Interactions on record — worth a quick check against your medications. Check your meds →
Dietary supplement

NewVigor Ingredients & Drug Interactions

by Vitalast

NewVigor label
See full label image
Capsule Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking NewVigor against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

NewVigor is a dietary supplement by Vitalast with 4 active ingredients. Its ingredients are commonly taken for memory and cognitive support, nerve pain (neuropathy), energy and fatigue.Based on those ingredients, 644 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are L-Arginine Hydrochloride, Acetyl L-Carnitine HCl, New Zealand Deer Antler Velvet. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against NewVigor by Vitalast

Ask about any prescription or over-the-counter medication and we check it for interactions with NewVigor by Vitalast — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of NewVigor by Vitalast

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 4 of its 4 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

NewVigor contains four active ingredients. Acetyl L-carnitine is a compound related to an amino acid and is used for age-related cognitive decline, Alzheimer disease, alcohol use disorder, diabetic nerve pain, and depression—all rated possibly effective.

L-arginine hydrochloride is an amino acid ingredient, though no effectiveness ratings are on file for it in our data. New Zealand deer antler velvet and Peruvian maca are included as well, but evidence to rate their effectiveness for the conditions they're used for (sexual desire, athletic performance, bone health, among others) is insufficient.

The capsules also contain gelatin, rice flour, and magnesium stearate as inactive ingredients.

Does it work?

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

There isn't enough reliable clinical evidence to rate this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: Male sexual function and vitality.
  • We looked for evidence on: Erectile dysfunction (ED), Age-related testosterone deficiency, Sexual desire, Male infertility, Antidepressant-induced sexual dysfunction, Peyronie disease — and 3 related terms.
  • The closest evidence on file: Maca is rated "Insufficient Reliable Evidence To Rate" for Antidepressant-induced sexual dysfunction (Natural Medicines).
  • Also on file: Maca is rated "Insufficient Reliable Evidence To Rate" for Sexual desire, Age-related testosterone deficiency, Male infertility.
  • Also on file: Deer Velvet is rated "Insufficient Reliable Evidence To Rate" for Erectile dysfunction (ED), Sexual desire.

Acetyl L-carnitine is rated possibly effective for age-related memory loss, Alzheimer disease, alcohol-related brain changes, diabetic neuropathy, and depression. The evidence supports a potential benefit in these areas, though it is not definitive.

For L-arginine, New Zealand deer antler velvet, and Peruvian maca, the evidence we hold is insufficient to rate their effectiveness—meaning the scientific data is too limited or mixed to say whether they work for their intended uses. That does not mean they do not work, only that we cannot establish it from the available research.

The evidence, ingredient by ingredient Acetyl-l-carnitine L-arginine Deer Velvet Maca

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

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

Why this rating?
  • We hold adverse-effect (side-effect) data for 3 of the 4 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 4 of 4.
  • General safety write-ups exist for 4 of 4.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Acetyl L-carnitine is generally well tolerated in the short term, but long-term safety is not fully established. The most common side effects are agitation, dry mouth, headache, insomnia, and reduced appetite; a metabolite can cause a fishy odor in urine, breath, and sweat.

Some people report nausea, vomiting, diarrhea, or gastrointestinal upset, though these do not occur more often than with placebo in most studies. Safety while breastfeeding is unknown, and the facts advise against it.

L-arginine is often well tolerated short-term but can lower blood pressure and may not be safe for everyone; it should be used only under medical supervision. Common side effects are abdominal pain, bloating, nausea, diarrhea, headache, insomnia, and flushing.

Safety during pregnancy and breastfeeding is not rated in our data. New Zealand deer antler velvet appears generally well tolerated short-term, though long-term safety and product quality are not well studied; it should be avoided in pregnancy and breastfeeding.

Peruvian maca is generally well tolerated as a food, but supplement safety has not been studied long term; fresh, uncooked maca may cause stomach pain, and it should be avoided in pregnancy and breastfeeding.

Side effects, ingredient by ingredient Acetyl-l-carnitine L-arginine Deer Velvet Maca

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

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

Why this rating?
  • 3 of the 4 matched ingredients can interact with medications — Deer Velvet, Acetyl-l-carnitine, L-arginine.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 644 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Double-check this product before you start if you take serotonergic drugs (antidepressants, certain pain or migraine medications)—acetyl L-carnitine may increase serotonin-related side effects. Also verify any blood thinners (warfarin, acenocoumarol), blood pressure medications (ACE inhibitors, ARBs, or other antihypertensives), potassium-sparing diuretics, diabetes medications, or thyroid hormone replacement.

