Interactions on record — worth a quick check against your medications. Check your meds →
Dietary supplement

Butterbur 100 mg Ingredients & Drug Interactions

by NusaPure

Butterbur 100 mg label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Butterbur 100 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

The interaction bottom line Most serious interaction: Moderate

Butterbur 100 mg is a dietary supplement by NusaPure with 1 active ingredient. Its ingredients are commonly taken for migraine prevention, hay fever (allergic rhinitis), asthma symptoms.Based on those ingredients, 87 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Butterbur Root Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Butterbur 100 mg by NusaPure

Ask about any prescription or over-the-counter medication and we check it for interactions with Butterbur 100 mg by NusaPure — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
Prefer a human? Send your question to our licensed pharmacists — free, answered by email within 24 hours.

HelloPharmacist Scorecard of Butterbur 100 mg by NusaPure

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

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.

This product contains one active ingredient: butterbur root extract at 100 mg per capsule. Butterbur has a long history in herbal medicine, and this extract is standardized to remove pyrrolizidine alkaloids (PAs) — toxic compounds found in raw butterbur that can harm the liver.

The capsule itself contains inactive ingredients: cellulose, silica, magnesium stearate, and rice flour.

Does it work?

Moderate 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 Butterbur's overall clinical evidence instead.

Moderate

Some clinical evidence supports Butterbur 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 ingredient's overall clinical evidence instead.
  • On file: Allergic rhinitis (hay fever) — rated "Possibly Effective" (Natural Medicines).
  • On file: Migraine headache — rated "Possibly Effective" (Natural Medicines).

Butterbur is possibly effective for migraine headache and allergic rhinitis (hay fever) according to the evidence we hold. That means there's some research support, but it's not conclusive.

If you're considering it for one of these two uses, talk with your pharmacist or doctor about whether the evidence fits your situation.

The evidence, ingredient by ingredient Butterbur

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.

Butterbur is generally well tolerated when taken by mouth. The most common side effects are mild — belching, diarrhea, drowsiness, fatigue, headache, itchy eyes, itching, rash, and stomach upset.

Rare but serious liver injury (hepatotoxicity) has been reported, especially with products containing pyrrolizidine alkaloids; this product claims to be PA-free, though rare liver cases have been noted even with PA-free supplements. The safety data advises against butterbur during pregnancy and while breastfeeding because there isn't enough safety information and there are possible risks to the developing baby or nursing infant.

If you're pregnant, planning to become pregnant, or breastfeeding, talk with your doctor or pharmacist before taking this product.

Side effects, ingredient by ingredient Butterbur

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?
  • 1 of the 1 matched ingredient can interact with medications — Butterbur.
  • The most serious interaction on file is rated Moderate.
  • For scale: 88 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 with your pharmacist before taking this product if you use CYP3A4 inducers — a group that includes certain antibiotics, antifungals, anticonvulsants, and other medications. Use the medication checker on this page to look up your exact drugs.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

Butterbur may help with migraines and hay fever, and it's usually easy on your stomach. But check your medications first — especially if you take antibiotics, antifungals, or seizure drugs.

Skip it if you're pregnant or breastfeeding, and always use a PA-free product like this one.

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 Nov 22, 2022.

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 Butterbur 100 mg, straight from the product label.

Brand NusaPure
Barcode (UPC) X001MLQ6DH
Net contents 200 Veg Cap(s)
Market status On market
Date entered into DSLD Nov 22, 2022
DSLD ID 274939
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, 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 Butterbur 100 mg by NusaPure, 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 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
200
UPC/BARCODE
X001MLQ6DH
IngredientAmount% DV
Butterbur Root Extract100 mg--

Other ingredients: Cellulose, Silica, Magnesium Stearate, Rice Flour

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.
Suggested/Recommended/Usage/Directions

Directions: For adults, take 1 capsule daily, preferably with meals.

Precautions

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

Discontinue use and consult your doctor if any adverse reactions occur. Do not use if safety seal is damaged or missing.

Not intended for use by persons under the age of 18. Keep out of reach of children.

Allergen Information: Contains no artificial coloring, artificial flavors, yeast, corn, milk, or milk derivatives, lactose, salt, sodium, soy, sugar, gluten, egg, wheat, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Storage

Store in a cool dry place.

Formulation

Natural color variation may occur in this product.

GMO Free Made with Non-GMO Ingredients Gluten free FDA Registered Facility

Assembled in USA Natural Supports a healthy nervous system Supports healthy neurological function Supports healthy inflammatory response Supports healthy vascular function

Allergen Information: Contains no artificial coloring, artificial flavors, yeast, corn, milk, or milk derivatives, lactose, salt, sodium, soy, sugar, gluten, egg, wheat, fish, shellfish or tree nut ingredients.

