Interactions on record — worth a quick check against your medications. Based on 2 of 3 ingredients. Check your meds →
Dietary supplement

L Carnitine 1500 Vanilla Ingredients & Drug Interactions

by PS ProSupps

L Carnitine 1500 Vanilla label
See full label image
Liquid Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking L Carnitine 1500 Vanilla 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

The interaction bottom line Most serious interaction: Moderate

L Carnitine 1500 Vanilla is a dietary supplement by PS ProSupps with 3 active ingredients. Its ingredients are commonly taken for general nutrition and energy, skin and hair health, acne (topical and oral).Based on those ingredients, 19 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are L-Carnitine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against L Carnitine 1500 Vanilla by PS ProSupps

Ask about any prescription or over-the-counter medication and we check it for interactions with L Carnitine 1500 Vanilla by PS ProSupps — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
Prefer a human? Send your question to our licensed pharmacists — free, answered by email within 24 hours.

HelloPharmacist Scorecard of L Carnitine 1500 Vanilla by PS ProSupps

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.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Aug 13, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 2 of its 2 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains two active ingredients: L-carnitine and pantothenic acid (also called vitamin B5). L-carnitine is an amino acid your body uses to turn fat into energy, particularly in your heart and muscles.

Pantothenic acid is a B vitamin involved in breaking down fats and carbohydrates and supporting healthy skin and hair. The rest of the product is made up of inactive ingredients—flavorings, acids, sweeteners, and preservatives that give the liquid its taste and shelf life.

There are no other active ingredients.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: increase energy levels and enhance cognitive function.
  • We looked for evidence on: Athletic performance, Cancer-related fatigue, Chemotherapy-related fatigue, Chronic fatigue syndrome (CFS), Cognitive function, Exercise-induced muscle damage — and 4 related terms.
  • The strongest evidence on file: L-carnitine is rated "Effective" for L-carnitine deficiency (Natural Medicines).
  • Also on file: Pantothenic Acid is rated "Insufficient Reliable Evidence To Rate" for Athletic performance, Chronic fatigue syndrome (CFS).
  • Also on file: L-carnitine is rated "Insufficient Reliable Evidence To Rate" for Athletic performance, Cancer-related fatigue, Chemotherapy-related fatigue, Chronic fatigue syndrome (CFS).

L-carnitine is effective for treating L-carnitine deficiency. It's possibly effective for high cholesterol, heart failure, and angina—meaning there's some evidence it may help, but more research would strengthen that case.

Pantothenic acid is effective for pantothenic acid deficiency. For other uses listed in our data—hay fever, hair loss, or radiation skin damage—the evidence either isn't strong enough to rate or suggests it probably won't help.

The evidence, ingredient by ingredient Pantothenic Acid L-carnitine

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

L-carnitine is generally well tolerated at typical doses, though some people experience stomach upset, nausea, diarrhea, or a fishy body odor. High doses make these side effects more likely.

Rare serious side effects like seizures have been reported. Pantothenic acid taken by mouth is generally well tolerated; diarrhea is the main adverse effect seen.

Pantothenic acid is likely safe in pregnancy and lactation at normal dietary amounts, but check with your doctor before taking high-dose supplements. There isn't enough reliable safety data to know whether L-carnitine is safe in pregnancy; lactation safety data is also limited, so caution is advised—talk with your doctor or pharmacist about whether this product is right for you if you're pregnant or nursing.

Side effects, ingredient by ingredient Pantothenic Acid L-carnitine

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 2 matched ingredients can interact with medications — L-carnitine.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 19 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before you take this product, double-check with your doctor or pharmacist if you're on blood thinners—specifically warfarin (Coumadin) or acenocoumarol (Sintrom)—because L-carnitine may increase their strength and raise your bleeding risk. Also flag any thyroid hormone replacement therapy, since L-carnitine may reduce how well it works.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

L-Carnitine 1500 may be worth considering if you have L-carnitine deficiency, or if you're interested in its possible benefits for cholesterol, heart function, or chest pain—but the evidence for those uses is still developing. If you take blood thinners or thyroid medication, check with your doctor or pharmacist first: this product can interact with both.

Pregnant or nursing? Talk it over with your doctor or pharmacist before starting.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Mar 25, 2015.

