Acetyl L-Carnitine 1000 Milligrams Ingredients & Drug Interactions
by NutraBio
What is this page for?
First and foremost: checking Acetyl L-Carnitine 1000 Milligrams 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
Acetyl L-Carnitine 1000 Milligrams is a dietary supplement by NutraBio with 1 active ingredient. Its ingredients are commonly taken for memory and cognitive support, nerve pain (neuropathy), energy and fatigue.Based on those ingredients, 203 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Acetyl L-Carnitine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Acetyl L-Carnitine 1000 Milligrams by NutraBio
Ask about any prescription or over-the-counter medication and we check it for interactions with Acetyl L-Carnitine 1000 Milligrams by NutraBio — 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 Acetyl L-Carnitine 1000 Milligrams by NutraBio
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 a single active ingredient: acetyl L-carnitine at 1,000 milligrams per capsule. Acetyl L-carnitine is a compound your body makes naturally; it helps cells produce energy and plays a role in nerve and brain function.
The capsule itself is made from vegetable material.
Does it work?
Moderate evidence
Acetyl L-carnitine is rated possibly effective for several conditions based on available evidence: age-related cognitive decline, Alzheimer disease, alcohol use disorder, diabetic neuropathy (nerve damage from diabetes), and depression. The evidence for these uses exists but isn't conclusive — it's a reasonable option to discuss with your doctor if you're dealing with one of these, but it's not proven to work for everyone.
How safe is it?
Well-documented data
Acetyl L-carnitine is generally well tolerated in the short term, but long-term safety hasn't been fully studied, so we'd need more research to know how safe it is over months or years. Common side effects include agitation, dry mouth, headache, insomnia, reduced appetite, nausea, vomiting, and diarrhea.
A metabolite of the supplement can cause a fishy odor in urine, breath, and sweat. In people with Alzheimer disease, psychiatric side effects like depression, confusion, and aggression have been reported, though it's unclear whether acetyl L-carnitine caused them or the disease itself did.
Safety during breastfeeding is unknown, so it's best avoided unless your doctor advises otherwise. There isn't enough reliable safety information during pregnancy, so talk with your doctor or pharmacist before using it.
Meds to double-check
Moderate interaction found
Before taking this product, double-check serotonergic drugs (antidepressants, migraine medications, and similar agents), blood thinners like warfarin and acenocoumarol, and thyroid hormone replacement medications with your pharmacist or using the medication checker below.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.
Acetyl L-carnitine may help with cognitive decline, Alzheimer disease, nerve damage from diabetes, and depression, but the evidence isn't strong. If you take serotonergic drugs (antidepressants, migraine meds), blood thinners like warfarin, or thyroid hormone replacement, run your medications through our checker first — this supplement can affect all three.
Check with your pharmacist before starting.
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 Sep 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
General information
Key facts about Acetyl L-Carnitine 1000 Milligrams, straight from the product label.
| Brand | NutraBio |
|---|---|
| Barcode (UPC) | 649908232276 |
| Net contents | 500 Cap(s) |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2015 |
| DSLD ID | 50866 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegetarian, Adult (18 - 50 Years), Kosher, No Allergies, Gluten 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 Acetyl L-Carnitine 1000 Milligrams by NutraBio, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Acetyl L-Carnitine | 1000 mg | -- |
Other ingredients: Vegetable Capsule
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.
Storage
Store in cool dry place
General Statements
Since 1996
Manufactured in a GMP & FDA Inspected Facility
Pharmaceutical Grade - HPLC Labe Tested Potency
Vegetable Capsule
Made in USA
Made in a GMP & FDA Inspected Facility
Suggested/Recommended/Usage/Directions
Suggested Use: As a dietary supplement, take 2 capsules 1 to 3 times daily, preferably on an empty stomach or as directed by a physician.
2 capsules - 1-3x daily - Empty Stomach
Formulation
Zero Fillers or Excipients Inferior Ingredients Banned Substances / Added Sugars Proprietary Blends Hidden Ingredients
No fillers -No excipients - No additives
Free of Harmful Impurities
Kosher, Vegetarian, Hypoallergenic, Non-GMO, Gluten Free & BSE/TSE Free: No added sugars, salt, preservatives, salicylates, or artificial color, flavor or fragrance.
