L-Carnitine 1500 Grape Crush Ingredients & Drug Interactions
by NutraKey Health Performance
What is this page for?
First and foremost: checking L-Carnitine 1500 Grape Crush 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 1500 Grape Crush is a dietary supplement by NutraKey Health Performance with 6 active ingredients. Its ingredients are commonly taken for morning sickness in pregnancy, premenstrual syndrome (pms), preventing or treating b6 deficiency.Based on those ingredients, 413 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Vitamin B6, Acetyl L-Carnitine, L-Carnitine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against L-Carnitine 1500 Grape Crush by NutraKey Health Performance
Ask about any prescription or over-the-counter medication and we check it for interactions with L-Carnitine 1500 Grape Crush by NutraKey Health Performance — 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 L-Carnitine 1500 Grape Crush by NutraKey Health Performance
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Low disclosure
L-Carnitine 1500 Grape Crush contains five active ingredients. Three of them are carnitine compounds: L-carnitine, acetyl L-carnitine, and L-carnitine-L-tartrate — they're related forms that support energy production in your cells.
You'll also find vitamin B6 (needed for brain and nerve function) and pantothenic acid (a B vitamin that plays a role in metabolism). The rest is inactive ingredients — water, glycerin, citric acid, flavoring, malic acid, sucralose, and potassium sorbate — which are fillers, flavor enhancers, and preservatives that help the liquid stay stable.
Does it work?
Not established
The carnitine forms in this product are effective for treating L-carnitine deficiency and possibly effective for high cholesterol, congestive heart failure, and angina. Acetyl L-carnitine is possibly effective for age-related cognitive decline, Alzheimer's disease, alcohol use disorder, diabetic neuropathy, and depression.
Vitamin B6 is effective for treating vitamin B6 deficiency, sideroblastic anemia, and pyridoxine-dependent epilepsy; it's likely effective for high homocysteine and possibly effective for pregnancy-related nausea and vomiting. Pantothenic acid is effective for pantothenic acid deficiency, but the evidence isn't established for most other uses we hold data on.
How safe is it?
Well-documented data
Vitamin B6 is well tolerated in doses below 100 mg daily, but high doses over time can damage nerves — doses exceeding 1,000 mg daily carry the most risk, though neuropathy can occur at lower amounts too. The most common side effects from vitamin B6 are abdominal pain, headache, heartburn, nausea, and vomiting.
Pantothenic acid is generally well tolerated; common side effects are minimal, though diarrhea has been reported orally. The L-carnitine forms are well tolerated but can cause stomach upset (nausea, diarrhea, abdominal pain, heartburn), reduced appetite, and a fishy-smelling body odor.
Seizures are rare. Acetyl L-carnitine may also cause agitation, dry mouth, headache, and insomnia.
For pregnancy, vitamin B6 is likely safe but also rated possibly unsafe — talk with your doctor. Pantothenic acid is likely safe in pregnancy.
L-carnitine pregnancy safety data isn't on file — ask your pharmacist. For breastfeeding, vitamin B6 and pantothenic acid are likely safe; L-carnitine and L-carnitine-L-tartrate are possibly safe; acetyl L-carnitine safety while breastfeeding is unknown, so it's best avoided unless your doctor advises otherwise.
Meds to double-check
Moderate interaction found
Moderate-severity interactions: if you take blood thinners (warfarin, acenocoumarol), check first — the carnitine forms may increase bleeding risk. Also check if you're on blood pressure medications, thyroid hormone replacement, seizure medications, or antidepressants — vitamin B6 and the carnitine compounds can affect how these work.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.
This product may help with L-carnitine deficiency and possibly support heart health and cholesterol levels. If you take blood thinners, thyroid medication, seizure drugs, blood pressure meds, or antidepressants, check with us before starting — several ingredients interact with these.
Pregnancy or breastfeeding? Talk to your pharmacist about vitamin B6 and acetyl L-carnitine first.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 5 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 22, 2023.
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 1500 Grape Crush, straight from the product label.
| Brand | NutraKey Health Performance |
|---|---|
| Barcode (UPC) | 820103980074 |
| Net contents | 16 Fluid Ounce(s) |
| Market status | On market |
| Date entered into DSLD | Jun 22, 2023 |
| DSLD ID | 287410 |
| Product type | Other Combinations |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), 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 L-Carnitine 1500 Grape Crush by NutraKey Health Performance , sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calories | 0 Calorie(s) | -- |
| Total Carbohydrates | 0 NP | -- |
| Sugar | 0 NP | -- |
| Vitamin B6 | 2 mg | 100% |
| Total Fat | 0 NP | -- |
| Pantothenic Acid | 10 mg | 100% |
| L-Carnitine | 0 NP | -- |
| Acetyl L-Carnitine | 0 NP | -- |
| L-Carnitine-L-Tartrate | 0 NP | -- |
| L-Carnitine, Acetyl L-Carnitine, L-Carnitine-L-Tartrate | 1500 mg | -- |
Other ingredients: Water, Glycerin, Citric Acid, Natural & Artificial Flavors, Malic Acid, Sucralose, Potassium Sorbate
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.