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

At a glance

General information

Key facts about L Carnitine 1500 Vanilla, straight from the product label.

Brand PS ProSupps
Barcode (UPC) 610708882411
Net contents 16 fl. Oz.; 473 mL
Market status On market
Date entered into DSLD Mar 25, 2015
DSLD ID 43760
Product type Other Combinations
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for L Carnitine 1500 Vanilla by PS ProSupps, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Tbsp
Maximum serving Sizes:
1 Tbsp
Servings per container
31
UPC/BARCODE
610708882411
IngredientAmount% DV
Calories0 {Calories}--
Total Carbohydrates0 Gram(s)--
Sugar0 Gram(s)--
Total Fat0 Gram(s)--
Pantothenic Acid10 mg46%
L-Carnitine1500 mg--

Other ingredients: purified Water, Natural & Artificial flavor, Citric Acid, Malic Acid, Sucralose, Acesulfame-K, Potassium Sorbate, Sodium Benzoate

Tap any ingredient to jump to its full detail below.

Label statements
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.
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.

Seals/Symbols

prosupps(R) RESULTS . . . PERIOD!+

General Statements

31 SERVINGS NATURAL AND ARTIFICIAL FLAVOR

> INCREASE ENERGY LEVELS NATURALLY + > ENHANCE COGNITIVE FUNCTION + > FANTASTIC TASTE

>>>LIQUID METABOLIC ENHANCER+

MADE IN USA

FOLLOW US ON INSTAGRAM, FACEBOOK & TWITTER.

FDA Statement of Identity

DIETARY SUPPLEMENT

Suggested/Recommended/Usage/Directions

SUGGESTED USE: AS A DIETARY SUPPLEMENT, CONSUME ONE TABLESPOON OF L-CARNITINE TWICE DAILY OR AS DIRECTED BY A PHYSICIAN OR LICENSED NUTRITIONIST. YOU MAY ALSO MIX WITH YOUR FAVORITE JUICE OR BEVERAGE.

SHAKE WELL

Storage

REFRIGERATE AFTER OPENING

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

L Carnitine 1500 Vanilla by PS ProSupps label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

L Carnitine 1500 Vanilla label

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)
What’s inside

The Ingredients in L Carnitine 1500 Vanilla by PS ProSupps

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Tbsp Dosage formLiquid Servings per container31 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.

Sugar

0 Gram(s) per serving

Pantothenic Acid

No known
interactions
10 mg per serving

Pantothenic acid is vitamin B5, an essential nutrient your body uses to turn food into energy. True deficiency is very rare because it is found in nea...

Pantothenic Acid monograph & interactions

L-Carnitine

Interacts with
19 drugs
1500 mg per serving

L-carnitine is a compound your body makes naturally and also gets from foods like meat. It helps cells turn fat into energy, and supplements are most...

L-Carnitine monograph & interactions

Other (inactive) ingredients: Purified Water, Natural & Artificial flavor, Citric Acid, Malic Acid, Sucralose, Acesulfame-K, Potassium Sorbate, Sodium Benzoate. These complete the product’s ingredient list but are not active constituents.

Interaction report

L Carnitine 1500 Vanilla by PS ProSupps Drug Interactions

Want to check YOUR meds against L Carnitine 1500 Vanilla?

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 checker
19Drugs
19 Moderate

Ingredients driving the most interactions

L-Carnitine 19

Individual Drug Interactions

The ingredients in L Carnitine 1500 Vanilla interact with 19 drugs. Click any drug to see the details.

1 of the 3 ingredients in L Carnitine 1500 Vanilla interact with drugs. Each result below shows which ingredient is responsible. L-Carnitine

Each ingredient & the kinds of drugs it affects

For each ingredient in L Carnitine 1500 Vanilla 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-Carnitine3 drug types · 19 drugs

Acenocoumarol (Sintrom)

Theoretically, L-carnitine might increase the anticoagulant effects of acenocoumarol.
L-carnitine might enhance the anticoagulant effects of acenocoumarol, an oral anticoagulant similar to warfarin, but shorter-acting. There are at least two case reports of INR elevation with concomitant use. In one case, a 33-year-old male with a previously stable INR had an elevated INR of 4.65 after L-carnitine was started and continued for 10 weeks. INR normalized after discontinuation of the L-carnitine-containing product.

