Vigor Now Max Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Vigor Now Max 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
Vigor Now Max is a dietary supplement by Justified Laboratories with 1 active ingredient. Its ingredients are commonly taken for high blood pressure, erectile dysfunction, athletic performance.Based on those ingredients, 452 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are L-Arginine Blend. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Vigor Now Max by Justified Laboratories
Ask about any prescription or over-the-counter medication and we check it for interactions with Vigor Now Max by Justified Laboratories — 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
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HelloPharmacist Scorecard of Vigor Now Max by Justified Laboratories
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
Low disclosure
Vigor Now Max contains 5 active ingredients, most of them amino acid compounds tied to athletic performance and recovery. L-arginine is the primary one — it's an amino acid your body uses to make nitric oxide, a molecule that relaxes blood vessel walls.
The product also includes Arginine Alpha-Ketoglutarate, an arginine compound; Ornithine Alpha-Ketoglutarate; and Glutamine Alpha Ketoglutarate, which is glutamine paired with an organic acid. The capsules also hold inactive ingredients: silica, magnesium stearate, and gelatin.
Does it work?
Moderate evidence
The evidence for this product's ingredients is mixed. Ornithine Alpha-Ketoglutarate is possibly effective for athletic performance, but we hold insufficient evidence to rate it for dry skin or insomnia.
Glutamine Alpha Ketoglutarate is rated effective for sickle cell disease and possibly effective for HIV/AIDS-related wasting, postoperative recovery, and critical illness — though those aren't the uses this product is marketed for. L-arginine itself has no effectiveness ratings in our data for general athletic or sexual performance.
The evidence supporting the product's likely intended use isn't established in the information we hold.
How safe is it?
Well-documented data
L-arginine is generally well tolerated short-term, but the safety data notes it can lower blood pressure and may not be safe for everyone — use only under medical supervision. Common side effects from oral L-arginine include abdominal pain, bloating, nausea, diarrhea, headache, and insomnia.
Glutamine is generally well tolerated in healthy adults, but people with kidney or liver disease should use it only under medical supervision; common side effects are belching, bloating, constipation, diarrhea, and nausea. Ornithine Alpha-Ketoglutarate is generally well tolerated short-term, though long-term safety isn't well studied.
The product contains no pregnancy or breastfeeding safety data for L-arginine itself. For Ornithine, the data advises against use during pregnancy and breastfeeding.
For Glutamine, there's insufficient data — breastfeeding should happen only if your doctor recommends it.
Meds to double-check
Moderate interaction found
Before you take Vigor Now Max, double-check with your pharmacist if you're on blood pressure medications (particularly ACE inhibitors or ARBs), blood thinners, potassium-sparing diuretics, diabetes medications, anticonvulsants, or sildenafil (Viagra). L-arginine can amplify the blood pressure-lowering effect of antihypertensive drugs and increase bleeding risk with anticoagulants.
Glutamine may interfere with seizure control. Your pharmacist can tell you whether it's safe for your specific medications.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This product is designed around amino acids tied to athletic performance, but the evidence supporting that benefit isn't established in our data. More importantly, if you take blood pressure medications, blood thinners, diabetes drugs, or anticonvulsants, you need to check your exact list with a pharmacist before starting it — L-arginine and glutamine both interact with common medications.
Talk to your pharmacist or doctor first, especially if you have kidney or liver disease or manage hypertension.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Aug 22, 2024.
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 Vigor Now Max, straight from the product label.
| Brand | Justified Laboratories |
|---|---|
| Barcode (UPC) | 810077538333 |
| Net contents | 60 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Aug 22, 2024 |
| DSLD ID | 316222 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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 Vigor Now Max by Justified Laboratories, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Arginine | 0 NP | -- |
| Arginine Alpha-Ketoglutarate | 0 NP | -- |
| L-Arginine Blend | 1600 mg | -- |
| Arginine-Ketoisocaproate | 0 NP | -- |
| Ornithine Alpha-Ketoglutarate | 0 NP | -- |
| Glutamine Alpha Ketoglutarate | 0 NP | -- |
Other ingredients: Silica, Magnesium Stearate, Gelatin
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
Suggested Use: As a dietary supplement, take 1 before and after workout and do not exceed 4 a day.