Formulation
Accelerate your weight loss Boost energy and fat burning Enhanced fat metabolism
Convert stored fat to energy Energy stored as fat Carnitine shuttles fat cells to mitochondria Mitochondria converts fat into energy Increased fat burning & energy
Stimulant free fat burn
Energy & metabolism Boost endurance Healthy energy Support fat burning
Non GMO Gluten free Dye free Paraben free
Formula
L-Carnitine is an amino acid responsible for shuttling fatty acids into the mitochondria for energy production. Enhanced mitochondrial activity results in an increase in clean energy and a boost to fat burning.
L-Carnitine can be a stimulant-free source of energy that supports increased fatty acid metabolism. Carnitine is a great alternative to synthetic fat burners that rely on stimulant-heavy formulas for increased metabolism.
Active dose Our L-Carnitine contains a biologically active dose of 1500mg per serving. Although low levels of carnitine can be found in a number of natural sources, at threshold dosage must be met to experience the performance enhancing benefits of L-Carnitine.
Grape crush natural & artificial flavors
General Statements
Achieve your goals
BPA free
Follow us for free giveaways
FDA Statement of Identity
Dietary Supplement
Suggested/Recommended/Usage/Directions
Recommended Use Female Up to 145lbs. 1-3 servings per day Over 145lbs. 2-4 servings per day Male Up to 145lbs. 1-3 servings per day Over 145lbs. 2-4 servings per day When to take Mornings Get a boost of clean energy by taking 1 serving in the morning, or add another serving when you need and extra boost. Training Support fat metabolism & endurance during training by taking 1 serving immediately before training. Add another serving after training for an energy boost. Meals Provide support for healthy food metabolism by taking 1 serving with your meals.
For best results: Combine with TRU Burn to further support energy & fat metabolism.
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.
Brand IP Statement(s)
NutraKey Health for every lifestyle
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
L-Carnitine 1500 Grape Crush by NutraKey Health Performance 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 1500 Grape Crush by NutraKey Health Performance
These are the 6 active ingredients this product is made of. Select any to open its full monograph.
Serving size0.33 Capful(s) 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
Vitamin B6
Interacts with210 drugs
Vitamin B6 (pyridoxine) is an essential water-soluble vitamin that your body needs for metabolism, brain function, and making red blood cells. It is b...
Vitamin B6 monograph & interactionsPantothenic Acid
No knowninteractions
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 & interactionsL-Carnitine, Acetyl L-Carnitine, L-Carnitine-L-Tartrate
Other (inactive) ingredients: Water, Glycerin, Citric Acid, Natural & Artificial Flavors, Malic Acid, Sucralose, Potassium Sorbate. These complete the product’s ingredient list but are not active constituents.
L-Carnitine 1500 Grape Crush by NutraKey Health Performance Drug Interactions
HelloPharmacist Interaction Report
L-Carnitine 1500 Grape Crush by NutraKey Health Performance contains five active ingredients, several of which interact with medications.
The most serious interaction involves the three carnitine forms (L-carnitine, acetyl L-carnitine, and L-carnitine-L-tartrate) and blood thinners (anticoagulants) like warfarin and acenocoumarol — these can theoretically increase bleeding risk.
Read the full breakdown — every affected drug type, severity by severity
Vitamin B6 in this product has Moderate interactions with blood pressure medications (antihypertensive drugs), the heart rhythm drug amiodarone, and seizure medications (phenobarbital and phenytoin). High doses of vitamin B6 may reduce how well phenobarbital and phenytoin work by speeding up how your body breaks them down.
Vitamin B6 may also add to the blood-pressure-lowering effects of antihypertensive drugs.
The three carnitine ingredients also interact with thyroid hormone replacement therapy — they may decrease how well it works. Additionally, acetyl L-carnitine can theoretically increase the risk of serotonin syndrome (a condition from too much serotonin activity) when taken with serotonergic drugs like certain antidepressants.
Altogether, these interactions span 411 individual medications.
If you take any prescription medication — especially blood thinners, seizure drugs, blood pressure medications, thyroid hormone, or antidepressants — run it through the checker on this page before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against L-Carnitine 1500 Grape Crush?
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 1500 Grape Crush interact with 413 drugs. Click any drug to see the details.
