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Dietary supplement

D-Ribose 2 Grams Ingredients & Drug Interactions

by Jarrow Formulas

D-Ribose 2 Grams label
See full label image
Powder Category: Fiber And Other Nutrients
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 D-Ribose 2 Grams 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

D-Ribose 2 Grams is a dietary supplement by Jarrow Formulas with 1 active ingredient. Its ingredients are commonly taken for energy and fatigue, athletic performance and recovery, fibromyalgia symptoms.Based on those ingredients, 86 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are D-Ribose. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against D-Ribose 2 Grams by Jarrow Formulas

Ask about any prescription or over-the-counter medication and we check it for interactions with D-Ribose 2 Grams by Jarrow Formulas — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of D-Ribose 2 Grams by Jarrow Formulas

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 23, 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 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: D-Ribose, a five-carbon sugar your cells use to make energy. Each serving provides 2 grams.

There are no other active or inactive ingredients listed.

Does it work?

Not established
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
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Ribose's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: energy and ATP production support.
  • We looked for evidence on: Athletic performance, Chronic fatigue syndrome (CFS), Fibromyalgia, Congestive heart failure (CHF), Coronary heart disease (CHD), Coronary artery bypass graft (CABG) surgery — and 4 related terms.
  • The closest evidence on file: Ribose is rated "Possibly Ineffective" for Athletic performance (Natural Medicines).
  • Also on file: Ribose is rated "Possibly Ineffective" for McArdle disease.
  • Also on file: Ribose is rated "Insufficient Reliable Evidence To Rate" for Coronary heart disease (CHD), Chronic fatigue syndrome (CFS), Heart failure, Fibromyalgia, and more.

The evidence for D-Ribose is limited. It's rated possibly ineffective for athletic performance.

For restless legs syndrome, congestive heart failure, muscle soreness, and recovery after heart bypass surgery, there isn't enough reliable evidence in our data to say whether it works or not.

The evidence, ingredient by ingredient Ribose

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 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

D-Ribose is generally well tolerated when taken by mouth for up to one month. The most common side effects are diarrhea, gastrointestinal discomfort, headache, nausea, and—because it lowers blood sugar—low blood sugar itself.

Some people have reported anxiety, lightheadedness, and increased appetite; lowering the dose resolved these in some cases. Long-term safety hasn't been well studied.

There isn't enough safety data to recommend it during pregnancy or while breastfeeding—talk with your doctor or pharmacist for personalized guidance.

Side effects, ingredient by ingredient Ribose

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?
  • 1 of the 1 matched ingredient can interact with medications — Ribose.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 86 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 your insulin and any antidiabetes medications (like metformin, sulfonylureas, or GLP-1 agonists) with your doctor or pharmacist before taking D-Ribose. Both Moderate-severity interactions raise the risk of low blood sugar.

Altogether, these interactions span 86 individual medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

D-Ribose is a simple sugar your body uses for energy, but evidence for most claimed benefits is weak or absent. If you take insulin or antidiabetes medication, check with your doctor or pharmacist before adding this—it may lower your blood sugar further.

For other questions about whether it's right for you, talk it over with your own healthcare provider.

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

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jan 24, 2024.

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 D-Ribose 2 Grams, straight from the product label.

Brand Jarrow Formulas
Barcode (UPC) 790011010302
Net contents 7.05 Ounce(s); 200 Gram(s)
Market status On market
Date entered into DSLD Jan 24, 2024
DSLD ID 307581
Product type Fiber And Other Nutrients
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), No Allergies, Gluten Free, Dairy Free
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 D-Ribose 2 Grams by Jarrow Formulas, 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:
2.2 Gram(s)
Maximum serving Sizes:
2.2 Gram(s)
Servings per container
90
UPC/BARCODE
790011010302
IngredientAmount% DV
Calories10 Calorie(s)--
Total Carbohydrates2 Gram(s)1%
D-Ribose2 Gram(s)--
Added Sugars2 Gram(s)4%
Total Sugars2 Gram(s)--

Other ingredients: None

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

Suggested Use: Adults take 1 scoop, 1-3 times a day with water or other fluid, before or after exercise or as directed by your qualified healthcare professional.

Brand IP Statement(s)

Jarrow Formulas D-Ribose, featuring Bioenergy Ribose, is made by microbial fermentation and is protected by U.S. patents 6,159,942, 6,534,480, 6,218,366 and 6,339,716.

Copyright 2022 Jarrow Formulas

Formula

Ribose is one of the necessary building blocks for the formation of ATP, the universal energy molecule in the body. Physical stress can deplete ATP stores in cardiac and skeletal muscles. As the rate-limiting substrate in the synthesis of nucleotides, ribose plays a vital role in replenishing ATP, which helps to promote cellular energy, muscle recovery, and endurance.

Bioenergy Ribose

Precautions

Warning: Consult a healthcare professional before using this product if you are pregnant, nursing, under the age of 18, are taking medication or have a medical condition; if adverse reactions occur, discontinue use.

Warning: Consult a healthcare professional before using this product if you are pregnant, nursing, under the age of 18, are taking medication or have a medical condition; if adverse reactions occur, discontinue use. Keep out of the reach of children.

Do not use if safety seal is damaged 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.

