BY SANDRA GUY

The name says it all: Horny Goat Weed — an ancient Chinese herbal remedy that made headlines 12 years ago as a potential source for new drugs to treat erectile dysfunction.

Men with erectile dysfunction are unable to get or keep an erection firm enough for satisfactory sexual intercourse — a problem that can be short-term or long-term. Risk factors include age, diabetes, obesity, smoking, depression and heavy drinking.

Scientists who tested horny goat weed exposed the substance to an enzyme that controls blood flow to the penis. The herb inhibited the enzyme, meaning that it acted similarly to Viagra, a prescription drug, but with fewer potential side effects.

It’s now sold over the counter, and it’s been touted as also helping relieve fatigue.

Yet the U.S. Food and Drug Administration cautions that any supplement sold as a Viagra alternative may contain synthetic chemicals or other ingredients that can be risky.

People with heart disease, congestive heart failure, allergic sensitivities, hormone-sensitive cancer or other medical problems should talk to their doctor before taking any such alternative medications.

Experts also warn that horny goat weed may be risky for people who take blood thinners and medications that treat heart disease, thyroid disease, high blood pressure or irregular heartbeat.