Major interaction on record — check this product against your medications before combining. Based on 5 of 6 ingredients. Check your meds →
Dietary supplement

Carnitech Liquid Citrus Cocktail Ingredients & Drug Interactions

by Universal

Carnitech Liquid Citrus Cocktail label
See full label image
Liquid Category: Other Combinations
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Carnitech Liquid Citrus Cocktail 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: Major

Carnitech Liquid Citrus Cocktail is a dietary supplement by Universal with 6 active ingredients. Its ingredients are commonly taken for exercise performance and recovery, heart health, weight management.Based on those ingredients, 775 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Caffeine, L-Taurine, Inositol. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Carnitech Liquid Citrus Cocktail by Universal

Ask about any prescription or over-the-counter medication and we check it for interactions with Carnitech Liquid Citrus Cocktail by Universal — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Carnitech Liquid Citrus Cocktail by Universal

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 12, 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 5 of its 5 active ingredients.
  • “Carnitech Performance Blend” is a proprietary blend — the label doesn't break down how much of each component you get.

Carnitech Liquid Citrus Cocktail contains five active ingredients. Caffeine is a central nervous system stimulant.

L-Taurine is an amino acid. Choline Bitartrate is a nutrient involved in brain and liver function.

Carnitine (L-carnitine) is a compound that helps your cells produce energy. Inositol is a carbohydrate that plays a role in cell signaling.

The product also contains several inactive ingredients — purified water, glycerine, citric acid, flavoring agents, sodium benzoate as a preservative, and botanical extracts including guarana (which itself contains caffeine), green tea, ginseng, and white willow bark.

Does it work?

Strong 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
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: exercise performance and energy support.
  • We looked for evidence on: Athletic performance, Exercise-induced muscle damage, Exercise-induced muscle soreness, Fatigue, endurance, workout recovery — and 1 related terms.
  • The strongest evidence on file: Caffeine is rated "Likely Effective" for Athletic performance (Natural Medicines).
  • Also on file: Choline is rated "Possibly Ineffective" for Athletic performance.
  • Also on file: Caffeine is rated "Insufficient Reliable Evidence To Rate" for Exercise-induced muscle soreness.

Caffeine is effective for neonatal apnea and postoperative headache, and likely effective for mental alertness and athletic performance. The evidence is less strong (possibly effective) for bronchopulmonary dysplasia.

L-Taurine is possibly effective for hepatitis and congestive heart failure (CHF), though possibly ineffective for weight loss. Carnitine is effective for L-carnitine deficiency and possibly effective for high cholesterol, CHF, and angina.

Inositol is possibly effective for polycystic ovary syndrome (PCOS), metabolic syndrome, and preterm labor. For Choline Bitartrate and inositol in several other conditions, the evidence is insufficient to rate or shows possible ineffectiveness — the data we hold doesn't establish those uses.

The evidence, ingredient by ingredient L-carnitine Caffeine Taurine Choline Inositol

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 5 of the 5 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 5 of 5.
  • General safety write-ups exist for 5 of 5.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Caffeine in moderate amounts is generally well tolerated by healthy adults, though high doses can cause serious side effects. Common side effects include anxiety, jitteriness, dependence, diarrhea, headache, insomnia, nausea, and tremors.

L-Taurine is well tolerated short-term at typical doses; long-term safety is less certain. Most common side effects are constipation, diarrhea, and indigestion.

Choline is well tolerated when used appropriately, but high doses (over 3.5 grams daily) can cause a fishy body odor, diarrhea, nausea, salivation, and sweating. Carnitine is generally well tolerated at typical doses and commonly causes only mild stomach upset and a fish-like body odor.

Inositol is generally well tolerated with mostly mild digestive side effects like diarrhea, gas, and nausea. For pregnancy: caffeine is rated possibly unsafe (high amounts carry pregnancy risks — ask your doctor about safe limits); L-taurine, choline, and inositol are possibly safe but should be used only as your doctor advises.

