Styphdxfirol Max Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Styphdxfirol 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
Styphdxfirol 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 Styphdxfirol Max by Justified Laboratories
Ask about any prescription or over-the-counter medication and we check it for interactions with Styphdxfirol 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 Styphdxfirol 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
Styphdxfirol Max contains 5 ingredients. The active ones are L-arginine, arginine alpha-ketoglutarate, L-arginine blend, glutamine alpha-ketoglutarate, arginine ketoisocaproate, and ornithine alpha-ketoglutarate — amino acids and amino acid derivatives that your body uses for muscle, blood vessel function, and immune health.
The inactive ingredients are silica, magnesium stearate, and gelatin (the capsule material).
Does it work?
Moderate evidence
The data we hold shows glutamine is effective for sickle cell disease and possibly effective for HIV/AIDS-related wasting, postoperative recovery, and critical illness from trauma. Ornithine is possibly effective for athletic performance; evidence for its use in dry skin and insomnia is insufficient to rate.
For L-arginine, arginine alpha-ketoglutarate, arginine ketoisocaproate, and the L-arginine blend, no effectiveness ratings are on file.
How safe is it?
Well-documented data
L-arginine is generally well tolerated short-term but can lower blood pressure and isn't safe for everyone — use only under medical supervision. Common side effects include abdominal pain, bloating, nausea, diarrhea, headache, insomnia, and flushing.
Glutamine is also generally well tolerated in healthy adults, though people with kidney or liver disease need medical oversight. Its most common side effects are belching, bloating, constipation, diarrhea, nausea, and headache.
A small number of people taking glutamine have reported dizziness or, rarely, mood changes (mania or hypomania). Ornithine is generally well tolerated short-term, but long-term safety isn't well studied.
No pregnancy or breastfeeding data is on file for L-arginine, arginine alpha-ketoglutarate, or arginine ketoisocaproate. Glutamine is rated likely safe in pregnancy and lactation.
Ornithine should be avoided in pregnancy and breastfeeding due to insufficient safety data.
Meds to double-check
Moderate interaction found
Before taking Styphdxfirol Max, check with your pharmacist if you're on blood pressure medications, ACE inhibitors, ARBs, potassium-sparing diuretics, blood thinners or antiplatelet drugs, diabetes medications, anticonvulsants, isoproterenol, or sildenafil (Viagra). All of these have documented moderate interactions with ingredients in this product.
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 for people interested in amino acid support for muscle and recovery, but it's not a casual pick. If you're on blood pressure medication, heart drugs, blood thinners, diabetes medication, or anticonvulsants, you need to check with your pharmacist or doctor first — the interactions are real.
Even if you're healthy, L-arginine requires medical oversight.
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 Oct 24, 2022.
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 Styphdxfirol Max, straight from the product label.
| Brand | Justified Laboratories |
|---|---|
| Barcode (UPC) | 810077533383 |
| Net contents | 60 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Oct 24, 2022 |
| DSLD ID | 276806 |
| 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 Styphdxfirol 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 | -- |
| Glutamine Alpha-Ketoglutarate | 0 NP | -- |
| Arginine Ketoisocaproate | 0 NP | -- |
| Ornithine 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.
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 the reach of children.
Do not use if safety seal is damaged or missing.
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.
Dietary Supplement
Formulation
All natural health product Strength Endurance Recovery time
Seals/Symbols
GMP Good Manufacturing Practice
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Styphdxfirol 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 Styphdxfirol 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
- › Glutamine Alpha-Ketoglutarate
- › Arginine Ketoisocaproate
- › Ornithine Alpha-Ketoglutarate
Other (inactive) ingredients: Silica, Magnesium Stearate, Gelatin. These complete the product’s ingredient list but are not active constituents.
Styphdxfirol Max by Justified Laboratories Drug Interactions
HelloPharmacist Interaction Report
Styphdxfirol Max by Justified Laboratories contains L-arginine, which has documented interactions with several medication types.
The most serious concern is with blood pressure medications (antihypertensives), ACE inhibitors, and ARBs — L-arginine can boost the blood pressure-lowering effect of these drugs and may cause dangerously low blood pressure. It also raises potassium levels, which compounds the effect of potassium-sparing diuretics and ACE inhibitors or ARBs, increasing the risk of high potassium (hyperkalemia).
Read the full breakdown — every affected drug type, severity by severity
L-arginine may increase bleeding risk when combined with blood thinners or antiplatelet drugs (like warfarin or aspirin), though the clinical importance of this isn't fully clear. It can also enhance the blood sugar-lowering effect of diabetes medications, raising the risk of low blood sugar.
Additionally, it may add to the blood pressure-lowering effects of isoproterenol and sildenafil (Viagra).
