L-Carnitine 250 mg Ingredients & Drug Interactions
What is this page for?
First and foremost: checking L-Carnitine 250 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
L-Carnitine 250 mg is a dietary supplement by Vitamin World with 1 active ingredient. Its ingredients are commonly taken for exercise performance and recovery, heart health, weight management.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 Free Form. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against L-Carnitine 250 mg by Vitamin World
Ask about any prescription or over-the-counter medication and we check it for interactions with L-Carnitine 250 mg by Vitamin World — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
Ask the Pharmacist
A licensed pharmacist will answer your question by email — free, usually within 24 hours.
Got it — thank you!
A licensed pharmacist will answer within 24 hours. Keep an eye on your email (worth checking spam, just in case).
HelloPharmacist Scorecard of L-Carnitine 250 mg by Vitamin World
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product contains one active ingredient: L-carnitine free form at 250 mg per capsule. L-carnitine is a compound your body makes naturally and uses to move fatty acids into your cells' power centers (mitochondria) so they can be burned for energy.
The capsule itself is made from gelatin and rice flour.
Does it work?
Strong evidence
L-carnitine is effective for treating L-carnitine deficiency. It's also possibly effective for high cholesterol (hyperlipidemia), congestive heart failure (a condition where the heart can't pump blood efficiently), and angina (chest pain from reduced blood flow).
The evidence for these other uses is not as strong as it is for deficiency, but the data suggests benefit may occur.
How safe is it?
Well-documented data
L-carnitine is generally well tolerated at typical doses. The most common side effects are stomach-related: abdominal pain or cramps, diarrhea, nausea, heartburn, and reduced appetite.
Some people report a fishy body odor. Seizures have been reported rarely.
High doses are more likely to cause stomach upset. Safety data during pregnancy is not available, so there isn't enough information to know whether it's safe — talk with your doctor or pharmacist if you're pregnant or planning to become pregnant.
L-carnitine is possibly safe while breastfeeding, though safety is not well studied, so caution is advised.
Meds to double-check
Moderate interaction found
Before you start, double-check with your doctor or pharmacist if you take blood thinners (anticoagulants), especially warfarin or acenocoumarol — L-carnitine may increase their effect and your bleeding risk. Also check if you're on thyroid hormone replacement, since L-carnitine may reduce how well it works.
The bottom line
Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.
L-carnitine may help if you have a documented deficiency or possibly help with high cholesterol, heart failure, or angina. If you take blood thinners like warfarin or acenocoumarol, or thyroid hormone replacement, you need to clear this with your own doctor or pharmacist first — the interactions could affect how well your drugs work.
Otherwise, most people tolerate it well, though stomach upset and a fishy odor can happen.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Apr 25, 2013.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about L-Carnitine 250 mg, straight from the product label.
| Brand | Vitamin World |
|---|---|
| Barcode (UPC) | 074312741425 |
| Net contents | 120 Rapid Release Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Apr 25, 2013 |
| DSLD ID | 20296 |
| Product type | Amino Acid/protein |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Dairy Free, Sugar 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 L-Carnitine 250 mg by Vitamin World, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Carnitine Free Form | 1000 mg | -- |
Other ingredients: Gelatin, Rice Flour, Contains <2% of
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
From the moment raw ingredients reach our facilities to the time a finished supplement is packaged, stringent analysis confirms the potency, purity and nutritional content of every nutritional product that bears the Vitamin World name. We guarantee it!
Get healthy. Free form
Promotes Energy & Fat Metabolism* Supports Coronary Health*
Carnitine is a nitrogen-containing compound that assists in fat metabolism and plays an essential role in making fatty acids available for energy in muscle tissue.* Carnitine also supports coronary health.*
Seals/Symbols
QA QUALITY ASSURED
Formulation
No Artificial Color, Flavor or Sweetener, No Preservatives, No Sugar, No Milk, No Lactose, No Soy, No Gluten, No Wheat, No Yeast, No Fish. Sodium Free.
Precautions
Keep out of reach of children.
Do not use if seal under cap is broken or missing.
WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
Discontinue use and consult your doctor if any adverse reactions occur.
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
PROD. #4142 B4140 11E
FDA Statement of Identity
DIETARY SUPPLEMENT
Suggested/Recommended/Usage/Directions
DIRECTIONS: For adults, take four (4) capsules one to two times daily, preferably on an empty stomach.
Storage
Store at room temperature.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
L-Carnitine 250 mg by Vitamin World label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in L-Carnitine 250 mg by Vitamin World
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size4 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.
L-Carnitine Free Form
Interacts with19 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...
L-Carnitine Free Form monograph & interactionsOther (inactive) ingredients: Gelatin, Rice Flour, Contains <2% of. These complete the product’s ingredient list but are not active constituents.
L-Carnitine 250 mg by Vitamin World Drug Interactions
HelloPharmacist Interaction Report
L-Carnitine 250 mg by Vitamin World does interact with a few important medication types, all through its single active ingredient, L-carnitine.
The most serious interaction is with blood thinners (anticoagulants): L-carnitine may strengthen the blood-thinning effect of warfarin (Coumadin) and acenocoumarol (Sintrom), which could increase your bleeding risk. There are at least two case reports of elevated INR (a measure of how thin your blood is) when these drugs were used together.
Read the full breakdown — every affected drug type, severity by severity
L-carnitine also appears to interfere with thyroid hormone replacement therapy. It may block thyroid hormone from entering your cells properly, which could reduce how well your thyroid medication works for you.
