Major interaction on record — check this product against your medications before combining. Based on 4 of 7 ingredients. Check your meds →
Dietary supplement

BP-One Ingredients & Drug Interactions

by Patient One 1 MediNutritionals

BP-One label
See full label image
Tablet Or Pill Category: Other Combinations
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking BP-One 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

The interaction bottom line Most serious interaction: Major

BP-One is a dietary supplement by Patient One 1 MediNutritionals with 7 active ingredients. Its ingredients are commonly taken for treating or preventing b12 deficiency, pernicious anemia, low energy and fatigue.Based on those ingredients, 1,051 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are RC-NOS Rutaecarpine extract, MegaNatural(TM) BP Grape seed extract, Vitamin B12. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against BP-One by Patient One 1 MediNutritionals

Ask about any prescription or over-the-counter medication and we check it for interactions with BP-One by Patient One 1 MediNutritionals — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of BP-One by Patient One 1 MediNutritionals

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.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 3 of its 7 active ingredients.
  • “Proprietary Blend” is a proprietary blend — the label gives one combined amount (1,635 mg) without saying how much of each component you get.

BP-One contains 7 active ingredients. Vitamin B12 supports energy and nerve function and is used to treat B12 deficiency.

Folate works with B12 in your body. Vitamin K-2 supports blood clotting and bone health.

The proprietary blend includes arginine alphaketoglutarate and AmealPeptide E lactotripeptides for cardiovascular support, along with MegaNatural BP grape seed extract and RC-NOS rutaecarpine extract (from evodia) — both traditionally used to support circulation and vascular health. The tablet also contains several inactive ingredients — dicalcium phosphate, stearic acid, L-leucine, croscarmellose sodium, silicon dioxide, and aqueous film coating — used as binders and fillers.

Does it work?

Not established
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use.

Why this rating?
  • The label markets this product for: Helps maintain normal blood pressure levels.
  • We looked for evidence on: Hypertension, Cardiovascular disease (CVD), Hypercholesterolemia, Atherosclerosis, Metabolic syndrome, Blood pressure regulation — and 2 related terms.
  • The closest evidence on file: Grape is rated "Insufficient Reliable Evidence To Rate" for Atherosclerosis (Natural Medicines).
  • Also on file: Grape is rated "Insufficient Reliable Evidence To Rate" for Cardiovascular disease (CVD), Hypercholesterolemia, Hypertension, Metabolic syndrome.
  • Also on file: Vitamin B12 is rated "Insufficient Reliable Evidence To Rate" for Atherosclerosis, Cardiovascular disease (CVD).

Vitamin B12 is effective for treating B12 deficiency and is likely effective for cyanide poisoning. It's possibly effective for canker sores and postherpetic neuralgia (nerve pain after shingles).

Vitamin K is effective for clotting disorders and possibly effective for osteoporosis. Grape seed extract is possibly effective for chronic venous insufficiency (sluggish circulation in the legs) but appears possibly ineffective for chemotherapy nausea, hay fever, and weight loss.

The effectiveness of arginine alphaketoglutarate, AmealPeptide E lactotripeptides, and evodia for blood pressure support is not established in the data we hold.

The evidence, ingredient by ingredient Vitamin B12 Grape Evodia Vitamin K

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 4 of the 4 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 4 of 4.
  • General safety write-ups exist for 4 of 4.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Vitamin B12 is generally well-tolerated and has no established upper limit because your body removes excess in urine. It's considered safe in pregnancy and during breastfeeding at recommended amounts.

Allergic reactions to B12 are rare; when they occur, they may resemble a rash or hives. Vitamin K is generally well-tolerated, though oral forms may cause diarrhea, nausea, or stomach upset in some people.

It's likely safe in pregnancy and lactation at normal amounts, though concentrated supplements require your doctor's approval. Grape seed extract is generally well-tolerated and appears safe in pregnancy and lactation, though concentrated supplements in pregnancy should be avoided due to limited data.

Common side effects include abdominal pain, diarrhea, dry mouth, headache, and joint pain; anaphylaxis is rare. Evodia has limited human safety data and should be used with caution — it's traditionally avoided in pregnancy (possibly unsafe) and insufficient data exist for breastfeeding.

