NOW Foods L-Arginine 1000mg

L-Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as DNA synthesis. L-Arginine is the substrate for the synthesis of nitric oxide (NO), a cell-derived relaxing factor that is essential for regulating vascular tone and blood flow. It also supports the manufacture of creatine, an energy substrate for muscles. 95% of creatine is located in the skeletal muscle.  This is a double-strength formula. NOW® natural and organic Supplements are an effective way to ensure you and your loved ones are getting essential vitamins, minerals and nutrients for daily optimal health. Since 1968, NOW has been making top quality products that are tested to the highest standards to empower people to lead healthier lives. Now's promise - what is on the label, is precisely what is in the bottle.   

Recommended Dosage: Adult Dosage: Take 1 tablet 1-3 times daily, between meals or at bedtime with a carbohydrate drink to facilitate absorption. Do not use beyond 8 weeks.

Caution: Consult a health care practitioner prior to use if you have human herpes virus, sickle cell anemia, are taking antihypertensives, cyclosporine, estrogens, birth control medications, medroxyprogesterone, norethindrone, nitrates, potassium-increasing drugs, sildenafil, xylitol, and/or aminophyllins. Do not use if you have gout, decreased platelet count, elevated blood-urea-nitrogen, serum creatine and creatinine, delayed menses, asthma, are pregnant or breastfeeding. Do not use if you have had a myocardial infarction (heart attack).