Precautions
Caution: Do not exceed recommended dose. Do not use if safety seal is damaged or missing.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement. Keep out of reach of children.
Storage
Store at room temperature.
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.
Formulation
Maximum performance Strength Endurance Recovery time
FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Vigor Now Max by Justified Laboratories 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 Vigor Now Max by Justified Laboratories
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.
L-Arginine Blend
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 Blend monograph & interactions- › L-Arginine
- › Arginine Alpha-Ketoglutarate
- › Arginine-Ketoisocaproate
- › Ornithine Alpha-Ketoglutarate
- › Glutamine Alpha Ketoglutarate
Other (inactive) ingredients: Silica, Magnesium Stearate, Gelatin. These complete the product’s ingredient list but are not active constituents.
Vigor Now Max by Justified Laboratories Drug Interactions
HelloPharmacist Interaction Report
Vigor Now Max by Justified Laboratories contains ingredients that interact with several medication types, and the most serious concern involves blood pressure.
L-arginine, one of the active ingredients, can lower blood pressure on its own — combining it with blood pressure medications (antihypertensives) including ACE inhibitors and ARBs may push your pressure too low (Moderate severity).
Read the full breakdown — every affected drug type, severity by severity
L-arginine also has Moderate interactions with blood thinners (anticoagulants and antiplatelet drugs), potassium-sparing diuretics (which raise potassium levels), diabetes medications, and sildenafil (Viagra). Glutamine Alpha Ketoglutarate carries a Moderate interaction with anticonvulsants.
Altogether, these interactions span 449 individual medications.
We couldn't check two other arginine-based ingredients in this product — Arginine Alpha-Ketoglutarate and Arginine-Ketoisocaproate — because we hold no interaction data for them. Before you start Vigor Now Max, run your exact medications through the search tool below.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Vigor Now Max?
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 Vigor Now Max interact with 452 drugs. Click any drug to see the details.
1 of the 1 ingredient in Vigor Now Max interact with drugs. Each result below shows which ingredient is responsible. L-Arginine Blend
BisoprololZebeta
How Bisoprolol interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Bisoprolol interactionBisoprolol, HydrochlorothiazideZiac
How Bisoprolol, Hydrochlorothiazide interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Bisoprolol, Hydrochlorothiazide interactionBivalirudinAngiomax, Angiomax Rtu, Angiox
How Bivalirudin interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAnticoagulant/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 Blend + Bivalirudin interactionBosentanTracleer
How Bosentan interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Bosentan interactionBromfenac SodiumBromsite, Prolensa
How Bromfenac Sodium interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAnticoagulant/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 Blend + Bromfenac Sodium interactionBumetanideBurinex
How Bumetanide interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Bumetanide interactionBumetanide (iv)Bumex
How Bumetanide (iv) interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Bumetanide (iv) interactionBumetanide (oral)Bumex
How Bumetanide (oral) interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Bumetanide (oral) interactionBumetanide, PotassiumBurinex K
How Bumetanide, Potassium interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendPotassium-sparing Diuretics Moderate
Interaction Summary
Theoretically concomitant use of potassium-sparing diuretics with L-arginine may increases the risk of hyperkalemia.
Read the full L-arginine Blend + Bumetanide, Potassium interactionButalbital, Phenobarbital, SecobarbitalTribarb
How Butalbital, Phenobarbital, Secobarbital interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
Glutamine Alpha KetoglutarateAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full Glutamine Alpha Ketoglutarate + Butalbital, Phenobarbital, Secobarbital interactionCabliviCablivi
How Cablivi interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAnticoagulant/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 Blend + Cablivi interactionCanagliflozinInvokana
How Canagliflozin interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine might have additive effects with antidiabetes drugs.
Read the full L-arginine Blend + Canagliflozin interactionCanagliflozin, MetforminInvokamet
How Canagliflozin, Metformin interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine might have additive effects with antidiabetes drugs.
Read the full L-arginine Blend + Canagliflozin, Metformin interactionCanagliflozin, Metformin HydrochlorideInvokamet XR
How Canagliflozin, Metformin Hydrochloride interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine might have additive effects with antidiabetes drugs.
