Liquid Ribose Cellular Energy Ingredients & Drug Interactions
by NOW Sports
What is this page for?
First and foremost: checking Liquid Ribose Cellular Energy 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
Liquid Ribose Cellular Energy is a dietary supplement by NOW Sports with 3 active ingredients. Its ingredients are commonly taken for exercise performance and recovery, heart health, weight management.Based on those ingredients, 105 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Bioenergy Ribose, L-Carnitine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Liquid Ribose Cellular Energy by NOW Sports
Ask about any prescription or over-the-counter medication and we check it for interactions with Liquid Ribose Cellular Energy by NOW Sports — 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 Liquid Ribose Cellular Energy by NOW Sports
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product contains 2 active ingredients: L-carnitine and Bioenergy Ribose. L-carnitine is an amino acid your cells use to produce energy, especially in muscle tissue.
Bioenergy Ribose is a simple sugar that supports cellular energy production. The rest is made up of inactive ingredients—water, vegetable glycerin, vanilla and orange flavors, citric acid, and potassium sorbate as a preservative.
Does it work?
Moderate evidence
For L-carnitine, the evidence is strongest in L-carnitine deficiency, where it's rated Effective. For heart-related conditions like congestive heart failure and angina, as well as high cholesterol (hyperlipidemia), it's rated Possibly Effective—meaning there's some promise but the evidence isn't conclusive.
For Bioenergy Ribose, the picture is less clear. It's rated Possibly Ineffective for athletic performance and McArdle disease, and there isn't enough reliable evidence to know whether it helps with restless legs syndrome, congestive heart failure, muscle soreness, or recovery from bypass surgery.
If you're considering this product for a specific reason, talk with us about whether the evidence supports its use for your goal.
How safe is it?
Well-documented data
L-carnitine is generally well tolerated at typical doses, though high doses can cause stomach upset, nausea, diarrhea, heartburn, abdominal cramps, and a fishy body odor. Seizures are a rare but serious side effect reported with L-carnitine use.
There isn't enough reliable safety data for L-carnitine, so it should only be used under medical supervision. Bioenergy Ribose is generally well tolerated for short-term use (up to 1 month), but it lowers blood sugar and long-term safety hasn't been well studied.
Common side effects include diarrhea, nausea, gastrointestinal discomfort, headache, and low blood sugar (hypoglycemia). Because of insufficient safety information, ribose should be avoided during pregnancy and while breastfeeding.
Safety data on L-carnitine during pregnancy and breastfeeding is not on file.
Meds to double-check
Moderate interaction found
Check with us before starting if you take warfarin or acenocoumarol (blood thinners); these interactions are Moderate severity. Also double-check if you're on thyroid hormone replacement or any antidiabetes medication or insulin.
These are the medication types where this product poses documented interaction risks.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This product may help if you have a documented L-carnitine deficiency or are exploring options for heart health or cholesterol—though the evidence is stronger for deficiency than for other uses. Be cautious if you take blood thinners, thyroid medication, or any drug that lowers blood sugar; check with us first.
Pregnant or nursing? Skip this product until you've talked with your doctor.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Aug 26, 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
General information
Key facts about Liquid Ribose Cellular Energy, straight from the product label.
| Brand | NOW Sports |
|---|---|
| Barcode (UPC) | 733739021366 |
| Net contents | 16 fl. Oz.; 473 mL |
| Market status | On market |
| Date entered into DSLD | Aug 26, 2014 |
| DSLD ID | 36002 |
| Product type | Other Combinations |
| Supplement form | Liquid |
| Dietary claims / uses | Nutrient, All Other, Approved Health, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy 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 Liquid Ribose Cellular Energy by NOW Sports, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calories | 30 {Calories} | -- |
| Total Carbohydrates | 7 Gram(s) | 2% |
| Sugar | 3 Gram(s) | -- |
| L-Carnitine | 300 mg | -- |
| Bioenergy Ribose | 3 Gram(s) | -- |
Other ingredients: de-ionized Water, Vegetable Glycerin, natural Vanilla flavor, Citric Acid, natural Orange flavor, 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.
General
CODE 2136 V2
Suggested/Recommended/Usage/Directions
SUGGESTED USAGE: Shake well before using. As a dietary supplement, take 1-5 tablespoons daily in divided doses. For best results, take prior to exercise.
General Statements
D-Ribose is a simple sugar used by all living cells and is essential for cellular metabolism as a major component of the genetic material, RNA and DNA. Ribose is also is a structural component of ATP, the primary energy source for exercising muscle. However, during intense muscular activity, the total amount of available ATP becomes depleted. Ribose supplementation has been shown to support ATP regeneration following intense exercise; it may also help to support normal exercise tolerance. L-Carnitine is included because it facilitates the transfer of fatty acids into the mitochondria for cellular energy production.
~ Fuels ATP Energy Production ~ Facilitates Fatty Acid Transport
Made in the USA
For more product information visit www.nowfoods.com/2136
Please Recycle.
