Muscle Recovery & Support Ingredients & Drug Interactions
by GNC Mega Men
What is this page for?
First and foremost: checking Muscle Recovery & Support 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
Muscle Recovery & Support is a dietary supplement by GNC Mega Men with 3 active ingredients. Its ingredients are commonly taken for muscle recovery and sports performance, gut health and 'leaky gut', recovery from severe illness or injury.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, L-Glutamine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Muscle Recovery & Support by GNC Mega Men
Ask about any prescription or over-the-counter medication and we check it for interactions with Muscle Recovery & Support by GNC Mega Men — 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 Muscle Recovery & Support by GNC Mega Men
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 3 active ingredients. L-glutamine is an amino acid that your body uses during stress and illness—the data shows it's effective for sickle cell disease and possibly effective for recovery after surgery, critical illness, and HIV/AIDS-related wasting.
L-arginine is another amino acid involved in blood vessel function and nitric oxide production. The third active ingredient, palmitic acid monoethanolamide, we have no interaction or effectiveness data for.
The product also contains inactive ingredients (fillers and binders): cellulose, dicalcium phosphate, povidone, silica, stearic acid, and magnesium stearate.
Does it work?
Moderate evidence
L-glutamine is established as effective for sickle cell disease. It's rated possibly effective for recovery after surgery, critical illness (trauma), and HIV/AIDS-related wasting.
L-arginine has no effectiveness ratings in our data, so we can't speak to what it's intended to do in this formula. We have no effectiveness information for palmitic acid monoethanolamide.
How safe is it?
Well-documented data
L-glutamine is generally well tolerated, but the data advises caution for people with kidney or liver disease—use only under medical supervision. The most common side effects are gastrointestinal: belching, bloating, constipation, diarrhea, flatulence, gas pain, nausea, and vomiting.
Dizziness and headache have been reported. Rare cases of mood changes (mania or hypomania) have occurred in people with bipolar disorder taking glutamine supplements.
Avoid supplemental glutamine during pregnancy unless your doctor recommends it; it's rated likely safe during pregnancy, but avoid supplement doses while breastfeeding unless a clinician advises it. L-arginine is often well tolerated short-term but can lower blood pressure and isn't safe for everyone—use only under medical supervision.
Common oral side effects include abdominal pain, bloating, nausea, diarrhea, headache, insomnia, and facial flushing. When inhaled, it can worsen asthma symptoms, though oral use hasn't caused airway problems in studies.
We have no pregnancy or breastfeeding safety data on file for L-arginine, so talk with your doctor or pharmacist for personalized advice. No safety data is on file for palmitic acid monoethanolamide.
Meds to double-check
Moderate interaction found
Check before taking if you're on anticonvulsants (seizure medications), any blood pressure drugs (especially ACE inhibitors and ARBs), blood thinners or antiplatelet drugs (like warfarin or aspirin), diabetes medications, potassium-sparing diuretics (water pills), isoproterenol, or sildenafil (Viagra)—all are rated Moderate interactions with L-arginine. Also check if you take anticonvulsants, as L-glutamine may theoretically interfere with them.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
If you take blood pressure medication, ACE inhibitors, ARBs, blood thinners, diabetes drugs, potassium-sparing diuretics, seizure medications, or certain heart drugs, check your exact medications with the tool on this page before using this product. Those with kidney or liver disease should talk to their doctor first.
This isn't medical advice—your pharmacist can review your full medication list and let you know whether it's right for you.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Dec 23, 2016.
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 Muscle Recovery & Support, straight from the product label.
| Brand | GNC Mega Men |
|---|---|
| Net contents | 30 Pack(s) |
| Market status | On market |
| Date entered into DSLD | Dec 23, 2016 |
| DSLD ID | 67583 |
| Product type | Other Combinations |
| Supplement form | Other (e.g. Tea Bag) |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult Male (18-50 Years), Gluten Free, Dairy Free |
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 Muscle Recovery & Support by GNC Mega Men, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Glutamine | 500 mg | -- |
| L-Arginine | 500 mg | -- |
| Palmitic Acid Monoethanolamide | 50 mg | -- |
Other ingredients: Cellulose, Dicalcium Phosphate, Povidone, Silica, Stearic Acid, Magnesium Stearate
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.
General Statements
Conforms to USP <2091> for weight. Meets USP <2040> disintegration.
Actual size
Physician endorsed This product is endorsed by the GNC Medical Advisory Board. This team of esteemed physicians utilizes their extensive medical knowledge and experience to aid in the creation of GNC premium products, helping you achieve optimal health through comprehensive nutritional support so you can live your best life!
New
- Antioxidants - Performance & energy - Blood flow - Recovery
Achieve your daily nutritional goals with customized ingredients plus multivitamins that have more antioxidant power than ever, contain over 30 clinically studied ingredients - and are smaller and easier to swallow.
- Blood flow Has ingredients to enhance blood vessel dilation.
