L-Arginine Ingredients & Drug Interactions
by New Sun
What is this page for?
First and foremost: checking L-Arginine against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
L-Arginine is a dietary supplement by New Sun with 1 active ingredient. Its ingredients are commonly taken for high blood pressure, erectile dysfunction, athletic performance.Based on those ingredients, 403 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are L-Arginine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against L-Arginine by New Sun
Ask about any prescription or over-the-counter medication and we check it for interactions with L-Arginine by New Sun — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
Ask the Pharmacist
A licensed pharmacist will answer your question by email — free, usually within 24 hours.
Got it — thank you!
A licensed pharmacist will answer within 24 hours. Keep an eye on your email (worth checking spam, just in case).
HelloPharmacist Scorecard of L-Arginine by New Sun
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product contains one active ingredient: L-arginine, an amino acid your body uses to make proteins and other compounds. The rest is inactive ingredients — the gelatin capsule shell, magnesium stearate (a flow agent), and silicon dioxide (an anti-caking agent).
Does it work?
Couldn't assess
We don't have effectiveness ratings on file for L-arginine. That doesn't mean it doesn't work — it means the evidence we hold doesn't establish a rating for it yet.
How safe is it?
Well-documented data
L-arginine is generally well tolerated when taken orally short-term. Common side effects from the oral form include abdominal pain, bloating, nausea, diarrhea, headache, insomnia, and flushing.
However, safety for self-treatment isn't well established, and because L-arginine can lower blood pressure, it's not safe for everyone — you should use it only under medical supervision. For pregnancy: the data rates L-arginine as possibly safe.
For breastfeeding, we don't have safety information on file. Talk with your doctor or pharmacist about whether it's right for you in either situation.
Meds to double-check
Moderate interaction found
Before you take L-Arginine, double-check with your doctor or pharmacist if you're on blood pressure medications (ACE inhibitors, ARBs, or other antihypertensives), potassium-sparing diuretics, blood thinners or antiplatelet drugs, diabetes medications, isoproterenol, or sildenafil. These all have documented Moderate-severity interactions with L-arginine.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
L-Arginine can be an option if your doctor believes it's appropriate for you, but it's not a supplement you should take on your own without guidance. Because it interacts with blood pressure drugs, heart medications, diabetes drugs, blood thinners, and water pills — and because it can lower blood pressure on its own — check with your doctor or pharmacist before starting it, especially if you're on any prescription medications.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Apr 22, 2021.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about L-Arginine, straight from the product label.
| Brand | New Sun |
|---|---|
| Barcode (UPC) | 51-6 |
| Net contents | 100 Vegetarian Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Apr 22, 2021 |
| DSLD ID | 244873 |
| Product type | Amino Acid/protein |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Women (not pregnant or lactating) |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for L-Arginine by New Sun, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Arginine | 1 Gram(s) | -- |
Other ingredients: Bovine Gelatin, Magnesium Stearate, Silicon Dioxide
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Suggested/Recommended/Usage/Directions
Recommendation: Take 2 capsules twice daily as needed. Take between meals or at bedtime with at least 8 oz. of water or juice to facilitate absorption.
Formula
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.
Amino acid Conditionally essential amino acid
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Precautions
Warning: Take this product with at least 8 oz. of water or juice. For adults only.
Not for pregnant or nursing women. Consult physician if taking medication (especially antihypertensives, anticoagulants, and antidiabetic drugs), have a medical condition (especially asthma or renal disease) or are planning to have surgery.
This product should be avoided by persons with glaucoma or herpes simplex unless otherwise prescribed by a physician. Do not use if you have had a myocardial infarction or have established coronary artery disease.
Keep out of reach of children.
Formulation
Nitric oxide precursor
Natural color variation may occur in this product.
FDA Statement of Identity
Dietary Supplement
Storage
Store in a cool, dry place after opening.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
L-Arginine by New Sun label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in L-Arginine by New Sun
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size2 Capsule(s) Dosage formCapsule Servings per container50 Amounts shown are per serving.