All are Moderate interactions with one or more ingredients.

Check your own medication Run your meds through the checker above

The bottom line

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

This product is most appropriate for people interested in cognitive support or managing depression, under the guidance of a pharmacist or doctor—especially if you take serotonergic medications, blood thinners, blood pressure drugs, or thyroid replacement. If you take any prescription medication, check it against this product before starting.

The ingredient safety profile is generally manageable short-term, but long-term data are limited for most components.

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

Assessment coverage: 4 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jan 25, 2018.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about NewVigor, straight from the product label.

Brand Vitalast
Barcode (UPC) 837654237670
Net contents 120 Capsule(s)
Market status On market
Date entered into DSLD Jan 25, 2018
DSLD ID 82936
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for NewVigor by Vitalast, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
2 Capsule(s)
Maximum serving Sizes:
5 Capsule(s)
Servings per container
24
UPC/BARCODE
837654237670
IngredientAmount% DV
Acetyl L-Carnitine HCl1000 mg--
L-Arginine Hydrochloride2100 mg--
New Zealand Deer Antler Velvet500 mg--
Peruvian Maca500 mg--

Other ingredients: Gelatin Capsule, Rice Flour, Magnesium Stearate

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Suggested/Recommended/Usage/Directions

NewVigor may also be taken with our companion product, NewVigor Boost.

Suggested Use: 2 to 5 capsules, once or twice daily. We suggest starting with 5 capsules daily.

Precautions

Note: If you have a medical condition or are taking medication, consult your doctor before using this product. Although designed primarily for men, the product may be used by women, but should not be used if pregnant or nursing.

Discontinue use and consult your doctor if any adverse reactions occur.

Not recommended for use by persons under the age of 18.

Keep out of the reach of children.

Do not use if safety seal is broken or missing.

Storage

Store in a cool, dry place.

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

With Deer Antler Velvet

General Statements

Daily nutritional support for optimal sexual heatlh

FDA Statement of Identity

Dietary Supplement

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

See for yourself

NewVigor by Vitalast label

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

NewVigor label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in NewVigor by Vitalast

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Capsule(s) Dosage formCapsule Servings per container24 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.

Acetyl L-Carnitine HCl

Interacts with
203 drugs
1000 mg per serving

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 HCl monograph & interactions

L-Arginine Hydrochloride

Interacts with
403 drugs
2100 mg per serving

L-arginine is an amino acid that the body uses to make nitric oxide, a substance that helps blood vessels relax and widen. It is popularly used for bl...

L-Arginine Hydrochloride monograph & interactions

New Zealand Deer Antler Velvet

Interacts with
52 drugs
500 mg per serving

Deer velvet is a traditional remedy made from the soft, growing antlers of deer or elk, and it is most often promoted for energy, athletic performance...

New Zealand Deer Antler Velvet monograph & interactions

Peruvian Maca

No known
interactions
500 mg per serving

Maca is a nutrient-rich Andean root often used for energy, libido, and menopause symptoms. Early studies suggest it may modestly help sexual desire an...

Peruvian Maca monograph & interactions

Other (inactive) ingredients: Gelatin Capsule, Rice Flour, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.

Interaction report

NewVigor by Vitalast Drug Interactions

Want to check YOUR meds against NewVigor?

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.

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644Drugs
593 Moderate 51 Minor

Ingredients driving the most interactions

L-Arginine Hydrochloride 403
Acetyl L-Carnitine HCl 203
New Zealand Deer Antler Velvet 52

Individual Drug Interactions

The ingredients in NewVigor interact with 644 drugs. Click any drug to see the details.

3 of the 4 ingredients in NewVigor interact with drugs. Each result below shows which ingredient is responsible. L-Arginine Hydrochloride Acetyl L-Carnitine HCl New Zealand Deer Antler Velvet

Each ingredient & the kinds of drugs it affects

For each ingredient in NewVigor 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.

L-Arginine Hydrochloride9 drug types · 403 drugs

Ace Inhibitors (Aceis)

Theoretically, concomitant use of L-arginine and ACE inhibitors may increase the risk for hypotension and hyperkalemia.
Combining L-arginine with some antihypertensive drugs, especially ACE inhibitors, seems to have additive vasodilating and blood pressure-lowering effects. Furthermore, ACE inhibitors can increase potassium levels. Use of L-arginine has been associated with hyperkalemia in some patients. Theoretically, concomitant use of ACE inhibitors with L-arginine may increases the risk of hyperkalemia.

