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Goat Weed Purchase & Information

Alternative Names

Barrenwort, Epimedium Grandiflorum Radix, Epimedium, Épimède du Japon, Épimède à Grandes Fleurs Épimède, Goat Weed, Hierba de Cabra en Celo, Herbe Cornée de Chèvre, Herba Epimedii, Japanese Epimedium, Yin Yang Huo

Scientific Name

Epimedium Saggittatum

Why Do People Use Goat Weed?

The oral preparations of Epimedium Grandiflorum (Goat weed), like goat weed powder, are used for a number of purposes that include for involuntary ejaculation, impotence, for soreness of knees and back, sexual dysfunction, osteoarthritis, arthralgia, memory loss, coronary heart disease, hypertension, chronic hepatitis, bronchitis, for polio, HIV/AIDS, viral myocarditis, chronic leukopenia, osteoporosis, postmenopausal bone loss and as an aphrodisiac & general tonic. It is also believed to have anti-microbial effects.

Is It Safe To Use?

Possibly Safe - Goat weed is considered safe as long as it utilized orally for appropriate period of time. Particular combination of phytoestrogen extract of goat weed containing 15 mg of daidzein, 60 mg of icariin and 3 mg of genistein is considered safe if utilized for appropriate time period for up to 24 weeks. Possibly Unsafe>br /> Oral usage of goat feed powder in high doses or for long-term period is considered likely unsafe. High doses or long-term use of some type of goat weed may be responsible for severe adverse effects like respiratory arrest. Pregnancy - Oral utilization of goat weed should be avoided in pregnancy because it may have androgenic effects and may therefore harm the developing fetus. Lactation - Epimedium Grandiflorum should be avoided by breastfeeding female because there is inappropriate information available about its safety.

How Effective Is Goat Weed?

There is inadequate information available about the effectiveness of goat weed powder in following conditions: Osteoporosis - According to clinical experiments, it has been suggested that oral intake of particular combination extract of phytoestrogen goat weed consisting of 15 mg of daidzein, 60 mg of icariin and 3 mg of genistein may lessen the loss of bone density in femoral neck and lumbar spine in post-menopausal women as compared to placebo. However, more confirmations are required for determining goats weed effectiveness for this specific usage.

How Goat Weed Works?

The most effective part of Epimedium Grandiflorum is its leaves. Number of constituents have been isolated from the leaves including flavonoids, for example, apigenin, quercetin, kaempferol, luteolin and breviflavone. Different constituents like glycosides, polysaccharides, essential oils ceryl alcohol and fatty acids, genistein phytoestrogens icariin and daidzein. The glycosides in goat weed may have hormonal impacts. Clinical trials on animals recommend that goat weed prompts semen emission and empowers prostate growth, anus rectus muscle and testes. Other studies also recommend that it may increase testosterone discharge. Epimedium Grandiflorum may be responsible for vasodilation, likely by blocking calcium channels. It is also reported that it may have hypotensive impacts likely by blocking the action of catecholamines. The constituent of icariin represses phosphodiesterase-5 (Pde5) and improves cyclic guanosine monophosphate (cGMP) in smooth muscle cells. Goat weed builds coronary blood flow and decrease collection of platelets. It may also stimulate the immune system against HIV virus. It also decreases the level of homocysteine by repressing S-adenosyl-L-homocystein hydrolase in hepatic cells. A goat weed powder extract of phytoestrogen appears to lessen bone damage in postmenopausal ladies by diminishing bone resorption markers without influencing level of endometrial or estradiol density.

What Are The Side Effects /Adverse Reactions of Goat Weed?

Orally - A particular extract of phytoestrogen goat weed containing 15 mg of daidzein, 60 mg of icariin and 3 mg of genistein has been considered safe when utilized for up to 24 months. On the other hand, different species of Epimedium Grandiflorum have not been decently endured when utilized for long time. Such usage has been related with various side effects that include vomiting, nosebleeds dizziness, thirst and dry mouth. Large doses of goat weed may be responsible for exaggeration and respiratory arrest of tendon reflexes to the point of spasm. Clinical studies also demonstrate that oral intake of single dose of a particular commercial item containing goat weed can extend the QT interval on electrocardiogram in healthy men. Delayed QT interval is a risk factor for sudden heart attack issues. On the other hand, it is not known whether goat weed powder or other constituents are because of this impact.

How Goat Weed Interacts With Other Herbs and Supplements?

Herbs And Supplements with Antiplatelet or Anticoagulant Properties - When people orally take the combination of Antiplatelet or Anticoagulant supplement/herb with goat weed herbs, it may enhance the bleeding risks and may also block platelet aggregation. These herbs include clove, angelica, red clover, quassia, garlic, danshen, ginkgo, willow, ginger, turmeric and some other herbs as well. Hypotensive Supplements & Herbs - Goat weed powder may have hypotensive impacts. Combination of goat weed with other supplements and herbs that lessen blood pressure may enhance the hypotension risks. Some of these products include casein peptides, cat's claw, L-arginine, fish oil, andrographis, coenzyme Q-10, theanine, stinging nettle, lyceum and other as well.

How Goat Weed Interacts With Drugs?

Antihypertensive Drugs - Interaction rating between antihypertensive drugs and Epimedium Grandiflorum is moderate, so be careful about this combination. Hypotensive effects have been reported due to goat weed. QT Interval-Prolonging Drugs - Interaction rating between goat weed powder and drugs that increase the QT interval is moderate, so be careful about this combination. A single dose of a particular commercial product which containing goat weed (Berkeley Premium Nutraceuticals, Enzyte) can increase the QT interval on electrocardiogram in healthy men. Increased QT invertal is risk factor for sudden death by sudden heart attack. Such drugs include disopyramide (Norpace), amiodarone (Cordarone), ibutilide (Corvert), dofetilide (Tikosyn), quinidine, procainamide (Pronestyl), thioridazine (Mellaril), sotalol (Betapace) and some other related herbs as well.

How Goat Weed Interacts With Foods?

No interaction has been found between goat feed powder and various food items.

How Goat Weed Interacts With Lab Tests?

No interaction has been found between Epimedium Grandiflorum and other lab tests.

How Goat Weed Interacts With Diseases and Conditions?

Hypotensive effects have been observed due to goat weed powder. Individuals with low blood pressure may worsen hypotension and may lead to syncope.

What Should Be the Dose/Administration of Goat Weed?

ORAL For the osteoporosis treatment, particular combination extract of phytoestrogen goat weed consisting 15 mg of daidzein, 60 mg of icariin and 3 mg of genistein plus 300 mg of elemental calcium should be utilized on daily basis.


The leaves of Japanese Epimedium or Epimedium grandiflora are typically utilized.

General Certificate of Analysis (COA)

Specification sheet links below are a standard copy of the COA less the batch or lot number and manufactures dates. Specification sheet can be dated and should only be considered as a general information. Please contact and request an up to date COA if needed for specific updated information before placing order by filling out the contact form with product name and SKU number. If ordering quantities of twenty five kilos or more contact for availability.


These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

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