Likelihood Possible Evidence D
Thyroid Hormone

Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
L-carnitine appears to act as a peripheral thyroid hormone antagonist by inhibiting entry of thyroid hormone into the nucleus of cells. Taking L-carnitine also seems to diminish some of the symptoms of hyperthyroidism.

Likelihood Probable Evidence B
Warfarin (Coumadin)

Theoretically, L-carnitine might increase the anticoagulant effects of warfarin.
L-carnitine might increase the anticoagulant effects of acenocoumarol, a shorter-acting oral anticoagulant similar to warfarin. There is not enough information to know whether this interaction occurs with L-carnitine and warfarin.

Likelihood Possible Evidence D
L-Carnitine full monograph & interactions
The maker

Brand information

Manufacturer and brand details for L Carnitine 1500 Vanilla, from the product label.

PS ProSupps

See all PS ProSupps products
Name
PROSUPPS USA, LLC.
Street Address
601 Century Pkwy. Ste. 300
City
Allen
State
TX
ZipCode
75013
Web Address
www.prosupps.com
Pharmacist Counseling Corner

L Carnitine 1500 Vanilla by PS ProSupps: Common Questions

Does L Carnitine 1500 Vanilla by PS ProSupps interact with any medications?
Yes. Based on its ingredients, L Carnitine 1500 Vanilla has a known interaction with 19 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
L Carnitine 1500 Vanilla contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Will L-carnitine help me lose weight?
The facts we hold don't cover weight loss. L-carnitine is effective for treating L-carnitine deficiency and possibly effective for high cholesterol, heart failure, and angina. For weight loss specifically, you'd want to talk with your doctor or pharmacist about whether the evidence supports it for your situation.
Can I take this while pregnant?
The safety data for L-carnitine in pregnancy isn't clear enough to know either way. Pantothenic acid is likely safe at normal dietary amounts during pregnancy, but for the L-carnitine component, talk with your doctor or pharmacist about whether this product is right for you.
Can I breastfeed while taking this?
Pantothenic acid is likely safe while breastfeeding. L-carnitine is possibly safe while breastfeeding, but safety data is limited and caution is advised. Check with your doctor or pharmacist before starting.
What's the fishy odor I might notice?
A fish-like body odor has been reported with L-carnitine supplements, especially at higher doses. It's an uncommon side effect, but it's something to know about. Stomach upset, nausea, and diarrhea are more common.
What does pantothenic acid do in this product?
Pantothenic acid—vitamin B5—helps your body break down fats and carbohydrates for energy and supports healthy skin and hair. In this product, it's included to support overall B vitamin status.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if L Carnitine 1500 Vanilla is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

L Carnitine 1500 Vanilla label
Go deeper

The Full Monographs Behind L Carnitine 1500 Vanilla’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Pantothenic Acid

Pantothenic acid is vitamin B5, an essential nutrient your body uses to turn food into energy. True deficiency is very rare because it is found in nearly all foods, and most people meet thei...

Read the full Pantothenic Acid monograph → Herb & supplement monograph

L-carnitine

Interacts with 19 drugs

L-carnitine is a compound your body makes naturally and also gets from foods like meat. It helps cells turn fat into energy, and supplements are most clearly useful for people with a true ca...

Read the full L-carnitine monograph →
Sources

Sources & How We Checked

L Carnitine 1500 Vanilla'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.

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 52 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.