Safety data for carnitine in pregnancy isn't on file. For breastfeeding: caffeine and L-taurine pass into breast milk (small amounts are usually considered acceptable, but it can affect your baby); choline is likely safe and occurs naturally in breast milk; inositol and carnitine lack sufficient safety data for breastfeeding — consult your doctor or pharmacist.

Side effects, ingredient by ingredient L-carnitine Caffeine Taurine Choline Inositol

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 5 of the 5 matched ingredients can interact with medications — Inositol, Choline, Caffeine, Taurine, L-carnitine.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications; lithium.
  • For scale: 775 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.

Check these medication types before taking this product, starting with the most serious: ephedrine or other stimulants (Major severity); blood thinners like warfarin, seizure medications, blood pressure drugs, lithium, thyroid hormone, antipsychotics, stomach acid reducers, quinolone antibiotics, sleep medications, and diabetes drugs (all Moderate); and atropine (Minor).

Check your own medication Run your meds through the checker above

The bottom line

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

This product is a multingredient energy and performance formula that may appeal to people looking to boost mental alertness and physical performance. Because of caffeine and the other ingredients' interactions with blood pressure medications, seizure drugs, blood thinners, thyroid medication, lithium, and diabetes medications, you should check your exact prescriptions with the tool on this page before you start.

If you take any medication regularly, talk to your pharmacist.

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 Oct 27, 2014.

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 Carnitech Liquid Citrus Cocktail, straight from the product label.

Brand Universal
Barcode (UPC) 039442051943
Net contents 16 fl. Oz.; 473 mL
Market status On market
Date entered into DSLD Oct 27, 2014
DSLD ID 38078
Product type Other Combinations
Supplement form Liquid
Dietary claims / uses 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 Carnitech Liquid Citrus Cocktail by Universal, 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 Tablespoon(s)
Maximum serving Sizes:
4 Tablespoon(s)
Servings per container
16
UPC/BARCODE
039442051943
IngredientAmount% DV
Calories24 {Calories}--
Carbohydrates6 Gram(s)2%
Caffeine25 mg--
L-Taurine50 mg--
Choline Bitartrate50 mg--
Carnitine1.3 Gram(s)--
Inositol50 mg--
Carnitech Performance Blend0 NP--

Other ingredients: purified Water, Glycerine, Citric Acid, Passion Fruit flavor, Sodium Benzoate, Citrus flavor, Natural flavor, Guarana Extract, Green Tea extract, Ginseng extract, White Willow bark extract, Natural color

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.
Storage

Refrigerate after opening. Keep bottle tightly closed in a cool, dry place away from excessive heat.

FDA Disclaimer Statement

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.

General Statements

WHO WE ARE Universal Nutrition has been providing cutting edge and staple nutritional supplements to bodybuilders and hard training athletes the world over since 1977. As time passes, certain ideals never go out of style. Honesty. Integrity. Respect. These are the values we uphold and are the bedrock upon which we built our business. WHAT IT IS As an athlete, you know performance centers on your body’s ability to produce energy. And since fat provides the main energy fuel for muscles, tapping into your body’s fat stores is critical. That’s where carnitine comes in. Carnitine “transports” long-chain fatty acids (the highest energy food fuels) across the mitochondrial membrane (the power plant of the cell) for enhanced energy production. Without it, fats cannot be burned for energy. At Universal, we’ve harnessed the power of carnitine by combining pure U.S.P. Grade carnitine with four carnitine enhancers.

HOW WE BACK IT UP What is on the label is in the bottle and what is in the bottle will help you reach your goals. We believe it and proudly stand behind every product we manufacture. Our word is our bond.

MADE IN THE USA

732-545-3130

Plant #3001104580

Brand IP Statement(s)

We’re proud to present Carni-Tech(TM) in liquid form for fast-acting, maximum absorption.

(C)2014UniversalNutrition

Precautions

Made in a GMP facility on equipment that processes milk, soy, egg, peanuts, tree nuts, fish, shellfish, and wheat.

Suggested/Recommended/Usage/Directions

Recommended Use: Take 2-4 tablespoons per day, 30-60 minutes prior to your workout.

