Acetyl-l-carnitine + Prednisone
Prednisone brand names: Deltasone, Cortan, Orasone, Prednisone, Prednicen-M, and others.
We found no known interaction between Acetyl-l-carnitine and Prednisone in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the label for Prednisone states a food rule worth keeping to, and the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.
Acetyl-l-carnitine and Prednisone
We checked these two against our interaction database. Here is what we found.
No Known Interaction Found
We did not find a documented interaction between Prednisone and Acetyl-l-carnitine in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.
If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.
Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.
Acetyl-l-carnitine safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Why No Interaction Is Listed for Prednisone
Interactions in our licensed database are recorded against drug classes, not just single drug names. Prednisone is filed under 7 classifications — including corticosteroids, cytochrome p450 2c19 (cyp2c19) inducers, immunosuppressants. Acetyl-l-carnitine has documented interactions with 4 drug classes — the most serious being acenocoumarol (sintrom) (moderate), serotonergic drugs (moderate) and thyroid hormone (moderate) — and none of Prednisone’s classifications are among them.
Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.
Acetyl-l-carnitine Does Interact With Other Medications
Acetyl-l-carnitine has 203 moderate known drug interactions in our database — Prednisone isn’t one of them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Acetyl-l-carnitine
We haven’t checked that one against Acetyl-l-carnitine yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Acetyl-l-carnitine. Pick one to open its full report.
Some Prednisone Products Have a Food Rule — Acetyl-l-carnitine Should Not Break It
At least one FDA label for a product containing Prednisone says to take it with food. If you take Acetyl-l-carnitine on an empty stomach out of habit, keep them separate — and take Prednisone with a meal where the label says to.
This may not be true of your version. Food instructions belong to the product, not the ingredient: two Prednisone products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.
DOSAGE AND ADMINISTRATION Gastric irritation may be reduced if taken before, during, or immediately after meals or with food or milk.
From the Dosage and Administration section of the FDA label we read for Prednisone — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›
A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.
Questions About Acetyl-l-carnitine or Prednisone
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Acetyl-l-carnitine or Prednisone, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:
- Does Prednisone Stop Cough or Clear Mucus? ›
- Does Activated Charcoal Remove Dexamethasone From the Body? ›
- Concerns Taking Prednisone With Other Drugs For Ménière's Disease ›
Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.
See Every Supplement That Interacts With Prednisone
This page covers Acetyl-l-carnitine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Prednisone page lists 208 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Grapefruit (major), Lily-of-the-valley (major), St. John's Wort (major) and Acacia Rigidula (moderate).
By severity: 4 major · 168 moderate · 36 minor.
From our pharmacist’s overview on the Prednisone page
“Prednisone (Deltasone) suppresses the immune system to control inflammation, and that mechanism shapes most of what can go wrong on this 208-ingredient list, which I read as one to approach carefully rather than casually. Four entries rate major.”
Reviewed by 2 · Jul 18, 2026
Taking Acetyl-l-carnitine as Part of a Dietary Supplement Product? Check It for Interactions
We hold 405 real supplement products containing Acetyl-l-carnitine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Acetyl-l-carnitine. Even though Acetyl-l-carnitine itself has no known interaction with Prednisone, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Acetyl-l-carnitine and Prednisone Sit Against Everything Else
Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.
#107 of 1,452 supplements looked up here in the last 7 days
#22 of 2,830 medications looked up here in the last 7 days
Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.
Where does our data come from?
- Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
- Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Acetyl-l-carnitine reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Acetyl-l-carnitine and Prednisone records this page draws on were last updated July 10, 2026.
- What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
About Acetyl-l-carnitine
What is Acetyl-l-carnitine?
- Memory and cognitive support
- Nerve pain (neuropathy)
- Energy and fatigue
- Age-related decline
- Male fertility
- Mood support
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 memory-related conditions, though the evidence is mixed and often limited. It is generally well tolerated for short-term use, but you should talk with your pharmacist or doctor before starting it.
Not applicable (a naturally occurring compound made in the body) · Capsules, tablets, powder, and liquid
An interaction check asks whether these two react with each other — it does not ask whether Acetyl-l-carnitine is a good idea for someone in your situation. Here is what our Acetyl-l-carnitine record says about it on its own.
Acetyl-l-carnitine: dosing
There is no single official dose of Acetyl-L-carnitine for any condition. Taking it with food may help reduce stomach upset. Do not assume that taking more will work better, as higher amounts can increase the chance of side effects.
From our Acetyl-l-carnitine monograph — the full record covers uses, side effects and every documented interaction.
About Prednisone
What Is Prednisone Used For?
Brand names: Deltasone, Cortan, Orasone, Prednisone, Prednicen-M, Meticorten, Sterapred, Rayos
Prednisone treats a broad range of conditions where the body's immune system is overactive or inflammation needs to be controlled. It works across many organ systems, from the lungs and skin to the joints and blood.
