Riboctane Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Riboctane 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
Riboctane is a dietary supplement by Ortho Molecular Products with 3 active ingredients. Its ingredients are commonly taken for energy and fatigue, athletic performance and recovery, fibromyalgia symptoms.Based on those ingredients, 570 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Magnesium, Acetyl L-Carnitine HCl, D-Ribose. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Riboctane by Ortho Molecular Products
Ask about any prescription or over-the-counter medication and we check it for interactions with Riboctane by Ortho Molecular Products — 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 Riboctane by Ortho Molecular Products
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
Riboctane contains three active ingredients. D-Ribose is a simple sugar that plays a role in how your body produces energy.
Acetyl L-Carnitine HCl is an amino acid that helps transport fats for energy production and may support brain and nerve function. Magnesium is a mineral involved in muscle and nerve function, energy production, and bone health.
The product is enclosed in natural vegetable capsules.
Does it work?
Strong evidence
The evidence for D-Ribose is limited: it's rated possibly ineffective for athletic performance and McArdle disease, and there isn't enough reliable evidence to rate it for restless legs syndrome, heart failure, muscle soreness, or recovery after heart bypass surgery. Acetyl L-Carnitine HCl shows more promise and is rated possibly effective for age-related cognitive decline, Alzheimer disease, alcohol use disorder, diabetic nerve pain, and depression.
Magnesium is rated effective for indigestion and constipation, and it's been shown effective for preventing pre-eclampsia in pregnancy.
How safe is it?
Well-documented data
D-Ribose is generally well tolerated short-term but can lower blood sugar, and long-term safety isn't well studied. Most common side effects are diarrhea, gastrointestinal discomfort, headache, nausea, and low blood sugar.
Some people report lightheadedness, anxiety, or increased appetite, though lowering the dose can resolve these. Ribose is best avoided during pregnancy and breastfeeding due to insufficient safety data.
Acetyl L-Carnitine HCl is generally well tolerated, though long-term safety isn't fully established. Common side effects include agitation, dry mouth, headache, insomnia, reduced appetite, and occasionally nausea or digestive upset.
It should be avoided in pregnancy and while breastfeeding unless your doctor advises otherwise. Magnesium is generally safe at recommended doses from food and supplements in healthy adults.
Most common side effects are diarrhea, gastrointestinal irritation, nausea, and vomiting. In pregnancy, magnesium is needed but supplements should be used only under your doctor's guidance; normal dietary amounts are appropriate while breastfeeding, though check with your doctor before using supplements.
Meds to double-check
Major interaction found
Before taking Riboctane, double-check with your doctor or pharmacist if you take Parkinson's medication (levodopa/carbidopa) — this is the most serious interaction and can significantly reduce how well the medication works. Also confirm if you're on blood thinners like warfarin, antidepressants or other mood drugs, thyroid replacement, diabetes or insulin medications, muscle relaxants, potassium-sparing water pills, heart medications (calcium channel blockers), antacids or acid reducers, diabetes drugs (sulfonylureas), quinolone antibiotics, or bisphosphonates.
No interactions are documented for the inactive ingredients.
The bottom line
Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Major medication interactions have been identified, and safety information is well characterized.
Riboctane may be worth considering if you're looking to support energy or cognitive function, but the evidence is strongest only for Acetyl L-Carnitine HCl. If you take Parkinson's medication, blood thinners, antidepressants, thyroid hormone, diabetes medication, insulin, skeletal muscle relaxants, diuretics, heart medication, acid reducers, antibiotics, or bone medications, this product isn't safe to start without checking first.
Talk with your doctor or pharmacist about whether Riboctane is right for you and your medications.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Aug 24, 2012.
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 Riboctane, straight from the product label.
| Brand | Ortho Molecular Products |
|---|---|
| Barcode (UPC) | 615033011222 |
| Net contents | 180 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Aug 24, 2012 |
| DSLD ID | 12313 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | All Other |
| Intended target group(s) | Adult (18 - 50 Years), Gluten 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 Riboctane by Ortho Molecular Products, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| D-Ribose | 3000 mg | -- |
| Acetyl L-Carnitine HCl | 500 mg | -- |
| Magnesium | 75 mg | 19% |
Other ingredients: natural Vegetable Capsules, This product may contain one or more of the following:
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.
Suggested/Recommended/Usage/Directions
SUGGESTED USE: 6 capsules per day in divided doses or as recommended by your health care professional.