Altogether, these interactions span 19 individual medications. If you take warfarin, acenocoumarol, or any thyroid hormone replacement, talk with your own doctor or pharmacist before starting L-carnitine to see whether it's right for you.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against L-Carnitine 250 mg?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in L-Carnitine 250 mg interact with 19 drugs. Click any drug to see the details.
1 of the 1 ingredient in L-Carnitine 250 mg interact with drugs. Each result below shows which ingredient is responsible. L-Carnitine Free Form
AcenocoumarolSintrom
How Acenocoumarol interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormAcenocoumarol (sintrom) Moderate
Interaction Summary
Theoretically, L-carnitine might increase the anticoagulant effects of acenocoumarol.
Read the full L-carnitine Free Form + Acenocoumarol interactionConjugated EstrogensCenestin, Enjuvia, Premarin, Premarin Vaginal Cream
How Conjugated Estrogens interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Conjugated Estrogens interactionDesiccated Thyroid ExtractWesthroid, WP Thyroid
How Desiccated Thyroid Extract interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Desiccated Thyroid Extract interactionDesiccated Thyroid Extract (prescription Drug)Nature-Throid, Thyrar
How Desiccated Thyroid Extract (prescription Drug) interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Desiccated Thyroid Extract (prescription Drug) interactionDextrothyroxineCholoxin
How Dextrothyroxine interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Dextrothyroxine interactionHuman Chorionic Gonadotropin (hcg)Pregnyl
How Human Chorionic Gonadotropin (hcg) interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Human Chorionic Gonadotropin (hcg) interactionLevothyroxineEltroxin, Estre, Euthyrox, Levo-T, Levolet, Levothroid +5 more
How Levothyroxine interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Levothyroxine interactionLevothyroxine SodiumErmez, Thyquidity, Tirosint-Sol
How Levothyroxine Sodium interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Levothyroxine Sodium interactionLevothyroxine, LiothyronineArmour Thyroid
How Levothyroxine, Liothyronine interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Levothyroxine, Liothyronine interactionLiothyronineCytomel
How Liothyronine interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Liothyronine interactionLiotrixEuthroid 1, Euthroid 1/2, Euthroid 3
How Liotrix interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Liotrix interactionLiotrix, T4/t3Euthroid 2
How Liotrix, T4/t3 interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Liotrix, T4/t3 interactionMenotropinsMenopur, Repronex
How Menotropins interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Menotropins interactionOspemifeneOsphena
How Ospemifene interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Ospemifene interactionTestosterone UndecanoateAndriol, Aveed, Jatenzo, Kyzatrex
How Testosterone Undecanoate interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Testosterone Undecanoate interactionThyroglobulinProloid
How Thyroglobulin interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Thyroglobulin interactionThyroid HormoneEtwon
How Thyroid Hormone interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine Free Form + Thyroid Hormone interactionWarfarinWarfarin
How Warfarin interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormWarfarin (coumadin) Moderate
Interaction Summary
Theoretically, L-carnitine might increase the anticoagulant effects of warfarin.
Read the full L-carnitine Free Form + Warfarin interactionWarfarin SodiumCoumadin, Panwarfin, Sofarin
How Warfarin Sodium interacts with L-Carnitine 250 mg — through 1 ingredient. Tap an ingredient for the detail:
L-carnitine Free FormWarfarin (coumadin) Moderate
Interaction Summary
Theoretically, L-carnitine might increase the anticoagulant effects of warfarin.
Read the full L-carnitine Free Form + Warfarin Sodium interactionEach ingredient & the kinds of drugs it affects
For each ingredient in L-Carnitine 250 mg 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-Carnitine Free Form
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.
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.
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.
Brand information
Manufacturer and brand details for L-Carnitine 250 mg, from the product label.
Vitamin World
See all Vitamin World products- Name
- Vitamin World, Inc.
- City
- Ronkonkoma
- State
- NY
- ZipCode
- 11779
L-Carnitine 250 mg by Vitamin World: Common Questions
Does L-Carnitine 250 mg by Vitamin World interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is L-carnitine safe during pregnancy?
What does L-carnitine actually do in my body?
Can L-carnitine cause stomach problems?
Is L-carnitine safe to take while breastfeeding?
Does L-carnitine actually work for high cholesterol or heart problems?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if L-Carnitine 250 mg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind L-Carnitine 250 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
L-Carnitine 250 mg'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 41 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-carnitine 41 references
- Ellaway CM, Williams K, Leonard H, et al. Rett syndrome: randomized controlled trial of L-carnitine. J Child Neurol 1999;14:162-7. PubMed
- Anon. Carnitor (levocarnitine) package insert. Sigma-Tau Pharmaceuticals Inc, Gaithersburg, MD. December 1999.
- 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.
- Plioplys AV, Plioplys S. Amantadine and L-carnitine treatment of Chronic Fatigue Syndrome. Neuropsychobiology 1997;35:16-23. PubMed
- 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
- Martinez E, Domingo P, Roca-Cusachs A. Potentiation of acenocoumarol action by L-carnitine. J Intern Med 1993;233:94.
- Bachmann HU, Hoffmann A. Interaction of food supplement L-carnitine with oral anticoagulant acenocoumarol. Swiss Med Wkly 2004;134:385. PubMed
- Evans AM, Fornasini G. Pharmacokinetics of L-carnitine. Clin Pharmacokinet 2003;42:941-67. PubMed
- 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
- 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
- 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
- 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
- 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
- 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.
- 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
- 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
- Boehm G, Stahl B. Oligosaccharides from milk. J Nutr 2007;137(3 Suppl 2):847S-849S.
- 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
- 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
- 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
- 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
- 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
- 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
- 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.
- 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.
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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.
- 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
- 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
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