Coenzymated B-6 25 mg Ingredients & Drug Interactions
by Source Naturals
What is this page for?
First and foremost: checking Coenzymated B-6 25 mg 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
Coenzymated B-6 25 mg is a dietary supplement by Source Naturals with 1 active ingredient. Its ingredients are commonly taken for morning sickness in pregnancy, premenstrual syndrome (pms), preventing or treating b6 deficiency.Based on those ingredients, 210 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Vitamin B6. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Coenzymated B-6 25 mg by Source Naturals
Ask about any prescription or over-the-counter medication and we check it for interactions with Coenzymated B-6 25 mg by Source Naturals — 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 Coenzymated B-6 25 mg by Source Naturals
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 one active ingredient: pyridoxal 5-phosphate, a form of vitamin B6 that your body uses readily. The inactive ingredients are sorbitol, mannitol, natural peppermint flavor, magnesium stearate, and modified cellulose gum — these are fillers, sweeteners, and binders that hold the tablet together.
Does it work?
Strong evidence
Vitamin B6 in this form is effective for sideroblastic anemia and B6 deficiency itself. It's also effective for a rare genetic condition called pyridoxine-dependent epilepsy.
The evidence is likely effective for lowering homocysteine (a blood marker linked to heart health) and possibly effective for pregnancy-related nausea and vomiting — though if you're pregnant and considering it, talk with your doctor first about dosing and timing.
How safe is it?
Well-documented data
Vitamin B6 is generally well tolerated at doses under 100 mg daily, which includes this 25 mg tablet. Common side effects at recommended doses are mild and rare — headache, nausea, abdominal pain, or loss of appetite.
The main safety concern is nerve damage (sensory neuropathy) with very high doses over time — doses exceeding 1,000 mg daily or total lifetime doses of 1,000 grams or more carry the highest risk, though neuropathy can occur even at lower doses with prolonged use. For pregnancy, the safety data shows it's likely safe, though one rating notes possibly unsafe — talk with your doctor about whether it's right for you during pregnancy.
During breastfeeding, it's considered likely safe.
Meds to double-check
Moderate interaction found
Before taking this product, check with your pharmacist if you're on any blood pressure medications, amiodarone (Cordarone), phenobarbital (Luminal), phenytoin (Dilantin), or levodopa. The interaction checker on this page will flag your specific drugs.
The bottom line
Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This low-dose B6 supplement is a good option if you have a B6 deficiency, sideroblastic anemia, or want to try it for pregnancy nausea under your doctor's supervision. Be cautious if you're on blood pressure medications, seizure drugs, amiodarone, or levodopa alone — check with your pharmacist first.
At 25 mg per dose, you're well below the high-dose threshold where nerve damage becomes a serious concern.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Aug 23, 2023.
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 Coenzymated B-6 25 mg, straight from the product label.
| Brand | Source Naturals |
|---|---|
| Barcode (UPC) | 021078009412 |
| Net contents | 60 Tablet(s) |
| Market status | On market |
| Date entered into DSLD | Aug 23, 2023 |
| DSLD ID | 295653 |
| Product type | Vitamin |
| Supplement form | Tablet Or Pill |
| 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 Coenzymated B-6 25 mg by Source Naturals, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin B6 | 17 mg | 850% |
| Pyridoxal 5-Phosphate | 25 mg | -- |
Other ingredients: Sorbitol, Mannitol, natural Peppermint flavor, Magnesium Stearate, Modified Cellulose Gum
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.
Formula
Coenzymated B-6 P-5' -P (pyridoxal-5' -phosphate)
The benefits of Coenzymated sublingual vitamins In order for vitamins to be utilized by the body, they must first be converted into their active coenzyme forms. This coenzymated sublingual B-6 goes directly into your bloodstream in its active form, ready to go to work immediately. This avoids the loss that may occur not only during digestion but during the liver’s conversion process as well. Pyridoxal-5’ -phosphate (PLP or P-5’ -P) is the main metabolically active coenzyme form of vitamin B-6. It is primarily in the liver that P-5' -P is synthesized from pyridoxine, with the help of enzymes that require B-2, zinc and magnesium for their activity. P-5’-P is associated with numerous enzymes, many of which are involved in the conversion of amino acids into the neurotransmitters dopamine, norepinephrine and serotonin. P-5'-P is also required for the synthesis of the hemoglobin molecule.
Formulation
Supports amino acid metabolism
Suggested/Recommended/Usage/Directions
Suggested use: 1 tablet daily. Place tablet under the tongue and allow to dissolve slowly, altering the position of the tablet to avoid prolonged contact with the same area.
Precautions
Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.
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.