L-Arginine
Interacts with403 drugs
L-arginine is an amino acid that the body uses to make nitric oxide, a substance that helps blood vessels relax and widen. It is popularly used for bl...
L-Arginine monograph & interactionsOther (inactive) ingredients: Bovine Gelatin, Magnesium Stearate, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.
L-Arginine by New Sun Drug Interactions
HelloPharmacist Interaction Report
L-Arginine by New Sun can interact with several important medication types.
The most serious concern is with blood pressure medications (antihypertensives) — L-arginine boosts a substance in your blood vessels called nitric oxide that relaxes them, so combining it with drugs that already lower blood pressure could drop yours too far.
Read the full breakdown — every affected drug type, severity by severity
You'll also want to be careful with ACE inhibitors and ARBs (two common classes of blood pressure and heart drugs), potassium-sparing diuretics (water pills that spare potassium), blood thinners and antiplatelet drugs (like aspirin or warfarin), diabetes medications, isoproterenol, and sildenafil (Viagra). All of these have Moderate-severity interactions with L-arginine — meaning they could add up to unwanted effects like very low blood pressure, high potassium levels, increased bleeding risk, or low blood sugar.
Altogether, these interactions span 403 individual medications.
We don't have interaction data on file for inactive ingredients in this capsule (bovine gelatin, magnesium stearate, and silicon dioxide). If you take any of the medication types listed above, use the search tool on this page to check your exact drugs before starting L-arginine.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against L-Arginine?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in L-Arginine interact with 403 drugs. Click any drug to see the details.
1 of the 1 ingredient in L-Arginine interact with drugs. Each result below shows which ingredient is responsible. L-Arginine
AnagrelideAgrylin
How Anagrelide interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Anagrelide interactionAnisindioneMiradon
How Anisindione interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Anisindione interactionAntidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) InhibitorGlyxambi
How Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine might have additive effects with antidiabetes drugs.
Read the full L-arginine + Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interactionAntithrombin IiiThrombate III
How Antithrombin Iii interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Antithrombin Iii interactionApixabanEliquis
How Apixaban interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Apixaban interactionAprocitentanTryvio
How Aprocitentan interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine + Aprocitentan interactionArgatrobanArgatroban
How Argatroban interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Argatroban interactionAspirinAngettes 75, ASA, Asaphen, Aspirin, Caprin, Cartia +8 more
How Aspirin interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin interactionAspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #3
How Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interactionAspirin, ButalbitalAxotal
How Aspirin, Butalbital interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Butalbital interactionAspirin, Butalbital, CaffeineFiorinal
How Aspirin, Butalbital, Caffeine interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Butalbital, Caffeine interactionAspirin, Butalbital, Caffeine, Codeine PhosphateFiorinal w/ Codeine
How Aspirin, Butalbital, Caffeine, Codeine Phosphate interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Butalbital, Caffeine, Codeine Phosphate interactionAspirin, Butalbital, Caffeine, PhenacetinMarnal
How Aspirin, Butalbital, Caffeine, Phenacetin interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Butalbital, Caffeine, Phenacetin interactionAspirin, CaffeineAnacin
How Aspirin, Caffeine interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Caffeine interactionAspirin, Caffeine, Codeine PhosphateAnacin w/ Codeine
How Aspirin, Caffeine, Codeine Phosphate interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Caffeine, Codeine Phosphate interactionAspirin, Caffeine, Dihydrocodeine BitartrateSynalgos DC
