No known drug interactions for the matched ingredients — not a guarantee none exist. Check your meds →
Dietary supplement

Montana YewTip Oil Ingredients & Drug Interactions

by Bighorn Botanicals

Montana YewTip Oil label
See full label image
Liquid Category: Botanical
No known interaction
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Montana YewTip Oil 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 No known interaction

Montana YewTip Oil is a dietary supplement by Bighorn Botanicals with 1 active ingredient. Its ingredients are commonly taken for source of cancer chemotherapy drugs, historical folk and ornamental use, traditional remedies (now considered unsafe).We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.

Jump to a section

HelloPharmacist Scorecard of Montana YewTip Oil by Bighorn Botanicals

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 Aug 20, 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 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

Montana YewTip Oil contains one active ingredient: Pacific Yew Branch Tip Extract, Fresh. The product also includes extra virgin olive oil as an inactive ingredient.

Does it work?

Couldn't assess
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 assessable

This is a single-ingredient Yew product and its label doesn't state a use — see Yew's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

No effectiveness data is on file for Pacific Yew Branch Tip Extract in our records.

The evidence, ingredient by ingredient Yew

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 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Yew is highly toxic and should never be used as a supplement or home remedy — it can cause sudden death. If swallowed, yew poisoning causes nausea, dry mouth, vomiting, dizziness, severe abdominal pain, weakness, trembling, shortness of breath, loss of coordination, and heart problems including irregular heartbeat, dangerously slow or fast heart rate, and cardiac arrest.

These symptoms typically begin within 30 to 90 minutes and can progress to unconsciousness, seizures, and death within 24 hours. Standard heart medications often don't work on yew-related arrhythmias, and treatment requires intensive support including pacemakers.

Yew is unsafe during pregnancy and unsafe while breastfeeding — it must be avoided entirely. There is also a known risk of severe allergic reaction in people sensitive to yew; those with a yew allergy may become hypersensitive to the cancer drug docetaxel, which is derived from yew.

Side effects, ingredient by ingredient Yew

Meds to double-check

No known interactions
Known Interaction Concern · database check
No known interactions

No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.

Why this rating?
  • None of the 1 matched ingredient has a documented medication interaction on file.

No interactions are documented for the ingredient we could check. However, this product is unsafe to use at all due to yew toxicity — medication interactions are not the concern here.

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.

We cannot recommend this product. Yew is a poison that has caused death and carries no established therapeutic benefit as a supplement.

If you or someone else has swallowed this product, call poison control or emergency services immediately. Do not use during pregnancy or while breastfeeding.

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 Feb 22, 2024.

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 Montana YewTip Oil, straight from the product label.

Brand Bighorn Botanicals
Barcode (UPC) 019962357831
Net contents 16 Fluid Ounce(s); 500 mL
Market status On market
Date entered into DSLD Feb 22, 2024
DSLD ID 306436
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating)
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 Montana YewTip Oil by Bighorn Botanicals, 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 mL
Maximum serving Sizes:
2 mL
Servings per container
250
UPC/BARCODE
019962357831
IngredientAmount% DV
Pacific Yew Branch Tip Extract, Fresh2 mL--

Other ingredients: Extra Virgin Olive Oil

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.
Brand IP Statement(s)

Bighorn Botanicals, Inc. ESTB. 1991 Montana yewtip the natural taxane source

Seals/Symbols

Made in Montana USA

Formulation

Sustainably wildcrafted

Suggested use: As a non-alcoholic dietary supplement, take 2 droppers full up to 3 times daily in juice or water.

FDA Statement of Identity

Herbal Dietary Supplement

Formula

The natural taxane source from the legendary yew tree

Suggested/Recommended/Usage/Directions

Suggested use: As a non-alcoholic dietary supplement, take 2 droppers full up to 3 times daily in juice or water. Can also be used topically.

Precautions

Do not take if pregnant or lactating.

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

See for yourself

Montana YewTip Oil by Bighorn Botanicals label

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

Montana YewTip Oil 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 Montana YewTip Oil by Bighorn Botanicals

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size2 mL Dosage formLiquid Servings per container250 Amounts shown are per serving.

Pacific Yew Branch Tip Extract, Fresh

No known
interactions
2 mL per serving

Yew is a highly poisonous plant, and nearly all parts can be deadly even in small amounts. It is famous mainly because pharmaceutical drugs like pacli...

Pacific Yew Branch Tip Extract, Fresh monograph & interactions

Other (inactive) ingredients: Extra Virgin Olive Oil. These complete the product’s ingredient list but are not active constituents.

Interaction report

Montana YewTip Oil by Bighorn Botanicals Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in Montana YewTip Oil. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.

The maker

Brand information

Manufacturer and brand details for Montana YewTip Oil, from the product label.

