Advantage Powder Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Advantage Powder 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
Advantage Powder is a dietary supplement by Douglas Laboratories with 10 active ingredients. Its ingredients are commonly taken for high cholesterol, vitamin b3 deficiency (pellagra), heart health support.Based on those ingredients, 769 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Niacin, Vitamin B6, Choline. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Advantage Powder by Douglas Laboratories
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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 Advantage Powder by Douglas 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
Advantage Powder contains 10 ingredients, six of which are active. The primary actives are niacin (also called vitamin B3), which supports energy production and is used to treat certain lipid disorders; vitamin B6 (pyridoxine), essential for nerve function and metabolism; choline, which aids brain health and liver function; papain, an enzyme from papaya; silicon dioxide, a trace mineral linked to bone health; and lecithin, a fatty substance from eggs or soybeans that supports cell function.
The product also contains polysaccharides, mucopolysaccharides, EDTA (a chelating agent), and cellulose as inactive supporting ingredients.
Does it work?
Strong evidence
The evidence for this product's ingredients is mixed. Niacin is likely effective for pellagra (a B3 deficiency disease) and possibly effective for blood lipid problems related to HIV/AIDS and metabolic syndrome.
Vitamin B6 is effective for sideroblastic anemia and B6 deficiency, and likely effective for high homocysteine levels, though it's possibly effective for pregnancy-related nausea. Silicon dioxide is possibly effective for osteoporosis but has insufficient evidence for hair loss.
Papain, lecithin, and choline lack reliable evidence to establish their effectiveness for the conditions listed in our data. Lecithin is actually likely ineffective for Alzheimer's disease.
The overall evidence supporting this product as a whole is not established in the data we hold.
How safe is it?
Well-documented data
Niacin is well tolerated at normal dietary amounts and in prescription doses under medical supervision, but high supplemental doses commonly cause flushing (up to 70% of patients), digestive upset, and rarely liver problems, muscle damage, low platelet counts, or vision changes. Vitamin B6 is well tolerated below 100 mg daily but can cause nerve damage (sensory neuropathy) with high long-term doses over 1,000 mg daily or total doses of 1,000 grams.
Papain is generally tolerated as a food but may cause allergic reactions and digestive irritation at supplement doses; occupational inhalation of papain dust triggers respiratory allergies. Choline is safe in appropriate amounts but can cause fishy body odor and gastrointestinal problems above 3.5 grams daily.
Silicon dioxide from food and supplements is not associated with adverse effects, though inhaled crystalline forms in occupational settings pose serious lung and systemic risks. Lecithin is well tolerated and may rarely trigger allergic skin reactions in people with egg or soy allergies.
Meds to double-check
Moderate interaction found
Before taking this product, check with your pharmacist or doctor if you take blood thinners or antiplatelet drugs (Moderate severity), antihypertensive drugs, liver-affecting medications, diabetes drugs, statins, seizure medications like phenobarbital or phenytoin, gout treatments, or amiodarone. If you take levodopa without carbidopa or use atropine, low-level interactions are possible.
No interactions are documented for silicon dioxide, lecithin, EDTA, polysaccharides, mucopolysaccharides, or cellulose in our data.
The bottom line
Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.
Advantage Powder is most appropriate for people seeking B-vitamin and enzyme support under the guidance of a healthcare provider, particularly those not taking blood thinners, seizure drugs, or diabetes medications. If you take any blood thinner, high blood pressure drug, seizure medication, statin, gout drug, or liver-affecting medication, check your specific prescriptions with a pharmacist before starting.
Talk to your pharmacist or doctor about whether this product fits your health plan.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 6 of 10 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 25, 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 Advantage Powder, straight from the product label.
| Brand | Douglas Laboratories |
|---|---|
| Barcode (UPC) | 310539018071 |
| Net contents | 300 g |
| Market status | On market |
| Date entered into DSLD | Jun 25, 2012 |
| DSLD ID | 8771 |
| Product type | Other Combinations |
| Supplement form | Powder |
| Dietary claims / uses | All Other |
| Intended target group(s) | Adult (18 - 50 Years), Dairy Free, Sugar 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 Advantage Powder by Douglas Laboratories, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calories | 9 {Calories} | -- |
| Total Fat | 1 g | 2% |
| Niacin | 50 mg | 250% |
| Vitamin B6 | 50 mg | 2500% |
| Silicon Dioxide | 50 mg | -- |
| EDTA | 300 mg | -- |
| Papain | 250 mg | -- |
| Choline | 250 mg | -- |
| Polysaccharides | 1500 mg | -- |
| Mucopolysaccharides | 500 mg | -- |
| Lecithin | 2000 mg | -- |
| Cellulose | 100 mg | -- |
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.
