Glucomannan from Konjac Root Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Glucomannan from Konjac Root 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
Glucomannan from Konjac Root is a dietary supplement by Wonder Laboratories with 2 active ingredients. Its ingredients are commonly taken for weight loss and appetite control, constipation, high cholesterol.Based on those ingredients, 2,056 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Glucomannan, Chromium. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Glucomannan from Konjac Root by Wonder Laboratories
Ask about any prescription or over-the-counter medication and we check it for interactions with Glucomannan from Konjac Root by Wonder Laboratories — 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 Glucomannan from Konjac Root by Wonder Laboratories
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: glucomannan, a soluble fiber from konjac root that absorbs water and forms a thick gel in your digestive tract, and chromium, a mineral that plays a role in how your body handles blood sugar. The capsule itself is made from gelatin, and the product also includes vegetable cellulose and vegetable magnesium stearate as inactive ingredients to bind and flow the formula.
Does it work?
Moderate evidence
For constipation, diabetes, and high cholesterol (hyperlipidemia), glucomannan is possibly effective — the evidence suggests it may help, but it's not definitive. Chromium is likely effective for chromium deficiency and possibly effective for diabetes, though it appears to have little or no benefit for prediabetes, schizophrenia, or high blood pressure.
Your results may depend on your individual situation and how consistently you take it.
How safe is it?
Well-documented data
Glucomannan is generally well tolerated when you take it with plenty of water, but there's a real risk: if you swallow it dry or without enough liquid, it can cause choking or blockage in your throat or digestive tract. Common side effects include belly pain, bloating, constipation, diarrhea, gas, nausea, and vomiting — especially at doses over 3 grams daily.
Chromium is also generally well tolerated at typical supplement doses, though high or long-term doses may carry risks; common side effects include stomach upset, headaches, sleep problems, irritability, and mood changes. For pregnancy, there isn't enough reliable safety data on glucomannan; talk with your doctor before using it.
For chromium, small amounts from food or a prenatal vitamin are considered acceptable, but extra supplement doses should be avoided unless your doctor recommends them. Little is known about glucomannan's safety while breastfeeding, so caution is advised; chromium has limited safety data at higher supplement doses while breastfeeding.
Meds to double-check
Moderate interaction found
Before you take this, double-check with your doctor or pharmacist if you're on oral medications — glucomannan may reduce their absorption. Antidiabetes drugs and insulin (Moderate): chromium may add to their effects and lower your blood sugar too much.
Levothyroxine or other thyroid hormones like Synthroid (Moderate): chromium may reduce how much your body absorbs. NSAIDs and aspirin (Minor): chromium may increase its own absorption when taken with these pain relievers.
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 might be worth considering if you're managing constipation or blood sugar with your doctor's approval — but you'll need to check your medications first because of how glucomannan and chromium can affect absorption and blood-sugar control. If you take diabetes drugs, insulin, thyroid hormone, or regular pain relievers, talk with your doctor or pharmacist before starting.
Always take it with plenty of water to avoid choking or blockage, and remember that your own healthcare provider needs to sign off on whether it's right for you.
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 Jan 22, 2022.
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 Glucomannan from Konjac Root, straight from the product label.
| Brand | Wonder Laboratories |
|---|---|
| Net contents | 120 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jan 22, 2022 |
| DSLD ID | 263125 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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 Glucomannan from Konjac Root by Wonder Laboratories, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Glucomannan | 1800 mg | -- |
| Chromium | 120 mcg | 100% |
Other ingredients: Gelatin, Vegetable Cellulose, Vegetable Magnesium Stearate
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
Directions: Take 4 capsules with a full glass of water approximately 30 minutes before meal time.
Formula
Fiber in the diet is essential for good health. Fiber acts as a bulking agent in the body, which may promote a feeling of fullness. Glucomannan is a dietary fiber source from the root of the konjac plant. It is an excellent addition to a sensible weight loss program. It has been safely consumed for over 1000 years in the Orient.
Now with Chromium
Precautions
Tamper evident: Do not use this product if imprinted foil seal under cap is broken or missing.
Keep out of reach of children.
Caution: If you are pregnant or nursing, consult your physician before taking this product.
Storage
Keep tightly closed. Store at room temperature: 59 degrees-86 degrees F (15 degrees-30 degrees C).
Formulation
Mfg. in an FDA Registered Facility using Good Manufacturing Practices (GMPs). Conforms to USP <2091> for weight. Meets USP <2040> disintegration for maximum bioavailability.