Bighorn Botanicals

See all Bighorn Botanicals products
Name
Bighorn Botanicals, Inc.
Street Address
PO Box 133
City
Noxon
State
MT
ZipCode
59853
Phone Number
888-847-1223
Web Address
www.bighornbotanicals.com
Pharmacist Counseling Corner

Montana YewTip Oil by Bighorn Botanicals: Common Questions

Does Montana YewTip Oil by Bighorn Botanicals interact with any medications?
We do not currently list a known interaction for the mapped ingredients in Montana YewTip Oil. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
Montana YewTip Oil contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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 yew safe to use as a supplement?
No. Yew is highly toxic and should never be used as a supplement or home remedy — it can cause sudden death. It has no established safe dose.
What happens if I swallow this product?
Yew poisoning causes nausea, vomiting, severe abdominal pain, dizziness, weakness, trembling, and heart problems including irregular heartbeat and cardiac arrest. Symptoms begin within 30 to 90 minutes. If you or someone else swallows this, call poison control or emergency services immediately.
Can I use this during pregnancy or breastfeeding?
No. Yew is unsafe during pregnancy and unsafe while breastfeeding — it must be avoided entirely.
Is there any evidence this product works?
No effectiveness data is on file for Pacific Yew Branch Tip Extract in our records.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Montana YewTip Oil is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Montana YewTip Oil label
Go deeper

The Full Monographs Behind Montana YewTip Oil’s Ingredients

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

Herb & supplement monograph

Yew

Yew is a highly poisonous plant, and nearly all parts can be deadly even in small amounts. It is famous mainly because pharmaceutical drugs like paclitaxel (Taxol) are made from yew compound...

Read the full Yew monograph →
Sources

Sources & How We Checked

Montana YewTip Oil'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 17 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.

Yew 17 references
  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Gennaro A. Remington: The Science and Practice of Pharmacy. 19th ed. Lippincott: Williams & Wilkins, 1996.
  3. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  4. Sinn LE, Porterfield JF. Fatal taxine poisoning from yew leaf ingestion. J Forensic Sci 1991;36:599-601. DOI
  5. Van IG, Visser R, Peltenburg H, et al. Sudden unexpected death due to Taxus poisoning. A report of five cases, with review of the literature. Forensic Sci Int 1992;56:81-7. PubMed
  6. Krenzelok EP, Jacobsen TD, Aronis J. Is the yew really poisonous to you? J Toxicol Clin Toxicol 1998;36:219-23. PubMed
  7. Maguchi, S. and Fukuda, S. Taxus cuspidata (Japanese yew) pollen nasal allergy. Auris Nasus Larynx 2001;28 Suppl:S43-S47. PubMed
  8. Willaert, W., Claessens, P., Vankelecom, B., and Vanderheyden, M. Intoxication with taxus baccata: cardiac arrhythmias following yew leaves ingestion. Pacing Clin.Electrophysiol. 2002;25(4 Pt 1):511-512.
  9. Yersin, B., Frey, J. G., Schaller, M. D., Nicod, P., and Perret, C. Fatal cardiac arrhythmias and shock following yew leaves ingestion. Ann.Emerg.Med. 1987;16(12):1396-1397. PubMed
  10. de Vos FYFL, van Laarhoven HMW. Taxus baccata allergy in a breast cancer patient. Neth J Med. 2012;70(5):249-0.
  11. Persico A, Bacis G, Uberti F, et al. Identification of taxine derivatives in biological fluids from a patient after attempted suicide by ingestion of yew (Taxus baccata) leaves. J Anal Toxicol. 2011;35(4):238-41. PubMed
  12. Pilija V, Djurendic-Brenesel M, Miletic S. Fatal poisoning by ingestion of Taxus Baccata leaves. Forensic Sci Int. 2018;290:e1-e4. PubMed
  13. Farag M, Badowski D, Koschny R, Skopp G, Brcic A, Szabo GB. Extracorporeal life support and digoxin-specific Fab fragments for successful management of Taxus baccata intoxication with low output and ventricular arrhythmia. Am J Emerg Med. 2017;35(12):1987 PubMed
  14. Vardon Bounes F, Tardif E, Ruiz S, Gallart JC, Conil JM, Delmas C. Suicide attempt with self-made Taxus baccata leaf capsules: survival following the application of extracorporeal membrane oxygenation for ventricular arrythmia and refractory cardiogenic s
  15. Baum C, Bohnen S, Sill B, et al. Prolonged resuscitation and cardiogenic shock after intoxication with European yew (Taxus baccata): Complete recovery after intermittent mechanical circulatory support. Int J Cardiol. 2015;181:176-8. PubMed
  16. Hermes-Laufer J, Meyer M, Rudiger A, et al. Extracorporeal life support as bridge to recovery in yew poisoning: case reports and literature review. ESC Heart Fail. 2021 Feb;8(1):705-709. PubMed
  17. G N, Chan M, Gue YX, Gorog DA. Fatal heart block from intentional yew tree (Taxus baccata) ingestion: a case report. Eur Heart J Case Rep. 2019 Dec 23;4(1):1-4. PubMed

See these in context on the Yew 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

Keep exploring
Supplement interaction checker › Check any supplement or product against your medications Drug–drug interactions › Check two or more of your medications against each other Browse medications A–Z › Every drug we've checked against herbs & supplements NDC & pricing lookup › Find a drug’s NDCs, packaging and costs Ask a pharmacist › Free, personal answer from our licensed team