3 of the 6 ingredients in L-Carnitine 1500 Grape Crush interact with drugs. Each result below shows which ingredient is responsible. Vitamin B6 Acetyl L-Carnitine L-Carnitine
AcebutololRhotral, Sectral
How Acebutolol interacts with L-Carnitine 1500 Grape Crush — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Acebutolol interactionAcenocoumarolSintrom
How Acenocoumarol interacts with L-Carnitine 1500 Grape Crush — through 2 ingredients. Tap an ingredient for the detail:
Acetyl L-carnitineAcenocoumarol (sintrom) Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the anticoagulant effects of acenocoumarol.
Read the full Acetyl L-carnitine + Acenocoumarol interactionL-carnitine-l-tartrateAcenocoumarol (sintrom) Moderate
Interaction Summary
Theoretically, L-carnitine might increase the anticoagulant effects of acenocoumarol.
Read the full L-carnitine-l-tartrate + Acenocoumarol interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, PhenyltoloxamineNorel Plus
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interactionAcetaminophen, Chlorpheniramine, PseudoephedrineAlka-Seltzer PLUS Liquid Gels, Children's Tylenol Cold, Codimal, Comtrex, Extra Strength Tylenol Allergy Sinus, Lorsin +3 more
How Acetaminophen, Chlorpheniramine, Pseudoephedrine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Chlorpheniramine, Pseudoephedrine interactionAcetaminophen, DextromethorphanTylenol Cough Ex Strength
How Acetaminophen, Dextromethorphan interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Dextromethorphan interactionAcetaminophen, Dextromethorphan, Doxylamine, PseudoephedrineVicks NyQuil
How Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylephrineConar-A
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylpropanolamineAnatuss
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PseudoephedrineRobitussin Cold, Severe Cold, Suphedrine Cold/Cough
How Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Phenylpropanolamine, PyrilamineTheracaps
How Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interactionAcetaminophen, Dextromethorphan, PseudoephedrineAlka-Seltzer PLUS Flu Liquid Gels, Non Aspirin Cold Caps, Tylenol Cold, Tylenol Flu Daytime Ex Strength, Tylenol Flu Ex Strength
How Acetaminophen, Dextromethorphan, Pseudoephedrine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, MeperidineDemerol APAP
How Acetaminophen, Meperidine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Meperidine interactionAcetaminophen, Phenylephrine, ChlorpheniramineSuper Cold Tabs
How Acetaminophen, Phenylephrine, Chlorpheniramine interacts with L-Carnitine 1500 Grape Crush — 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 + Acetaminophen, Phenylephrine, Chlorpheniramine interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with L-Carnitine 1500 Grape Crush — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Acetazolamide interactionAliskirenTekturna
How Aliskiren interacts with L-Carnitine 1500 Grape Crush — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Aliskiren interactionAlmotriptanAlmogran, Axert
How Almotriptan interacts with L-Carnitine 1500 Grape Crush — 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 + Almotriptan interactionAlosetronLotronex
How Alosetron interacts with L-Carnitine 1500 Grape Crush — 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 + Alosetron interactionAmbrisentanLetairis, Volibris
How Ambrisentan interacts with L-Carnitine 1500 Grape Crush — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Ambrisentan interactionAmilorideAmilamont, Midamor
How Amiloride interacts with L-Carnitine 1500 Grape Crush — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Amiloride interactionEach ingredient & the kinds of drugs it affects
For each ingredient in L-Carnitine 1500 Grape Crush with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.
Vitamin B6
Amiodarone (Cordarone)
Theoretically, vitamin B6 might increase the photosensitivity caused by amiodarone.
Despite initial case reports suggesting that pyridoxine may have a protective effect against amiodarone-induced photosensitivity, preliminary clinical research suggests that pyridoxine may actually exacerbate this adverse effect.
Antihypertensive Drugs
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Research in hypertensive rats shows that vitamin B6 can decrease systolic blood pressure. Similarly, clinical research in patients with hypertension shows that taking high doses of vitamin B6 may reduce systolic and diastolic blood pressure, possibly by reducing plasma levels of epinephrine and norepinephrine.
Phenobarbital (Luminal)
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Preliminary clinical evidence suggests that vitamin B6 200 mg daily can reduce plasma levels of phenobarbital, possibly by increasing metabolism. It is not known whether lower doses have any effect. Advise people taking phenobarbital to avoid high doses of vitamin B6.
Phenytoin (Dilantin)
High doses of vitamin B6 may reduce the levels and clinical effects of phenytoin.
Preliminary clinical evidence suggests that vitamin B6 200 mg daily can reduce plasma levels of phenytoin, possibly by increasing metabolism. It is not known whether lower doses have any effect. Advise people taking phenytoin to avoid high doses of vitamin B6.
