Doctor's Best Sustained Plus Immediate Release L-Arginine, Non-GMO, Vegan, Gluten & Soy Free, 500 mg, Tablet, 120 Count

Dear Amazon Friends,My profession before was Biochemist.Since I have had Surgery for Bowel Cancer, I received also Radiotherapy and Chemotherapy.It is a known fact that After this treatments, the Libido is going down.So L-Arginine is for sure The Product who can help.YES, It supports the cardiovascular system, and of course the circulation of the blood throughout the body.Its conversion to Nitric Oxide is very important for the body and even good to Protect the bowels against cancer cells .(some Doctors (MD) say cancer cells don't like nitric acid, and don't develop that way)We all have good and bad cells in our body, and it depends on the conditions in which the cells are to develop or not.I would anyhow advise to take 2 tablets a day (1 in the morning and 1 in the evening)and ASK first your Doctor(MD),because our bodies are reacting in a different way, Also depending on what kind of Other medicine we take.So, conclusion : Product is working fine for me, and helps a lot. But ASK YOUR DOCTOR(MD) First,...Please !He is the Only one who knows Your Medical History, and he can decide if it is good to take the product or not,this to avoid eventual Side affects with Other Drugs You take. The chance for side effects is very very low anyhow.NEVER EVER Experiment on YOUR OWN with Any Drug, ALWAYS ASK YOUR DOCTOR (MD)!I am sure , that If you ask Your DoctOr(MD), He will tell you, that you can take The L-Argenine 500mg, without Any Problem.For Me, the Product is working just Fine ! Thanks.... It's The Doctor's BestWarm regards, and Good Luck !WFEM

Great product! Tablets, 500mg arginine in total per tab. People take arginine for a variety of reasons but I use it to increase growth hormone production and increase blood flow. I started it today so tomorrow if I look a little more cut I'll believe my GH is up but I can already attest that it increases blood flow...

Powerful stuff. Much better than the cheap walmart brand - I noticed a big difference. I combined 2 of these with 1000 mg lysine when I was feeling anxious, and it totally calmed me down. Worked better for me than anything else I tried, including 5-htp and tryptophan. Also increases libido.I'm very sad that I had to stop taking it because it made me break out in cold sores. I had not had an outbreak in 15 years before that.

A lot of people take L ARGININE for the PUMP pre and after workouts. There is an awful lot of info out there about taking it also in enormous quantities for heightened performance. All of that is fine and probably effective but I don't really like loading in huge amounts of supplements at onvce just to achieve short term goals pf vanity. What i like about this amino acid is how it can lower blood pressure and help clear arteries as well as assist in increasing the effectiveness of other supplements as well as prolonging anti oxidant action. This brand and mechanism is the right one for people who want to use it for HEALTH and LONGEVITY and A FEELING OF WELL BEING- NOT FOR PUMPS IN THE GYM. Although I will say I do see and feel the L ARG hardness in my muscles with solid vein visibility also- but if you take this twice a day for prolonged periods you are really going to improve your health massively- SUSTAINED RELEASE is the ONLY WAY TO REALLY GO WITH L ARGININE - SO HAPPY WITH THIS PRODUCT TRULY

I agree with another observer that these are larger than most and can be difficult to swallow without one's throat closing up. They are not smooth so I tried swallowing with a teaspoon of yogurt and a swallow of milk--while that usually works, I just had one episode of severe spasm causing the milk to come back up and I suspect the tablet went down--was frightening. Wish there was a sustained release form that could be cut in half.

I first heard about L-Arginine as a natural alternative to ED medication. As I aged, high blood pressure, also, became an issue. However, BP medications were not working well enough. My numbers have much improved by adding Sustained-Release L-Arginine to my BP medication. I take my Rx med in the morning and an L-Arginine in the afternoon and again before bedtime. It might work for you, but everybody is different. Check with your doctor.

Improves heart health and gives a LONG TERM energy boost. But in a gentle way as such that it won't interrupt sleep.

Have to admit, at first this supplement scared me badly! I took one dose right before bed, and was kept awake with horrible heart palpitations!After some research, I found out that L-arginine slightly lowers potassium levels in the blood. I decided to continue, and make sure I had fruit and veggies with each meal or snack, no exceptions.Soon my body adjusted, and I do not have be so strict anymore. In fact, it helps me sleep a little better now.Overall, my biggest selling point on it though, is that it quickly lowered my blood pressure about 10-15 points so far. It's been enough that the doctor decided not to put me on meds for it, and I'm hoping it will continue to drop a little more to normal.