General

D2014-G-32384

FDA Statement of Identity

Energy Supplement

Formula

Super Fast-Acting Liquid Carnitine Complex 1300mg Carnitine per Serving

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

See for yourself

Carnitech Liquid Citrus Cocktail by Universal label

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

Carnitech Liquid Citrus Cocktail 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 Carnitech Liquid Citrus Cocktail by Universal

These are the 6 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Tablespoon(s) Dosage formLiquid Servings per container16 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.

Carbohydrates

6 Gram(s) per serving

Carnitine

Interacts with
19 drugs
1.3 Gram(s) per serving Form: L-Carnitine

L-carnitine is a compound your body makes naturally and also gets from foods like meat. It helps cells turn fat into energy, and supplements are most...

Carnitine monograph & interactions

Carnitech Performance Blend

0 NP per serving

Other (inactive) ingredients: Purified Water, Glycerine, Citric Acid, Passion Fruit flavor, Sodium Benzoate, Citrus flavor, Natural flavor, Guarana Extract, Green Tea extract, Ginseng extract, White Willow bark extract, Natural color. These complete the product’s ingredient list but are not active constituents.

Interaction report

Carnitech Liquid Citrus Cocktail by Universal Drug Interactions

Want to check YOUR meds against Carnitech Liquid Citrus Cocktail?

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 checker
775Drugs
8 Major 678 Moderate 89 Minor

Ingredients driving the most interactions

Caffeine 655
L-Taurine 173
Inositol 86
Carnitine 19
Choline Bitartrate 16

Individual Drug Interactions

The ingredients in Carnitech Liquid Citrus Cocktail interact with 775 drugs. Click any drug to see the details.

5 of the 6 ingredients in Carnitech Liquid Citrus Cocktail interact with drugs. Each result below shows which ingredient is responsible. Caffeine L-Taurine Inositol Carnitine Choline Bitartrate

Each ingredient & the kinds of drugs it affects

For each ingredient in Carnitech Liquid Citrus Cocktail 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.

Caffeine41 drug types · 655 drugs

Ephedrine

Theoretically, concomitant use might increase the risk for stimulant adverse effects.
Use of ephedrine with caffeine can increase the risk of stimulatory adverse effects. There is evidence that using ephedrine with caffeine might increase the risk of serious life-threatening or debilitating adverse effects such as hypertension, myocardial infarction, stroke, seizures, and death.

Likelihood Probable Evidence D
Adenosine (Adenocard)

Theoretically, caffeine might decrease the vasodilatory effects of adenosine and interfere with its use prior to stress testing.
Some evidence shows that caffeine is a competitive inhibitor of adenosine and can reduce the vasodilatory effects of adenosine in humans. However, other research shows that caffeine does not seem to affect supplemental adenosine because high interstitial levels of adenosine overcome the antagonistic effects of caffeine. It is recommended that methylxanthines and methylxanthine-containing products be stopped 24 hours prior to pharmacological stress tests. However, methylxanthines appear more likely to interfere with dipyridamole (Persantine) than adenosine-induced stress testing.

Likelihood Possible Evidence B
Anticoagulant/Antiplatelet Drugs

Theoretically, caffeine may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Caffeine is reported to have antiplatelet activity. Theoretically, it might increase the risk of bleeding when used concomitantly with these agents; however, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Beta-Adrenergic Agonists

Theoretically, large amounts of caffeine might increase the cardiac inotropic effects of beta-agonists.

Likelihood Probable Evidence D
Carbamazepine (Tegretol)

Theoretically, caffeine might reduce the effects of carbamazepine and increase the risk for convulsions.
Animal research suggests that taking caffeine can lower the anticonvulsant effects of carbamazepine and can induce seizures when taken in doses above 400 mg/kg. Human research has shown that taking caffeine 300 mg in three divided doses along with carbamazepine 200 mg reduces the bioavailability of carbamazepine by 32% and prolongs the plasma half-life of carbamazepine 2-fold in healthy individuals.

