There have only been two studies to date, however, evaluating the effectiveness of L-arginine for erectile dysfunction.
One study involved 50 men who took L-arginine (5 grams a day) or a placebo. After six weeks, significantly more men taking L-arginine experienced an improvement in sexual function compared with men taking the placebo. Interestingly, it only benefited men who had initially low levels of nitric oxide.
Another study using a smaller dose of L-arginine and a shorter treatment duration found no benefit with L-arginine use. The study involved 32 men with erectile dysfunction who took oral L-arginine supplements (500 milligrams three times per day) or a placebo for 17 days. Oral L-arginine was no better than the placebo.
Side effects may include digestive complaints. High dosees of L-arginine may stimulate the body's production of gastrin, a hormone that increases stomach acid. For this reason, L-arginine may be harmful for individuals with ulcers and people taking drugs that are hard on the stomach.
L-arginine may also alter potassium levels in the body, especially in people with liver disease. It should not be taken by people who are on medications that alter potassium levels, such as potassium sparing diuretics and ACE inhibitors.
heartofsong wrote:My hubby has seen an increase in orgasm intensity when taking Gingko Bilboa and Ginseng... but I don't think the effect would be anywhere near the potency of Viagra. :?: (Not sure because he's never taken Viagra.)
gymaddict wrote:L arginine did nothing for me in my late fifties when I was on a daily regimen of it.
Yohimbe however really gave me good erections. Problem is, yohimbe increases blood pressure so if you have a blood pressure problems, you should not use this stuff.

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