How Aspirin, Caffeine, Dihydrocodeine Bitartrate interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Caffeine, Dihydrocodeine Bitartrate interactionAspirin, Caffeine, Dover's PwdAcedoval, Dovacet
How Aspirin, Caffeine, Dover's Pwd interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Caffeine, Dover's Pwd interactionAspirin, Caffeine, HydrocodoneDamason-P
How Aspirin, Caffeine, Hydrocodone interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Caffeine, Hydrocodone interactionAspirin, Caffeine, Isobutylallylbarbituric Acid, PhenacetinLanorinal
How Aspirin, Caffeine, Isobutylallylbarbituric Acid, Phenacetin interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Caffeine, Isobutylallylbarbituric Acid, Phenacetin interactionAspirin, Caffeine, OrphenadrineInvagesic, Invagesic Forte, Norgesic, Norgesic Forte, Orphengesic, Orphengesic Forte
How Aspirin, Caffeine, Orphenadrine interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Caffeine, Orphenadrine interactionAspirin, Caffeine, Phenacetin, PropoxypheneMargesic Comp. 65
How Aspirin, Caffeine, Phenacetin, Propoxyphene interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Caffeine, Phenacetin, Propoxyphene interactionAspirin, Calcium Carbonate, Magnesium Carbonate, Magnesium OxideBufferin
How Aspirin, Calcium Carbonate, Magnesium Carbonate, Magnesium Oxide interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Calcium Carbonate, Magnesium Carbonate, Magnesium Oxide interactionAspirin, CarisoprodolSoma Compound
How Aspirin, Carisoprodol interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Carisoprodol interactionAspirin, Carisoprodol, Codeine PhosphateSoma Compound w/ Codeine
How Aspirin, Carisoprodol, Codeine Phosphate interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Carisoprodol, Codeine Phosphate interactionAspirin, Chlorpheniramine, PhenylpropanolamineAlka-Seltzer Plus Cold
How Aspirin, Chlorpheniramine, Phenylpropanolamine interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Chlorpheniramine, Phenylpropanolamine interactionAspirin, Citric Acid, Sodium BicarbonateAlka-Seltzer Pain Reliever and Antacid
How Aspirin, Citric Acid, Sodium Bicarbonate interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Citric Acid, Sodium Bicarbonate interactionAspirin, Codeine PhosphateAspirin w/ Codeine
How Aspirin, Codeine Phosphate interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Codeine Phosphate interactionAspirin, Codeine Phosphate, MethocarbamolRobaxisal C
How Aspirin, Codeine Phosphate, Methocarbamol interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Codeine Phosphate, Methocarbamol interactionAspirin, Codeine Phosphate, PhenobarbitalPhenaphen
How Aspirin, Codeine Phosphate, Phenobarbital interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Codeine Phosphate, Phenobarbital interactionAspirin, Diphenhydramine, PhenylpropanolamineAlka Seltzer Plus Night Time Effervescent
How Aspirin, Diphenhydramine, Phenylpropanolamine interacts with L-Arginine — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full L-arginine + Aspirin, Diphenhydramine, Phenylpropanolamine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in L-Arginine with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
L-Arginine
Ace Inhibitors (Aceis)
Theoretically, concomitant use of L-arginine and ACE inhibitors may increase the risk for hypotension and hyperkalemia.
Combining L-arginine with some antihypertensive drugs, especially ACE inhibitors, seems to have additive vasodilating and blood pressure-lowering effects. Furthermore, ACE inhibitors can increase potassium levels. Use of L-arginine has been associated with hyperkalemia in some patients. Theoretically, concomitant use of ACE inhibitors with L-arginine may increases the risk of hyperkalemia.
Angiotensin Receptor Blockers (Arbs)
Theoretically, concomitant use of L-arginine and ARBs may increase the risk of hypotension and hyperkalemia.
L-arginine increases nitric oxide, which causes vasodilation. Combining L-arginine with ARBs seems to increase L-arginine-induced vasodilation. Furthermore, ARBs can increase potassium levels. Use of L-arginine has been associated with hyperkalemia in some patients. Theoretically, concomitant use of ARBs with L-arginine may increases the risk of hyperkalemia.