FDA Statement of Identity
Dietary Supplement
Brand IP Statement(s)
Copyright Source Naturals, Inc.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Coenzymated B-6 25 mg by Source Naturals 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 Coenzymated B-6 25 mg by Source Naturals
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container60 Amounts shown are per serving.
Vitamin 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 & interactionsOther (inactive) ingredients: Sorbitol, Mannitol, Natural Peppermint flavor, Magnesium Stearate, Modified Cellulose Gum. These complete the product’s ingredient list but are not active constituents.
Coenzymated B-6 25 mg by Source Naturals Drug Interactions
HelloPharmacist Interaction Report
Coenzymated B-6 25 mg by Source Naturals contains pyridoxal 5-phosphate, a form of vitamin B6 that interacts with several medication types.
The most serious documented interaction is with blood pressure drugs (antihypertensives): vitamin B6 may add to their blood-pressure-lowering effects, which could drop your pressure too far if you're already on these medications.
Read the full breakdown — every affected drug type, severity by severity
You'll also want to check if you take the heart rhythm medication amiodarone (Cordarone) — vitamin B6 might make it more likely to cause photosensitivity (unusual sun sensitivity). Additionally, high doses of vitamin B6 can reduce blood levels and effectiveness of two seizure medications: phenobarbital (Luminal) and phenytoin (Dilantin).
This product supplies 25 mg per dose, which is below the 200 mg threshold noted in the research, but it's still worth discussing with your pharmacist if you're on either seizure drug.
If you take levodopa for Parkinson's disease, the interaction only matters if you're on levodopa alone — it doesn't occur when levodopa is combined with carbidopa (as in the combination product Sinemet), so check your exact prescription.
Altogether, these interactions span 210 individual medications. Run your current prescriptions through the interaction checker below before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Coenzymated B-6 25 mg?
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 Coenzymated B-6 25 mg interact with 210 drugs. Click any drug to see the details.
1 of the 1 ingredient in Coenzymated B-6 25 mg interact with drugs. Each result below shows which ingredient is responsible. Vitamin B6
AcebutololRhotral, Sectral
How Acebutolol interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Acebutolol interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Acetazolamide interactionAliskirenTekturna
How Aliskiren interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Aliskiren interactionAmbrisentanLetairis, Volibris
How Ambrisentan interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Ambrisentan interactionAmilorideAmilamont, Midamor
How Amiloride interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Amiloride interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Amiloride, Hydrochlorothiazide interactionAmiodaroneCordarone, Pacerone
How Amiodarone interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAmiodarone (cordarone) Moderate
Interaction Summary
Theoretically, vitamin B6 might increase the photosensitivity caused by amiodarone.
Read the full Pyridoxal 5-phosphate + Amiodarone interactionAmlodipineNorliqva
How Amlodipine interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Amlodipine interactionAmlodipine BenzoateKaterzia
How Amlodipine Benzoate interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Amlodipine Benzoate interactionAmlodipine BesilateIstin
How Amlodipine Besilate interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Amlodipine Besilate interactionAmlodipine BesylateNorvasc
How Amlodipine Besylate interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Amlodipine Besylate interactionAmlodipine Besylate, BenazeprilLotrel
How Amlodipine Besylate, Benazepril interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Amlodipine Besylate, Benazepril interactionAmlodipine, CelecoxibConsensi
How Amlodipine, Celecoxib interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Amlodipine, Celecoxib interactionAmmonium ChlorideAmmonium Chloride
How Ammonium Chloride interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Ammonium Chloride interactionAprobarbital, Butabarbital, PhenobarbitalTriple Barbital
How Aprobarbital, Butabarbital, Phenobarbital interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphatePhenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Pyridoxal 5-phosphate + Aprobarbital, Butabarbital, Phenobarbital interactionAprocitentanTryvio
How Aprocitentan interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Aprocitentan interactionAspirin, Codeine Phosphate, PhenobarbitalPhenaphen
How Aspirin, Codeine Phosphate, Phenobarbital interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphatePhenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Pyridoxal 5-phosphate + Aspirin, Codeine Phosphate, Phenobarbital interactionAtenololAtenix, Tenormin
How Atenolol interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Atenolol interactionAtenolol, ChlortalidoneAtenixCo, Tenoret 50, Totaretic
How Atenolol, Chlortalidone interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Atenolol, Chlortalidone interactionAtenolol, ChlorthalidoneTenoretic
How Atenolol, Chlorthalidone interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Atenolol, Chlorthalidone interactionAtropine, Hyoscyamine, PhenobarbitalHypnaldyne
