Pyridoxal-5-Phosphate Powder 50 mg Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Pyridoxal-5-Phosphate Powder 50 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
Pyridoxal-5-Phosphate Powder 50 mg is a dietary supplement by BulkSupplements.com 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 Pyridoxal 5-Phosphate. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Pyridoxal-5-Phosphate Powder 50 mg by BulkSupplements.com
Ask about any prescription or over-the-counter medication and we check it for interactions with Pyridoxal-5-Phosphate Powder 50 mg by BulkSupplements.com — 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 Pyridoxal-5-Phosphate Powder 50 mg by BulkSupplements.com
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 powder contains one active ingredient: pyridoxal 5-phosphate, a form of vitamin B6. It's the active form your body uses directly, without needing to convert it first.
There are no inactive ingredients listed for this product.
Does it work?
Strong evidence
Vitamin B6 is effective for treating sideroblastic anemia (a blood disorder) and for correcting B6 deficiency itself. It's also effective for pyridoxine-dependent epilepsy, a rare genetic condition.
The evidence is likely effective for high homocysteine levels (an amino acid linked to heart health) and possibly effective for pregnancy-related nausea and vomiting, though use in pregnancy requires a doctor's guidance.
How safe is it?
Well-documented data
Vitamin B6 is generally well tolerated at doses under 100 mg daily. Common side effects at higher doses include nausea, headache, heartburn, and loss of appetite.
The main concern with high doses — especially 1000 mg daily or more, or total lifetime doses of 1000 grams or higher — is nerve damage (sensory neuropathy), though this can occur at lower doses too depending on how long you take it. This product contains 50 mg per serving, which is within the tolerated range, but stacking multiple B6 sources or taking it long-term at high doses isn't advisable without medical oversight.
We don't have pregnancy or breastfeeding safety data on file for this ingredient. If you're pregnant or breastfeeding, talk with your doctor or pharmacist before starting — while vitamin B6 is sometimes used for morning sickness, it should only be used under clinical guidance in pregnancy.
Meds to double-check
Moderate interaction found
Before taking this product, check with your pharmacist if you use seizure medications (phenytoin or phenobarbital) — high-dose B6 can reduce how well they work. Also double-check if you take antihypertensive drugs (blood pressure medications), amiodarone (a heart rhythm medication), or levodopa for Parkinson's disease without carbidopa.
No interactions are documented for other medications we hold data on.
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.
This B6 supplement is a straightforward choice if you have a diagnosed B6 deficiency, sideroblastic anemia, or a genetic condition requiring it. If you take seizure medications, blood pressure drugs, amiodarone, or levodopa without carbidopa, you'll want to check with your pharmacist first.
At 50 mg per dose, it's well within the safe daily range; just don't layer on other B6 sources without asking.
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 Apr 24, 2025.
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 Pyridoxal-5-Phosphate Powder 50 mg, straight from the product label.
| Brand | BulkSupplements.com |
|---|---|
| Barcode (UPC) | 849720025418 |
| Net contents | 250 Gram(s); 8.8 Ounce(s) |
| Market status | On market |
| Date entered into DSLD | Apr 24, 2025 |
| DSLD ID | 330391 |
| Product type | Vitamin |
| Supplement form | Powder |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Dairy 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 Pyridoxal-5-Phosphate Powder 50 mg by BulkSupplements.com, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Pyridoxal 5-Phosphate | 50 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.
Brand IP Statement(s)
BulkSupplements.com Clean & pure bulk supplements
Formula
P5P Pyridoxal-5-Phosphate Powder 50 mg per serving
Formulation
Free of: Added sugar, soy, dairy, yeast, gluten, additives
Suggested/Recommended/Usage/Directions
Suggested use: As a dietary supplement, take 50 mg once daily, or as directed by a physician. Individual needs may vary.
General Statements
Use an accurate milligram scale.
New
Storage
Contents are sold by weight, not volume. Settling may occur. Store in a dry, cool place
FDA Disclaimer Statement
Warning: This product is not intended to diagnose, treat, cure, or prevent any disease.
Precautions
Always consult a physician before taking any dietary supplement.
Keep out of reach of children.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Pyridoxal-5-Phosphate Powder 50 mg by BulkSupplements.com 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 Pyridoxal-5-Phosphate Powder 50 mg by BulkSupplements.com
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size50 Milligram(s) Dosage formPowder Servings per container5000 Amounts shown are per serving.
Pyridoxal 5-Phosphate
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...
Pyridoxal 5-Phosphate monograph & interactionsPyridoxal-5-Phosphate Powder 50 mg by BulkSupplements.com Drug Interactions
HelloPharmacist Interaction Report
Pyridoxal-5-Phosphate Powder by BulkSupplements.com contains one active ingredient — vitamin B6 — which has documented interactions with a number of medications.
The most serious concern is with seizure medications: high doses of vitamin B6 can reduce how well phenytoin (Dilantin) and phenobarbital (Luminal) work in your body, possibly by speeding up how your liver breaks them down. If you take either of these, avoid high doses of this supplement.
Read the full breakdown — every affected drug type, severity by severity
Vitamin B6 also has moderate interactions with blood pressure medications (antihypertensive drugs) — it may add to their effects and lower your blood pressure further — and with amiodarone (Cordarone), a heart rhythm drug, where it might worsen sun sensitivity. There's also a minor interaction with levodopa (used for Parkinson's), though this doesn't apply if you take it with carbidopa.
Almogether, these interactions span 208 individual medications. Before you start this product, run your exact prescriptions through the medication checker on this page to see if any apply to you.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 mg interact with 210 drugs. Click any drug to see the details.
1 of the 1 ingredient in Pyridoxal-5-Phosphate Powder 50 mg interact with drugs. Each result below shows which ingredient is responsible. Pyridoxal 5-Phosphate
AcebutololRhotral, Sectral
How Acebutolol interacts with Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 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.
Pyridoxal 5-Phosphate
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 Pyridoxal-5-Phosphate Powder 50 mg, from the product label.
BulkSupplements.com
See all BulkSupplements.com products- Name
- BulkSupplements.com
- Street Address
- 7511 Eastgate Rd
- City
- Henderson
- State
- NV
- ZipCode
- 89011
- Web Address
- BulkSupplements.com
Pyridoxal-5-Phosphate Powder 50 mg by BulkSupplements.com: Common Questions
Does Pyridoxal-5-Phosphate Powder 50 mg by BulkSupplements.com interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is 50 mg per serving a safe dose?
Can I use this for morning sickness during pregnancy?
What is pyridoxal 5-phosphate, and how is it different from regular B6?
Will this help if I don't have a B6 deficiency?
Are there side effects at this dose?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Pyridoxal-5-Phosphate Powder 50 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 Pyridoxal-5-Phosphate Powder 50 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Pyridoxal-5-Phosphate Powder 50 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..
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