Horny Goat Weed

Horny Goat Weed Supplement Information

What Is Horny Goat Weed?

Horny goat weed (Epimedium) is a flowering plant often used in herbal supplements. There are actually several different types of horny goat weed species, all belonging to the Epimedium group of flowering plants. This herbal supplement is used for a variety of different purposes, probably most often for treating sexual problems such as impotence (also known as erectile dysfunction, or ED).

(Click Benefits of Horny Goat Weed for more information on what the supplement is used for.)

How Does It Work?

Horny goat weed probably contains numerous different "active" components. Importantly, it contains flavonoids (plant compounds that may have antioxidant activity) and phytoestrogens (estrogen-like compounds found in plants). One of these phytoestrogens, icariin, is a phosphodiesterase-5 (PDE5) inhibitor, much like Viagra^® (sildenafil) and other similar prescription impotence medications.

Is Horny Goat Weed Effective?

In general, there is little scientific evidence to suggest conclusively that the supplement really is effective for most uses (see Does Horny Goat Weed Work? for more information).

Dosing Information

As with most dietary supplements, there is no well-established standard dosage for horny goat weed.

(Click Horny Goat Weed Dosage for more information.)

Side Effects of Horny Goat Weed

Even though it is a "natural" product, horny goat weed can cause side effects. Some of the reported side effects include:

Dizziness
Vomiting
Dry mouth
A rapid heart rate (tachycardia)
Unusual mood or behavior changes.

(Click Horny Goat Weed Side Effects to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)

Drug Interactions

Theoretically, horny goat weed may interact with a few medications (see Horny Goat Weed Drug Interactions).

Safety of Horny Goat Weed

Horny goat weed seems to be relatively safe for many people, especially when used in moderation for a short period of time. Some people may be more likely to experience problems due to this herbal supplement. Therefore, you should talk with your healthcare provider prior to taking it medicinally if you:

Have a bleeding disorder
Have low blood pressure (hypotension)
Have any chronic or severe medical condition
Have any allergies, including allergies to foods, dyes, or preservatives
Are pregnant or thinking of becoming pregnant (see Horny Goat Weed and Pregnancy)
Are breastfeeding (see Horny Goat Weed and Breastfeeding).

Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.

(Click Is Horny Goat Weed Safe? for more information, including any available warnings and precautions.)

What If I Take an Overdose?

It is not known exactly what to expect from an overdose of this supplement. If you think you or someone else may have taken too much, it is important to seek immediate medical attention.

(Click Horny Goat Weed Overdose for more information.)

Storage Methods for Horny Goat Weed

Refer to the label of your individual product for information on how to best store horny goat weed. Keep all medications and supplements out of the reach of children.