Anticoagulant/Antiplatelet Drugs
Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Preliminary research suggests that L-arginine infusions reduce platelet aggregation in humans. The clinical significance of this effect is unclear.
Antidiabetes Drugs
Theoretically, concomitant use of L-arginine might have additive effects with antidiabetes drugs.
Preliminary clinical research shows that L-arginine decreases blood glucose levels in patients with type 2 diabetes.
Antihypertensive Drugs
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
L-arginine increases nitric oxide, which causes vasodilation. Clinical evidence shows that L-arginine can reduce blood pressure in some individuals with hypertension. Furthermore, combining L-arginine with some antihypertensive drugs seems to have additive vasodilating and blood pressure-lowering effects.
Isoproterenol (Isuprel)
Theoretically, concurrent use of isoproterenol and L-arginine might result in additive effects and hypotension.
Preliminary clinical evidence suggests that L-arginine enhances isoproterenol-induced vasodilation in patients with essential hypertension or a family history of essential hypertension.
Potassium-Sparing Diuretics
Theoretically concomitant use of potassium-sparing diuretics with L-arginine may increases the risk of hyperkalemia.
Potassium-sparing diuretics can increase potassium levels. Use of L-arginine has been associated with hyperkalemia in some patients.
Sildenafil (Viagra)
Theoretically, concurrent use of sildenafil and L-arginine might increase the risk for hypotension.
In vivo, concurrent use of L-arginine and sildenafil has resulted in increased vasodilation. Theoretically, concurrent use might have additive vasodilatory and hypotensive effects. However, in studies evaluating the combined use of L-arginine and sildenafil for erectile dysfunction, hypotension was not reported.
Testosterone
Theoretically, concomitant use of L-arginine and testosterone might have additive effects.
In clinical research, L-arginine increases the level of testosterone in male patients with erectile dysfunction. The clinical significance of this finding is unclear.
Brand information
Manufacturer and brand details for L-Arginine, from the product label.
New Sun
See all New Sun products- Name
- New Sun, Inc.
- City
- Hendersonville
- State
- NC
- ZipCode
- 28792
- Phone Number
- (800) 544-0777
- Web Address
- www.mynewsun.com
L-Arginine by New Sun: Common Questions
Does L-Arginine by New Sun interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What does L-arginine do in this supplement?
What are the most common side effects I might notice?
Is L-arginine safe to take during pregnancy?
Is L-arginine safe while breastfeeding?
Can I take this on my own, or do I need a doctor's approval?
What are the inactive ingredients in this capsule?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if L-Arginine is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind L-Arginine’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
L-Arginine's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 66 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
L-arginine 66 references
- Sapienza MA, Kharitonov SA, Horvath I, et al. Effect of inhaled L-arginine on exhaled nitric oxide in normal and asthmatic subjects. Thorax 1998;53:172-5.
- Clarkson P, Adams MR, Powe AJ, et al. Oral L-arginine improves endothelium-dependent dilation in hypercholesterolemic young adults. J Clin Invest 1996;97:1989-94. PubMed
- Tenenbaum A, Fisman EZ, Motro M. L-arginine: Rediscovery in progress. Cardiology 1998;90:153-9.
- Brittenden J, Park KGM, Heys SD, et al. L-Arginine stimulates host defenses in patients with breast cancer. Surgery 1994;115:205-12.
- Korting GE, Smith SD, Wheeler MA, et al. A randomized double-blind trial of oral L-arginine for treatment of interstitial cystitis. J Urol 1999;161:558-65. DOI
- Rector TS, Bank AJ, Mullen KA, et al. Randomized, double-blind, placebo-controlled study of supplemental oral L-arginine in patients with heart failure. Circulation 1996;93:2135-41.
