Interactions on record — worth a quick check against your medications. Based on 3 of 4 ingredients. Check your meds →
Dietary supplement

Biostress-B Ingredients & Drug Interactions

by Nutri-West

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

First and foremost: checking Biostress-B 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: Moderate

Biostress-B is a dietary supplement by Nutri-West with 4 active ingredients. Its ingredients are commonly taken for high cholesterol, digestive health and fiber, heart health support.Based on those ingredients, 275 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Wheat Germ, Thiamine Pyrophosphate. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Biostress-B by Nutri-West

Ask about any prescription or over-the-counter medication and we check it for interactions with Biostress-B by Nutri-West — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Biostress-B by Nutri-West

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 12, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 4 of its 4 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Biostress-B contains four active ingredients. Rice Bran is a grain byproduct high in fiber and phytonutrients.

Thiamine Pyrophosphate is a form of vitamin B1, essential for energy metabolism and nerve function. Wheat Germ is the nutrient-dense core of wheat kernels.

Primary Yeast is included, though our data on it is limited. The tablet also contains inactive ingredients — DiCalcium Phosphate, Wood Cellulose, Microcrystalline Cellulose, Magnesium Stearate, and Stearic Acid — which are binders, fillers, and capsule materials used to hold the tablet together.

Does it work?

Strong evidence
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

This product doesn't appear to be marketed for a specific use, so we graded its ingredients' overall clinical evidence instead.

Strong

Strong clinical evidence supports its ingredients for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredients' overall clinical evidence instead.
  • On file: Thiamine deficiency — rated "Effective" (Thiamine) (Natural Medicines).
  • On file: Wernicke-Korsakoff syndrome (WKS) — rated "Effective" (Thiamine) (Natural Medicines).
  • On file: Dyslipidemia — rated "Possibly Effective" (Rice Bran) (Natural Medicines).
  • On file: Dysmenorrhea — rated "Possibly Effective" (Thiamine) (Natural Medicines).

Rice Bran shows possibly effective evidence for managing high cholesterol and related blood-fat problems (dyslipidemia), though it was rated possibly ineffective for colorectal cancer. The evidence for hair loss (alopecia areata) is insufficient to rate.

Thiamine is effective for treating thiamine deficiency and Wernicke-Korsakoff syndrome (a serious neurological condition from B1 lack). It's possibly effective for period pain (dysmenorrhea), but possibly ineffective as a mosquito repellent or for heart failure.

For the other ingredients, the evidence in our data isn't established — the facts don't show effectiveness ratings for Primary Yeast, and Wheat Germ's evidence for the uses listed is insufficient to rate.

The evidence, ingredient by ingredient Rice Bran Thiamine Wheatgrass

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 3 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Rice Bran is likely safe during pregnancy and lactation. Taken orally, it's generally well tolerated, though increasing bran intake can cause temporary belly discomfort, gas, and irregular bowel habits in the first few weeks.

Rarely, rice bran can trigger allergic reactions including hives, swelling, wheezing, itching, and cough; anaphylaxis has been reported. Thiamine is also likely safe in pregnancy and lactation when used at recommended amounts under your provider's guidance; it's very safe by mouth in normal doses, though parenteral (injected) forms rarely cause allergic reactions.

Wheat Germ is less clear on safety — the data states safety is not established, and raw wheat products may carry contamination risk. Since wheat is a major food allergen in the United States, it can cause allergic reactions in sensitive individuals.

Common side effects from wheat germ include nausea, loss of appetite, and constipation.

Side effects, ingredient by ingredient Rice Bran Thiamine Wheatgrass

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 2 of the 3 matched ingredients can interact with medications — Thiamine, Wheatgrass.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 275 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 starting Biostress-B, especially: antidiabetes drugs like insulin or metformin (Moderate — risk of low blood sugar), drugs metabolized by CYP1A2 (Moderate — may become less effective), and trimethoprim (Minor — may raise thiamine levels). If you're unsure whether your medications fit any of these categories, use the search tool below or ask your pharmacist.

Check your own medication Run your meds through the checker above

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.

Biostress-B may be worth considering if you're interested in B-vitamin support and managing cholesterol through a supplement. If you take diabetes medications, antidiabetic drugs, or drugs processed through the CYP1A2 pathway — or if you're allergic to wheat — check with your pharmacist first.

Anyone taking trimethoprim (Proloprim) should mention this product to their doctor. The wheat germ component means if you have a wheat allergy, this product isn't for you.

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

Assessment coverage: 3 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Nov 25, 2013.

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 Biostress-B, straight from the product label.

Brand Nutri-West
Net contents 250 Tablet(s)
Market status On market
Date entered into DSLD Nov 25, 2013
DSLD ID 27555
Product type Other Combinations
Supplement form Tablet Or Pill
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Dairy 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 Biostress-B by Nutri-West, 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:
1 Tablet(s)
Maximum serving Sizes:
1 Tablet(s)
Servings per container
250
IngredientAmount% DV
Rice Bran150 mg--
Primary Yeast150 mg--
Thiamine Pyrophosphate1 mg--
Wheat Germ5 mg--

Other ingredients: DiCalcium Phosphate, Wood Cellulose, Microcrystalline Cellulose, Magnesium Stearate, Stearic Acid

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

Product # 1353-A

FOR DISTRIBUTION BY HEALTH CARE PROFESSIONALS ONLY.