Likelihood Possible Evidence D
Cimetidine (Tagamet)

Theoretically, cimetidine might increase the levels and adverse effects of caffeine.
Cimetidine decreases the rate of caffeine clearance by 31% to 42%.

Likelihood Likely Evidence B
Clozapine (Clozaril)

Caffeine might increase the levels and adverse effects of clozapine and acutely exacerbate psychotic symptoms.
Caffeine might increase the effects and toxicity of clozapine. Caffeine doses of 400-1000 mg per day inhibit clozapine metabolism. Clozapine is metabolized by cytochrome P450 1A2 (CYP1A2). Although researchers speculate that caffeine might inhibit CYP1A2, there is no reliable evidence that caffeine affects CYP1A2. There is also speculation that genetic factors might make some patients more sensitive to an interaction between clozapine and caffeine. In one case report, severe, life-threatening clozapine toxicity and multiorgan system failure occurred in a patient with schizophrenia stabilized on clozapine who consumed caffeine 600 mg daily.

Likelihood Possible Evidence B
Dipyridamole (Persantine)

Theoretically, caffeine might decrease the vasodilatory effects of dipyridamole and interfere with its use prior to stress testing.
Caffeine inhibits dipyridamole-induced vasodilation. It is recommended that methylxanthines and methylxanthine-containing products be stopped 24 hours prior to pharmacological stress tests. Methylxanthines appear more likely to interfere with dipyridamole (Persantine) than adenosine-induced stress testing.

Likelihood Probable Evidence B
Disulfiram (Antabuse)

Theoretically, disulfiram use might increase the levels and adverse effects of caffeine.
Disulfiram decreases the rate of caffeine clearance.

Likelihood Probable Evidence B
Diuretic Drugs

Theoretically, using caffeine with diuretic drugs might increase the risk of hypokalemia.
Caffeine, especially in excessive amounts, can reduce potassium levels due to stimulation of the sodium-potassium pump. Diuretics can also cause lower potassium levels.

Likelihood Possible Evidence D
Estrogens

Theoretically, estrogens might increase the levels and adverse effects of caffeine.
Estrogen inhibits caffeine metabolism.

Likelihood Probable Evidence B
Ethosuximide (Zarontin)

Theoretically, caffeine might reduce the effects of ethosuximide and increase the risk for convulsions.
Animal research suggests that caffeine 92.4 mg/kg can decrease the anticonvulsant activity of ethosuximide. However, this effect has not been reported in humans.

Likelihood Possible Evidence D
Felbamate (Felbatol)

Theoretically, caffeine might reduce the effects of felbamate and increase the risk for convulsions.
Animal research suggests that a high dose of caffeine 161.7 mg/kg can decreases the anticonvulsant activity of felbamate. However, this effect has not been reported in humans.

Likelihood Possible Evidence D
Flutamide (Eulexin)

Theoretically, caffeine might increase the levels and adverse effects of flutamide.
In vitro evidence suggests that caffeine can inhibit the metabolism of flutamide. However, this effect has not been reported in humans.

Likelihood Probable Evidence D
Fluvoxamine (Luvox)

Theoretically, fluvoxamine might increase the levels and adverse effects of caffeine.
Fluvoxamine reduces caffeine metabolism.

Likelihood Probable Evidence D
Lithium

Abrupt caffeine withdrawal might increase the levels and adverse effects of lithium.
Caffeine has diuretic activity. When abruptly discontinued, caffeine may alter the clearance of lithium. There are two case reports of lithium tremor that worsened upon abrupt coffee withdrawal and 6 case reports of elevated serum lithium levels after reducing or eliminating caffeine intake. In one case, a male with schizoaffective disorder stabilized on lithium had an elevated lithium level after reducing his caffeine intake by 87%. At a later date, he increased his caffeine intake by 6-fold, resulting in a subtherapeutic lithium level and a recurrence of psychiatric symptoms.