The product also contains glutamine, which theoretically may work against anticonvulsant medications by counteracting their effect on the brain — though this hasn't yet been reported in humans. We could not check Arginine Alpha-Ketoglutarate and Arginine Ketoisocaproate; no interaction data is on file for them.
Altogether, these interactions span 449 individual medications. Use the medication checker on this page to look up your exact drugs before starting.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Styphdxfirol 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 Styphdxfirol Max interact with 452 drugs. Click any drug to see the details.
1 of the 1 ingredient in Styphdxfirol Max interact with drugs. Each result below shows which ingredient is responsible. L-Arginine Blend
AbciximabReoPro
How Abciximab interacts with Styphdxfirol 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 + Abciximab interactionAbrocitinibCibinqo
How Abrocitinib interacts with Styphdxfirol 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 + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Styphdxfirol 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 + Acarbose interactionAcebutololRhotral, Sectral
How Acebutolol interacts with Styphdxfirol 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 + Acebutolol interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Styphdxfirol 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 + Acenocoumarol interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Styphdxfirol 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 + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Styphdxfirol 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 + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, IbuprofenCombogesic
How Acetaminophen, Ibuprofen interacts with Styphdxfirol 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 + Acetaminophen, Ibuprofen interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Styphdxfirol Max — through 2 ingredients. 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 + Acetazolamide interactionGlutamine Alpha-ketoglutarateAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full Glutamine Alpha-ketoglutarate + Acetazolamide interactionAcetohexamideDymelor
How Acetohexamide interacts with Styphdxfirol 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 + Acetohexamide interactionAcetylsalicylic AcidEntrophen
How Acetylsalicylic Acid interacts with Styphdxfirol 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 + Acetylsalicylic Acid interactionAlbiglutideTanzeum
How Albiglutide interacts with Styphdxfirol 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 + Albiglutide interactionAliskirenTekturna
How Aliskiren interacts with Styphdxfirol 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 + Aliskiren interactionAlogliptinNesina
How Alogliptin interacts with Styphdxfirol 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 + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Styphdxfirol 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 + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Styphdxfirol 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 + Alogliptin, Pioglitazone interactionAlteplase, TpaActilyse, Activase
How Alteplase, Tpa interacts with Styphdxfirol 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 + Alteplase, Tpa interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Styphdxfirol 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 + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with Styphdxfirol 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 + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAmbrisentanLetairis, Volibris
How Ambrisentan interacts with Styphdxfirol 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 + Ambrisentan interactionAmilorideAmilamont, Midamor
How Amiloride interacts with Styphdxfirol Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs, Potassium-sparing Diuretics Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Amiloride interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Styphdxfirol Max — through 1 ingredient. Tap an ingredient for the detail:
L-arginine BlendAntihypertensive Drugs, Potassium-sparing Diuretics Moderate
Interaction Summary
Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
Read the full L-arginine Blend + Amiloride, Hydrochlorothiazide interactionAminophylline, Amobarbital, EphedrineAmesec
How Aminophylline, Amobarbital, Ephedrine interacts with Styphdxfirol 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 + Aminophylline, Amobarbital, Ephedrine interactionAmlodipineNorliqva
How Amlodipine interacts with Styphdxfirol 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 + Amlodipine interactionAmlodipine BenzoateKaterzia
How Amlodipine Benzoate interacts with Styphdxfirol 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 + Amlodipine Benzoate interactionAmlodipine BesilateIstin
How Amlodipine Besilate interacts with Styphdxfirol 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 + Amlodipine Besilate interactionAmlodipine BesylateNorvasc
How Amlodipine Besylate interacts with Styphdxfirol 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 + Amlodipine Besylate interactionAmlodipine Besylate, BenazeprilLotrel
How Amlodipine Besylate, Benazepril interacts with Styphdxfirol 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 + Amlodipine Besylate, Benazepril interactionAmlodipine, CelecoxibConsensi
How Amlodipine, Celecoxib interacts with Styphdxfirol 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 + Amlodipine, Celecoxib interactionAmmonium ChlorideAmmonium Chloride
How Ammonium Chloride interacts with Styphdxfirol 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 + Ammonium Chloride interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Styphdxfirol 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 Styphdxfirol 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
Styphdxfirol Max by Justified Laboratories: Common Questions
Does Styphdxfirol Max by Justified Laboratories interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What is L-arginine supposed to do?
What about glutamine — what's it for?
Can I take this if I have asthma?
Is this safe during pregnancy?
What are the most common side effects?
Can I take this long-term?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Styphdxfirol 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 Styphdxfirol 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 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 → 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 →Sources & How We Checked
Styphdxfirol 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
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