- Siani A, Pagano E, Iacone R, et al. Blood pressure and metabolic changes during dietary L-arginine supplementation in humans. Am J Hypertens 2000;13:547-51. PubMed
- Cheng JW, Balwin SN. L-arginine in the management of cardiovascular diseases. Ann Pharmacother 2001;35:755-64. PubMed
- Wallace AW, Tom WL. Interaction of L-arginine and phosphodiesterase inhibitors in vasodilation of the porcine internal mammary artery. Anesth Analg 2000;90:840-6. DOI
- Huynh NT, Tayek JA. Oral arginine reduces systemic blood pressure in type 2 diabetes: its potential role in nitric oxide generation. J Am Coll Nutr 2002;21:422-7.. PubMed
- Staff AC, Berge L, Haugen G, et al. Dietary supplementation with L-arginine or placebo in women with pre-eclampsia. Acta Obstet Gynecol Scand 2004;83:103-7.
- Resnick DJ, Softness B, Murphy AR, et al. Case report of an anaphylactoid reaction to arginine. Ann Allergy Asthma Immunol 2002;88:67-8. PubMed
- Anon. Arginine hydrochloride injection (marketed as R-Gene 10). FDA Drug Safety Newsletter 2009;2(2):16-18. Available at: www.fda.gov/Drugs/DrugSafety/DrugSafetyNewsletter/default.htm.
- Higashi Y, Oshima T, Sasaki S, et. al. Angiotensin-converting enzyme inhibition, but not calcium antagonism, improves a response of the renal vasculature to L-arginine in patients with essential hypertension. Hypertension. 1998 Jul;32(1):16-24.
- Facchinetti, F., Longo, M., Piccinini, F., Neri, I., and Volpe, A. L-arginine infusion reduces blood pressure in preeclamptic women through nitric oxide release. J Soc Gynecol.Investig. 1999;6(4):202-207. DOI
- de Gouw, H. W., Verbruggen, M. B., Twiss, I. M., and Sterk, P. J. Effect of oral L-arginine on airway hyperresponsiveness to histamine in asthma. Thorax 1999;54(11):1033-1035. PubMed
- Komers, R., Komersova, K., Kazdova, L., Ruzickova, J., and Pelikanova, T. Effect of ACE inhibition and angiotensin AT1 receptor blockade on renal and blood pressure response to L-arginine in humans. J Hypertens. 2000;18(1):51-59. PubMed
- Cartledge, J. J., Davies, A. M., and Eardley, I. A randomized double-blind placebo-controlled crossover trial of the efficacy of L-arginine in the treatment of interstitial cystitis. BJU.Int. 2000;85(4):421-426.
- Sozykin, A. V., Noeva, E. A., Balakhonova, T. V., Pogorelova, O. A., and Men'shikov, M. I. [Effect of L-arginine on platelet aggregation, endothelial function adn exercise tolerance in patients with stable angina pectoris]. Ter.Arkh. 2000;72(8):24-27.
- Nagaya, N., Uematsu, M., Oya, H., Sato, N., Sakamaki, F., Kyotani, S., Ueno, K., Nakanishi, N., Yamagishi, M., and Miyatake, K. Short-term oral administration of L-arginine improves hemodynamics and exercise capacity in patients with precapillary pulmona
- Stokes, G. S., Barin, E. S., Gilfillan, K. L., and Kaesemeyer, W. H. Interactions of L-arginine, isosorbide mononitrate, and angiotensin II inhibitors on arterial pulse wave. Am J Hypertens. 2003;16(9 Pt 1):719-724.
- Park, K. G., Heys, S. D., Blessing, K., Kelly, P., McNurlan, M. A., Eremin, O., and Garlick, P. J. Stimulation of human breast cancers by dietary L-arginine. Clin.Sci.(Lond) 1992;82(4):413-417.