Doctors prescribe it for conditions like asthma, severe allergies, Crohn's disease, multiple sclerosis flares, certain cancers, and to prevent organ rejection after transplant, among many others.
Most-Reported Side Effects for Prednisone
From FAERS, the FDA’s public side-effect reporting system (499,938 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Acetyl-l-carnitine
Browse every other medication we’ve checked against Acetyl-l-carnitine — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
203 interactions
- Methylphenidate ›
- Levothyroxine ›
- Fentanyl ›
- Carbamazepine ›
- Dextromethorphan ›
- Phenylephrine ›
- Trimipramine ›
- Buprenorphine ›
- Conjugated Estrogens ›
- Nortriptyline ›
- Selegiline ›
- Sumatriptan Succinate ›
- Testosterone Undecanoate ›
- Aripiprazole ›
- Cyclobenzaprine ›
- Desipramine ›
- Doxepin ›
- Duloxetine ›
- Levothyroxine Sodium ›
- Liotrix ›
- Metoclopramide ›
- Paroxetine ›
- Prucalopride ›
- Tramadol ›
- Valproic Acid ›
- Vortioxetine ›
- Warfarin Sodium ›
- Almotriptan ›
- Aripiprazole Lauroxil ›
- Chlorpheniramine ›
- Clozapine ›
- Desiccated Thyroid Extract ›
- Desiccated Thyroid Extract (prescription Drug) ›
- Desvenlafaxine ›
- Dexchlorpheniramine ›
- Dihydroergotamine ›
- Fluoxetine ›
- Granisetron ›
- Imipramine ›
- Linezolid ›
- Lithium Carbonate (prescription Drug) ›
- Menotropins ›
- Meperidine ›
- Methylene Blue ›
- Methylphenidate Hydrochloride ›
- Quetiapine ›
- Risperidone ›
- Rizatriptan Benzoate ›
- Tapentadol ›
- Trazodone ›
- Venlafaxine ›
- Acenocoumarol ›
- Alosetron ›
- Amitriptyline ›
- Amoxapine ›
- Brexpiprazole ›
- Buspirone ›
- Citalopram ›
- Dexamfetamine ›
- Dexmethylphenidate ›
Showing 60 of 203 moderate interactions — see all 203 on the Acetyl-l-carnitine page.
No interaction 2,626 drugs checked — show the list
We also checked Acetyl-l-carnitine against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Amlodipine ›
- Testosterone ›
- Losartan Potassium ›
- Metoprolol ›
- Aspirin ›
- Ivermectin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Tadalafil ›
- Acetaminophen ›
- Clopidogrel ›
- Valacyclovir ›
- Atorvastatin ›
- Docusate ›
- Hydroxyurea ›
- Abemaciclib ›
- Ibuprofen ›
- Semaglutide ›
- Tirzepatide ›
- Propranolol ›
- Acyclovir ›
- Bupropion ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Bendamustine ›
- Doxycycline ›
- Lamotrigine ›
- Methotrexate ›
- Acetaminophen, Codeine ›
- Gabapentin ›
- Amphetamine ›
- Pregabalin ›
- Isotretinoin ›
- Azithromycin ›
- Clonazepam ›
- Omeprazole ›
- Amlodipine Besylate ›
- Letrozole ›
- Ciprofloxacin ›
- Naproxen ›
- Bisoprolol ›
- Acetaminophen, Oxycodone ›
- Dapsone ›
- Diazepam ›
- Cyclopentolate ›
- Candesartan Cilexetil ›
- Mannitol ›
- Cephalexin ›
- Roxithromycin ›
- Pegunigalsidase Alfa-iwxj ›
- Atorvastatin Calcium ›
- Acetaminophen, Dextromethorphan, Doxylamine ›
- Daptomycin ›
- Finasteride ›
- Acetaminophen, Caffeine, Codeine ›
- Hexobarbitone ›
- Valsartan ›
- Levetiracetam ›
Showing the 60 most looked-up of 2,626 medications checked with no known interaction — see the full Acetyl-l-carnitine list.
Acetyl-l-carnitine References
The 22 references that drive our Acetyl-l-carnitine monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.
- 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
Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Prednisone Is Linked to Lower Levels of 8 Nutrients
Natural Medicines records Prednisone as a medicine that can lower these. This is not an interaction with Acetyl-l-carnitine — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Prednisone nutrient depletion report ›
Acetyl-l-carnitine is itself a nutrient we track — see which medications may deplete ACETYL-L-CARNITINE.
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Acetyl-l-carnitine and Prednisone Together: Common Questions
Is it safe to take Acetyl-l-carnitine with Prednisone?
Do Acetyl-l-carnitine and Prednisone have any of the same side effects?
Should I take Acetyl-l-carnitine and Prednisone at the same time of day?
How was the Acetyl-l-carnitine and Prednisone combination checked?
Does Acetyl-l-carnitine interact with any other medications?
Does Prednisone interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.