Levodopa
Vitamin B6 may increase the metabolism of levodopa when taken alone, but not when taken in conjunction with carbidopa.
Vitamin B6 (pyridoxine) enhances the metabolism of levodopa, reducing its clinical effects. However, this interaction does not occur when carbidopa is used concurrently with levodopa (Sinemet). Therefore, it is not likely to be a problem in most people.
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.
L-Carnitine
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 1500 Grape Crush, from the product label.
NutraKey Health Performance
See all NutraKey Health Performance products- Name
- Nutakey
- Street Address
- 975 Bennett Drive
- City
- Longwood
- State
- FL
- ZipCode
- 32750
- Web Address
- nutrakeyhealth.com
L-Carnitine 1500 Grape Crush by NutraKey Health Performance : Common Questions
Does L-Carnitine 1500 Grape Crush by NutraKey Health Performance interact with any medications?
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Does vitamin B6 really do anything at the dose in this product?
I heard L-carnitine can cause a fishy smell. Is that a real thing?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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 1500 Grape Crush’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Vitamin B6
Interacts with 210 drugsVitamin B6 (pyridoxine) is an essential water-soluble vitamin that your body needs for metabolism, brain function, and making red blood cells. It is best known for helping with pregnancy-rel...
Read the full Vitamin B6 monograph → Herb & supplement monographPantothenic 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 monographL-carnitine
Interacts with 19 drugsL-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 → Herb & supplement monographAcetyl-l-carnitine
Interacts with 203 drugsAcetyl-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 memory-related conditions, though the evide...
Read the full Acetyl-l-carnitine monograph →Sources & How We Checked
L-Carnitine 1500 Grape Crush'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 106 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.
Vitamin B6 32 references
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- Hatzitolios, A., Iliadis, F., Katsiki, N., and Baltatzi, M. Is the anti-hypertensive effect of dietary supplements via aldehydes reduction evidence based? A systematic review. Clin Exp.Hypertens. 2008;30(7):628-639. PubMed
- Vasdev, S., Ford, C. A., Parai, S., Longerich, L., and Gadag, V. Dietary vitamin B6 supplementation attenuates hypertension in spontaneously hypertensive rats. Mol.Cell Biochem. 1999;200(1-2):155-162.
- de, Vogel S., Dindore, V., van, Engeland M., Goldbohm, R. A., van den Brandt, P. A., and Weijenberg, M. P. Dietary folate, methionine, riboflavin, and vitamin B-6 and risk of sporadic colorectal cancer. J Nutr 2008;138(12):2372-2378. PubMed
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- Aybak, M., Sermet, A., Ayyildiz, M. O., and Karakilcik, A. Z. Effect of oral pyridoxine hydrochloride supplementation on arterial blood pressure in patients with essential hypertension. Arzneimittelforschung. 1995;45(12):1271-1273.
- Lal, K. J., Dakshinamurti, K., and Thliveris, J. The effect of vitamin B6 on the systolic blood pressure of rats in various animal models of hypertension. J Hypertens. 1996;14(3):355-363. PubMed
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- Mahmoud A, Tabassum S, Al Enazi S, et al. Amelioration of levetiracetam-induced behavioral side effects by pyridoxine. A randomized double blind controlled study. Pediatr Neurol 2021;119:15-21. PubMed
- Gupta M, Gallante B, Bamberger JN, et al. Prospective randomized evaluation of idiopathic hyperoxaluria treatments. J Endourol 2021;35(12):1844-1851. PubMed
- Li H, Chen M, Liang S, et al. Excessive vitamin B6 during treatment is related to poor prognosis of patients with nasopharyngeal carcinoma: A U-shaped distribution suggests low dose supplement. Clin Nutr 2021;40(4):2293-2300. PubMed
- Tanigawa J, Nabatame S, Tominaga K, et al. High-dose pyridoxine treatment for inherited glycosylphosphatidylinositol deficiency. Brain Dev 2021;43(6):680-687. PubMed
- Committee on Practice Bulletins-Obstetrics. ACOG Practice Bulletin No. 189: Nausea And Vomiting Of Pregnancy. Obstet Gynecol. 2018;131(1):e15-e30. PubMed
Pantothenic Acid 11 references
- McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
- 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
- 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
- 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
- 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
- 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
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- 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
- Han J, Warshaw EM. Allergic Contact Dermatitis to Panthenol in "Hypoallergenic" Products. Dermatitis 2023;34(1):62-63. PubMed
- 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
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L-carnitine 41 references
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- 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
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- 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
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- 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
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- 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
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- 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
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Acetyl-l-carnitine 22 references
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- 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.
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