Likelihood Probable Evidence D
Monoamine Oxidase Inhibitors (Maois)

Theoretically, concomitant use might increase the risk of a hypertensive crisis.
Caffeine has been shown to inhibit monoamine oxidase (MAO) A and B in laboratory studies. Concomitant intake of large amounts of caffeine with MAOIs might precipitate a hypertensive crisis. In a case report, a patient that consumed 10-12 cups of caffeinated coffee and took the MAOI tranylcypromine presented with severe hypertension. Hypertension was resolved after the patient switched to drinking decaffeinated coffee.

Likelihood Possible Evidence D
Nicotine

Theoretically, concomitant use might increase the risk of hypertension.
Concomitant use of caffeine and nicotine has been shown to have additive cardiovascular effects, including increased heart rate and blood pressure. Blood pressure was increased by 10.8/12.4 mmHg when the agents were used concomitantly.

Likelihood Probable Evidence B
Pentobarbital (Nembutal)

Theoretically, caffeine might decrease the effects of pentobarbital.
Caffeine might negate the hypnotic effects of pentobarbital.

Likelihood Possible Evidence B
Phenobarbital (Luminal)

Theoretically, caffeine might reduce the effects of phenobarbital and increase the risk for convulsions.
Animal research suggests that caffeine can decrease the anticonvulsant activity of phenobarbital. However, the exact mechanism of this interaction is unclear.

Likelihood Possible Evidence D
Phenylpropanolamine

Theoretically, phenylpropanolamine might increase the risk of hypertension, as well as the levels and adverse effects of caffeine.
Concomitant use of phenylpropanolamine and caffeine might cause an additive increase in blood pressure. Phenylpropanolamine also seems to increase caffeine serum levels.

Likelihood Probable Evidence B
Phenytoin (Dilantin)

Theoretically, caffeine might reduce the effects of phenytoin and increase the risk for convulsions.
Animal research suggests that caffeine can decrease the anticonvulsant activity of phenytoin. The effect does not seem to be related to the seizure threshold-lowering effects of caffeine. However, the exact mechanism of this interaction is unclear.

Likelihood Possible Evidence D
Pioglitazone (Actos)

Theoretically, caffeine might increase the levels and clinical effects of pioglitazone.
Animal research suggests that caffeine can modestly increase the maximum concentration, area under the curve, and half-life of pioglitazone, and also reduce its clearance. This increased the antidiabetic effects of pioglitazone. However, the exact mechanism of this interaction is unclear.

Likelihood Possible Evidence D
Quinolone Antibiotics

Theoretically, quinolone antibiotics might increase the levels and adverse effects of caffeine.
Quinolones (also called fluoroquinolones) can decrease caffeine clearance by inhibiting cytochrome P450 1A2 (CYP1A2) enzyme.

Likelihood Probable Evidence B
Riluzole (Rilutek)

Theoretically, concomitant use might increase the levels and adverse effects of both caffeine and riluzole.
Caffeine and riluzole are both metabolized by cytochrome P450 1A2 (CYP1A2), and concomitant use might reduce the metabolism of one or both agents.

Likelihood Possible Evidence D
Caffeine full monograph & all 41 interactions

L-Taurine2 drug types · 173 drugs

Antihypertensive Drugs

Theoretically, taurine might increase the risk of hypotension when taken with antihypertensive drugs.
Some clinical evidence suggests that taurine can reduce both systolic and diastolic blood pressure.

Likelihood Probable Evidence D
Lithium

Theoretically, taurine might reduce excretion and increase plasma levels of lithium.
Taurine is thought to have diuretic properties, which might reduce the excretion of lithium.

Likelihood Probable Evidence D
L-Taurine full monograph & interactions

Inositol1 drug type · 86 drugs

Antidiabetes Drugs

Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical research shows that inositol lowers blood glucose levels and glycated hemoglobin (HbA1c) levels in patients with diabetes.

Likelihood Possible Evidence A
Inositol full monograph & interactions

Carnitine3 drug types · 19 drugs

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.

Likelihood Possible Evidence D
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.

Likelihood Probable Evidence B
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.