How Atropine, Hyoscyamine, Phenobarbital interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphatePhenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Pyridoxal 5-phosphate + Atropine, Hyoscyamine, Phenobarbital interactionAtropine, Hyoscyamine, Phenobarbital, ScopolamineBarbidonna No. 2, Belladonna Phenobarbital
How Atropine, Hyoscyamine, Phenobarbital, Scopolamine interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphatePhenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Pyridoxal 5-phosphate + Atropine, Hyoscyamine, Phenobarbital, Scopolamine interactionAtropine, Hyoscyamine, Scopolamine, PhenobarbitalBarbeloid, Donnatal #2, Donphen
How Atropine, Hyoscyamine, Scopolamine, Phenobarbital interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphatePhenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Pyridoxal 5-phosphate + Atropine, Hyoscyamine, Scopolamine, Phenobarbital interactionAtropine, PhenobarbitalAnthrocol
How Atropine, Phenobarbital interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphatePhenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Pyridoxal 5-phosphate + Atropine, Phenobarbital interactionAzilsartanEdarbi
How Azilsartan interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Azilsartan interactionAzilsartan, ChlorthalidoneEdarbyclor
How Azilsartan, Chlorthalidone interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphateAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Pyridoxal 5-phosphate + Azilsartan, Chlorthalidone interactionBelladona Extract, PhenobarbitalChardonna-2
How Belladona Extract, Phenobarbital interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphatePhenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Pyridoxal 5-phosphate + Belladona Extract, Phenobarbital interactionBelladonna Alkaloids, Ergotamine Tartrate, PhenobarbitalBel Tabs, Bellamine-S, Bellaphen-S, Duragal S, Phenarbal S, Spastrin
How Belladonna Alkaloids, Ergotamine Tartrate, Phenobarbital interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphatePhenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Pyridoxal 5-phosphate + Belladonna Alkaloids, Ergotamine Tartrate, Phenobarbital interactionBelladonna Alkaloids, PhenobarbitalBarbidonna, Donnatal
How Belladonna Alkaloids, Phenobarbital interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphatePhenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Pyridoxal 5-phosphate + Belladonna Alkaloids, Phenobarbital interactionBelladonna Extract, PhenobarbitalBelap
How Belladonna Extract, Phenobarbital interacts with Coenzymated B-6 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pyridoxal 5-phosphatePhenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Pyridoxal 5-phosphate + Belladonna Extract, Phenobarbital interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Coenzymated B-6 25 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
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.
Brand information
Manufacturer and brand details for Coenzymated B-6 25 mg, from the product label.
Source Naturals
- Name
- Source Naturals, Inc.
- Street Address
- P. O. Box 2118
- City
- Santa Cruz
- State
- CA
- ZipCode
- 95062
- Web Address
- www.sourcenaturals.com
Coenzymated B-6 25 mg by Source Naturals: Common Questions
Does Coenzymated B-6 25 mg by Source Naturals 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 pregnant?
Is this safe to take long-term?
What are the common side effects?
Will this actually fix a B6 deficiency?
What's pyridoxal 5-phosphate and why is it different from regular B6?
Is this safe to breastfeed on?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Coenzymated B-6 25 mg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Coenzymated B-6 25 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Coenzymated B-6 25 mg'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 32 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.
Vitamin B6 32 references
- Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
- Yates AA, Schlicker SA, Suitor CW. Dietary reference intakes: The new basis for recommendations for calcium and related nutrients, B vitamins, and choline. J Am Diet Assoc 1998;98:699-706. PubMed
- Geerling BJ, Dagnelie PC, Badart-Smook A, et al. Diet as a risk factor for the development of ulcerative colitis. Am J Gastroenterol 2000;95:1008-13. PubMed
- South M. Neonatal seizures after pyridoxine use -- reply. Lancet 1999;354:2083. PubMed
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (2000). Washington, DC: National Academy Press, 2000. Available at: http://b
- Baxter P, Aicardi J. Neonatal seizures after pyridoxine use. Lancet 1999;354:2082-3. PubMed
- Bendich A, Cohen M. Vitamin B6 safety issues. Ann N Y Acad Sci 1990;585:321-30.
- Schaumburg H, Kaplan J, Windebank A. Sensory neuropathy from pyridoxine abuse. A new megavitamin syndrome. N Engl J Med 1983;309:445-8. PubMed
- Gordon N. Pyridoxine dependency: an update. Dev Med Child Neurol 1997;39:63-5. PubMed
- Lewis PJ. Pain in the hand and wrist. Pyridoxine supplements may help patients with carpal tunnel syndrome. BMJ 1995;310:1534. PubMed
- Kaufman G. Pyridoxine against amiodarone-induced photosensitivity (letter). Lancet 1984;1:51-2. PubMed
- Mulrow JP, Mulrow CD, McKenna WJ. Pyridoxine and amiodarone-induced photosensitivity. Ann Intern Med 1985;103:68-9. PubMed
- Kawada A, Kashima A, Shiraishi H, et al. Pyridoxine-induced photosensitivity and hypophosphatasia. Dermatology 2000;201:356-60.. PubMed
- Vasile A, Goldberg R, Kornberg B. Pyridoxine toxicity: report of a case. J Am Osteopath Assoc 1984;83:790-1. DOI
- Hansson O, Sillanpaa M. Pyridoxine and serum concentration of phenytoin and phenobarbitone. Lancet 1976;1:256. DOI
- Jansen T, Romiti R, Kreuter A, Altmeyer P. Rosacea fulminans triggered by high-dose vitamins B6 and B12. J Eur Acad Dermatol Venereol 2001;15:484-5..