Animal studies show it can prolong the QT interval (a heart rhythm measure), though effects in humans are unknown.

Side effects, ingredient by ingredient Vitamin B12 Grape Evodia Vitamin K

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 4 of the 4 matched ingredients can interact with medications — Grape, Vitamin B12, Vitamin K, Evodia.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; heart-rhythm medications.
  • For scale: 1,052 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check your medications before taking this product if you're on warfarin or other blood thinners (Major interaction with vitamin K-2). At Moderate severity, several drug categories need review: cyclosporine, theophylline, midazolam, antiplatelet or anticoagulant drugs, and medications affected by liver enzyme changes (CYP1A2, CYP2D6, CYP2E1, and CYP3A4 substrates).

Metformin users should be aware of a Minor interaction with B12 — your doctor may want to monitor your B12 levels. Use the medication search tool below to check your exact drugs.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no established evidence rating for its marketed use. Major medication interactions have been identified, and safety information is well characterized.

BP-One is designed for blood pressure and cardiovascular support and contains B vitamins and herbal ingredients used for circulation. If you take warfarin, don't start this product without checking with your doctor first — vitamin K-2 directly opposes its effect.

Anyone on cyclosporine, theophylline, or certain heart medications should review their medications with a pharmacist before using this. Talk to your pharmacist or doctor if you're pregnant, breastfeeding, or take multiple prescription drugs.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 4 of 7 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jul 24, 2015.

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

At a glance

General information

Key facts about BP-One, straight from the product label.

Brand Patient One 1 MediNutritionals
Barcode (UPC) 853959004403
Net contents 60 Tablet(s)
Market status Off market
Date entered into DSLD Jul 24, 2015
DSLD ID 47801
Product type Other Combinations
Supplement form Tablet Or Pill
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegetarian, Adult (18 - 50 Years), Gluten Free, Sugar Free
From the label
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 BP-One by Patient One 1 MediNutritionals, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
2 Tablet(s)
Maximum serving Sizes:
2 Tablet(s)
Servings per container
30
UPC/BARCODE
853959004403
IngredientAmount% DV
Vitamin B12250 mcg4167%
Folate800 mcg200%
Proprietary Blend1635 mg--
natural Vitamin K-230 mcg38%
Arginine Alphaketoglutarate0 NP--
AmealPeptide E Lactotripeptides0 NP--
MegaNatural(TM) BP Grape seed extract0 NP--
RC-NOS Rutaecarpine extract0 NP--

Other ingredients: Dicalcium Phosphate, Stearic Acid, L-Leucine, Croscarmellose Sodium, Silicon Dioxide, Aqueous Film Coating

Tap any ingredient to jump to its full detail below.

Label statements
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.
General Statements

Helps maintain blood pressure levels already within normal range

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

DOCTOR RECOMMENDED DOCTOR APPROVED

{Recycle}

Formulation

Gluten Free

Vegetarian

Free of: Egg, fish, peanut, tree nuts, wheat, yeast, corn, rice, sugar, and artificial sweeteners, flavors, colors, and preservatives.

Formula

Contains: Milk and trace amounts of soybeans.

Precautions

Contains: Milk and trace amounts of soybeans.

Caution: If you are pregnant, nursing, or taking any medications, consult your doctor before use.

Discontinue use if any adverse reactions occur.

Tamper Resistant: Do not use if seal under cap is broken or missing.

Keep out of reach of children.

Suggested/Recommended/Usage/Directions

Suggested Use: Take 2 tablets once daily as a dietary supplement, or as directed by a qualified health care professional.

FDA Disclaimer Statement

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

Storage

Store in a dry place and avoid excessive heat.

General

PROD. NO P1003-60

Brand IP Statement(s)

AmealPeptide(R) and AmealPeptide(R) logo are registered trademarks of Calpis Co., Ltd. MegaNatural(R) BP is a trademark of Polyphenolics, a division of Constellation Wines U.S., Inc. RC-NOS(TM) is a trademark of Integrity Nutraceuticals. VitaMK7(TM) is a trademark of Gnosis S.p.A. distributed by AHD International, LLC.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

BP-One by Patient One 1 MediNutritionals label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

BP-One label

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)
What’s inside

The Ingredients in BP-One by Patient One 1 MediNutritionals

These are the 7 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Tablet(s) Dosage formTablet Or Pill Servings per container30 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Vitamin B12

Interacts with
20 drugs
250 mcg per serving Form: Methylcobalamin

Vitamin B12 (cobalamin) is an essential nutrient your body needs to make red blood cells, keep nerves healthy, and support DNA. Supplements are very h...