Vegetarian
Allergen Free Non-GMO Gluten Free BSE/TSE Free
Kosher, Vegetarian, Hypoallergenic, Non-GMO, Gluten Free & BSE/TSE Free:
Kosher, Vegetarian, Hypoallergenic, Non-GMO, Gluten Free & BSE/TSE Free:
Precautions
Warning: Not intended for use by persons under the age of 18. Keep out of the reach of children.
If you are pregnant, breastfeeding, have known medical conditions (including kidney or liver disease) or are taking prescription or OTC practitioner before using this product.
If you are Isotretinoin, and Valproic Acid you should consult a physician before using any L-Carnitine supplements. This supplement should be used by healthy adults only.
Brand IP Statement(s)
Amino Therapy
Seals/Symbols
True Label Full Label Disclosure
OU
23227-005 B20067-004
FDA Statement of Identity
Dietary Supplements
Quality and purity since 1996. NutraBio manufactures in our own FDA registered & inspected GMP facility complying with FDA 21 CFR Part 111 regulations.
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.
Formula
Kosher, Vegetarian, Hypoallergenic, Non-GMO, Gluten Free & BSE/TSE Free:
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Acetyl L-Carnitine 1000 Milligrams by NutraBio 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 Acetyl L-Carnitine 1000 Milligrams by NutraBio
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size2 Vegetable Capsule(s) Dosage formCapsule Servings per container250 Amounts shown are per serving.
Acetyl L-Carnitine
Interacts with203 drugs
Acetyl-L-carnitine is a form of the amino acid carnitine that the body uses to help produce energy in cells. It is most studied for nerve pain and mem...
Acetyl L-Carnitine monograph & interactionsOther (inactive) ingredients: Vegetable Capsule. These complete the product’s ingredient list but are not active constituents.
Acetyl L-Carnitine 1000 Milligrams by NutraBio Drug Interactions
HelloPharmacist Interaction Report
Acetyl L-Carnitine 1000 Milligrams by NutraBio does interact with several medication types.
The most serious concern is with serotonergic drugs — antidepressants, migraine medications, and similar agents that work on serotonin. Acetyl L-carnitine can raise serotonin levels in the brain and theoretically increase the risk of serotonin syndrome (a potentially serious condition marked by agitation, confusion, rapid heart rate, and high blood pressure) and other serotonergic side effects.
Read the full breakdown — every affected drug type, severity by severity
It also affects blood thinners. With warfarin (Coumadin) and acenocoumarol (Sintrom), acetyl L-carnitine may strengthen their anticoagulant effects, raising your bleeding risk.
Additionally, it may reduce how well thyroid hormone replacement works by blocking thyroid hormone from entering cells where it's needed.
Altogether, these interactions span 203 individual medications. Use the medication checker on this page to run your exact prescriptions through before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Acetyl L-Carnitine 1000 Milligrams?
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 Acetyl L-Carnitine 1000 Milligrams interact with 203 drugs. Click any drug to see the details.