Brand IP Statement(s)
NOW(R) Liquid Ribose Cellular Energy therefore contains two compounds that help to provide the fuel that working muscle needs for optimal performance.*
Carnipure(TM)
Bioenergy RIBOS(R) is a registered trademark of Bioenergy Life Science, Inc. Use of ribose is licensed by Bioenergy Life Science, Inc. under U.S. Patents 6,159,942; 6,534,480; 6,218,366; 6,339,716, and other U.S. and foreign patents issued and pending.
Carnipure(TM) offers purest L-Carnitine and is a trademark of Lonza Ltd, Switzerland.
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.
Seals/Symbols
BIOENERGY RIBOSE(R) (U)
GMP QUALITY ASSURED
Formula
~ D-Ribose plus L-Carnitine
FDA Statement of Identity
A Dietary Supplement
Formulation
Vegetarian/Vegan
Not manufactured with yeast, wheat, gluten, soy protein, milk, egg, fish, shellfish or tree nut ingredients.
Storage
Store in a cool, dry place after opening.
Precautions
Not manufactured with yeast, wheat, gluten, soy protein, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Liquid Ribose Cellular Energy by NOW Sports 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 Liquid Ribose Cellular Energy by NOW Sports
These are the 3 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Tbsp Dosage formLiquid Servings per container32 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
L-Carnitine
Interacts with19 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...
L-Carnitine monograph & interactionsBioenergy Ribose
Interacts with86 drugs
Ribose (D-ribose) is a simple sugar your body makes naturally and uses to build energy molecules like ATP. Some people take it for fatigue, fibromyalg...
Bioenergy Ribose monograph & interactionsOther (inactive) ingredients: De-ionized Water, Vegetable Glycerin, Natural Vanilla flavor, Citric Acid, Natural Orange flavor, Potassium Sorbate. These complete the product’s ingredient list but are not active constituents.
Liquid Ribose Cellular Energy by NOW Sports Drug Interactions
HelloPharmacist Interaction Report
Liquid Ribose Cellular Energy by NOW Sports contains two active ingredients that each interact with medications.
L-carnitine is the source of the most serious documented interactions: it may increase the blood-thinning effects of warfarin (Coumadin) and acenocoumarol (Sintrom), both anticoagulants, at Moderate severity. There are case reports of INR elevation—a measure of how thin your blood is—when L-carnitine was used with acenocoumarol.
Read the full breakdown — every affected drug type, severity by severity
L-carnitine also interacts with thyroid hormone replacement at Moderate severity, potentially decreasing how well your thyroid medication works. The mechanism appears to be that L-carnitine blocks thyroid hormone from entering cells where it's needed.
Bioenergy Ribose carries Moderate-severity interactions with antidiabetes drugs and insulin. Ribose can lower blood sugar levels, so combining it with medications that already lower blood sugar raises your risk of dangerously low blood sugar (hypoglycemia).
Although we hold interaction data for both active ingredients, Altogether, these interactions span 104 individual medications. Use the medication checker below to see if any of your prescriptions are affected before you start this product.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Liquid Ribose Cellular Energy?
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 Liquid Ribose Cellular Energy interact with 105 drugs. Click any drug to see the details.
2 of the 3 ingredients in Liquid Ribose Cellular Energy interact with drugs. Each result below shows which ingredient is responsible. Bioenergy Ribose L-Carnitine
AcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Acarbose interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
L-carnitineAcenocoumarol (sintrom) Moderate
Interaction Summary
Theoretically, L-carnitine might increase the anticoagulant effects of acenocoumarol.