FDA Statement of Identity
A Dietary Supplement
Formulation
This product contains NO yeast, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.
Suggested/Recommended/Usage/Directions
Suggested Usage: As a dietary supplement, adults take 1 teaspoon twice daily or as directed by your healthcare professional.
Precautions
KEEP OUT OF REACH OF CHILDREN.
Tamper resistant package, do not use if outer seal is missing.
Storage
For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/(15(0)-25(0)C) (35-65% relative humidity)
General
Formula #7474P
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Advantage Powder by Douglas 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 Advantage Powder by Douglas Laboratories
These are the 10 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 tsp Dosage formPowder Servings per container100 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.
Niacin
Interacts with727 drugs
Niacin (vitamin B3) is an essential nutrient your body needs for energy and metabolism, and deficiency is uncommon in most developed countries. Prescr...
Niacin monograph & interactionsVitamin B6
Interacts with210 drugs
Vitamin B6 (pyridoxine) is an essential water-soluble vitamin that your body needs for metabolism, brain function, and making red blood cells. It is b...
Vitamin B6 monograph & interactionsSilicon Dioxide
No knowninteractions
Silicon is a trace mineral found in the body and in foods like oats, barley, and certain fruits and vegetables, and it is popular in supplements for h...
Silicon Dioxide monograph & interactionsEDTA
Papain
Interacts with2 drugs
Papain is a protein-digesting enzyme from the papaya plant that is used in digestive supplements and some topical products. While it has clear food an...
Papain monograph & interactionsCholine
Interacts with16 drugs
Choline is an essential nutrient your body needs for liver function, brain health, and nerve signaling, and many people get enough from foods like egg...
Choline monograph & interactionsPolysaccharides
Mucopolysaccharides
Lecithin
No knowninteractions
Lecithin is a natural fatty substance found in foods and made by the body that is widely used as a supplement and food emulsifier. Evidence supporting...
Lecithin monograph & interactionsCellulose
Advantage Powder by Douglas Laboratories Drug Interactions
HelloPharmacist Interaction Report
Advantage Powder by Douglas Laboratories contains several ingredients with documented interactions with medications.
The most serious concern involves niacin and blood thinner or antiplatelet drugs (blood thinners like warfarin, aspirin, and clopidogrel), which carry a Moderate severity rating. Niacin may have additive effects with these drugs, and cases of clotting problems and low platelet counts have been reported with sustained-release niacin products.
Read the full breakdown — every affected drug type, severity by severity
Niacin also interacts with antihypertensive drugs (for high blood pressure), drugs that affect the liver, diabetes medications, statins (cholesterol drugs), and gout medications like allopurinol and probenecid — all Moderate severity. Niacin can lower blood pressure further, raise liver enzyme levels, increase blood sugar, and reduce the effectiveness of gout treatments.
Vitamin B6 in this product has Moderate interactions with blood pressure drugs and seizure medications (phenobarbital and phenytoin), and a Minor interaction with levodopa (for Parkinson's disease). Papain interacts with warfarin at Moderate severity, potentially increasing bleeding risk.
Choline has a Minor interaction with atropine.
Additionally, silicon dioxide, lecithin, and EDTA have no documented interactions in our data, though we could not check EDTA. Take bile acid sequestrants (cholestyramine, colestipol) at least 4 to 6 hours apart from this product, as they can block niacin absorption.
Altogether, these interactions span 752 individual medications.
Use the medication checker on this page to verify your exact prescriptions before starting.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Advantage Powder?
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 Advantage Powder interact with 769 drugs. Click any drug to see the details.