- Palloshi, A., Fragasso, G., Piatti, P., Monti, L. D., Setola, E., Valsecchi, G., Galluccio, E., Chierchia, S. L., and Margonato, A. Effect of oral L-arginine on blood pressure and symptoms and endothelial function in patients with systemic hypertension,
- Schlaich, M. P., Ahlers, B. A., Parnell, M. M., and Kaye, D. M. beta-Adrenoceptor-mediated, nitric-oxide-dependent vasodilatation is abnormal in early hypertension: restoration by L-arginine. J Hypertens. 2004;22(10):1917-1925. PubMed
- Neri, I., Blasi, I., and Facchinetti, F. Effects of acute L-arginine infusion on non-stress test in hypertensive pregnant women. J Matern.Fetal Neonatal Med. 2004;16(1):23-26. PubMed
- Rytlewski, K., Olszanecki, R., Korbut, R., and Zdebski, Z. Effects of prolonged oral supplementation with l-arginine on blood pressure and nitric oxide synthesis in preeclampsia. Eur.J Clin.Invest 2005;35(1):32-37.
- Mansoor, J. K., Morrissey, B. M., Walby, W. F., Yoneda, K. Y., Juarez, M., Kajekar, R., Severinghaus, J. W., Eldridge, M. W., and Schelegle, E. S. L-arginine supplementation enhances exhaled NO, breath condensate VEGF, and headache at 4,342 m. High Alt.M
- Neri, I., Jasonni, V. M., Gori, G. F., Blasi, I., and Facchinetti, F. Effect of L-arginine on blood pressure in pregnancy-induced hypertension: a randomized placebo-controlled trial. J Matern.Fetal Neonatal Med. 2006;19(5):277-281.
- Lucotti, P., Setola, E., Monti, L. D., Galluccio, E., Costa, S., Sandoli, E. P., Fermo, I., Rabaiotti, G., Gatti, R., and Piatti, P. Beneficial effects of a long-term oral L-arginine treatment added to a hypocaloric diet and exercise training program in
- Savoye, G., Jemaa, Y., Mosni, G., Savoye-Collet, C., Morcamp, P., Dechelotte, P., Bouin, M., Denis, P., and Ducrotte, P. Effects of intragastric L-arginine administration on proximal stomach tone under basal conditions and after an intragastric diet. Dig PubMed
- Facchinetti, F., Saade, G. R., Neri, I., Pizzi, C., Longo, M., and Volpe, A. L-arginine supplementation in patients with gestational hypertension: a pilot study. Hypertens.Pregnancy. 2007;26(1):121-130. PubMed
- Jovanovic, A., Gerrard, J., and Taylor, R. The second-meal phenomenon in type 2 diabetes. Diabetes Care 2009;32(7):1199-1201. PubMed
- Fontanive P, Saponati G, Iurato A, et al. Effects of L-arginine on the Minnesota Living with Heart Failure Questionnaire quality-of-life score in patients with chronic systolic heart failure. Med.Sci.Monit. 2009;15:CR606-11.