Likelihood Probable Evidence D
Angiotensin Receptor Blockers (Arbs)

Theoretically, concomitant use of L-arginine and ARBs may increase the risk of hypotension and hyperkalemia.
L-arginine increases nitric oxide, which causes vasodilation. Combining L-arginine with ARBs seems to increase L-arginine-induced vasodilation. Furthermore, ARBs can increase potassium levels. Use of L-arginine has been associated with hyperkalemia in some patients. Theoretically, concomitant use of ARBs with L-arginine may increases the risk of hyperkalemia.

Likelihood Probable Evidence D
Anticoagulant/Antiplatelet Drugs

Theoretically, concomitant use of L-arginine with anticoagulant and antiplatelet drugs might have additive effects and increase the risk of bleeding.
Preliminary research suggests that L-arginine infusions reduce platelet aggregation in humans. The clinical significance of this effect is unclear.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, concomitant use of L-arginine might have additive effects with antidiabetes drugs.
Preliminary clinical research shows that L-arginine decreases blood glucose levels in patients with type 2 diabetes.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.
L-arginine increases nitric oxide, which causes vasodilation. Clinical evidence shows that L-arginine can reduce blood pressure in some individuals with hypertension. Furthermore, combining L-arginine with some antihypertensive drugs seems to have additive vasodilating and blood pressure-lowering effects.

Likelihood Probable Evidence D
Isoproterenol (Isuprel)

Theoretically, concurrent use of isoproterenol and L-arginine might result in additive effects and hypotension.
Preliminary clinical evidence suggests that L-arginine enhances isoproterenol-induced vasodilation in patients with essential hypertension or a family history of essential hypertension.

Likelihood Probable Evidence D
Potassium-Sparing Diuretics

Theoretically concomitant use of potassium-sparing diuretics with L-arginine may increases the risk of hyperkalemia.
Potassium-sparing diuretics can increase potassium levels. Use of L-arginine has been associated with hyperkalemia in some patients.

Likelihood Possible Evidence D
Sildenafil (Viagra)

Theoretically, concurrent use of sildenafil and L-arginine might increase the risk for hypotension.
In vivo, concurrent use of L-arginine and sildenafil has resulted in increased vasodilation. Theoretically, concurrent use might have additive vasodilatory and hypotensive effects. However, in studies evaluating the combined use of L-arginine and sildenafil for erectile dysfunction, hypotension was not reported.

Likelihood Possible Evidence D
Testosterone

Theoretically, concomitant use of L-arginine and testosterone might have additive effects.
In clinical research, L-arginine increases the level of testosterone in male patients with erectile dysfunction. The clinical significance of this finding is unclear.

Likelihood Possible Evidence D
L-Arginine Hydrochloride full monograph & interactions

Acetyl L-Carnitine HCl4 drug types · 203 drugs

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.

Likelihood Possible Evidence D
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.

Likelihood Possible Evidence D
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.

Likelihood Probable Evidence B
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.

Likelihood Possible Evidence D
Acetyl L-Carnitine HCl full monograph & interactions

New Zealand Deer Antler Velvet2 drug types · 52 drugs

Contraceptive Drugs

Theoretically, deer velvet might interfere with the effectiveness of contraceptive drugs.
Laboratory research shows that deer velvet contains small quantities of estradiol and testosterone. While clinical research shows that taking deer velvet extract does not raise testosterone levels, estradiol levels were not measured.

Likelihood Unlikely Evidence D
Estrogens

Theoretically, deer velvet might increase the effects and side effects of estrogens.
Laboratory evidence shows that deer velvet contains small quantities of estradiol and testosterone. While clinical research shows that taking deer velvet extract does not raise testosterone levels, estradiol levels were not measured.

Likelihood Unlikely Evidence D
New Zealand Deer Antler Velvet full monograph & interactions
The maker

Brand information

Manufacturer and brand details for NewVigor, from the product label.