Vitamin B12 monograph & interactions

Folate

800 mcg per serving Form: Folic Acid

Proprietary Blend

1635 mg per serving

Natural Vitamin K-2

Interacts with
2 drugs
30 mcg per serving Form: VitaMK7 Menaquinone-7

Vitamin K is an essential nutrient your body needs for normal blood clotting and to support healthy bones. Most people get enough from food, but suppl...

Natural Vitamin K-2 monograph & interactions

Other (inactive) ingredients: Dicalcium Phosphate, Stearic Acid, L-Leucine, Croscarmellose Sodium, Silicon Dioxide, Aqueous Film Coating. These complete the product’s ingredient list but are not active constituents.

Interaction report

BP-One by Patient One 1 MediNutritionals Drug Interactions

Want to check YOUR meds against BP-One?

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 checker
1,051Drugs
2 Major 1,005 Moderate 44 Minor

Ingredients driving the most interactions

RC-NOS Rutaecarpine extract 950
MegaNatural(TM) BP Grape seed extract 910
Vitamin B12 20
natural Vitamin K-2 2

Individual Drug Interactions

The ingredients in BP-One interact with 1,051 drugs. Click any drug to see the details.

4 of the 7 ingredients in BP-One interact with drugs. Each result below shows which ingredient is responsible. RC-NOS Rutaecarpine extract MegaNatural(TM) BP Grape seed extract Vitamin B12 natural Vitamin K-2

Each ingredient & the kinds of drugs it affects

For each ingredient in BP-One 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.

RC-NOS Rutaecarpine extract11 drug types · 950 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, taking evodia with antiplatelet or anticoagulant drugs might increase the risk of bruising and bleeding.
In vitro and animal studies show that rutaecarpine, a constituent of evodia, inhibits platelet aggregation.

Likelihood Possible Evidence D
Caffeine

Theoretically, evodia might decrease the levels and clinical effects of caffeine.
In animal models, evodia extract decreases caffeine levels by up to 71%. Evodia extract induces hepatic cytochrome P450 1A2 (CYP1A2) enzyme, of which caffeine is a substrate.

Likelihood Probable Evidence D
Chlorzoxazone (Parafon Forte, Paraflex)

Theoretically, evodia might decrease the levels and clinical effects of chlorzoxazone.
Animal research shows that administration of rutaecarpine, a constituent of evodia, with chlorzoxazone reduces the area under the curve (AUC) of chlorzoxazone by 84% and increases its clearance by 646%. This interaction is likely due to induction of cytochrome P450 2E1 (CYP2E1) by rutaecarpine .

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Inhibitors

Theoretically, drugs that inhibit CYP1A2 might increase the levels and clinical effects of evodia.
The evodia constituent rutaecarpine is metabolized by CYP1A2.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Evodia might reduce the levels and clinical effects of CYP1A2 substrates through induction of CYP1A2.
Evodia extract and the evodia constituent rutaecarpine induce hepatic CYP1A2 enzyme activity. Evodia decreases levels of theophylline and caffeine, CYP1A2 substrates, by about 70% in animal models.

Likelihood Probable Evidence D
Cytochrome P450 2E1 (Cyp2E1) Substrates

Theoretically, evodia might reduce the levels and clinical effects of CYP2E1 substrates through induction of CYP2E1.
Animal research suggests that rutaecarpine, a constituent of evodia, induces CYP2E1 activity. In rats, rutaecarpine increases markers of CYP2E1 activity, and administration of rutaecarpine with chlorzoxazone, a known CYP2E1 substrate, reduces the area under the curve (AUC) of chlorzoxazone by 84% and increases its clearance by 646%.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Inducers

Theoretically, taking CYP3A4 inducers might decrease the levels and clinical effects of evodia.
Animal research shows that concomitant administration of dexamethasone, a known CYP3A4 inducer, with the alkaloid constituents of evodia significantly reduces the area under the curve (AUC), maximum concentration (Cmax), and half-life of these constituents.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Inhibitors

Theoretically, CYP3A4 inhibitors might increase the levels and clinical effects of evodia.
Animal research shows that concomitant administration of ketoconazole, a known CYP3A4 inhibitor, with the alkaloid constituents of evodia significantly increases the area under the curve (AUC), maximum concentration (Cmax), and half-life of these constituents.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, evodia might increase the levels and clinical effects of CYP3A4 substrates.
In vitro research shows that evodia extract inhibits hepatic CYP3A4. This effect has not been reported in humans.

