L-Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as in DNA synthesis and protein production. It is an important precursor of Nitric Oxide (NO) and thus plays a role in the dilation of blood vessels. Our 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. Our promise - what is on the label, is precisely what is in the bottle.
 
Ingredients
Each capsule contains: L-Arginine 500 mg. Non-Medicinal Ingredients: Vegetable Capsule (hypromellose, water), Stearic Acid (vegetable source), Silica.
Suggested Usage and Storage
Adult Dosage: Take 2 capsules 1-3 times daily as required, between meals or at bedtime with a carbohydrate drink to facilitate absorption. Do not use beyond 8 weeks.
 
Caution
Consult a physician prior to use if you are pregnant or breastfeeding, if you suffer from cardiovascular disease and are attempting an increase in physical activity or if your cardiovascular condition worsens, or if you are taking medication for cardiovascular diseases, erectile dysfunction, and/or blood thinners. Do not use this product if you have had a heart attack/myocardial infarction. Some people may experience gastrointestinal discomfort.