Formulation
Formulated to be free of allergens derived from: Gluten, corn, yeast, artificial colors and flavors.
Storage
KEEP CONTAINER TIGHTLY CLOSED. STORE AT ROOM TEMPERATURE.
Precautions
This product was sealed for your protection. Do not use if outer logoed neck seal or inner-seal is missing or damaged.
If you are pregnant or nursing, consult your physician before taking this product.
KEEP OUT OF REACH OF CHILDREN.
As with all dietary supplements, some individuals may not tolerate or may be allergic to the ingredients used. Please read the ingredient panel carefully prior to ingestion. Cease taking this product and consult your physician if you have negative reactions upon ingestion.
General
Product #122180 Label ID L-OMP100-122180-E V2
Seals/Symbols
Vcaps(TM)
Brand IP Statement(s)
Because Efficacy Matters(R)
FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Riboctane by Ortho Molecular Products 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 Riboctane by Ortho Molecular Products
These are the 3 active ingredients this product is made of. Select any to open its full monograph.
Serving size6 Capsule(s) Dosage formCapsule Servings per container30 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.
D-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...
D-Ribose monograph & interactionsAcetyl L-Carnitine HCl
Interacts with203 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 mem...
Acetyl L-Carnitine HCl monograph & interactionsMagnesium
Interacts with295 drugs
Magnesium is an essential mineral your body needs for muscles, nerves, blood pressure, and many other functions, and supplements are useful for preven...
Magnesium monograph & interactionsOther (inactive) ingredients: Natural Vegetable Capsules, This product may contain one or more of the following:. These complete the product’s ingredient list but are not active constituents.
Riboctane by Ortho Molecular Products Drug Interactions
HelloPharmacist Interaction Report
Riboctane by Ortho Molecular Products has documented interactions with multiple medication types across its three active ingredients.
The most serious interaction is Major in severity: magnesium can significantly reduce how your body absorbs levodopa/carbidopa (Sinemet), a Parkinson's medication, cutting levodopa levels by about 35% and carbidopa by 81%.
Read the full breakdown — every affected drug type, severity by severity
D-Ribose and Acetyl L-Carnitine HCl each carry Moderate-severity interactions. Ribose may increase the blood-sugar-lowering effects of antidiabetes drugs and insulin, raising the risk of low blood sugar (hypoglycemia).
Acetyl L-Carnitine HCl may raise the risk of serotonin syndrome with antidepressants and other serotonergic drugs (mood-altering medications), and it may increase the effects of blood thinners (anticoagulants) like warfarin and acenocoumarol, as well as interact with thyroid hormone replacement.
Magnesium carries additional Moderate interactions: it can enhance the effects of skeletal muscle relaxants, interact with potassium-sparing water pills, have additive blood-pressure-lowering effects with calcium channel blockers, reduce the laxative effect of magnesium oxide when taken with acid reducers, increase the risk of low blood sugar with sulfonylureas, and decrease absorption of quinolone antibiotics and bisphosphonates (bone medications). Altogether, these interactions span 570 individual medications.
Check your exact medications with the tool on this page before starting Riboctane.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Riboctane?
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 Riboctane interact with 570 drugs. Click any drug to see the details.
3 of the 3 ingredients in Riboctane interact with drugs. Each result below shows which ingredient is responsible. Magnesium Acetyl L-Carnitine HCl D-Ribose
AcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
D-riboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full D-ribose + Acarbose interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Riboctane — through 2 ingredients. Tap an ingredient for the detail:
Acetyl L-carnitine HclAcenocoumarol (sintrom) Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the anticoagulant effects of acenocoumarol.
Read the full Acetyl L-carnitine Hcl + Acenocoumarol interactionMagnesiumAnticoagulant/antiplatelet Drugs Minor
Interaction Summary
Theoretically, magnesium may have antiplatelet effects, but the evidence is conflicting.
Read the full Magnesium + Acenocoumarol interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, PhenyltoloxamineNorel Plus
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interactionAcetaminophen, Chlorpheniramine, PseudoephedrineAlka-Seltzer PLUS Liquid Gels, Children's Tylenol Cold, Codimal, Comtrex, Extra Strength Tylenol Allergy Sinus, Lorsin +3 more
How Acetaminophen, Chlorpheniramine, Pseudoephedrine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Chlorpheniramine, Pseudoephedrine interactionAcetaminophen, ChlorzoxazoneAcetazone Forte, Extra Strength Tylenol Aches & Strains, Parafon Forte
How Acetaminophen, Chlorzoxazone interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
MagnesiumSkeletal Muscle Relaxants Moderate
Interaction Summary
Parenteral magnesium alters the pharmacokinetics of skeletal muscle relaxants, increasing their effects and accelerating the onset of effect.