Manufactured under strict GMP and USP guidelines.

"When You Want The Best"

0132 MFG03/2010

Precautions

KEEP OUT OF REACH OF CHILDREN.

TAMPER RESISTANT OUTER SEAL - DO NOT USE IF BROKEN.

FDA Statement of Identity

Dietary Supplement

Formulation

Contains no starch, salt, sugar, corn, soy, milk, or preservatives.

Storage

Store in a cool, dry place.

Suggested/Recommended/Usage/Directions

Directions for use: One tablet with meals or as directed.

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

See for yourself

Biostress-B by Nutri-West label

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

Biostress-B 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 Biostress-B by Nutri-West

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container250 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.

Rice Bran

No known
interactions
150 mg per serving

Rice bran is the nutrient-rich outer layer of the rice grain and is a good source of fiber, healthy fats, and plant compounds. It is most studied for...

Rice Bran monograph & interactions

Primary Yeast

150 mg per serving

Thiamine Pyrophosphate

Interacts with
3 drugs
1 mg per serving

Thiamine (vitamin B1) is an essential nutrient your body needs to turn food into energy and to keep your nerves and heart healthy. Most people get eno...

Thiamine Pyrophosphate monograph & interactions

Wheat Germ

Interacts with
272 drugs
5 mg per serving Form: WHEAT

Wheatgrass is the young grass of the wheat plant, taken as a juice or powder, and is mainly used as a concentrated source of vitamins and plant nutrie...

Wheat Germ monograph & interactions

Other (inactive) ingredients: DiCalcium Phosphate, Wood Cellulose, Microcrystalline Cellulose, Magnesium Stearate, Stearic Acid. These complete the product’s ingredient list but are not active constituents.

Interaction report

Biostress-B by Nutri-West Drug Interactions

Want to check YOUR meds against Biostress-B?

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
275Drugs
272 Moderate 3 Minor

Ingredients driving the most interactions

Wheat Germ 272
Thiamine Pyrophosphate 3

Individual Drug Interactions

The ingredients in Biostress-B interact with 275 drugs. Click any drug to see the details.

2 of the 4 ingredients in Biostress-B interact with drugs. Each result below shows which ingredient is responsible. Wheat Germ Thiamine Pyrophosphate

Each ingredient & the kinds of drugs it affects

For each ingredient in Biostress-B 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.

Wheat Germ2 drug types · 272 drugs

Antidiabetes Drugs

Theoretically, taking wheatgrass with antidiabetes drugs might lower blood glucose levels and increase the risk of hypoglycemia.
Animal research shows that taking wheatgrass stimulates the release of insulin from beta-cells and lowers blood glucose.

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

Theoretically, wheatgrass might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that wheatgrass induces CYP1A2 enzymes.

Likelihood Possible Evidence D
Wheat Germ full monograph & interactions

Thiamine Pyrophosphate1 drug type · 3 drugs

Trimethoprim (Proloprim)

Trimethoprim might increase blood levels of thiamine.
In vitro, animal, and clinical research suggest that trimethoprim inhibits intestinal thiamine transporter ThTR-2, hepatic transporter OCT1, and renal transporters OCT2, MATE1, and MATE2, resulting in paradoxically increased thiamine plasma concentrations.

Likelihood Probable Evidence B
Thiamine Pyrophosphate full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Biostress-B, from the product label.

Nutri-West

See all Nutri-West products
Name
Nutri-West
City
Douglas
State
Wy
ZipCode
82633
Pharmacist Counseling Corner

Biostress-B by Nutri-West: Common Questions

Does Biostress-B by Nutri-West interact with any medications?
Yes. Based on its ingredients, Biostress-B has a known interaction with 275 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Biostress-B contains 4 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.
Can I take this if I have a wheat allergy?
No. Wheat is a major food allergen, and Wheat Germ in this product can trigger allergic reactions in sensitive people — including hives, swelling, and in serious cases, anaphylaxis. If you have a wheat allergy, skip this product.
What side effects might I get from the Rice Bran in here?
Most people do fine with it. You might notice belly discomfort, gas, or irregular bowel habits when you first start taking it, but these usually settle down. Rarely, some people have allergic reactions like itching, hives, or swelling.
Is this safe during pregnancy?
Rice Bran and Thiamine are both likely safe in pregnancy. The data on Wheat Germ says safety isn't established — so talk with your doctor before starting it if you're pregnant or planning to be.
Can I take this if I'm breastfeeding?
Rice Bran is likely safe. Thiamine is also likely safe and actually needed while breastfeeding, though use it at recommended amounts under your provider's guidance. Wheat Germ's safety data isn't on file, so ask your doctor.
Will this help my cholesterol?
Rice Bran has possibly effective evidence for managing high cholesterol and blood-fat problems. It's not a replacement for diet or prescribed medications, but it may be a useful add-on — talk to your doctor about whether it makes sense for you.
What's Primary Yeast, and does it do anything?
Primary Yeast is included in this product, but we don't have safety or effectiveness data on it in our records. Your pharmacist can tell you more about what it's meant to do in this formula.