Read the full L-carnitine + Acenocoumarol interactionAcetohexamideDymelor
How Acetohexamide interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Acetohexamide interactionAlbiglutideTanzeum
How Albiglutide interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Albiglutide interactionAlogliptinNesina
How Alogliptin interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Alogliptin, Pioglitazone interactionAntidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) InhibitorGlyxambi
How Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interactionCanagliflozinInvokana
How Canagliflozin interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Canagliflozin interactionCanagliflozin, MetforminInvokamet
How Canagliflozin, Metformin interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Canagliflozin, Metformin interactionCanagliflozin, Metformin HydrochlorideInvokamet XR
How Canagliflozin, Metformin Hydrochloride interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Canagliflozin, Metformin Hydrochloride interactionChlorpropamideChlorpropam, Diabinese
How Chlorpropamide interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Chlorpropamide interactionConjugated EstrogensCenestin, Enjuvia, Premarin, Premarin Vaginal Cream
How Conjugated Estrogens interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
L-carnitineThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine + Conjugated Estrogens interactionDapagliflozinFarxiga
How Dapagliflozin interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Dapagliflozin interactionDapagliflozin Propanediol, MetforminXigduo XR
How Dapagliflozin Propanediol, Metformin interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Dapagliflozin Propanediol, Metformin interactionDapagliflozin Propanediol, Saxagliptin HydrochlorideQtern
How Dapagliflozin Propanediol, Saxagliptin Hydrochloride interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Dapagliflozin Propanediol, Saxagliptin Hydrochloride interactionDapagliflozin, Metformin Hydrochloride, Saxagliptin HydrochlorideQternmet XR
How Dapagliflozin, Metformin Hydrochloride, Saxagliptin Hydrochloride interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Dapagliflozin, Metformin Hydrochloride, Saxagliptin Hydrochloride interactionDasiglucagon HydrochlorideZegalogue
How Dasiglucagon Hydrochloride interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Dasiglucagon Hydrochloride interactionDesiccated Thyroid ExtractWesthroid, WP Thyroid
How Desiccated Thyroid Extract interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
L-carnitineThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine + Desiccated Thyroid Extract interactionDesiccated Thyroid Extract (prescription Drug)Nature-Throid, Thyrar
How Desiccated Thyroid Extract (prescription Drug) interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
L-carnitineThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine + Desiccated Thyroid Extract (prescription Drug) interactionDextrothyroxineCholoxin
How Dextrothyroxine interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
L-carnitineThyroid Hormone Moderate
Interaction Summary
Theoretically, L-carnitine might decrease the effectiveness of thyroid hormone replacement.
Read the full L-carnitine + Dextrothyroxine interactionDulaglutideTrulicity
How Dulaglutide interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Dulaglutide interactionEmpagliflozinJardiance
How Empagliflozin interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Empagliflozin interactionEmpagliflozin, Linagliptin, Metformin HydrochlorideTrijardy XR
How Empagliflozin, Linagliptin, Metformin Hydrochloride interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Empagliflozin, Linagliptin, Metformin Hydrochloride interactionEmpagliflozin, MetforminSynjardy
How Empagliflozin, Metformin interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Empagliflozin, Metformin interactionEmpagliflozin, Metformin HydrochlorideSynjardy XR
How Empagliflozin, Metformin Hydrochloride interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Empagliflozin, Metformin Hydrochloride interactionErtugliflozinSteglatro
How Ertugliflozin interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Ertugliflozin interactionErtugliflozin, Metformin HydrochlorideSegluromet
How Ertugliflozin, Metformin Hydrochloride interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Ertugliflozin, Metformin Hydrochloride interactionExenatideBydureon, Byetta
How Exenatide interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Exenatide interactionExenatide SyntheticBydureon BCISE
How Exenatide Synthetic interacts with Liquid Ribose Cellular Energy — through 1 ingredient. Tap an ingredient for the detail:
Bioenergy RiboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Bioenergy Ribose + Exenatide Synthetic interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Liquid Ribose Cellular Energy 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.
Bioenergy Ribose
Antidiabetes Drugs
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
In clinical research, ribose decreases serum glucose levels in a dose-dependent manner.
Insulin
Theoretically, taking ribose with insulin could increase the hypoglycemic effect of insulin.
In clinical pharmacokinetic studies, oral administration of ribose modestly increased serum insulin levels.
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 Liquid Ribose Cellular Energy, from the product label.
Liquid Ribose Cellular Energy by NOW Sports: Common Questions
Does Liquid Ribose Cellular Energy by NOW Sports interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Will this product lower my blood sugar?
Can I take this if I'm on warfarin?
What are the common side effects?
Is this safe during pregnancy or breastfeeding?
Will this help my athletic performance?
What's the difference between these two ingredients?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Liquid Ribose Cellular Energy is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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 Liquid Ribose Cellular Energy’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
L-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 monographRibose
Interacts with 86 drugsRibose (D-ribose) is a simple sugar your body makes naturally and uses to build energy molecules like ATP. Some people take it for fatigue, fibromyalgia, exercise recovery, or heart conditio...
Read the full Ribose monograph →Sources & How We Checked
Liquid Ribose Cellular Energy'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 49 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.
L-carnitine 41 references
- Ellaway CM, Williams K, Leonard H, et al. Rett syndrome: randomized controlled trial of L-carnitine. J Child Neurol 1999;14:162-7. PubMed
- 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
- 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
- Ciacci C, Peluso G, Iannoni E, et al. L-Carnitine in the treatment of fatigue in adult celiac disease patients: a pilot study. Dig Liver Dis 2007;39:922-8. PubMed
- 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
- Lebrun C, Alchaar H, Candito M, et al. Levocarnitine administration in multiple sclerosis patients with immunosuppressive therapy-induced fatigue. Mult Scler 2006;12:321-4. PubMed
- Malaguarnera M, Cammalleri L, Gargante MP, et al. L-Carnitine treatment reduces severity of physical and mental fatigue and increases cognitive functions in centenarians: a randomized and controlled clinical trial. Am J Clin Nutr 2007;86:1738-44. PubMed
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