Read the full Magnesium + Acetaminophen, Chlorzoxazone interactionAcetaminophen, Chlorzoxazone, CodeineAcetazone Forte C8, Parafon Forte C8
How Acetaminophen, Chlorzoxazone, Codeine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
MagnesiumSkeletal Muscle Relaxants Moderate
Interaction Summary
Parenteral magnesium alters the pharmacokinetics of skeletal muscle relaxants, increasing their effects and accelerating the onset of effect.
Read the full Magnesium + Acetaminophen, Chlorzoxazone, Codeine interactionAcetaminophen, Codeine, MethocarbamolAcetaminophen, Codeine, Methocarbamol, Robaxacet 8
How Acetaminophen, Codeine, Methocarbamol interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
MagnesiumSkeletal Muscle Relaxants Moderate
Interaction Summary
Parenteral magnesium alters the pharmacokinetics of skeletal muscle relaxants, increasing their effects and accelerating the onset of effect.
Read the full Magnesium + Acetaminophen, Codeine, Methocarbamol interactionAcetaminophen, DextromethorphanTylenol Cough Ex Strength
How Acetaminophen, Dextromethorphan interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Dextromethorphan interactionAcetaminophen, Dextromethorphan, Doxylamine, PseudoephedrineVicks NyQuil
How Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylephrineConar-A
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylpropanolamineAnatuss
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PseudoephedrineRobitussin Cold, Severe Cold, Suphedrine Cold/Cough
How Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Phenylpropanolamine, PyrilamineTheracaps
How Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interactionAcetaminophen, Dextromethorphan, PseudoephedrineAlka-Seltzer PLUS Flu Liquid Gels, Non Aspirin Cold Caps, Tylenol Cold, Tylenol Flu Daytime Ex Strength, Tylenol Flu Ex Strength
How Acetaminophen, Dextromethorphan, Pseudoephedrine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, MeperidineDemerol APAP
How Acetaminophen, Meperidine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Meperidine interactionAcetaminophen, MethocarbamolRobaxacet
How Acetaminophen, Methocarbamol interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
MagnesiumSkeletal Muscle Relaxants Moderate
Interaction Summary
Parenteral magnesium alters the pharmacokinetics of skeletal muscle relaxants, increasing their effects and accelerating the onset of effect.
Read the full Magnesium + Acetaminophen, Methocarbamol interactionAcetaminophen, OrphenadrineOrfenagesic
How Acetaminophen, Orphenadrine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
MagnesiumSkeletal Muscle Relaxants Moderate
Interaction Summary
Parenteral magnesium alters the pharmacokinetics of skeletal muscle relaxants, increasing their effects and accelerating the onset of effect.
Read the full Magnesium + Acetaminophen, Orphenadrine interactionAcetaminophen, Phenylephrine, ChlorpheniramineSuper Cold Tabs
How Acetaminophen, Phenylephrine, Chlorpheniramine interacts with Riboctane — through 1 ingredient. Tap an ingredient for the detail:
Acetyl L-carnitine HclSerotonergic Drugs Moderate
Interaction Summary
Theoretically, acetyl-L-carnitine might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders, when taken with serotonergic drugs.
Read the full Acetyl L-carnitine Hcl + Acetaminophen, Phenylephrine, Chlorpheniramine interactionAcetohexamideDymelor
How Acetohexamide interacts with Riboctane — through 2 ingredients. Tap an ingredient for the detail:
D-riboseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking ribose in combination with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full D-ribose + Acetohexamide interactionMagnesiumSulfonylureas Moderate
Interaction Summary
Magnesium increases the systemic absorption of sulfonylureas, increasing their effects and side effects.
Read the full Magnesium + Acetohexamide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Riboctane 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.
Magnesium
Levodopa/Carbidopa (Sinemet)
Magnesium can reduce the bioavailability of levodopa/carbidopa.