- Doutreleau, S., Rouyer, O., Di, Marco P., Lonsdorfer, E., Richard, R., Piquard, F., and Geny, B. L-arginine supplementation improves exercise capacity after a heart transplant. Am J Clin.Nutr. 2010;91(5):1261-1267. PubMed
- Ast, J., Jablecka, A., Bogdanski, P., Smolarek, I., Krauss, H., and Chmara, E. Evaluation of the antihypertensive effect of L-arginine supplementation in patients with mild hypertension assessed with ambulatory blood pressure monitoring. Med.Sci.Monit. 2
- Saleh, A. I., Abdel Maksoud, S. M., El-Maraghy, S. A., and Gad, M. Z. Protective effect of L-arginine in experimentally induced myocardial ischemia: comparison with aspirin. J Cardiovasc.Pharmacol.Ther 2011;16(1):53-62. PubMed
- Dong, J. Y., Qin, L. Q., Zhang, Z., Zhao, Y., Wang, J., Arigoni, F., and Zhang, W. Effect of oral L-arginine supplementation on blood pressure: a meta-analysis of randomized, double-blind, placebo-controlled trials. Am.Heart J 2011;162(6):959-965. PubMed
- Hertz, P. and Richardson, J. A. Arginine-induced hyperkalemia in renal failure patients. Arch.Intern.Med. 1972;130(5):778-780. DOI
- Bushinsky, D. A. and Gennari, F. J. Life-threatening hyperkalemia induced by arginine. Ann.Intern.Med. 1978;89(5 Pt 1):632-634. PubMed
- Adams, M. R., Forsyth, C. J., Jessup, W., Robinson, J., and Celermajer, D. S. Oral L-arginine inhibits platelet aggregation but does not enhance endothelium-dependent dilation in healthy young men. J Am Coll.Cardiol 1995;26(4):1054-1061. PubMed
- Dell'Omo, G., Catapano, G., Ebel, M., Gazzano, A., Ducci, M., Del, Chicca M., Clerico, A., and Pedrinelli, R. [Pressor, renal and endocrine effects of systemic infusion of L-arginine in hypertensive patients]. Ann.Ital Med.Int. 1995;10(2):107-112.
- Higashi, Y., Oshima, T., Ozono, R., Watanabe, M., Matsuura, H., and Kajiyama, G. Effects of L-arginine infusion on renal hemodynamics in patients with mild essential hypertension. Hypertension 1995;25(4 Pt 2):898-902.
- Bode-Boger, S. M., Boger, R. H., Creutzig, A., Tsikas, D., Gutzki, F. M., Alexander, K., and Frolich, J. C. L-arginine infusion decreases peripheral arterial resistance and inhibits platelet aggregation in healthy subjects. Clin.Sci.(Lond) 1994;87(3):303
- Marfella, R., Acampora, R., Verrazzo, G., Ziccardi, P., De, Rosa N., Giunta, R., and Giugliano, D. Metformin improves hemodynamic and rheological responses to L-arginine in NIDDM patients. Diabetes Care 1996;19(9):934-939. PubMed
- Giugliano, D., Marfella, R., Verrazzo, G., Acampora, R., Coppola, L., Cozzolino, D., and D'Onofrio, F. The vascular effects of L-Arginine in humans. The role of endogenous insulin. J Clin.Invest 2-1-1997;99(3):433-438. PubMed
- Khan, F., Litchfield, S. J., McLaren, M., Veale, D. J., Littleford, R. C., and Belch, J. J. Oral L-arginine supplementation and cutaneous vascular responses in patients with primary Raynaud's phenomenon. Arthritis Rheum. 1997;40(2):352-357.
- Wolf, A., Zalpour, C., Theilmeier, G., Wang, B. Y., Ma, A., Anderson, B., Tsao, P. S., and Cooke, J. P. Dietary L-arginine supplementation normalizes platelet aggregation in hypercholesterolemic humans. J Am Coll.Cardiol 3-1-1997;29(3):479-485. PubMed
- Schellong, S. M., Boger, R. H., Burchert, W., Bode-Boger, S. M., Galland, A., Frolich, J. C., Hundeshagen, H., and Alexander, K. Dose-related effect of intravenous L-arginine on muscular blood flow of the calf in patients with peripheral vascular disease
- Marietta, M., Facchinetti, F., Neri, I., Piccinini, F., Volpe, A., and Torelli, G. L-arginine infusion decreases platelet aggregation through an intraplatelet nitric oxide release. Thromb.Res 10-15-1997;88(2):229-235. PubMed
- Bauer JD, Isenring E, Waterhouse M. The effectiveness of a specialised oral nutrition supplement on outcomes in patients with chronic wounds: a pragmatic randomised study. J Hum Nutr Diet. 2013 Oct;26(5):452-8. PubMed
- Vadillo-Ortega F, Perichart-Perera O, Espino S, et al. Effect of supplementation during pregnancy with L-arginine and antioxidant vitamins in medical food on pre-eclampsia in high risk population: randomised controlled trial. BMJ. 2011 May 19;342:d2901. PubMed
- Camarena Pulido EE, García Benavides L, Panduro Barón JG, et al. Efficacy of L-arginine for preventing preeclampsia in high-risk pregnancies: A double-blind, randomized, clinical trial. Hypertens Pregnancy. 2016;35(2):217-25. PubMed
- Yokota T, Hamauchi S, Yoshida Y, et al. A phase II study of HMB/Arg/Gln against oral mucositis induced by chemoradiotherapy for patients with head and neck cancer. Support Care Cancer. 2018;26(9):3241-3248. PubMed
- Binet Q, Dufour I, Agneessens E, et al. The second case of a young man with L-arginine-induced acute pancreatitis. Clin J Gastroenterol. 2018;11(5):424-427. PubMed
- El Taieb M, Hegazy E, Ibrahim A. Daily oral l-arginine plus tadalafil in diabetic patients with erectile dysfunction: A double-blinded, randomized, controlled clinical trial. J Sex Med. 2019;16(9):1390-1397.