Pantothenic Acid 11 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Yates AA, Schlicker SA, Suitor CW. Dietary reference intakes: The new basis for recommendations for calcium and related nutrients, B vitamins, and choline. J Am Diet Assoc 1998;98:699-706. PubMed
  3. Debourdeau PM, Djezzar S, Estival JL, et al. Life-threatening eosinophilic pleuropericardial effusion related to vitamins B5 and H. Ann Pharmacother 2001;35:424-6. DOI
  4. Schmuth, M., Wimmer, M. A., Hofer, S., Sztankay, A., Weinlich, G., Linder, D. M., Elias, P. M., Fritsch, P. O., and Fritsch, E. Topical corticosteroid therapy for acute radiation dermatitis: a prospective, randomized, double-blind study. Br.J.Dermatol. 2 PubMed
  5. Schreck, U., Paulsen, F., Bamberg, M., and Budach, W. Intraindividual comparison of two different skin care conceptions in patients undergoing radiotherapy of the head-and-neck region. Creme or powder? Strahlenther.Onkol. 2002;178(6):321-329. PubMed
  6. Herbst, R. A., Uter, W., Pirker, C., Geier, J., and Frosch, P. J. Allergic and non-allergic periorbital dermatitis: patch test results of the Information Network of the Departments of Dermatology during a 5-year period. Contact Dermatitis 2004;51(1):13-1 PubMed
  7. Champault, G. and Patel, J. C. [Treatment of constipation with Bepanthene]. Med.Chir Dig. 1977;6(1):57-59.
  8. Scott LN, Fiume M, Bergfeld WF, et al. Safety Assessment of Panthenol, Pantothenic Acid, and Derivatives as Used in Cosmetics. Int J Toxicol 2022;41(3_suppl):77-128. PubMed
  9. Han J, Warshaw EM. Allergic Contact Dermatitis to Panthenol in "Hypoallergenic" Products. Dermatitis 2023;34(1):62-63. PubMed
  10. Blanchard G, Kerre S, Walker A, et al. Allergic contact dermatitis from pantolactone and dexpanthenol in wound healing creams. Contact Dermatitis 2022;87(5):468-471. PubMed
  11. Peltier E, Trapp S, de Salvo R, et al. A new dexpanthenol-containing liquid cleanser for atopic-prone skin: Results from two prospective clinical studies evaluating cutaneous tolerability, moisturization potential, and effects on barrier function. J Cosme PubMed