Clinical research in healthy volunteers shows that taking magnesium oxide 1000 mg with levodopa 100 mg/carbidopa 10 mg reduces the area under the curve (AUC) of levodopa by 35% and of carbidopa by 81%. In vitro and animal research shows that magnesium produces an alkaline environment in the digestive tract, which might lead to degradation and reduced bioavailability of levodopa/carbidopa.
Aminoglycoside Antibiotics
Concomitant use of aminoglycoside antibiotics and magnesium can increase the risk for neuromuscular weakness.
Both aminoglycosides and magnesium reduce presynaptic acetylcholine release, which can lead to neuromuscular blockade and possible paralysis. This is most likely to occur with high doses of magnesium given intravenously.
Antacids
Use of acid reducers may reduce the laxative effect of magnesium oxide.
A retrospective analysis shows that, in the presence of H2 receptor antagonists (H2RAs) or proton pump inhibitors (PPIs), a higher dose of magnesium oxide is needed for a laxative effect. This may also occur with antacids. Under acidic conditions, magnesium oxide is converted to magnesium chloride and then to magnesium bicarbonate, which has an osmotic laxative effect. By reducing acidity, antacids may reduce the conversion of magnesium oxide to the active bicarbonate salt.
Bictegravir/Emtricitabine/Tenofovir Alafenamide (Biktarvy)
Magnesium might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Advise patients that bictegravir/emtricitabine/tenofovir alafenamide should be taken at least 2 hours before or 6 hours after magnesium containing products.
Bisphosphonates
Magnesium can decrease absorption of bisphosphonates.
Cations, including magnesium, can decrease bisphosphonate absorption. Advise patients to separate doses of magnesium and these drugs by at least 2 hours.
Calcium Channel Blockers
Magnesium can have additive effects with calcium channel blockers, although evidence is conflicting.
Magnesium inhibits calcium entry into smooth muscle cells and may therefore have additive effects with calcium channel blockers. Severe hypotension and neuromuscular blockades may occur when nifedipine is used with intravenous magnesium, although some contradictory evidence suggests that concurrent use of magnesium with nifedipine does not increase the risk of neuromuscular weakness. High doses of magnesium could theoretically have additive effects with other calcium channel blockers.
Digoxin
Magnesium salts may reduce absorption of digoxin.
Clinical evidence suggests that treatment with oral magnesium hydroxide or magnesium trisilicate reduces absorption of digoxin from the intestines. This may reduce the blood levels of digoxin and decrease its therapeutic effects.
Potassium-Sparing Diuretics
Potassium-sparing diuretics decrease excretion of magnesium, possibly increasing magnesium levels.
Potassium-sparing diuretics also have magnesium-sparing properties, which can counteract the magnesium losses associated with loop and thiazide diuretics. Theoretically, increased magnesium levels could result from concomitant use of potassium-sparing diuretics and magnesium supplements.
Quinolone Antibiotics
Magnesium decreases absorption of quinolones.
Magnesium can form insoluble complexes with quinolones and decrease their absorption. Advise patients to take these drugs at least 2 hours before, or 4 to 6 hours after, magnesium supplements.
Skeletal Muscle Relaxants
Parenteral magnesium alters the pharmacokinetics of skeletal muscle relaxants, increasing their effects and accelerating the onset of effect.
Parenteral magnesium shortens the time to onset of skeletal muscle relaxants by about 1 minute and prolongs the duration of action by about 2 minutes. Magnesium potentiates the effects of skeletal muscle relaxants by decreasing calcium-mediated release of acetylcholine from presynaptic nerve terminals, reducing postsynaptic sensitivity to acetylcholine, and having a direct effect on the membrane potential of myocytes. Magnesium also has vasodilatory actions and increases cardiac output, allowing a greater amount of muscle relaxant to reach the motor end plate. A clinical study found that low-dose rocuronium (0.45 mg/kg), when given after administration of magnesium 30 mg/kg over 10 minutes, has an accelerated onset of effect, which matches the onset of effect seen with a full-dose rocuronium regimen (0.6 mg/kg). In another clinical study, onset times for rocuronium doses of 0.3, 0.6, and 1.2 mg/kg were 86, 76, and 50 seconds, respectively, when given alone, but were reduced to 66, 44, and 38 seconds, respectively, when the doses were given after a 15-minute infusion of magnesium sulfate 60 mg/kg. Giving intraoperative intravenous magnesium sulfate, 50 mg/kg loading dose followed by 15 mg/kg/hour, reduces the onset time of rocuronium, enhances its clinical effects, reduces the dose of intraoperative opiates, and prolongs the spontaneous recovery time. It does not affect the activity of subsequently administered neostigmine.