- Gallo L, Pecoraro S, Sarnacchiaro P, Silvani M, Antonini G. The daily therapy with L-arginine 2,500 mg and tadalafil 5 mg in combination and in monotherapy for the treatment of erectile dysfunction: A prospective, randomized multicentre study. Sex Med. 20 PubMed
- de la Parra PR, González-Cruz MÁ, Ferreiro-Marin A, Casaubón-Garcín PR. L-arginine-induced esophagitis, report of six cases. Bol Med Hosp Infant Mex. 2020;77(1):38-41. PubMed
- El-Wakeel LM, Fouad FA, Saleem MD, Saber-Khalaf M. Efficacy and tolerability of sildenafil/l-arginine combination relative to sildenafil alone in patients with organic erectile dysfunction. Andrology. 2020;8(1):143-147.
- Abu El-Hamd M, Hegazy EM. Comparison of the clinical efficacy of daily use of L-arginine, tadalafil and combined L-arginine with tadalafil in the treatment of elderly patients with erectile dysfunction. Andrologia. 2020;52(7):e13640. PubMed
- Liao SY, Showalter MR, Linderholm AL, et al. l-Arginine supplementation in severe asthma. JCI Insight. 2020;5(13):e137777. PubMed
- Yousefi Rad E, Nazarian B, Saboori S, Falahi E, Hekmatdoost A. Effects of l-arginine supplementation on glycemic profile: Evidence from a systematic review and meta-analysis of clinical trials. J Integr Med. 2020;18(4):284-291. PubMed
- Xu Z, Liu C, Liu S, Zhou Z. Comparison of efficacy and safety of daily oral L-arginine and PDE5Is alone or combination in treating erectile dysfunction: A systematic review and meta-analysis of randomised controlled trials. Andrologia. 2021:e14007. PubMed
- Goto E. Effects of prenatal oral L-arginine on birth outcomes: a meta-analysis. Sci Rep 2021;11(1):22748. PubMed
- Monari F, Menichini D, Pignatti L, Basile L, Facchinetti F, Neri I. Effect of L-arginine supplementation in pregnant women with chronic hypertension and previous placenta vascular disorders receiving Aspirin prophylaxis: a randomized control trial. Minerv PubMed
- Li H, Liu Q, Zou Z, et al. L-arginine supplementation to mitigate cardiovascular effects of walking outside in the context of traffic-related air pollution in participants with elevated blood pressure: A randomized, double-blind, placebo-controlled trial. PubMed
- Shiraseb F, Asbaghi O, Bagheri R, Wong A, Figueroa A, Mirzaei K. The Effect of L-arginine Supplementation On Blood Pressure in Adults: A Systematic Review and Dose-response Meta-analysis of Randomized Clinical Trials. Adv Nutr 2021. PubMed
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC