products, some potentially dangerous erectile dysfunction remedies remain on the market.
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