Sulfonylureas
Magnesium increases the systemic absorption of sulfonylureas, increasing their effects and side effects.
Clinical research shows that administration of magnesium hydroxide with glyburide increases glyburide absorption, increases maximal insulin response by 35-fold, and increases the risk of hypoglycemia, when compared with glyburide alone. A similar interaction occurs between magnesium hydroxide and glipizide. The mechanism of this effect appears to be related to the elevation of gastrointestinal pH by magnesium-based antacids, increasing solubility and enhancing absorption of sulfonylureas.
Tetracycline Antibiotics
Magnesium decreases absorption of tetracyclines.
Magnesium can form insoluble complexes with tetracyclines in the gut and decrease their absorption and antibacterial activity. Advise patients to take these drugs 1 hour before or 2 hours after magnesium supplements.
Anticoagulant/Antiplatelet Drugs
Theoretically, magnesium may have antiplatelet effects, but the evidence is conflicting.
In vitro evidence shows that magnesium sulfate inhibits platelet aggregation, even at low concentrations. Some preliminary clinical evidence shows that infusion of magnesium sulfate increases bleeding time by 48% and reduces platelet activity. However, other clinical research shows that magnesium does not affect platelet aggregation, although inhibition of platelet-dependent thrombosis can occur.
Gabapentin (Neurontin)
Gabapentin absorption can be decreased by magnesium.
Clinical research shows that giving magnesium oxide orally along with gabapentin decreases the maximum plasma concentration of gabapentin by 33%, time to maximum concentration by 36%, and area under the curve by 43%. Advise patients to take gabapentin at least 2 hours before, or 4 to 6 hours after, magnesium supplements.
Sevelamer (Renagel, Renvela)
Sevelamer may increase serum magnesium levels.
In patients on hemodialysis, sevelamer use was associated with a 0.28 mg/dL increase in serum magnesium. The mechanism of this interaction remains unclear.
Acetyl L-Carnitine HCl
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.
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.
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.
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.
D-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.
Brand information
Manufacturer and brand details for Riboctane, from the product label.
Ortho Molecular Products
See all Ortho Molecular Products products- Name
- Ortho Molecular Products, Inc.
- Street Address
- 3017 Business Park Drive
- City
- Stevens Point
- State
- WI
- ZipCode
- 54482
Riboctane by Ortho Molecular Products: Common Questions
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Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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The Full Monographs Behind Riboctane’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Ribose
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 → Herb & supplement monographAcetyl-l-carnitine
Interacts with 203 drugsAcetyl-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 monographMagnesium
Interacts with 295 drugsMagnesium is an essential mineral your body needs for muscles, nerves, blood pressure, and many other functions, and supplements are useful for preventing or correcting deficiency. Some othe...
Read the full Magnesium monograph →Sources & How We Checked
Riboctane'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 112 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
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- 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.
- Burke ER. D-Ribose What You Need To Know. Garden City Park, NY: Avery Publishing Group 1999;1-43.
- 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
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Acetyl-l-carnitine 22 references
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- Sano M, Bell K, Cote L, et al. Double-blind parallel design pilot study of acetyl levocarnitine in patients with Alzheimer's Disease. Arch Neurol 1992;49:1137-41. PubMed
- Spagnoli A, Lucca U, Menasce G, et al. Long-term acetyl-L-carnitine treatment in Alzheimer's Disease. Neurology 1991;41:1726-32. PubMed
- Brooks JO 3rd, Yesavage JA, Carta A, Bravi D. Acetyl L-carnitine slows decline in younger patients with Alzheimer's disease: a reanalysis of a double-blind, placebo-controlled study using the trilinear approach. Int Psychoger 1998;10:193-203. PubMed
- Pettegrew JW, Klunk WE, Panchalingam K, et al. Clinical and neurochemical effects of acetyl-L-carnitine in Alzheimer's disease. Neurobiol Aging 1995;16:1-4. PubMed
- Rai G, Wright G, Scott L, et al. Double-blind, placebo controlled study of acetyl-l-carnitine in patients with Alzheimer's dementia. Curr Med Res Opin 1990;11:638-47. PubMed
- Benvenga S, Ruggeri RM, Russo A, et al. Usefulness of L-carnitine, a naturally occurring peripheral antagonist of thyroid hormone action, in iatrogenic hyperthyroidism: a randomized, double-blind, placebo-controlled clinical trial. J Clin Endocrinol Meta
- Montgomery SA, Thal LJ, Amrein R. Meta-analysis of double blind randomized controlled clinical trials of acetyl-L-carnitine versus placebo in the treatment of mild cognitive impairment and mild Alzheimer's disease. Int Clin Psychopharmacol 2003;18:61-71.. PubMed
- Martinez E, Domingo P, Roca-Cusachs A. Potentiation of acenocoumarol action by L-carnitine. J Intern Med 1993;233:94.