4 of the 10 ingredients in Advantage Powder interact with drugs. Each result below shows which ingredient is responsible. Niacin Vitamin B6 Choline Papain
AtropineSal-Tropine
How Atropine interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Atropine interactionAtropine SulfateAtropine Sulfate, Isopto Atropine
How Atropine Sulfate interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Atropine Sulfate interactionAtropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, PhenylAtrosept
How Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl interactionAtropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl SalicylateUrinary Antiseptic 2, Urised
How Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl Salicylate interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl Salicylate interactionAtropine, Chlorpheniramine, Hyoscyamine, Phenylephrine, Phenylpropanolamine, ScopolamineAtrohist Plus, Pro Tuss, Ru-tuss, Stahist
How Atropine, Chlorpheniramine, Hyoscyamine, Phenylephrine, Phenylpropanolamine, Scopolamine interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Atropine, Chlorpheniramine, Hyoscyamine, Phenylephrine, Phenylpropanolamine, Scopolamine interactionAtropine, DifenoxinMotofen
How Atropine, Difenoxin interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Atropine, Difenoxin interactionAtropine, DiphenoxylateLofene, Lomotil
How Atropine, Diphenoxylate interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Atropine, Diphenoxylate interactionAtropine, Hyoscyamine, ScopolamineColytrol
How Atropine, Hyoscyamine, Scopolamine interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Atropine, Hyoscyamine, Scopolamine interactionAtropine, MeperidineAtropine, Meperidine
How Atropine, Meperidine interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Atropine, Meperidine interactionAtropine, Morphine SulfateAtropine, Morphine Sulfate
How Atropine, Morphine Sulfate interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Atropine, Morphine Sulfate interactionBenserazide, LevodopaMadopar, Prolopa
How Benserazide, Levodopa interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Levodopa Minor
Interaction Summary
Vitamin B6 may increase the metabolism of levodopa when taken alone, but not when taken in conjunction with carbidopa.
Read the full Vitamin B6 + Benserazide, Levodopa interactionCarbidopa, LevodopaDhivy, Rytary, Sinemet, Sinemet CR
How Carbidopa, Levodopa interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Levodopa Minor
Interaction Summary
Vitamin B6 may increase the metabolism of levodopa when taken alone, but not when taken in conjunction with carbidopa.
Read the full Vitamin B6 + Carbidopa, Levodopa interactionCarbidopa, Levodopa, EntacaponeStalevo
How Carbidopa, Levodopa, Entacapone interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Levodopa Minor
Interaction Summary
Vitamin B6 may increase the metabolism of levodopa when taken alone, but not when taken in conjunction with carbidopa.
Read the full Vitamin B6 + Carbidopa, Levodopa, Entacapone interactionEdrophonium, AtropineEnlon-Plus
How Edrophonium, Atropine interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
CholineAtropine Minor
Interaction Summary
Theoretically, choline might decrease the effects of atropine in the brain.
Read the full Choline + Edrophonium, Atropine interactionLevodopaInbrija, Larodopa
How Levodopa interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Levodopa Minor
Interaction Summary
Vitamin B6 may increase the metabolism of levodopa when taken alone, but not when taken in conjunction with carbidopa.
Read the full Vitamin B6 + Levodopa interactionLevodopa, CarbidopaDuodopa
How Levodopa, Carbidopa interacts with Advantage Powder — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Levodopa Minor
Interaction Summary
Vitamin B6 may increase the metabolism of levodopa when taken alone, but not when taken in conjunction with carbidopa.
Read the full Vitamin B6 + Levodopa, Carbidopa interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Advantage Powder 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.
Niacin
Alcohol (Ethanol)
Concomitant use of alcohol and niacin might increase the risk of flushing and hepatotoxicity.
Alcohol can exacerbate the flushing and pruritus associated with niacin. Large doses of niacin might also exacerbate liver dysfunction associated with chronic alcohol use. A case report describes delirium and lactic acidosis in a patient taking niacin 3 grams daily who ingested 1 liter of wine. Advise patients to avoid large amounts of alcohol while taking niacin.
Allopurinol (Zyloprim)
Theoretically, niacin might antagonize the therapeutic effects of uricosurics such as allopurinol.
Large doses of niacin can reduce urinary excretion of uric acid, potentially resulting in hyperuricemia. Doses of uricosurics such as allopurinol might need to be increased to maintain control of gout in patients who start taking niacin. People who have frequent attacks of gout despite uricosuric therapy should avoid niacin.
Anticoagulant/Antiplatelet Drugs
Theoretically, niacin may have additive effects when used with anticoagulant or antiplatelet drugs.
Several cases of clotting factor synthesis deficiency and coagulopathy have been reported in patients taking sustained-release niacin. Also, thrombocytopenia has been reported in patients treated with niacin or niacin plus lovastatin.
Antidiabetes Drugs
Niacin can increase blood glucose levels and may diminish the effects of antidiabetes drugs.
Niacin impairs glucose tolerance in a dose-dependent manner, probably by causing or aggravating insulin resistance and increasing hepatic production of glucose. In diabetes patients, niacin 4.5 grams daily for 5 weeks can increase plasma glucose by an average of 16% and glycated hemoglobin (HbA1c) by 21%. However, lower doses of 1.5 grams daily or less appear to have minimal effects on blood glucose. In some patients, glucose levels increase when niacin is started, but then return to baseline when a stable dose is reached. Up to 35% of patients with diabetes may need adjustments in hypoglycemic therapy when niacin is added.
Antihypertensive Drugs
Theoretically, niacin may increase the risk of hypotension when used with antihypertensive drugs.
The vasodilating effects of niacin can cause hypotension. Furthermore, some clinical evidence suggests that a one-hour infusion of niacin can reduce systolic, diastolic, and mean blood pressure in hypertensive patients. This effect is not observed in normotensive patients.
Bile Acid Sequestrants
Bile acid sequestrants can bind niacin and decrease absorption. Separate administration by 4-6 hours to avoid an interaction.
In vitro studies show that colestipol (Colestid) binds about 98% of available niacin and cholestyramine (Questran) binds 10% to 30%.
Gemfibrozil (Lopid)
Theoretically, concomitant use of niacin and gemfibrozil might increase the risk of myopathy in some patients.
A case of myopathy from concomitant use of niacin and gemfibrozil has been reported. Niacin alone has also been associated with cases of myopathy. Using gemfibrozil with niacin might further increase the risk of developing myopathy.
Hepatotoxic Drugs
Theoretically, concomitant use of niacin and hepatotoxic drugs might increase the risk of hepatotoxicity.
Niacin has been associated with cases of liver toxicity, especially when used in pharmacologic doses. Sustained-release niacin preparations appear to be associated with a higher risk of hepatotoxicity than immediate-release niacin.
Hmg-Coa Reductase Inhibitors ("Statins")
Theoretically, concomitant use of niacin and statins might increase the risk of myopathy and rhabdomyolysis in some patients.
Some case reports have raised concerns that niacin might increase the risk of myopathy and rhabdomyolysis when combined with statins. However, a significantly increased risk of myopathy has not been demonstrated in clinical trials, including those using an FDA-approved combination of lovastatin and niacin (Advicor).
Probenecid (Benemid)
Theoretically, niacin might antagonize the therapeutic effects of uricosurics such as probenecid.
Large doses of niacin reduce urinary excretion of uric acid, potentially causing hyperuricemia. Doses of uricosurics such as probenecid might need to be increased to maintain control of gout in patients who start taking niacin. People who have frequent attacks of gout despite uricosuric therapy should avoid niacin.
Sulfinpyrazone (Anturane)
Theoretically, niacin might antagonize the therapeutic effects of uricosurics such as sulfinpyrazone.
Large doses of niacin reduce urinary excretion of uric acid, potentially causing hyperuricemia. Doses of uricosurics such as sulfinpyrazone might need to be increased to maintain control of gout in patients who start taking niacin. People who have frequent attacks of gout despite uricosuric therapy should avoid niacin.
Thyroid Hormone
Theoretically, niacin might antagonize the therapeutic effects of thyroid hormones.
Clinical research and case reports suggests that taking niacin can reduce serum levels of thyroxine-binding globulin by up to 25% and moderately reduce levels of thyroxine (T4). Patients taking thyroid hormone for hypothyroidism might need dose adjustments when using niacin.
Transdermal Nicotine (Nicoderm)
Theoretically, concomitant use of niacin and transdermal nicotine might increase the risk of flushing and dizziness.
Niacin and nicotine can both cause flushing and dizziness.
Warfarin (Coumadin)
There is limited evidence that niacin may increase the anticoagulant effects of warfarin.
In a case report, a patient on warfarin developed an elevated international normalized ratio (INR) of 3.9 after taking niacin for two weeks. The patient's INR was previously stable, ranging between 2 and 3 in recent months, and no other medication changes were identified. The elevated INR returned to therapeutic range within 4 days following the discontinuation of niacin.
Aspirin
Large doses of aspirin might alter the clearance of niacin.
Aspirin is often used with niacin to reduce niacin-induced flushing. Doses of 80-975 mg aspirin have been used, but 325 mg appears to be optimal. Aspirin also seems to reduce the clearance of niacin by competing for glycine conjugation. Taking aspirin 1 gram seems to reduce niacin clearance by 45%. This is probably a dose-related effect and not clinically significant with the more common aspirin dose of 325 mg.
Vitamin B6
Amiodarone (Cordarone)
Theoretically, vitamin B6 might increase the photosensitivity caused by amiodarone.
Despite initial case reports suggesting that pyridoxine may have a protective effect against amiodarone-induced photosensitivity, preliminary clinical research suggests that pyridoxine may actually exacerbate this adverse effect.
Antihypertensive Drugs
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Research in hypertensive rats shows that vitamin B6 can decrease systolic blood pressure. Similarly, clinical research in patients with hypertension shows that taking high doses of vitamin B6 may reduce systolic and diastolic blood pressure, possibly by reducing plasma levels of epinephrine and norepinephrine.