1 of the 1 ingredient in Acetyl L-Carnitine 1000 Milligrams interact with drugs. Each result below shows which ingredient is responsible. Acetyl L-Carnitine
AripiprazoleAbilify, Abilify Maintena, Abilify Mycite
How Aripiprazole interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Aripiprazole interactionAripiprazole LauroxilAristada, Aristada Initio Kit
How Aripiprazole Lauroxil interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Aripiprazole Lauroxil interactionAspirin, Chlorpheniramine, PhenylpropanolamineAlka-Seltzer Plus Cold
How Aspirin, Chlorpheniramine, Phenylpropanolamine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Aspirin, Chlorpheniramine, Phenylpropanolamine interactionAtropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, PhenylAtrosept
How Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl interactionAtropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl SalicylateUrinary Antiseptic 2, Urised
How Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl Salicylate interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl Salicylate interactionAtropine, Chlorpheniramine, Hyoscyamine, Phenylephrine, Phenylpropanolamine, ScopolamineAtrohist Plus, Pro Tuss, Ru-tuss, Stahist
How Atropine, Chlorpheniramine, Hyoscyamine, Phenylephrine, Phenylpropanolamine, Scopolamine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Atropine, Chlorpheniramine, Hyoscyamine, Phenylephrine, Phenylpropanolamine, Scopolamine interactionAtropine, MeperidineAtropine, Meperidine
How Atropine, Meperidine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Atropine, Meperidine interactionBelladonna Alkaloids, Chlorpheniramine, Phenylephrine, PhenylpropanolamineRespa ARM
How Belladonna Alkaloids, Chlorpheniramine, Phenylephrine, Phenylpropanolamine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Belladonna Alkaloids, Chlorpheniramine, Phenylephrine, Phenylpropanolamine interactionBenzhydrocodone, AcetaminophenApadaz
How Benzhydrocodone, Acetaminophen interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Benzhydrocodone, Acetaminophen interactionBenzocaine, DextromethorphanTetra-Formula
How Benzocaine, Dextromethorphan interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Benzocaine, Dextromethorphan interactionBrexpiprazoleRexulti
How Brexpiprazole interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Brexpiprazole interactionBrompheniramine, Dextromethorphan, PhenylephrineDimetapp DM
How Brompheniramine, Dextromethorphan, Phenylephrine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Brompheniramine, Dextromethorphan, Phenylephrine interactionBuprenorphineBrixadi, Butrans, Sublocade, Subutex
How Buprenorphine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Buprenorphine interactionBuproprion, DextromethorphanAuvelity
How Buproprion, Dextromethorphan interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Buproprion, Dextromethorphan interactionBuspironeBuSpar
How Buspirone interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Buspirone interactionCarbamazepineCarbatrol, Carnexiv, Equetro, Tegretol, Tegretol XR
How Carbamazepine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Carbamazepine interactionCarbetapentane Tannate, Chlorpheniramine TannateTussi-12
How Carbetapentane Tannate, Chlorpheniramine Tannate interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Carbetapentane Tannate, Chlorpheniramine Tannate interactionCarbetapentane Tannate, Chlorpheniramine Tannate, Ephedrine Tannate, Phenylephrine TannateQuadratuss, Ry Tuss, Rynatuss, Tri Tannate Plus
How Carbetapentane Tannate, Chlorpheniramine Tannate, Ephedrine Tannate, Phenylephrine Tannate interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Carbetapentane Tannate, Chlorpheniramine Tannate, Ephedrine Tannate, Phenylephrine Tannate interactionCarbetapentane, Chlorpheniramine, PhenylephrineRicotuss
How Carbetapentane, Chlorpheniramine, Phenylephrine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Carbetapentane, Chlorpheniramine, Phenylephrine interactionCarbetapentane, Chlorpheniramine, Phenylephrine, Phenylpropanolamine, Potassium GuaiacolsulfonateCophene-X
How Carbetapentane, Chlorpheniramine, Phenylephrine, Phenylpropanolamine, Potassium Guaiacolsulfonate interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Carbetapentane, Chlorpheniramine, Phenylephrine, Phenylpropanolamine, Potassium Guaiacolsulfonate interactionCelecoxib, TramadolSeglentis
How Celecoxib, Tramadol interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Celecoxib, Tramadol interactionChlorpheniramineChlor-Trimeton, Teldrin
How Chlorpheniramine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Chlorpheniramine interactionChlorpheniramine Maleate, Dextromethorphan HydrobromideCoricidin HBP Cough & Cold, Coricidin II Cough & Cold, Pediatric Vicks Formula 44m Cough & Cold Relief
How Chlorpheniramine Maleate, Dextromethorphan Hydrobromide interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Chlorpheniramine Maleate, Dextromethorphan Hydrobromide interactionChlorpheniramine Maleate, Hydrocodone BitartrateVituz
How Chlorpheniramine Maleate, Hydrocodone Bitartrate interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Chlorpheniramine Maleate, Hydrocodone Bitartrate interactionChlorpheniramine Polistirex, Codeine PolistirexTuzistra XR