See these in context on the Pantothenic Acid monograph →

L-carnitine 41 references
  1. Ellaway CM, Williams K, Leonard H, et al. Rett syndrome: randomized controlled trial of L-carnitine. J Child Neurol 1999;14:162-7. PubMed
  2. Anon. Carnitor (levocarnitine) package insert. Sigma-Tau Pharmaceuticals Inc, Gaithersburg, MD. December 1999.
  3. Cherchi A, Lai C, Angelino F, et al. Effects of L-carnitine on exercise tolerance in chronic stable angina: a multicenter, double-blind, randomized, placebo-controlled, crossover study. Int J Clin Pharmacol Ther Toxicol 1985;23:569-72.
  4. Plioplys AV, Plioplys S. Amantadine and L-carnitine treatment of Chronic Fatigue Syndrome. Neuropsychobiology 1997;35:16-23. PubMed
  5. Benvenga S, Ruggeri RM, Russo A, et al. Usefulness of L-carnitine, a naturally occurring peripheral antagonist of thyroid hormone action, in iatrogenic hyperthyroidism: a randomized, double-blind, placebo-controlled clinical trial. J Clin Endocrinol Meta
  6. Martinez E, Domingo P, Roca-Cusachs A. Potentiation of acenocoumarol action by L-carnitine. J Intern Med 1993;233:94.
  7. Bachmann HU, Hoffmann A. Interaction of food supplement L-carnitine with oral anticoagulant acenocoumarol. Swiss Med Wkly 2004;134:385. PubMed
  8. Evans AM, Fornasini G. Pharmacokinetics of L-carnitine. Clin Pharmacokinet 2003;42:941-67. PubMed
  9. 12761 Benvenga S, Amato A, Calvani M, Trimarchi F. Effects of carnitine on thyroid hormone action. Ann N Y Acad Sci 2004;1033:158-67. PubMed
  10. Ciacci C, Peluso G, Iannoni E, et al. L-Carnitine in the treatment of fatigue in adult celiac disease patients: a pilot study. Dig Liver Dis 2007;39:922-8. PubMed
  11. Cruciani RA, Dvorkin E, Homel P, et al. Safety, tolerability and symptom outcomes associated with L-carnitine supplementation in patients with cancer, fatigue, and carnitine deficiency: a phase I/II study. J Pain Symptom Manage 2006;32:551-9. PubMed
  12. Lebrun C, Alchaar H, Candito M, et al. Levocarnitine administration in multiple sclerosis patients with immunosuppressive therapy-induced fatigue. Mult Scler 2006;12:321-4. PubMed
  13. Malaguarnera M, Cammalleri L, Gargante MP, et al. L-Carnitine treatment reduces severity of physical and mental fatigue and increases cognitive functions in centenarians: a randomized and controlled clinical trial. Am J Clin Nutr 2007;86:1738-44. PubMed
  14. Mantovani G, Maccio A, Madeddu C, et al. Randomized phase III clinical trial of five different arms of treatment in 322 patients with cancer cachexia. Oncologist 2010;15:200-11.
  15. Angelova-Fischer I, Rippke F, Fischer TW, Neufang G, Zillikens D. A double-blind, randomized, vehicle-controlled efficacy assessment study of a skin care formulation for improvement of mild to moderately severe acne. J Eur Acad Dermatol Venereol. 2013 Jul PubMed
  16. Hatamkhani S, Khalili H, Karimzadeh I, Dashti-Khavidaki S, Abdollahi A, Jafari S. Carnitine for prevention of antituberculosis drug-induced hepatotoxicity: a randomized, clinical trial. J Gastroenterol. Hepatol. 2014 May;29(5):997-1004. PubMed
  17. Boehm G, Stahl B. Oligosaccharides from milk. J Nutr 2007;137(3 Suppl 2):847S-849S.
  18. Van Oudheusden, L. J. and Scholte, H. R. Efficacy of carnitine in the treatment of children with attention-deficit hyperactivity disorder. Prostaglandins Leukot.Essent.Fatty Acids 2002;67(1):33-38. PubMed
  19. Derosa, G., Cicero, A. F., Gaddi, A., Mugellini, A., Ciccarelli, L., and Fogari, R. The effect of L-carnitine on plasma lipoprotein(a) levels in hypercholesterolemic patients with type 2 diabetes mellitus. Clin Ther 2003;25(5):1429-1439. PubMed
  20. Foitzik, K., Hoting, E., Heinrich, U., Tronnier, H., and Paus, R. Indications that topical L-carnitin-L-tartrate promotes human hair growth in vivo. J Dermatol.Sci 2007;48(2):141-144. PubMed
  21. Kumar, A., Singh, R. B., Saxena, M., Niaz, M. A., Josh, S. R., Chattopadhyay, P., Mechirova, V., Pella, D., and Fedacko, J. Effect of carni Q-gel (ubiquinol and carnitine) on cytokines in patients with heart failure in the Tishcon study. Acta Cardiol. 20
  22. Cruciani, R. A., Dvorkin, E., Homel, P., Culliney, B., Malamud, S., Lapin, J., Portenoy, R. K., and Esteban-Cruciani, N. L-carnitine supplementation in patients with advanced cancer and carnitine deficiency: a double-blind, placebo-controlled study. J Pa PubMed
  23. Malaguarnera, M., Vacante, M., Avitabile, T., Malaguarnera, M., Cammalleri, L., and Motta, M. L-Carnitine supplementation reduces oxidized LDL cholesterol in patients with diabetes. Am J Clin.Nutr 2009;89(1):71-76. PubMed