- Chittumma P, Kaewkiattikun K, Wiriyasiriwach B. Comparison of the effectiveness of ginger and vitamin B6 for treatment of nausea and vomiting in early pregnancy: a randomized double-blind controlled trial. J Med Assoc Thai 2007;90:15-20.
- Hatzitolios, A., Iliadis, F., Katsiki, N., and Baltatzi, M. Is the anti-hypertensive effect of dietary supplements via aldehydes reduction evidence based? A systematic review. Clin Exp.Hypertens. 2008;30(7):628-639. PubMed
- Vasdev, S., Ford, C. A., Parai, S., Longerich, L., and Gadag, V. Dietary vitamin B6 supplementation attenuates hypertension in spontaneously hypertensive rats. Mol.Cell Biochem. 1999;200(1-2):155-162.
- de, Vogel S., Dindore, V., van, Engeland M., Goldbohm, R. A., van den Brandt, P. A., and Weijenberg, M. P. Dietary folate, methionine, riboflavin, and vitamin B-6 and risk of sporadic colorectal cancer. J Nutr 2008;138(12):2372-2378. PubMed
- Hagen, I., Nesheim, B. I., and Tuntland, T. No effect of vitamin B-6 against premenstrual tension. A controlled clinical study. Acta Obstet.Gynecol.Scand. 1985;64(8):667-670. PubMed
- Aybak, M., Sermet, A., Ayyildiz, M. O., and Karakilcik, A. Z. Effect of oral pyridoxine hydrochloride supplementation on arterial blood pressure in patients with essential hypertension. Arzneimittelforschung. 1995;45(12):1271-1273.
- Lal, K. J., Dakshinamurti, K., and Thliveris, J. The effect of vitamin B6 on the systolic blood pressure of rats in various animal models of hypertension. J Hypertens. 1996;14(3):355-363. PubMed
- Lauritzen CH, Reuter HD, Repges R, Bohnert K, and Schmidt U. Treatment of premenstrual tension syndrome with Vitex agnus castus. Controlled, double-blind study versus pyridoxine. Phytomed 1997;4(3):183-189. PubMed
- Fonseca VA, Lavery LA, Thethi TK, et al. Metanx in type 2 diabetes with peripheral neuropathy: A randomized trial. Am J Med 2013;126(2):141-9. PubMed
- Hankey GJ, Eikelboom JW, Yi Q, et al. Treatment with B vitamins and incidence of cancer in patients with previous stroke or transient ischemic attack: Results of a randomized placebo-controlled trial. Stroke 2012;43(6):1572-7. PubMed
- Hoyer-Kuhn H, Kohbrok S, Volland R, Franklin J, Hero B, Beck BB, Hoppe B. Vitamin B6 in primary hyperoxaluria I: first prospective trial after 40 years of practice. Clin J Am Soc Nephrol. 2014 Mar;9(3):468-77. PubMed
- Mahmoud A, Tabassum S, Al Enazi S, et al. Amelioration of levetiracetam-induced behavioral side effects by pyridoxine. A randomized double blind controlled study. Pediatr Neurol 2021;119:15-21. PubMed
- Gupta M, Gallante B, Bamberger JN, et al. Prospective randomized evaluation of idiopathic hyperoxaluria treatments. J Endourol 2021;35(12):1844-1851. PubMed
- Li H, Chen M, Liang S, et al. Excessive vitamin B6 during treatment is related to poor prognosis of patients with nasopharyngeal carcinoma: A U-shaped distribution suggests low dose supplement. Clin Nutr 2021;40(4):2293-2300. PubMed
- Tanigawa J, Nabatame S, Tominaga K, et al. High-dose pyridoxine treatment for inherited glycosylphosphatidylinositol deficiency. Brain Dev 2021;43(6):680-687. PubMed
- Committee on Practice Bulletins-Obstetrics. ACOG Practice Bulletin No. 189: Nausea And Vomiting Of Pregnancy. Obstet Gynecol. 2018;131(1):e15-e30. PubMed
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