How Chlorpheniramine Polistirex, Codeine Polistirex interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Chlorpheniramine Polistirex, Codeine Polistirex interactionChlorpheniramine Tannate, Phenylephrine TannateRicobid
How Chlorpheniramine Tannate, Phenylephrine Tannate interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Chlorpheniramine Tannate, Phenylephrine Tannate interactionChlorpheniramine Tannate, Phenylephrine Tannate, Pyrilamine TannateHistatan, R Tannamine, R-Tannate, Rhinatate, Tri Tannate, Triotann +1 more
How Chlorpheniramine Tannate, Phenylephrine Tannate, Pyrilamine Tannate interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Chlorpheniramine Tannate, Phenylephrine Tannate, Pyrilamine Tannate interactionChlorpheniramine, Hydrocodone, PseudoephedrineTussend
How Chlorpheniramine, Hydrocodone, Pseudoephedrine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Chlorpheniramine, Hydrocodone, Pseudoephedrine interactionChlorpheniramine, MethscopolamineAllerx
How Chlorpheniramine, Methscopolamine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Chlorpheniramine, Methscopolamine interactionChlorpheniramine, Methscopolamine, PhenylephrineAH Chew, DA, DA II, Dallergy, Dallergy ER, Dura Vent DA +9 more
How Chlorpheniramine, Methscopolamine, Phenylephrine interacts with Acetyl L-Carnitine 1000 Milligrams — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitineSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine + Chlorpheniramine, Methscopolamine, Phenylephrine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Acetyl L-Carnitine 1000 Milligrams 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.
Acetyl L-Carnitine
Acenocoumarol (Sintrom)
Theoretically, acetyl-L-carnitine might increase the anticoagulant effects of acenocoumarol.
L-carnitine, the parent compound of acetyl-L-carnitine, might enhance the anticoagulant effects of acenocoumarol, an oral anticoagulant that is similar to warfarin, but shorter-acting. There are at least two case reports of INR elevation when L-carnitine was taken with acenocoumarol. 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. It is unclear if such an interaction would also occur with acetyl-L-carnitine.
Serotonergic Drugs
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Animal research shows that acetyl-L-carnitine can increase levels of serotonin in the brain.
Thyroid Hormone
Theoretically, acetyl-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. It is unclear if such an interaction would occur with acetyl-L-carnitine.
Warfarin (Coumadin)
Theoretically, acetyl-L-carnitine might increase the anticoagulant effects of warfarin.
L-carnitine, the parent compound of acetyl-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 acetyl-L-carnitine and warfarin.
Brand information
Manufacturer and brand details for Acetyl L-Carnitine 1000 Milligrams, from the product label.
NutraBio
See all NutraBio products- Name
- NutraBio Labs, Inc.
- Street Address
- 564 Lincoln Blvd.
- City
- Middlesex
- State
- NJ
- ZipCode
- 08846
- Phone Number
- 732-748-8606
- Web Address
- www.nutrabio.com
Acetyl L-Carnitine 1000 Milligrams by NutraBio: Common Questions
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Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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The Full Monographs Behind Acetyl L-Carnitine 1000 Milligrams’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Acetyl L-Carnitine 1000 Milligrams'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 22 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.
Acetyl-l-carnitine 22 references
- Thal LJ, Carta A, Clarke WR, et al. A 1-year multicenter placebo-controlled study of acetyl-L-carnitine in patients with Alzheimer's Disease. Neurology 1996;47:705-11. PubMed
- Sano M, Bell K, Cote L, et al. Double-blind parallel design pilot study of acetyl levocarnitine in patients with Alzheimer's Disease. Arch Neurol 1992;49:1137-41. PubMed
- Spagnoli A, Lucca U, Menasce G, et al. Long-term acetyl-L-carnitine treatment in Alzheimer's Disease. Neurology 1991;41:1726-32. PubMed
- Brooks JO 3rd, Yesavage JA, Carta A, Bravi D. Acetyl L-carnitine slows decline in younger patients with Alzheimer's disease: a reanalysis of a double-blind, placebo-controlled study using the trilinear approach. Int Psychoger 1998;10:193-203. PubMed
- Pettegrew JW, Klunk WE, Panchalingam K, et al. Clinical and neurochemical effects of acetyl-L-carnitine in Alzheimer's disease. Neurobiol Aging 1995;16:1-4. PubMed
- Rai G, Wright G, Scott L, et al. Double-blind, placebo controlled study of acetyl-l-carnitine in patients with Alzheimer's dementia. Curr Med Res Opin 1990;11:638-47. 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
- Montgomery SA, Thal LJ, Amrein R. Meta-analysis of double blind randomized controlled clinical trials of acetyl-L-carnitine versus placebo in the treatment of mild cognitive impairment and mild Alzheimer's disease. Int Clin Psychopharmacol 2003;18:61-71.. PubMed
- Martinez E, Domingo P, Roca-Cusachs A. Potentiation of acenocoumarol action by L-carnitine. J Intern Med 1993;233:94.