Read the full L-arginine Blend + Canagliflozin, Metformin Hydrochloride interactionCandesartan CilexetilAmias, Atacand
How Candesartan Cilexetil interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAngiotensin Receptor Blockers (arbs), Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and ARBs may increase the risk of hypotension and hyperkalemia.
Read the full L-arginine Blend + Candesartan Cilexetil interactionCandesartan Cilexetil, HydrochlorothiazideAtacand HCT
How Candesartan Cilexetil, Hydrochlorothiazide interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs, Angiotensin Receptor Blockers (arbs) Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Candesartan Cilexetil, Hydrochlorothiazide interactionCangrelorKengreal
How Cangrelor interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAnticoagulant/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 Blend + Cangrelor interactionCaptoprilAcepril, Capoten
How Captopril interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAce Inhibitors (aceis), Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and ACE inhibitors may increase the risk for hypotension and hyperkalemia.
Read the full L-arginine Blend + Captopril interactionCaptopril, HydrochlorothiazideAcezide, Capozide
How Captopril, Hydrochlorothiazide interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs, Ace Inhibitors (aceis) Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Captopril, Hydrochlorothiazide interactionCarbamazepineCarbatrol, Carnexiv, Equetro, Tegretol, Tegretol XR
How Carbamazepine interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
Glutamine Alpha KetoglutarateAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full Glutamine Alpha Ketoglutarate + Carbamazepine interactionCarteololCartrol, Ocupress
How Carteolol interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Carteolol interactionCarvedilolCoreg, Coreg CR
How Carvedilol interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Carvedilol interactionCeliprololCelicard
How Celiprolol interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Celiprolol interactionCenobamateXcopri
How Cenobamate interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
Glutamine Alpha KetoglutarateAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full Glutamine Alpha Ketoglutarate + Cenobamate interactionChlorothiazideDiuril
How Chlorothiazide interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Chlorothiazide interactionChlorothiazide, MethyldopaAldochlor, Aldoclor 150, Aldoclor 250
How Chlorothiazide, Methyldopa interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Chlorothiazide, Methyldopa interactionChlorothiazide, ReserpineDiupres
How Chlorothiazide, Reserpine interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Chlorothiazide, Reserpine interactionChlorpropamideChlorpropam, Diabinese
How Chlorpropamide interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine might have additive effects with antidiabetes drugs.
Read the full L-arginine Blend + Chlorpropamide interactionChlorthalidoneHygroton, Thalitone
How Chlorthalidone interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Chlorthalidone interactionChlorthalidone, ClonidineClorpres, Combipres
How Chlorthalidone, Clonidine interacts with Vigor Now Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Chlorthalidone, Clonidine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Vigor Now Max 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 Blend
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 Vigor Now Max, from the product label.
Justified Laboratories
See all Justified Laboratories products- Name
- Justified Laboratories
- City
- Arlington
- State
- TX
- ZipCode
- 76011
- Phone Number
- 1-888-645-9404
- Web Address
- www.justifiedlaboratories.com
Vigor Now Max by Justified Laboratories: Common Questions
Does Vigor Now Max by Justified Laboratories interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Will this help with athletic performance?
What are the most common side effects I might feel?
Can I take this if I have kidney or liver disease?
Is it safe during pregnancy or breastfeeding?
Why does the interaction list include so many medications?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Vigor Now Max 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 Vigor Now Max’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
L-arginine
Interacts with 403 drugsL-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 blood pressure, erectile dysfunction, and...
Read the full L-arginine monograph → Herb & supplement monographOrnithine
Ornithine is a non-essential amino acid your body makes naturally as part of the urea cycle, which helps remove ammonia. It is sold as a supplement for fatigue, exercise recovery, and sleep,...
Read the full Ornithine monograph → Herb & supplement monographGlutamine
Interacts with 50 drugsGlutamine is the most abundant amino acid in the body and is usually made in your muscles. A prescription form is FDA-approved to help reduce sickle cell disease complications, but for most...
Read the full Glutamine monograph →Sources & How We Checked
Vigor Now Max'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 78 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.
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