  24. Alvarez, T. M., Guardiola, P. D., Roldan, J. O., Elviro, R., Wevers, R., and Guijarro, G. [Primary trimethylaminuria: the fish odor syndrome]. Endocrinol.Nutr. 2009;56(6):337-340.
  25. Wu, Z. M., Lu, X., Wang, Y. W., Sun, J., Tao, J. W., Yin, F. H., and Cheng, H. J. [Short-term medication of L-carnitine before intracytoplasmic sperm injection for infertile men with oligoasthenozoospermia]. Zhonghua Nan.Ke.Xue 2012;18(3):253-256.
  26. Tarighat, Esfanjani A., Mahdavi, R., Ebrahimi, Mameghani M., Talebi, M., Nikniaz, Z., and Safaiyan, A. The effects of magnesium, L-carnitine, and concurrent magnesium-L-carnitine supplementation in migraine prophylaxis. Biol.Trace Elem.Res 2012;150(1-3): PubMed
  27. DiNicolantonio, J. J., Lavie, C. J., Fares, H., Menezes, A. R., and O'Keefe, J. H. L-carnitine in the secondary prevention of cardiovascular disease: systematic review and meta-analysis. Mayo Clin Proc. 2013;88(6):544-551. PubMed
  28. Huang, W. W., Wang, M. Y., Shi, H. M., Peng, Y., Peng, C. S., Zhang, M., Li, Y., Lu, J., and Li, X. B. Comparative study of bioactive constituents in crude and processed Glycyrrhizae radix and their respective metabolic profiles in gastrointestinal tract
  29. Madsen KL, Preisler N, Orngreen MC, Andersen SP, Olesen JH, Lund AM, Vissing J. Patients with medium-chain acyl-coenzyme a dehydrogenase deficiency have impaired oxidation of fat during exercise but no effect of L-carnitine supplementation. J Clin Endocri
  30. Prohaska ES, Muzyk AJ, Rivelli SK. Levocarnitine-induced hypophosphatemia in a hemodialysis patient with acute valproic acid toxicity. J Neuropsychiatry Clin Neurosci. 2012 Winter;24(1):E18-9. PubMed
  31. Shang R, Sun Z, Li H. Effective dosing of L-carnitine in the secondary prevention of cardiovascular disease: a systematic review and meta-analysis. BMC Cardiovasc Disord. 2014 Jul 21;14:88. PubMed
  32. Zhang JJ, Wu ZB, Cai YJ, Ke B, Huang YJ, Qiu CP, Yang YB, Shi LY, Qin J. L-carnitine ameliorated fasting-induced fatigue, hunger, and metabolic abnormalities in patients with metabolic syndrome: a randomized controlled study. Nutr J. 2014 Nov 26;13:110. PubMed
  33. Koeth RA, Wang Z, Levison BS, Buffa JA, Org E, Sheehy BT, Britt EB, Fu X, Wu Y, Li L, Smith JD, DiDonato JA, Chen J, Li H, Wu GD, Lewis JD, Warrier M, Brown JM, Krauss RM, Tang WH, Bushman FD, Lusis AJ, Hazen SL. Intestinal microbiota metabolism of L-carn
  34. Jun DW, Kim BI, Cho YK, Kim HJ, Kwon YO, Park SY, Han SY, Baek YH, Jung YJ, Kim HY, Kim W, Heo J, Woo HY, Hwang SG, Rim KS, Choi JY, Bae SH, Lee YS, Lim YS,Cheong JY, Cho SW, Lee BS, Kim SH, Sohn JH, Kim TY, Paik YH, Kim JK, Lee KS. Efficacy and safety of
  35. An JH, Kim YJ, Kim KJ, et al. L-carnitine supplementation for the management of fatigue in patients with hypothyroidism on levothyroxine treatment: a randomized, double-blind, placebo-controlled trial. Endocr J. 2016;63(10):885-95. PubMed
  36. Chen N, Yang M, Zhou M, Xiao J, Guo J, He L. L-carnitine for cognitive enhancement in people without cognitive impairment. Cochrane Database Syst Rev. 2017;3:CD009374. PubMed
  37. Khajeh B, Dashti-Khavidaki S, Nasiri-Toosi M, Mohammadi K, Jafari A. Effects of pre-transplant L-carnitine supplementation on primary graft dysfunction in liver transplant recipients: a pilot, randomized, placebo-controlled clinical trial. Res Pharm Sci. PubMed
  38. Kubota K, Uojima H, Shao X, et al. Additional L-carnitine Reduced the Risk of Hospitalization in Patients with Overt Hepatic Encephalopathy on Rifaximin. Dig Dis 2021. PubMed
  39. Amini L, Yaghini O, Ghazavi M, Aslani N. L-carnitine versus propranolol for pediatric migraine prophylaxis. Iran J Child Neurol 2021;15(2):77-86.
  40. Shakibaei F, Jelvani D. Effect of adding l -carnitine to risperidone on behavioral, cognitive, social, and physical symptoms in children and adolescents with autism: A randomized double-blinded placebo-controlled clinical trial. Clin Neuropharmacol 2023;4 PubMed
  41. Moustafa I, Connolly C, Anis M, Mustafa H, Oosthuizen F, Viljoen M. A prospective study to evaluate the efficacy and safety of vitamin E and levocarnitine prophylaxis against doxorubicin-induced cardiotoxicity in adult breast cancer patients. J Oncol Phar PubMed

See these in context on the L-carnitine monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Supplement interaction checker › Check any supplement or product against your medications Drug–drug interactions › Check two or more of your medications against each other Browse medications A–Z › Every drug we've checked against herbs & supplements NDC & pricing lookup › Find a drug’s NDCs, packaging and costs Ask a pharmacist › Free, personal answer from our licensed team