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.

Biostress-B label
Go deeper

The Full Monographs Behind Biostress-B’s Ingredients

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

Herb & supplement monograph

Rice Bran

Rice bran is the nutrient-rich outer layer of the rice grain and is a good source of fiber, healthy fats, and plant compounds. It is most studied for helping lower cholesterol, but for most...

Read the full Rice Bran monograph → Herb & supplement monograph

Thiamine

Interacts with 3 drugs

Thiamine (vitamin B1) is an essential nutrient your body needs to turn food into energy and to keep your nerves and heart healthy. Most people get enough from food, but supplements are clear...

Read the full Thiamine monograph → Herb & supplement monograph

Wheatgrass

Interacts with 272 drugs

Wheatgrass is the young grass of the wheat plant, taken as a juice or powder, and is mainly used as a concentrated source of vitamins and plant nutrients. Solid scientific evidence for most...

Read the full Wheatgrass monograph →
Sources

Sources & How We Checked

Biostress-B'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 19 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.

Rice Bran 7 references
  1. Covington TR, et al. Handbook of Nonprescription Drugs. 11th ed. Washington, DC: American Pharmaceutical Association, 1996.
  2. Fujiwaki T, Furusho K. The effects of rice bran broth bathing in patients with atopic dermatitis. Acta Paediatr Jpn 1992;34:505-10.
  3. Uenotsuchi T, Satoh E, Kiryu H, Yano Y. Pyemotes dermatitis caused by indirect contact with husk rice. Br J Dermatol 2000;143:680-2. DOI
  4. Satoh R, Tsuge I, Tokuda R, Teshima R. Analysis of the distribution of rice allergens in brown rice grains and of the allergenicity of products containing rice bran. Food Chem. 2019;276:761-767. PubMed
  5. Togashi Y, Inomata N, Suzuki A, Hakuta A, Aihara M. Pediatric case with rice bran allergy induced by epicutaneous sensitization in a family rice shop. Allergol Int. 2019;68(1):117-118. PubMed
  6. So WKW, Chan JYW, Law BMH, et al. Effects of a Rice Bran Dietary Intervention on the Composition of the Intestinal Microbiota of Adults with a High Risk of Colorectal Cancer: A Pilot Randomised-Controlled Trial. Nutrients 2021;13(2):526. PubMed
  7. Haneda Y, Kadowaki S, Furui M, Taketani T. A pediatric case of food-dependent exercise-induced anaphylaxis due to rice bran. Asia Pac Allergy 2021;11(1):e4. PubMed

See these in context on the Rice Bran monograph →

Thiamine 7 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. 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
  3. 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
  4. Rogovik, A. L., Vohra, S., and Goldman, R. D. Safety considerations and potential interactions of vitamins: should vitamins be considered drugs? Ann.Pharmacother. 2010;44(2):311-324. PubMed
  5. Arruti N, Bernedo N, Audicana MT, Villarreal O, Uriel O, Muñoz D. Systemic allergic dermatitis caused by thiamine after iontophoresis. Contact Dermatitis. 2013 Dec;69(6):375-6. PubMed
  6. Thiamine hydrochloride injection package insert. Lake Zurich, IL: Fresenius Kabi, LLC; September 2019.
  7. Vora B, Wen A, Yee SW, et al. The Effect of Trimethoprim on Thiamine Absorption: A Transporter-Mediated Drug-Nutrient Interaction. Clin Pharmacol Ther 2023;114(2):381-392.

See these in context on the Thiamine monograph →

Wheatgrass 5 references
  1. Ben-Arye E, Golden E, Wengrower D, et al. Wheat grass juice in the treatment of active distal ulcerative colitis a randomized double-blind placebo-controlled trial. Scand J Gastroenterol 2002;4:444-9.. PubMed
  2. Mohan Y, Jesuthankaraj GN1, Ramasamy Thangavelu N. Antidiabetic and antioxidant properties of Triticum aestivum in streptozotocin-induced diabetic rats. Adv Pharmacol Sci 2013;2013:716073.
  3. Shakya G, Randhi PK, Pajaniradje S, Mohankumar K, Rajagopalan R. Hypoglycaemic role of wheatgrass and its effect on carbohydrate metabolic enzymes in type II diabetic rats. Toxicol Ind Health 2016;32(6):1026-32. PubMed
  4. Food and Drug Administration. Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA); Public Law 108-282, Title II. Accessed on May 19, 2021. Available at: https://www.fda.gov/food/food-allergensgluten-free-guidance-documents-regulatory-infor
  5. Haron MH, Dale O, Martin K, et al. Evaluation of the Herb-Drug Interaction Potential of Commonly Used Botanicals on the US Market with Regard to PXR- and AhR-Mediated Influences on CYP3A4 and CYP1A2. J Diet Suppl 2022. PubMed

See these in context on the Wheatgrass monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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