Likelihood Possible Evidence D
Qt Interval-Prolonging Drugs

Theoretically, evodia might have an additive effect with drugs that prolong the QT interval, potentially increasing the risk of ventricular arrhythmias.
Evodia has demonstrated dose-dependent activity as a proarrhythmic agent in animal and in vitro studies. Evodia infusion in animals extends the action duration potential and induces prolongation of the QT interval and Torsade de pointes.

Likelihood Possible Evidence D
Theophylline

Theoretically, evodia might decrease the levels and clinical effects of theophylline.
The evodia constituent rutaecarpine decreases theophylline levels and half-life by about 70% in animal models. This constituent appears to induce hepatic cytochrome P450 1A2 (CYP1A2) enzyme activity, of which theophylline is a substrate. Rutaecarpine is the primary active constituent of evodia; however, it is not known if the whole crude extract of evodia also causes this interaction.

Likelihood Probable Evidence D
RC-NOS Rutaecarpine extract full monograph & interactions

MegaNatural(TM) BP Grape seed extract9 drug types · 910 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, grape extracts may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro evidence suggests that grape extracts might decrease platelet aggregation.

Likelihood Possible Evidence D
Cyclosporine (Neoral, Sandimmune)

Ingesting grape juice with cyclosporine can reduce cyclosporine absorption.
A small pharmacokinetic study in healthy young adults shows that intake of purple grape juice 200 mL along with cyclosporine can decrease the absorption of cyclosporine by up to 30% when compared with water. Separate doses of grape juice and cyclosporine by at least 2 hours to avoid this interaction.

Likelihood Possible Evidence B
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, grape juice might reduce the levels of CYP1A2 substrates.
A small pharmacokinetic study in healthy adults shows that ingestion of 200 mL of grape juice decreases phenacetin plasma levels. This is thought to be due to induction of CYP1A2.

Likelihood Possible Evidence B
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, grape seed extract may increase the levels of CYP2D6 substrates.
In vitro evidence suggests that grape seed extract might inhibit CYP2D6 enzymes. However, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2E1 (Cyp2E1) Substrates

Theoretically, grape seed extract might increase the levels of CYP2E1 substrates.
In vitro and animal research suggests that grape seed proanthocyanidin extract inhibits CYP2E1 enzymes. However, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
In vitro evidence suggests that grape seed extract might inhibit CYP3A4 enzymes. However, evidence from animal research shows that grape seed extract may induce CYP3A4 in the liver. So far, these interactions have not been reported in humans.

Likelihood Possible Evidence D
Midazolam (Versed)

Theoretically, long-term intake of grape seed extract might decrease the effects of midazolam.
Animal research shows that subchronic ingestions of grape seed extract can increase the elimination of intravenous midazolam by increasing hepatic CYP3A4 activity. Single doses of grape seed extract do not appear to affect midazolam elimination.

Likelihood Possible Evidence D
Phenacetin

Grape juice might decrease phenacetin absorption.
A small pharmacokinetic study in healthy adults shows that ingestion of 200 mL of grape juice decreases phenacetin plasma levels. This is thought to be due to induction of cytochrome P450 1A2 (CYP1A2).

Likelihood Possible Evidence B
Cytochrome P450 2C9 (Cyp2C9) Substrates

It is unclear if grape juice or grape seed extract inhibits CYP2C9; research is conflicting.
In vitro evidence shows that grape seed extract or grape juice might inhibit CYP2C9 enzymes. However, a small pharmacokinetic study in healthy adults shows that drinking 8 ounces of grape juice once does not affect the clearance of flurbiprofen, a probe-drug for CYP2C9 metabolism. The effects of continued grape juice consumption are unclear.