Phenobarbital (Luminal)
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Preliminary clinical evidence suggests that vitamin B6 200 mg daily can reduce plasma levels of phenobarbital, possibly by increasing metabolism. It is not known whether lower doses have any effect. Advise people taking phenobarbital to avoid high doses of vitamin B6.
Phenytoin (Dilantin)
High doses of vitamin B6 may reduce the levels and clinical effects of phenytoin.
Preliminary clinical evidence suggests that vitamin B6 200 mg daily can reduce plasma levels of phenytoin, possibly by increasing metabolism. It is not known whether lower doses have any effect. Advise people taking phenytoin to avoid high doses of vitamin B6.
Levodopa
Vitamin B6 may increase the metabolism of levodopa when taken alone, but not when taken in conjunction with carbidopa.
Vitamin B6 (pyridoxine) enhances the metabolism of levodopa, reducing its clinical effects. However, this interaction does not occur when carbidopa is used concurrently with levodopa (Sinemet). Therefore, it is not likely to be a problem in most people.
Choline
Atropine
Theoretically, choline might decrease the effects of atropine in the brain.
Animal research shows that administering choline one hour before administering atropine can attenuate atropine-induced decreases in brain levels of acetylcholine. Theoretically, concomitant use of choline and atropine may decrease the effects of atropine.
Papain
Warfarin (Coumadin)
Theoretically, papain might increase the effects and side effects of warfarin.
In one case report, a patient previously stable on warfarin was found to have an international normalization ratio (INR) of 7.4, which was attributed to ingestion of a supplement containing papain from papaya extract.
Brand information
Manufacturer and brand details for Advantage Powder, from the product label.
Douglas Laboratories
See all Douglas Laboratories products- Name
- Douglas Laboratories
- Street Address
- 600 Boyce Road
- City
- Pittsburgh
- State
- PA
- ZipCode
- 15205
- Web Address
- www.douglaslabs.com
Advantage Powder by Douglas Laboratories: Common Questions
Does Advantage Powder by Douglas Laboratories interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is it safe to take Advantage Powder while pregnant?
What's the niacin flushing I've heard about?
Can high doses of vitamin B6 in this product damage my nerves?
Will this product help my memory or Alzheimer's disease?
Is there anything else in this powder besides the active ingredients?
Will this interact with my bile acid sequestrant medication for cholesterol?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Advantage Powder’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Niacin
Interacts with 727 drugsNiacin (vitamin B3) is an essential nutrient your body needs for energy and metabolism, and deficiency is uncommon in most developed countries. Prescription-strength niacin has been used to...
Read the full Niacin monograph → Herb & supplement monographVitamin B6
Interacts with 210 drugsVitamin B6 (pyridoxine) is an essential water-soluble vitamin that your body needs for metabolism, brain function, and making red blood cells. It is best known for helping with pregnancy-rel...
Read the full Vitamin B6 monograph → Herb & supplement monographSilicon
Silicon is a trace mineral found in the body and in foods like oats, barley, and certain fruits and vegetables, and it is popular in supplements for hair, skin, nail, and bone health. Some s...
Read the full Silicon monograph → Herb & supplement monographPapain
Interacts with 2 drugsPapain is a protein-digesting enzyme from the papaya plant that is used in digestive supplements and some topical products. While it has clear food and laboratory uses, strong human evidence...
Read the full Papain monograph → Herb & supplement monographCholine
Interacts with 16 drugsCholine is an essential nutrient your body needs for liver function, brain health, and nerve signaling, and many people get enough from foods like eggs, meat, and fish. Supplements may help...
Read the full Choline monograph → Herb & supplement monographLecithin
Lecithin is a natural fatty substance found in foods and made by the body that is widely used as a supplement and food emulsifier. Evidence supporting most of its health claims is limited, t...
Read the full Lecithin monograph →Sources & How We Checked
Advantage Powder'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 151 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.
Niacin 66 references
- Garg R, Malinow MR, Pettinger M, et al. Niacin treatment increases plasma homocysteine levels. Am Heart J 1999;138:1082-7.
- Anon. Inositol hexaniacinate. Altern Med Rev 1998;3:222-3.
- Knodel LC, Talbert RL. Adverse effects of hypolipidaemic drugs. Med Toxicol 1987;2:10-32. PubMed
- Guyton JR, Blazing MA, Hagar J, et al. Extended-release niacin vs gemfibrozil for the treatment of low levels of high-density lipoprotein cholesterol. Niaspan-Gemfibrozil Study Group. Arch Intern Med 2000;160:1177-84. PubMed
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