- Hudson S, Tabet N. Acetyl-L-carnitine for dementia. Cochrane Database Syst Rev 2003;2:CD003158.. PubMed
- Bachmann HU, Hoffmann A. Interaction of food supplement L-carnitine with oral anticoagulant acenocoumarol. Swiss Med Wkly 2004;134:385. PubMed
- De Grandis D, Minardi C. Acetyl-L-carnitine (levacecarnine) in the treatment of diabetic neuropathy. A long-term, randomised, double-blind, placebo-controlled study. Drugs R D 2002;3:223-31. 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
- Sima AAF, Calvani M, Mehra M, et al. Acetyl-L-carnitine improves pain, nerve regeneration, and vibratory perception in patients with chronic diabetic neuropathy: An analysis of two randomized, placebo-controlled trials. Diabetes Care 2005;28:89-94.
- Youle, M. and Osio, M. A double-blind, parallel-group, placebo-controlled, multicentre study of acetyl L-carnitine in the symptomatic treatment of antiretroviral toxic neuropathy in patients with HIV-1 infection. HIV.Med. 2007;8(4):241-250.
- Brennan BP, Jensen JE, Hudson JI, Coit CE, Beaulieu A, Pope HG Jr, Renshaw PF, Cohen BM. A placebo-controlled trial of acetyl-L-carnitine and a-lipoic acid in the treatment of bipolar depression. J Clin Psychopharmacol. 2013 Oct;33(5):627-35.
- Ledinek AH, Sajko MC, Rot U. Evaluating the effects of amantadin, modafinil and acetyl-L-carnitine on fatigue in multiple sclerosis--result of a pilot randomized, blind study. Clin Neurol Neurosurg. 2013 Dec;115 Suppl 1:S86-9. PubMed
- Martinotti G, Andreoli S, Reina D, Di Nicola M, Ortolani I, Tedeschi D, Fanella F, Pozzi G, Iannoni E, D'Iddio S, Prof LJ. Acetyl-l-Carnitine in the treatment of anhedonia, melancholic and negative symptoms in alcohol dependent subjects. Prog Neuropsychop PubMed
- Baek SM, Zheng R, Seo EJ, Hwang DY, Kim BH. Pharmacokinetic comparisons of two acetyl-L-carnitine formulations in healthy Korean volunteers. Int J Clin Pharmacol Ther. 2015;53(11):980-6. PubMed
- Goodison G, Overeem K, de Monte V, Siskind D. Mania associated with self-prescribed acetyl-l-carnitine in a man with bipolar I disorder. Australas Psychiatry. 2017;25(1):13-4.
- Bruno A, Pandolfo G, Crucitti M, Lorusso S, Zoccali RA, Muscatello MR. Acetyl-L-Carnitine Augmentation of Clozapine in Partial-Responder Schizophrenia: A 12-Week, Open-Label Uncontrolled Preliminary Study. Clin Neuropharmacol. 2016;39(6):277-80. PubMed
- Veronese N, Stubbs B, Solmi M, Ajnakina O, Carvalho AF, Maggi S. Acetyl-L-Carnitine Supplementation and the Treatment of Depressive Symptoms: A Systematic Review and Meta-Analysis. Psychosom Med. 2018;80(2):154-9. 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