Likelihood Unlikely Evidence D
MegaNatural(TM) BP Grape seed extract full monograph & interactions

Vitamin B121 drug type · 20 drugs

Metformin (Glucophage)

Metformin, a common medication used to manage type 2 diabetes, has been associated with lower vitamin B12 levels in some individuals. Prolonged use of metformin can interfere with the absorption of B12 in the digestive system, potentially leading to a deficiency in this essential vitamin.

Likelihood Possible Evidence A
Vitamin B12 full monograph & interactions

natural Vitamin K-21 drug type · 2 drugs

Warfarin (Coumadin)

Vitamin K can antagonize and reverse the therapeutic effects of warfarin.
Vitamin K antagonizes the effects of warfarin. Excessive vitamin K intake, either from supplements or from changes in the diet, can reduce the anticoagulant effect of warfarin.

Likelihood Likely Evidence C
natural Vitamin K-2 full monograph & interactions
The maker

Brand information

Manufacturer and brand details for BP-One, from the product label.

Patient One 1 MediNutritionals

See all Patient One 1 MediNutritionals products
Name
MediNutritionals Research LLC
Street Address
120 Broadhollow Rd, Ste 2
City
Farmingdale
State
NY
ZipCode
11735
Pharmacist Counseling Corner

BP-One by Patient One 1 MediNutritionals: Common Questions

Does BP-One by Patient One 1 MediNutritionals interact with any medications?
Yes. Based on its ingredients, BP-One has a known interaction with 1,051 medications, including 2 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
BP-One contains 7 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is this safe to take if I'm pregnant?
Vitamin B12 and vitamin K are considered safe in pregnancy at normal amounts. Grape seed extract appears safe, though concentrated supplements should be avoided. However, evodia extract (RC-NOS) is traditionally avoided in pregnancy — the safety data advises against it. Talk with your doctor or pharmacist about this product before starting, especially given the evodia content.
What's the proprietary blend, and why won't you tell me the amounts?
The proprietary blend contains arginine alphaketoglutarate and AmealPeptide E lactotripeptides — manufacturers often keep the individual amounts secret to protect their formula. We list the components so you know what's in there, but exact doses aren't disclosed on the label.
Can this actually lower blood pressure?
The product contains ingredients traditionally used for cardiovascular and circulation support — vitamin K, grape seed extract, and evodia are all used for vascular health. However, we don't have effectiveness data in our records for blood pressure specifically. If you're hoping to manage high blood pressure, talk with your doctor about whether this product is appropriate for you.
I'm on metformin for diabetes — is this okay?
Metformin can lower vitamin B12 levels over time, and this product contains B12. There's a Minor interaction documented. Your doctor may want to monitor your B12 levels if you take both, or they might want you to take them at different times. Check with them before starting.
What's arginine alphaketoglutarate, and what does it do?
Arginine alphaketoglutarate is a compound made from the amino acid arginine, sometimes used to support circulation and exercise performance. We don't hold specific effectiveness data for it in this product, so talk with your pharmacist if you want more detail on what it's intended to do.
Why is there so much warning about grape seed and liver enzymes?
Your liver uses special enzymes (like CYP3A4 and CYP2D6) to break down many medications. Grape seed extract can affect how these enzymes work, which means some drugs may stay in your body longer or be cleared faster — changing how well they work. That's why it's important to check your specific medications before starting.

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.

BP-One label
Go deeper

The Full Monographs Behind BP-One’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Vitamin B12

Interacts with 20 drugs

Vitamin B12 (cobalamin) is an essential nutrient your body needs to make red blood cells, keep nerves healthy, and support DNA. Supplements are very helpful for people who are deficient — su...

Read the full Vitamin B12 monograph → Herb & supplement monograph

Grape

Interacts with 910 drugs

Grapes and grape products like grape seed extract contain antioxidant compounds such as resveratrol and proanthocyanidins that may support heart and blood vessel health. While the food is he...

Read the full Grape monograph → Herb & supplement monograph

Evodia

Interacts with 950 drugs

Evodia is a fruit used in traditional Chinese medicine, most often for digestive complaints, headaches, and menstrual pain. Human evidence for these uses is very limited, and it is mostly st...