- Recovery Includes ingredients to support muscle recovery and provide a healthy response to inflammation.
Each pack contains: Muscle Recovery & Support
Precautions
Warning: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition.
Discontinue use two weeks prior to surgery.
Keep out of reach of children.
Formulation
No Artificial Flavors, no Wheat, Gluten free, no Dairy, Yeast free.
Storage
Store in a cool, dry place.
Seals/Symbols
GF Gluten free
Physician endorsed
FDA Statement of Identity
Dietary Supplement
Brand IP Statement(s)
Vitapak program with clinically studied multivitamin
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.
General
CODE 209121 BQG
Suggested/Recommended/Usage/Directions
Directions: As a dietary supplement, take the contents of one pack daily with food.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Muscle Recovery & Support by GNC Mega Men 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 Muscle Recovery & Support by GNC Mega Men
These are the 3 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 White Caplet(s) Dosage formOther (e.g. Tea Bag) Amounts shown are per serving.
Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.
L-Glutamine
Interacts with50 drugs
Glutamine 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 c...
L-Glutamine monograph & interactionsL-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 & interactionsPalmitic Acid Monoethanolamide
Other (inactive) ingredients: Cellulose, Dicalcium Phosphate, Povidone, Silica, Stearic Acid, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.
Muscle Recovery & Support by GNC Mega Men Drug Interactions
HelloPharmacist Interaction Report
GNC Mega Men Muscle Recovery & Support contains L-glutamine and L-arginine, both of which have documented interactions with medications.
Read the full breakdown — every affected drug type, severity by severity
L-glutamine may theoretically interfere with anticonvulsant medications (drugs used to prevent seizures). Glutamine is broken down into glutamate, an excitatory brain chemical that could work against how anticonvulsants function.
This interaction hasn't been reported in humans yet, but it's a theoretical Moderate concern.
L-arginine has more extensive documented interactions. It can increase nitric oxide, which widens blood vessels and lowers blood pressure—meaning it may add to the effects of blood pressure medications (antihypertensives), ACE inhibitors, and ARBs, raising the risk of blood pressure dropping too low.
It may also increase bleeding risk when combined with blood thinners or antiplatelet drugs (such as warfarin or aspirin), potentially lower blood sugar when taken with diabetes medications, and raise potassium levels dangerously when combined with potassium-sparing diuretics or ACE inhibitors and ARBs. L-arginine may also increase the risk of low blood pressure (hypotension) when used with the heart medication isoproterenol or erectile dysfunction drugs like sildenafil.
All of these L-arginine interactions are rated Moderate.
Altogether, these interactions span 449 individual medications. We could not check palmitic acid monoethanolamide for interactions.
Run your specific medications through the search tool on this page before starting.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Muscle Recovery & Support?
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 Muscle Recovery & Support interact with 452 drugs. Click any drug to see the details.
2 of the 3 ingredients in Muscle Recovery & Support interact with drugs. Each result below shows which ingredient is responsible. L-Arginine L-Glutamine
AbciximabReoPro
How Abciximab interacts with Muscle Recovery & Support — 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 + Abciximab interactionAbrocitinibCibinqo
How Abrocitinib interacts with Muscle Recovery & Support — 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 + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Muscle Recovery & Support — 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 + Acarbose interactionAcebutololRhotral, Sectral
How Acebutolol interacts with Muscle Recovery & Support — 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 + Acebutolol interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Muscle Recovery & Support — 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 + Acenocoumarol interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Muscle Recovery & Support — 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 + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Muscle Recovery & Support — 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 + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, IbuprofenCombogesic
How Acetaminophen, Ibuprofen interacts with Muscle Recovery & Support — 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 + Acetaminophen, Ibuprofen interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Muscle Recovery & Support — through 2 ingredients. 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 + Acetazolamide interactionL-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Acetazolamide interactionAcetohexamideDymelor
How Acetohexamide interacts with Muscle Recovery & Support — 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 + Acetohexamide interactionAcetylsalicylic AcidEntrophen
How Acetylsalicylic Acid interacts with Muscle Recovery & Support — 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 + Acetylsalicylic Acid interactionAlbiglutideTanzeum
How Albiglutide interacts with Muscle Recovery & Support — 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 + Albiglutide interactionAliskirenTekturna
How Aliskiren interacts with Muscle Recovery & Support — 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 + Aliskiren interactionAlogliptinNesina
How Alogliptin interacts with Muscle Recovery & Support — 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 + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Muscle Recovery & Support — 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 + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Muscle Recovery & Support — 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 + Alogliptin, Pioglitazone interactionAlteplase, TpaActilyse, Activase