- Hudson S, Tabet N. Acetyl-L-carnitine for dementia. Cochrane Database Syst Rev 2003;2:CD003158.. PubMed
- Bachmann HU, Hoffmann A. Interaction of food supplement L-carnitine with oral anticoagulant acenocoumarol. Swiss Med Wkly 2004;134:385. PubMed
- De Grandis D, Minardi C. Acetyl-L-carnitine (levacecarnine) in the treatment of diabetic neuropathy. A long-term, randomised, double-blind, placebo-controlled study. Drugs R D 2002;3:223-31. PubMed
- 12761 Benvenga S, Amato A, Calvani M, Trimarchi F. Effects of carnitine on thyroid hormone action. Ann N Y Acad Sci 2004;1033:158-67. PubMed
- Sima AAF, Calvani M, Mehra M, et al. Acetyl-L-carnitine improves pain, nerve regeneration, and vibratory perception in patients with chronic diabetic neuropathy: An analysis of two randomized, placebo-controlled trials. Diabetes Care 2005;28:89-94.
- Youle, M. and Osio, M. A double-blind, parallel-group, placebo-controlled, multicentre study of acetyl L-carnitine in the symptomatic treatment of antiretroviral toxic neuropathy in patients with HIV-1 infection. HIV.Med. 2007;8(4):241-250.
- Brennan BP, Jensen JE, Hudson JI, Coit CE, Beaulieu A, Pope HG Jr, Renshaw PF, Cohen BM. A placebo-controlled trial of acetyl-L-carnitine and a-lipoic acid in the treatment of bipolar depression. J Clin Psychopharmacol. 2013 Oct;33(5):627-35.
- Ledinek AH, Sajko MC, Rot U. Evaluating the effects of amantadin, modafinil and acetyl-L-carnitine on fatigue in multiple sclerosis--result of a pilot randomized, blind study. Clin Neurol Neurosurg. 2013 Dec;115 Suppl 1:S86-9. PubMed
- Martinotti G, Andreoli S, Reina D, Di Nicola M, Ortolani I, Tedeschi D, Fanella F, Pozzi G, Iannoni E, D'Iddio S, Prof LJ. Acetyl-l-Carnitine in the treatment of anhedonia, melancholic and negative symptoms in alcohol dependent subjects. Prog Neuropsychop PubMed
- Baek SM, Zheng R, Seo EJ, Hwang DY, Kim BH. Pharmacokinetic comparisons of two acetyl-L-carnitine formulations in healthy Korean volunteers. Int J Clin Pharmacol Ther. 2015;53(11):980-6. PubMed
- Goodison G, Overeem K, de Monte V, Siskind D. Mania associated with self-prescribed acetyl-l-carnitine in a man with bipolar I disorder. Australas Psychiatry. 2017;25(1):13-4.
- Bruno A, Pandolfo G, Crucitti M, Lorusso S, Zoccali RA, Muscatello MR. Acetyl-L-Carnitine Augmentation of Clozapine in Partial-Responder Schizophrenia: A 12-Week, Open-Label Uncontrolled Preliminary Study. Clin Neuropharmacol. 2016;39(6):277-80. PubMed
- Veronese N, Stubbs B, Solmi M, Ajnakina O, Carvalho AF, Maggi S. Acetyl-L-Carnitine Supplementation and the Treatment of Depressive Symptoms: A Systematic Review and Meta-Analysis. Psychosom Med. 2018;80(2):154-9. PubMed
Magnesium 82 references
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- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride. Washington, DC: National Academy Press, 1999. Available at: http://books.nap.edu/books/0309063507/html/index.html.
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