Helps maintain blood sugar levels already within the normal range May promote a feeling of fullness
Made in USA
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.
General Statements
Reorder #6721
FDA Statement of Identity
Dietary supplement
Brand IP Statement(s)
ChromeMate brand of niacin-bound chromium polynicotinate.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Glucomannan from Konjac Root by Wonder Laboratories 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 Glucomannan from Konjac Root by Wonder Laboratories
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size4 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.
Glucomannan
Interacts with2,022 drugs
Glucomannan is a soluble fiber from the konjac root that swells into a gel in your stomach, which may help with mild weight loss, constipation, and mo...
Glucomannan monograph & interactionsChromium
Interacts with178 drugs
Chromium is an essential trace mineral involved in how the body handles sugar and fat. Some studies suggest it may modestly help blood sugar control i...
Chromium monograph & interactionsOther (inactive) ingredients: Gelatin, Vegetable Cellulose, Vegetable Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.
Glucomannan from Konjac Root by Wonder Laboratories Drug Interactions
HelloPharmacist Interaction Report
Glucomannan from Konjac Root by Wonder Laboratories does interact with medications.
Through its glucomannan and chromium content, this product can affect how your body absorbs or processes certain drugs. The most serious concern is a Moderate interaction with oral medications: glucomannan's thick, bulky nature may reduce how well your body absorbs drugs taken by mouth.
A study in healthy volunteers found that glucomannan lowered blood levels of glyburide, a diabetes medication, when taken together.
Read the full breakdown — every affected drug type, severity by severity
Chromium in this product carries Moderate interactions with antidiabetes drugs and insulin — it may add to their blood-sugar-lowering effects and raise your risk of low blood sugar (hypoglycemia). Chromium also has a Moderate interaction with levothyroxine (thyroid replacement hormone like Synthroid); research shows it can reduce levothyroxine absorption by about 17%.
Additionally, chromium has Minor interactions with NSAIDs and aspirin, which may increase how much chromium your body absorbs.
Although glucomannan shows no documented interactions beyond oral drugs, we could not check all inactive ingredients on file for this product. Altogether, these interactions span 2,057 individual medications.
Before you start, run your exact medications through the search tool below, and talk with your doctor or pharmacist if you take diabetes drugs, thyroid hormone, or pain relievers regularly.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Glucomannan from Konjac Root?
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 Glucomannan from Konjac Root interact with 2,056 drugs. Click any drug to see the details.
2 of the 2 ingredients in Glucomannan from Konjac Root interact with drugs. Each result below shows which ingredient is responsible. Glucomannan Chromium
Acetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, PhenyltoloxamineNorel Plus
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + 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 Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorpheniramine, Pseudoephedrine interactionAcetaminophen, ChlorzoxazoneAcetazone Forte, Extra Strength Tylenol Aches & Strains, Parafon Forte
How Acetaminophen, Chlorzoxazone interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorzoxazone interactionAcetaminophen, Chlorzoxazone, CodeineAcetazone Forte C8, Parafon Forte C8
How Acetaminophen, Chlorzoxazone, Codeine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Chlorzoxazone, Codeine interactionAcetaminophen, CodeineTylenol No.3, Tylenol w/ Codeine
How Acetaminophen, Codeine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Codeine interactionAcetaminophen, Codeine, DoxylamineMersyndol
How Acetaminophen, Codeine, Doxylamine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Codeine, Doxylamine interactionAcetaminophen, Codeine, MethocarbamolAcetaminophen, Codeine, Methocarbamol, Robaxacet 8
How Acetaminophen, Codeine, Methocarbamol interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Codeine, Methocarbamol interactionAcetaminophen, Dexbrompheniramine, PseudoephedrineSinadrin Plus
How Acetaminophen, Dexbrompheniramine, Pseudoephedrine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Dexbrompheniramine, Pseudoephedrine interactionAcetaminophen, DextromethorphanTylenol Cough Ex Strength
How Acetaminophen, Dextromethorphan interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Dextromethorphan interactionAcetaminophen, Dextromethorphan, Doxylamine, PseudoephedrineVicks NyQuil
How Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylephrineConar-A
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylpropanolamineAnatuss
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PseudoephedrineRobitussin Cold, Severe Cold, Suphedrine Cold/Cough
How Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Phenylpropanolamine, PyrilamineTheracaps
How Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + 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 Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Dichloralantipyrine, IsomethepteneAmidrine, Midchlor, Migquin, Migratine
How Acetaminophen, Dichloralantipyrine, Isometheptene interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Dichloralantipyrine, Isometheptene interactionAcetaminophen, Dichloralphenazone, IsomethepteneMidrin
How Acetaminophen, Dichloralphenazone, Isometheptene interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Dichloralphenazone, Isometheptene interactionAcetaminophen, Dichlorophenazone, IsometheptaneIsocom
How Acetaminophen, Dichlorophenazone, Isometheptane interacts with Glucomannan from Konjac Root — through 1 ingredient. Tap an ingredient for the detail:
GlucomannanOral Drugs Moderate
Interaction Summary
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Read the full Glucomannan + Acetaminophen, Dichlorophenazone, Isometheptane interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Glucomannan from Konjac Root 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.