Likelihood Possible Evidence D
Carnitine full monograph & interactions

Choline Bitartrate1 drug type · 16 drugs

Atropine

Theoretically, choline might decrease the effects of atropine in the brain.
Animal research shows that administering choline one hour before administering atropine can attenuate atropine-induced decreases in brain levels of acetylcholine. Theoretically, concomitant use of choline and atropine may decrease the effects of atropine.

Likelihood Possible Evidence D
Choline Bitartrate full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Carnitech Liquid Citrus Cocktail, from the product label.

Universal

See all Universal products
Name
Universal Nutrition
City
New Brunswick
State
New Jersey
ZipCode
08901
Phone Number
800-872-0101
Web Address
www.universalUSA.com
Pharmacist Counseling Corner

Carnitech Liquid Citrus Cocktail by Universal: Common Questions

Does Carnitech Liquid Citrus Cocktail by Universal interact with any medications?
Yes. Based on its ingredients, Carnitech Liquid Citrus Cocktail has a known interaction with 775 medications, including 8 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Carnitech Liquid Citrus Cocktail contains 6 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.
Does this product have caffeine?
Yes — caffeine is one of the five active ingredients. The product also contains guarana extract, which naturally contains more caffeine, so your total caffeine intake will be higher than from the listed caffeine alone.
What is L-carnitine for?
Carnitine (L-carnitine) helps your cells produce energy. It's effective for treating L-carnitine deficiency and possibly effective for high cholesterol, congestive heart failure, and angina.
What are the most common side effects?
The most common side effects come from caffeine and include anxiety, jitteriness, insomnia, nausea, and headache. Carnitine, taurine, and inositol may cause mild stomach upset — diarrhea, nausea, or cramps. High doses of choline can cause a fishy body odor.
Is this safe to take while pregnant?
The safety data is mixed. Caffeine at high amounts carries pregnancy risks — your doctor should advise you on safe limits. L-Taurine, choline, and inositol are possibly safe but should be used only as directed by your doctor. For carnitine, we don't have pregnancy safety data on file — ask your pharmacist or doctor.
What does inositol do?
Inositol is a carbohydrate involved in cell signaling. It's possibly effective for polycystic ovary syndrome (PCOS), metabolic syndrome, and preterm labor, though the evidence for other uses we hold is insufficient.
Can I take this if I'm on blood thinners?
No — carnitine in this product can increase the effects of blood thinners like warfarin, raising your bleeding risk. Talk to your pharmacist or doctor before starting; you may need your blood work monitored or your dose adjusted.

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.

Carnitech Liquid Citrus Cocktail label
Go deeper

The Full Monographs Behind Carnitech Liquid Citrus Cocktail’s Ingredients

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

Herb & supplement monograph

L-carnitine

Interacts with 19 drugs

L-carnitine is a compound your body makes naturally and also gets from foods like meat. It helps cells turn fat into energy, and supplements are most clearly useful for people with a true ca...

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

Caffeine

Interacts with 655 drugs

Caffeine is a natural stimulant found in coffee, tea, and many other plants and products. In moderate amounts it can boost alertness and reduce tiredness for most healthy adults, but too muc...

Read the full Caffeine monograph → Herb & supplement monograph

Taurine

Interacts with 173 drugs

Taurine is an amino acid your body makes naturally and that you also get from animal foods. It is widely used in energy drinks and sports supplements, and short-term use appears generally sa...

Read the full Taurine monograph → Herb & supplement monograph

Choline

Interacts with 16 drugs

Choline is an essential nutrient your body needs for liver function, brain health, and nerve signaling, and many people get enough from foods like eggs, meat, and fish. Supplements may help...

Read the full Choline monograph → Herb & supplement monograph

Inositol

Interacts with 86 drugs

Inositol is a sugar alcohol made naturally in the body and found in many foods, and it is sold as a supplement (often myo-inositol) mainly for PCOS, mood, and metabolic concerns. The stronge...

Read the full Inositol monograph →
Sources

Sources & How We Checked

Carnitech Liquid Citrus Cocktail'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 326 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.

Caffeine 236 references
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L-carnitine 41 references
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Inositol 14 references
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