Vitalast

See all Vitalast products
Name
Vitalast LLC
Street Address
PO Box 385
City
Pound Ridge
State
NY
ZipCode
10576
Web Address
www.newvigor.com
Pharmacist Counseling Corner

NewVigor by Vitalast: Common Questions

Does NewVigor by Vitalast interact with any medications?
Yes. Based on its ingredients, NewVigor has a known interaction with 644 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
NewVigor contains 4 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What is acetyl L-carnitine and what is it used for?
Acetyl L-carnitine is a compound related to an amino acid. In this product, it is used for age-related memory loss, Alzheimer disease, alcohol-related changes in the brain, nerve pain from diabetes, and depression—all conditions where it is rated possibly effective.
Can I take this product while I'm pregnant?
The safety data for these ingredients in pregnancy is not adequate. Acetyl L-carnitine, deer antler velvet, and maca should all be avoided during pregnancy unless your doctor advises otherwise. Talk with your doctor or pharmacist for personalized advice.
What are the most common side effects of acetyl L-carnitine in this product?
The most common side effects are agitation, dry mouth, headache, insomnia, and reduced appetite. Some people also report nausea, vomiting, or diarrhea, though these are not more frequent than with placebo in most studies. One metabolite can cause a fishy odor in urine, breath, and sweat.
Is L-arginine safe for me if I have high blood pressure?
L-arginine can lower blood pressure and carries a Moderate interaction with blood pressure medications. If you take blood pressure drugs, you need to check this product with your pharmacist before starting, as combining it with your medication could cause your blood pressure to drop too much.
Does deer antler velvet in this product raise testosterone?
Deer velvet contains trace amounts of testosterone and estradiol, but clinical research shows that taking deer velvet extract does not raise testosterone levels. However, estradiol levels were not measured in those studies, so the full hormonal effect is not completely clear.
What is maca used for in this product, and is it effective?
Maca is included for uses like sexual desire, athletic performance, bone health, and menstrual irregularity. However, the evidence to support effectiveness for these conditions is insufficient—meaning the research is too limited to say whether it works for these purposes.

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.

NewVigor label
Go deeper

The Full Monographs Behind NewVigor’s Ingredients

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

Herb & supplement monograph

Acetyl-l-carnitine

Interacts with 203 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 memory-related conditions, though the evide...

Read the full Acetyl-l-carnitine monograph → Herb & supplement monograph

L-arginine

Interacts with 403 drugs

L-arginine is an amino acid that the body uses to make nitric oxide, a substance that helps blood vessels relax and widen. It is popularly used for blood pressure, erectile dysfunction, and...

Read the full L-arginine monograph → Herb & supplement monograph

Deer Velvet

Interacts with 52 drugs

Deer velvet is a traditional remedy made from the soft, growing antlers of deer or elk, and it is most often promoted for energy, athletic performance, and joint health. Good-quality human e...

Read the full Deer Velvet monograph → Herb & supplement monograph

Maca

Maca is a nutrient-rich Andean root often used for energy, libido, and menopause symptoms. Early studies suggest it may modestly help sexual desire and some menopause symptoms, but the evide...

Read the full Maca monograph →
Sources

Sources & How We Checked

NewVigor's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 91 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
  1. 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
  2. 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
  3. Spagnoli A, Lucca U, Menasce G, et al. Long-term acetyl-L-carnitine treatment in Alzheimer's Disease. Neurology 1991;41:1726-32. PubMed
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. Martinez E, Domingo P, Roca-Cusachs A. Potentiation of acenocoumarol action by L-carnitine. J Intern Med 1993;233:94.
  10. Hudson S, Tabet N. Acetyl-L-carnitine for dementia. Cochrane Database Syst Rev 2003;2:CD003158.. PubMed
  11. Bachmann HU, Hoffmann A. Interaction of food supplement L-carnitine with oral anticoagulant acenocoumarol. Swiss Med Wkly 2004;134:385. PubMed
  12. 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
  13. 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
  14. 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.
  15. 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.
  16. 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.
  17. 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
  18. 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
  19. 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
  20. 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.
  21. 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
  22. 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

See these in context on the Acetyl-l-carnitine monograph →

L-arginine 66 references
  1. Sapienza MA, Kharitonov SA, Horvath I, et al. Effect of inhaled L-arginine on exhaled nitric oxide in normal and asthmatic subjects. Thorax 1998;53:172-5.
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Deer Velvet 2 references
  1. Sleivert, G., Burke, V., Palmer, C., Walmsley, A., Gerrard, D., Haines, S., and Littlejohn, R. The effects of deer antler velvet extract or powder supplementation on aerobic power, erythropoiesis, and muscular strength and endurance characteristics. Int PubMed
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Maca 1 reference
  1. Valerio, L. G., Jr. and Gonzales, G. F. Toxicological aspects of the South American herbs cat's claw (Uncaria tomentosa) and Maca (Lepidium meyenii) : a critical synopsis. Toxicol.Rev 2005;24(1):11-35. PubMed

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