Glucomannan
Oral Drugs
Theoretically, glucomannan may decrease absorption of drugs taken orally.
Due to its viscosity and bulking effects, there is concern that glucomannan can decrease the absorption of oral drugs. A small clinical study in healthy volunteers shows that taking glyburide 2.5 mg plus glucomannan 3.9 grams with breakfast reduces plasma levels of glyburide when compared with breakfast and glyburide alone. In addition, animal research demonstrates this effect on amoxicillin, but shows increased absorption of metronidazole. This mouse model also demonstrates that metronidazole elimination is prolonged, but amoxicillin elimination is enhanced by 38%; glucomannan may also affect the distribution of some drugs. To avoid changes in absorption, take glucomannan 30-60 minutes after taking oral drugs.
Chromium
Antidiabetes Drugs
Theoretically, chromium may have additive effects with antidiabetic agents and increase the risk of hypoglycemia.
Some research shows that taking chromium might lower blood glucose levels, especially in patients with poorly controlled type 2 diabetes.
Insulin
Theoretically, concomitant use of chromium and insulin might increase the risk of hypoglycemia.
In clinical research, chromium has been shown to increase insulin sensitivity,
Levothyroxine (Synthroid, Others)
Chromium might bind levothyroxine in the intestinal tract and decrease levothyroxine absorption.
Clinical research in healthy volunteers shows that taking chromium picolinate 1000 mcg with levothyroxine 1 mg decreases serum levels of levothyroxine by 17% when compared to taking levothyroxine alone. Advise patients to take levothyroxine at least 30 minutes before or 3-4 hours after taking chromium.
Aspirin
Theoretically, aspirin might increase chromium absorption.
Animal research suggests that aspirin may increase chromium absorption and chromium levels in the blood.
Nonsteroidal Anti-Inflammatory Drugs (Nsaids)
NSAIDs might increase chromium levels in the body.
Drugs that are prostaglandin inhibitors, such as NSAIDs, seem to increase chromium absorption and retention.
Brand information
Manufacturer and brand details for Glucomannan from Konjac Root, from the product label.
Wonder Laboratories
See all Wonder Laboratories products- Name
- Wonder Laboratories
- Street Address
- 115 S.C.T. Ct.
- City
- White House
- State
- TN
- ZipCode
- 37188
Glucomannan from Konjac Root by Wonder Laboratories: Common Questions
Does Glucomannan from Konjac Root by Wonder Laboratories interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take this if I'm on medication for diabetes?
What are the most common side effects I might notice?
Is this safe to use if I'm pregnant or breastfeeding?
What does glucomannan actually do?
Why do I have to drink so much water with this?
What does the chromium do in this formula?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Glucomannan from Konjac Root is safe with your meds?
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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Glucomannan from Konjac Root’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Glucomannan
Interacts with 2,022 drugsGlucomannan is a soluble fiber from the konjac root that swells into a gel in your stomach, which may help with mild weight loss, constipation, and modestly lowering cholesterol. It is gener...
Read the full Glucomannan monograph → Herb & supplement monographChromium
Interacts with 178 drugsChromium is an essential trace mineral involved in how the body handles sugar and fat. Some studies suggest it may modestly help blood sugar control in certain people with type 2 diabetes, b...
Read the full Chromium monograph →Sources & How We Checked
Glucomannan from Konjac Root'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 68 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.
Glucomannan 15 references
- Henry DA, Mitchell AS, Aylward J, et al. Glucomannan and risk of oesophageal obstruction. Br Med J 1986;292:591-2. PubMed
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