Read the full Evodia monograph → Herb & supplement monograph

Vitamin K

Interacts with 2 drugs

Vitamin K is an essential nutrient your body needs for normal blood clotting and to support healthy bones. Most people get enough from food, but supplements are sometimes used for deficiency...

Read the full Vitamin K monograph →
Sources

Sources & How We Checked

BP-One'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.

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 88 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 B12 30 references
  1. 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
  2. Hartman TJ, Woodson K, Stolzenberg-Solomon R, et al. Association of the B-vitamins pyridoxal 5'-phosphate (B6), B12, and folate with lung cancer risk in older men. Am J Epidemiol 2001;153:688-94.. DOI
  3. 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..
  4. Lange H, Suryapranata H, De Luca G, et al. Folate therapy and in-stent restenosis after coronary stenting. N Engl J Med 2004;350:2673-81. PubMed
  5. Collin, S. M., Metcalfe, C., Refsum, H., Lewis, S. J., Zuccolo, L., Smith, G. D., Chen, L., Harris, R., Davis, M., Marsden, G., Johnston, C., Lane, J. A., Ebbing, M., Bonaa, K. H., Nygard, O., Ueland, P. M., Grau, M. V., Baron, J. A., Donovan, J. L., Nea
  6. Geissbuhler, P., Mermillod, B., and Rapin, C. H. Elevated serum vitamin B12 levels associated with CRP as a predictive factor of mortality in palliative care cancer patients: a prospective study over five years. J.Pain Symptom.Manage. 2000;20(2):93-103. PubMed
  7. Salles, N., Herrmann, F., Sakbani, K., Rapin, C. H., and Sieber, C. High vitamin B12 level: a strong predictor of mortality in elderly inpatients. J Am Geriatr.Soc 2005;53(5):917-918.
  8. Looker, H. C., Fagot-Campagna, A., Gunter, E. W., Pfeiffer, C. M., Sievers, M. L., Bennett, P. H., Nelson, R. G., Hanson, R. L., and Knowler, W. C. Homocysteine and vitamin B(12) concentrations and mortality rates in type 2 diabetes. Diabetes Metab Res R
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  15. Omboni, E., Checchini, M., and Longoni, F. [Hypopotassemia and megaloblastic anemia. Presentation of a case]. Minerva Med 8-31-1987;78(16):1255-1257.
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Vitamin K 11 references
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  2. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
  3. Crowther MA, Ageno W, Garcia D, et al. Oral vitamin K versus placebo to correct excessive anticoagulation in patients receiving warfarin: a randomized trial. Ann Intern Med. 2009;150(5):293-300. PubMed
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  6. Riegert-Johnson, D. L. and Volcheck, G. W. The incidence of anaphylaxis following intravenous phytonadione (vitamin K1): a 5-year retrospective review. Ann.Allergy Asthma Immunol. 2002;89(4):400-406. PubMed
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  8. Dentali, F., Ageno, W., and Crowther, M. Treatment of coumarin-associated coagulopathy: a systematic review and proposed treatment algorithms. J.Thromb.Haemost. 2006;4(9):1853-1863. PubMed
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  10. Huang ZB, Wan SL, Lu YJ, Ning L, Liu C, Fan SW. Does vitamin K2 play a role in the prevention and treatment of osteoporosis for postmenopausal women: a meta-analysis of randomized controlled trials. Osteoporos Int. 2015;26(3):1175-86. PubMed
  11. Hunnali CR, Devi U, Kitchanan S, Sethuraman G. Three Different Regimens for Vitamin K Birth Prophylaxis in Infants Born Preterm: A Randomized Clinical Trial. J Pediatr 2023;255:98-104. PubMed