How Alteplase, Tpa interacts with Muscle Recovery & Support — 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 + Alteplase, Tpa interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Muscle Recovery & Support — 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 + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with Muscle Recovery & Support — 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 + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAmbrisentanLetairis, Volibris
How Ambrisentan interacts with Muscle Recovery & Support — 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 + Ambrisentan interactionAmilorideAmilamont, Midamor
How Amiloride interacts with Muscle Recovery & Support — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAntihypertensive 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 + Amiloride interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Muscle Recovery & Support — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAntihypertensive 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 + Amiloride, Hydrochlorothiazide interactionAminophylline, Amobarbital, EphedrineAmesec
How Aminophylline, Amobarbital, Ephedrine interacts with Muscle Recovery & Support — through 1 ingredient. Tap an ingredient for the detail:
L-glutamineAnticonvulsants Moderate
Interaction Summary
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Read the full L-glutamine + Aminophylline, Amobarbital, Ephedrine interactionAmlodipineNorliqva
How Amlodipine interacts with Muscle Recovery & Support — 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 + Amlodipine interactionAmlodipine BenzoateKaterzia
How Amlodipine Benzoate interacts with Muscle Recovery & Support — 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 + Amlodipine Benzoate interactionAmlodipine BesilateIstin
How Amlodipine Besilate interacts with Muscle Recovery & Support — 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 + Amlodipine Besilate interactionAmlodipine BesylateNorvasc
How Amlodipine Besylate interacts with Muscle Recovery & Support — 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 + Amlodipine Besylate interactionAmlodipine Besylate, BenazeprilLotrel
How Amlodipine Besylate, Benazepril interacts with Muscle Recovery & Support — through 1 ingredient. Tap an ingredient for the detail:
L-arginineAntihypertensive 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 + Amlodipine Besylate, Benazepril interactionAmlodipine, CelecoxibConsensi
How Amlodipine, Celecoxib interacts with Muscle Recovery & Support — 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 + Amlodipine, Celecoxib interactionAmmonium ChlorideAmmonium Chloride
How Ammonium Chloride interacts with Muscle Recovery & Support — 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 + Ammonium Chloride interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Muscle Recovery & Support with known interactions, here are the types of medications they 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.
L-Glutamine
Anticonvulsants
Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Glutamine is metabolized to the excitatory neurotransmitter glutamate. Glutamate might have antagonistic effects with anticonvulsant drugs. However, this interaction has not yet been reported in humans.
Brand information
Manufacturer and brand details for Muscle Recovery & Support, from the product label.
GNC Mega Men
See all GNC Mega Men products- Name
- General Nutrition Corporation
- City
- Pittsburgh
- State
- PA
- ZipCode
- 15222
- Phone Number
- 1-888-462-2548
- Web Address
- gnc.com
Muscle Recovery & Support by GNC Mega Men: Common Questions
Does Muscle Recovery & Support by GNC Mega Men interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is L-glutamine safe during pregnancy and breastfeeding?
What are the most common side effects?
Is this product effective for muscle recovery?
What is L-glutamine, and what does it do?
Can people with kidney or liver disease use this product?
What are the inactive ingredients, and is there anything else in this product?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Muscle Recovery & Support 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 Muscle Recovery & Support’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Glutamine
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 monographL-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 →Sources & How We Checked
Muscle Recovery & Support'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 77 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.
Glutamine 11 references
- Miller AL. Therapeutic considerations of L-glutamine: a review of the literature. Altern Med Rev 1999;4:239-48..
- Bozzetti F, Biganzoli L, Gavazzi C, et al. Glutamine supplementation in cancer patients receiving chemotherapy: a double-blind randomized study. Nutrition 1997;13:748-51.. PubMed
- Mebane AH. L-Glutamine and mania. Am J Psychiatry 984;141:1302-3.
- Meldrum BS. Glutamate as a neurotransmitter in the brain: review of physiology and pathology. J Nutr 2000;130:1007S-15S.. PubMed
- Garlick PJ. Assessment of the safety of glutamine and other amino acids. J Nutr 2001;131:2556S-61S.. PubMed
- Chapman AG. Glutamate and epilepsy. J Nutr 2000;130:1043S-5S.. PubMed
- Ziegler TR. Glutamine supplementation in cancer patients receiving bone marrow transplantation and high dose chemotherapy. J Nutr 2001;131:2578S-84S.. PubMed
- Laviano A, Molfino A, Lacaria MT, Canelli A, De Leo S, Preziosa I, Rossi Fanelli F. Glutamine supplementation favors weight loss in nondieting obese female patients. A pilot study. Eur J Clin Nutr. 2014 Nov;68(11):1264-6. PubMed
- Endari (l-glutamine) [package insert]. Torrance, CA: Emmaus Medical,Inc; 2017.
- Niihara Y, Miller ST, Kanter J, et al. A Phase 3 Trial of l-Glutamine in Sickle Cell Disease. N Engl J Med 2018;379(3):226-35. doi: 10.1056/NEJMoa1715971.
- Ogden HB, Child RB, Fallowfield JL, et al. Gastrointestinal Tolerance of Low, Medium and High Dose Acute Oral l-Glutamine Supplementation in Healthy Adults: A Pilot Study. Nutrients. 2020;12(10):2953. PubMed
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
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