Seals/Symbols

Non GMO Project Verified nongmoproject.org

Formulation

Vegan

Fitness support Supports cellular energy, muscle recovery, and endurance Energy

Non-GMO Gluten free

No wheat, gluten, soybeans, dairy, egg, fish/shellfish, peanuts/tree nuts or sesame.

FDA Statement of Identity

Dietary Supplement

General Statements

Packaged by weight, not by volume.

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

See for yourself

D-Ribose 2 Grams by Jarrow Formulas label

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

D-Ribose 2 Grams 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 D-Ribose 2 Grams by Jarrow Formulas

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size2.2 Gram(s) Dosage formPowder Servings per container90 Amounts shown are per serving.

D-Ribose

Interacts with
86 drugs
2 Gram(s) per serving

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...

D-Ribose monograph & interactions

Other (inactive) ingredients: None. These complete the product’s ingredient list but are not active constituents.

Interaction report

D-Ribose 2 Grams by Jarrow Formulas Drug Interactions

Want to check YOUR meds against D-Ribose 2 Grams?

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
86Drugs
86 Moderate

Ingredients driving the most interactions

D-Ribose 86

Individual Drug Interactions

The ingredients in D-Ribose 2 Grams interact with 86 drugs. Click any drug to see the details.

1 of the 1 ingredient in D-Ribose 2 Grams interact with drugs. Each result below shows which ingredient is responsible. D-Ribose

Each ingredient & the kinds of drugs it affects

For each ingredient in D-Ribose 2 Grams with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

D-Ribose2 drug types · 86 drugs

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.

Likelihood Probable Evidence B
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.

Likelihood Possible Evidence B
D-Ribose full monograph & interactions
The maker

Brand information

Manufacturer and brand details for D-Ribose 2 Grams, from the product label.

Jarrow Formulas

See all Jarrow Formulas products
Name
Jarrow Formulas, Inc.
City
Sherman Oaks
State
CA
ZipCode
91403
Phone Number
1-866-459-4154
Web Address
www.Jarrow.com
Pharmacist Counseling Corner

D-Ribose 2 Grams by Jarrow Formulas: Common Questions

Does D-Ribose 2 Grams by Jarrow Formulas interact with any medications?
Yes. Based on its ingredients, D-Ribose 2 Grams has a known interaction with 86 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
D-Ribose 2 Grams contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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.
Can I take D-Ribose if I'm pregnant or breastfeeding?
There isn't enough safety data to know. The facts advise against it during pregnancy and breastfeeding. Talk with your doctor or pharmacist about your specific situation—they can give you personalized guidance.
What are the most common side effects?
The main ones are diarrhea, gastrointestinal discomfort, headache, and nausea. Because ribose lowers blood sugar, low blood sugar itself is a concern, especially if you take diabetes medication. In some studies, lowering the dose reduced nausea and anxiety.
Does D-Ribose actually improve athletic performance?
No—the evidence rates it as possibly ineffective for athletic performance.
How long is D-Ribose safe to take?
It's generally well tolerated for up to one month. Long-term safety hasn't been well studied, so don't assume it's safe to take indefinitely without checking with your doctor or pharmacist.
Why might D-Ribose lower my blood sugar?
D-Ribose is a five-carbon sugar. In clinical studies, it decreases blood glucose levels in a dose-dependent way and can modestly raise insulin levels—both effects that push blood sugar down.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if D-Ribose 2 Grams is safe with your meds?

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Ask a pharmacist

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.

D-Ribose 2 Grams label
Go deeper

The Full Monographs Behind D-Ribose 2 Grams’s Ingredients

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

Herb & supplement monograph

Ribose

Interacts with 86 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, fibromyalgia, exercise recovery, or heart conditio...

Read the full Ribose monograph →
Sources

Sources & How We Checked

D-Ribose 2 Grams'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 8 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.

Ribose 8 references
  1. Segal S, Foley J. The metabolism of D-ribose in man. J Clin Invest 1958;37:719-35. PubMed
  2. Perlmutter NS, Wilson RA, Angello DA, et al. Ribose facilitates thallium-201 redistribution in patients with coronary artery disease. J Nucl Med 1991;32:193-200.
  3. Hegewald MG, Palac RT, Angello DA, et al. Ribose infusion accelerates thallium redistribution with early imaging compared with late 24-hour imaging without ribose. J Am Coll Cardiol 1991;18:1671-81. PubMed
  4. Pliml W, von Arnim T, Stalein A, et al. Effects of ribose on excercise-induced ischaemia in stable coronary artery disease. Lancet 1992;340:507-10.
  5. Burke ER. D-Ribose What You Need To Know. Garden City Park, NY: Avery Publishing Group 1999;1-43.
  6. Gross M, Reiter S, Zollner N. Metabolism of D-ribose administered continuously to healthy persons and to patients with myoadenylate deaminase deficiency. Klin Wochenschr 1989;67:1205-13. PubMed
  7. Teitelbaum JE, Johnson C, St Cyr J. The use of D-ribose in chronic fatigue syndrome and fibromyalgia: a pilot study. J Altern Complement Med 2006;12:857-62. PubMed
  8. Thompson J, Neutel J, Homer K, Tempero K, Shah A, Khankari R. Evaluation of D-ribose pharmacokinetics, dose proportionality, food effect, and pharmacodynamics after oral solution administration in healthy male and female subjects. J Clin Pharmacol 2014;54 PubMed

See these in context on the Ribose monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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