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Grape 34 references
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  2. Xiao Dong S, Zhi Ping Z, Zhong Xiao W, et al. Possible enhancement of the first-pass metabolism of phenacetin by ingestion of grape juice in Chinese subjects. Br J Clin Pharmacol 1999;48:638-40. PubMed
  3. Vaswani SK, Hamilton RG, Carey RN, et al. Anaphylaxis recurrent urticaria and angioedema from grape hypersensitivity. J Allergy Clin Immunol 1998;101:S31.
  4. Chevallier A. The Encyclopedia of Medicinal Plants. London, UK: Dorling Kindersley, Ltd., 1996.
  5. Bernstein DI, Bernstein CK, Deng C, et al. Evaluation of the clinical efficacy and safety of grapeseed extract in the treatment of fall seasonal allergic rhinitis: a pilot study. Ann Allergy Asthma Immunol 2002;88:272-8.. PubMed
  6. Greenblatt DJ, von Moltke LL, Perloff ES, et al. Interaction of flurbiprofen with cranberry juice, grape juice, tea, and fluconazole: in vitro and clinical studies. Clin Pharmacol Ther 2006;79:125-33. PubMed
  7. Ward NC, Hodgson JM, Croft KD, et al. The combination of vitamin C and grape-seed polyphenols increases blood pressure: a randomized, double-blind, placebo-controlled trial. J Hypertens 2005;23:427-34.. PubMed
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  9. O'Byrne, D. J., Devaraj, S., Grundy, S. M., and Jialal, I. Comparison of the antioxidant effects of Concord grape juice flavonoids alpha-tocopherol on markers of oxidative stress in healthy adults. Am J Clin.Nutr. 2002;76(6):1367-1374.
  10. Schaefer, E., Peil, H., Ambrosetti, L., and Petrini, O. Oedema protective properties of the red vine leaf extract AS 195 (Folia vitis viniferae) in the treatment of chronic venous insufficiency. A 6-week observational clinical trial. Arzneimittelforschun PubMed
  11. Nishikawa, M., Ariyoshi, N., Kotani, A., Ishii, I., Nakamura, H., Nakasa, H., Ida, M., Nakamura, H., Kimura, N., Kimura, M., Hasegawa, A., Kusu, F., Ohmori, S., Nakazawa, K., and Kitada, M. Effects of continuous ingestion of green tea or grape seed extra
  12. de Lange, D. W., Scholman, W. L., Kraaijenhagen, R. J., Akkerman, J. W., and van de Wiel, A. Alcohol and polyphenolic grape extract inhibit platelet adhesion in flowing blood. Eur.J Clin.Invest 2004;34(12):818-824. PubMed
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  14. Gamsky, T. E., McCurdy, S. A., Samuels, S. J., and Schenker, M. B. Reduced FVC among California grape workers. Am Rev.Respir.Dis 1992;145(2 Pt 1):257-262. PubMed
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  16. Etheridge, A. S., Black, S. R., Patel, P. R., So, J., and Mathews, J. M. An in vitro evaluation of cytochrome P450 inhibition and P-glycoprotein interaction with goldenseal, Ginkgo biloba, grape seed, milk thistle, and ginseng extracts and their constitu
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  18. Ingersoll, G. L., Wasilewski, A., Haller, M., Pandya, K., Bennett, J., He, H., Hoffmire, C., and Berry, C. Effect of concord grape juice on chemotherapy-induced nausea and vomiting: results of a pilot study. Oncol.Nurs.Forum 2010;37(2):213-221. PubMed
  19. Oliveira-Freitas, V. L., Dalla, Costa T., Manfro, R. C., Cruz, L. B., and Schwartsmann, G. Influence of purple grape juice in cyclosporine bioavailability. J Ren Nutr. 2010;20(5):309-313. PubMed
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  21. Dohadwala, M. M., Hamburg, N. M., Holbrook, M., Kim, B. H., Duess, M. A., Levit, A., Titas, M., Chung, W. B., Vincent, F. B., Caiano, T. L., Frame, A. A., Keaney, J. F., Jr., and Vita, J. A. Effects of Concord grape juice on ambulatory blood pressure in
  22. Rabe, E., Stucker, M., Esperester, A., Schafer, E., and Ottillinger, B. Efficacy and tolerability of a red-vine-leaf extract in patients suffering from chronic venous insufficiency--results of a double-blind placebo-controlled study. Eur.J Vasc.Endovasc. PubMed
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  24. McCurdy, S. A., Wiggins, P., Schenker, M. B., Munn, S., Shaieb, A. M., Weinbaum, Z., Goldsmith, D., McGillis, S. T., Berman, B., and Samuels, S. Assessing dermatitis in epidemiologic studies: occupational skin disease among California grape and tomato ha
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  26. Yamasaki, R., Dekio, S., and Jidoi, J. Contact dermatitis from grape bud. Contact Dermatitis 1985;12(4):226-227. PubMed
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  29. Marguerie, C. and Drouet, M. [Occupational eosinophilic lung in a grape grower: role of sulfites]. Allerg.Immunol.(Paris) 1995;27(5):163-167.
  30. Brito, FF., Martinez, A., Palacios, R., Mur, P., Gomez, E., Galindo, P. A., Borja, J., and Martinez, J. Rhinoconjunctivitis and asthma caused by vine pollen: a case report. J Allergy Clin Immunol 1999;103(2 Pt 1):262-266. PubMed
  31. Ras RT, Zock PL, Zebregs YE, et al. Effect of polyphenol-rich grape seed extract on ambulatory blood pressure in subjects with pre- and stage I hypertension. Br J Nutr 2013;110(12):2234-41. PubMed
  32. Berry AC, Nakshabendi R, Abidali H, et al. Adverse effects of grape seed extract supplement: A clinical case and long-term follow-up. J Diet Suppl. 2016;13(2):232-5. PubMed
  33. Martínez-Maqueda D, Zapatera B, Gallego-Narbón A, Vaquero MP, Saura-Calixto F, Pérez-Jiménez J. A 6-week supplementation with grape pomace to subjects at cardiometabolic risk ameliorates insulin sensitivity, without affecting other metabolic syndrome mark
  34. Moon SW, Shin YU, Cho H, Bae SH, Kim HK; and for the Mogen Study Group. Effect of grape seed proanthocyanidin extract on hard exudates in patients with non-proliferative diabetic retinopathy. Medicine (Baltimore) 2019;98(21):e15515. PubMed

