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A 49-year-old member asked:

are there any differences between the types of l-arginine?

1 doctor answer2 doctors weighed in
Dr. Richard Bensinger
Ophthalmology 52 years experience
unlikely: Assuming that the source of the l-arginines that you are considering are reliable, then this is a basic Amino Acid which should be the same whatever the source. There is always a risk with unregulated products like this that you are getting less than the label says, or some hopefully benign adulterant to save money for the manufacturer.

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IA
A 49-year-old member asked:

Is l-arginine safe to take long term?

3 doctor answers3 doctors weighed in
Dr. Barbara A Majeroni
Specializes in Family Medicine
Unknown: L-arginine has been used safely for up to 3 months. There are no long term studies to verify safety for long term use.
A 34-year-old member asked:

How much l-arginine can I take without having harmful side effects?

1 doctor answer4 doctors weighed in
Dr. Christopher Dowd
Internal Medicine 20 years experience
Unknown: All meds & supplements have potential side effects, and usually it's a pretty long list of potential but uncommon side effects. Side effects are not always dose dependent, so even 1 dose can sometimes cause. Just b/c it's a supplement doesn't mean no risk. I discuss w/ my pts about doing a risk-benefit analysis before starting a new tx.
Port Arthur, TX
A 60-year-old male asked:

What is l-arginine good for?

1 doctor answer1 doctor weighed in
Dr. Bryan Levey
Pediatrics 27 years experience
Arginine: ....Is something your body normally makes, but you can be deficient if you don't have enough of the building blocks. Symptoms of deficiency include poor wound healing, hair loss, skin rash, constipation, and fatty liver. There is some evidence it may be useful for claudication (pain in your legs with exercise due to poor circulation). It's used for lots of other things, but without good evidence.
A 46-year-old member asked:

What are considered well accepted benefits and side effects you have personally seen from l-arginine?

1 doctor answer1 doctor weighed in
Dr. Bennett Machanic
Neurology 52 years experience
Helps ED: At sufficient dosing, there is an effect on male sexual abilities, and this otc approach would be far cheaper than cialis, viagra, (sildenafil) etc. But need to take on empty stomach, and at sufficient dosing.
Kuwait
A 16-year-old male asked:

What is the safe dosage of taking l-arginine ?

2 doctor answers4 doctors weighed in
Dr. Klaus d Lessnau
Pulmonary Critical Care 36 years experience
Voodoo: Eat veg, salad, fruit and fish/twice weekly arginine is another voodoo scam. And exercise at least 3 times weekly. All proven. Arginine is another glutamine scam.

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Last updated Jun 24, 2014

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