Does Horny Goat Weed Improve Erectile Dysfunction?

Many people believe that the herb epimedium has the effect of supporting the improvement of erectile dysfunction. I hope the expert can advise. (Tuan, 38 years old, Hanoi )

Reply:

Horny goat weed has many other names such as horny goat weed, lung kinh thao, coptis chinensis... This herb contains the active ingredient icariin, which has been proven to be beneficial for people with erectile dysfunction.

In principle, when sexually aroused, the body secretes nitric oxide, which increases the synthesis of cyclic guanosine monophosphate (cGMP), causing vasodilation, increasing blood flow to the penis, leading to an erection. In people with erectile dysfunction, the protein enzyme phosphodiesterase type 5 (PDE5) interferes with nitric oxide and cGMP, obstructing blood flow to the penile arteries, making it impossible for the penis to become erect.

The active ingredient icariin in epimedium works by inhibiting the activity of PDE5, allowing blood to flow to the penis and creating an erection. However, epimedium may not be effective for everyone. Using epimedium can also lead to side effects such as nosebleeds, dizziness, irregular heartbeat, or adverse interactions with other medications. Taking large amounts suddenly can lead to spasms and breathing problems.

Additionally, research on the effects of epimedium on humans is limited, with studies primarily in animals.

If you are experiencing symptoms of erectile dysfunction and are looking for natural solutions, you may want to consider red ginseng, hormone therapy, acupuncture, lifestyle changes, and increased physical activity such as exercise. However, all methods should be discussed with your doctor.

Doctor Nguyen Hoai Thu
Vietnam Institute of Applied Medicine

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