See these in context on the Grape monograph →

Evodia 13 references
  1. Sheu JR, Kan YC, Hung WC, et al. The antiplatelet activity of rutaecarpine, an alkaloid isolated from Evodia rutaecarpa, is mediated through inhibition of phospholipase C. Thromb Res 1998;92:53-64. PubMed
  2. Sheu JR, Hung WC, Lee YM, Yen MH. Mechanism of inhibition of platelet aggregation by rutaecarpine, an alkaloid isolated from Evodia rutaecarpa. Eur J Pharmacol 1996;318:469-75. PubMed
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  4. King CL, Kong YC, Wong NS, et al. Uterotonic effect of Evodia rutaecarpa alkaloids. J Nat Prod 1980;43:577-82. PubMed
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  6. Iwata H, Tezuka Y, Kadota S, et al. Mechanism-based inactivation of human liver microsomal CYP3A4 by rutaecarpine and limonin from Evodia fruit extract. Drug Metab Pharmacokinet 2005;20:34-45. PubMed
  7. Sheu JR, Hung WC, Wu CH, et al. Antithrombotic effect of rutaecarpine, an alkaloid isolated from Evodia rutaecarpa, on platelet plug formation in in vivo experiments. Br J Haematol 2000;110:110-5.
  8. Tsai TH, Chang CH, Lin LC. Effects of Evodia rutaecarpa and rutaecarpine on the pharmacokinetics of caffeine in rats. Planta Med 2005;71:640-5.
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  10. Baburin I, Varkvisser R, Schramm A, et al. Dehydroevodiamine and hortiamine, alkaloids from the traditional Chinese herbal drug Evodia rutaecarpa, are IKr blockers with proarrhythmic effects in vitro and in vivo. Pharmacol Res. 2018 May;131:150-163. DOI
  11. Zhang W, Guo J, Wang D, et al. Effect of CYP3A inducer/inhibitor on pharmacokinetics of five alkaloids in Evodiae Fructus. Chem Biol Interact 2020;327:109146. PubMed
  12. Huang CJ, Huang WC, Lin WT, et al. Rutaecarpine, an alkaloid from Evodia rutaecarpa, can prevent platelet activation in humans and reduce microvascular thrombosis in mice: crucial role of the PI3K/Akt/GSK3ß signal axis through a cyclic nucleotides/VASP-in
  13. Bista SR, Lee SK, Thapa D, et al. Effects of oral rutaecarpine on the pharmacokinetics of intravenous chlorzoxazone in rats. Toxicol Res 2008;24(3):195-9. PubMed

See these in context on the Evodia monograph →

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