FDA Disclaimer Statement

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

Seals/Symbols

Premium Quality Assembled in USA Gluten free FDA Registered Facility

Manufactured in a cGMP Inspected Facility

FDA Statement of Identity

Dietary Supplement

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

See for yourself

Butterbur 100 mg by NusaPure label

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

Butterbur 100 mg 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 Butterbur 100 mg by NusaPure

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container200 Amounts shown are per serving.

Butterbur Root Extract

Interacts with
87 drugs
100 mg per serving Form: Petasin

Butterbur is a plant extract most studied for preventing migraines and easing hay fever symptoms, and some standardized products show promise. However...

Butterbur Root Extract monograph & interactions

Other (inactive) ingredients: Cellulose, Silica, Magnesium Stearate, Rice Flour. These complete the product’s ingredient list but are not active constituents.

Interaction report

Butterbur 100 mg by NusaPure Drug Interactions

Want to check YOUR meds against Butterbur 100 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 checker
87Drugs
87 Moderate

Ingredients driving the most interactions

Butterbur Root Extract 87

Individual Drug Interactions

The ingredients in Butterbur 100 mg interact with 87 drugs. Click any drug to see the details.

1 of the 1 ingredient in Butterbur 100 mg interact with drugs. Each result below shows which ingredient is responsible. Butterbur Root Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Butterbur 100 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.

Butterbur Root Extract1 drug type · 87 drugs

Cytochrome P450 3A4 (Cyp3A4) Inducers

Theoretically, CYP3A4 inducers might increase the toxicity of butterbur.
The pyrrolizidine alkaloid (PA) constituents found in some butterbur products are substrates of CYP3A4. Theoretically, drugs that induce CYP3A4 might increase the conversion of PAs to toxic metabolites.

Likelihood Possible Evidence D
Butterbur Root Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Butterbur 100 mg, from the product label.

NusaPure

See all NusaPure products
Name
Gmax Central LLC
Street Address
4700 Millenia Boulevard, Suite 175 PMB 92909
City
Orlando
State
FL
ZipCode
32839
Pharmacist Counseling Corner

Butterbur 100 mg by NusaPure: Common Questions

Does Butterbur 100 mg by NusaPure interact with any medications?
Yes. Based on its ingredients, Butterbur 100 mg has a known interaction with 87 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Butterbur 100 mg 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.
Will butterbur hurt my liver?
Raw butterbur can damage the liver because it contains toxic compounds called pyrrolizidine alkaloids. This product is standardized to remove them, which is important for safety. That said, rare cases of liver injury have been reported even with PA-free butterbur supplements, so it's not a guarantee. If you have liver disease or concerns, talk with your doctor before starting.
What side effects might I notice?
Most people who take butterbur tolerate it well. The common ones are mild: belching, diarrhea, drowsiness, fatigue, headache, itchy eyes, itching, rash, and stomach upset. Serious side effects are rare but can include liver injury.
Can I take this if I'm pregnant or breastfeeding?
No. The safety data advises against butterbur during pregnancy because there isn't enough information and there are possible risks. It's also best to avoid while breastfeeding for the same reason. Talk with your doctor if you have questions.
Does butterbur actually work for migraines?
The evidence shows butterbur is possibly effective for migraines. That means there's some research support, but it's not definitive. Your results may vary, and it's worth discussing with your doctor whether it makes sense for you.
Can butterbur help with allergies?
Yes — butterbur is possibly effective for allergic rhinitis (hay fever) according to the data we hold. Again, that's a qualified finding, so talk with your pharmacist about whether it fits your allergy picture.

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

Not sure if Butterbur 100 mg 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.

Butterbur 100 mg label
Go deeper

The Full Monographs Behind Butterbur 100 mg’s Ingredients

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

Herb & supplement monograph

Butterbur

Interacts with 87 drugs

Butterbur is a plant extract most studied for preventing migraines and easing hay fever symptoms, and some standardized products show promise. However, raw or unprocessed butterbur contains...

Read the full Butterbur monograph →
Sources

Sources & How We Checked

Butterbur 100 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.

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 7 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.

Butterbur 7 references
  1. Danesch U, Rittinghausen R. Safety of a patented special butterbur root extract for migraine prevention. Headache 2003;43:76-8.. PubMed
  2. Chojkier M. Hepatic sinusoidal-obstruction syndrome: toxicity of pyrrolizidine alkaloids. J Hepatol 2003;39:437-46. PubMed
  3. Roeder E. Medicinal plants in Europe containing pyrrolizidine alkaloids. Pharmazie 1995;50:83-98.
  4. Wang YP, Yan J, Fu PP, Chou MW. Human liver microsomal reduction of pyrrolizidine alkaloid N-oxides to form the corresponding carcinogenic parent alkaloid. Toxicol Lett 2005;155:411-20. PubMed
  5. Pothmann R, Danesch U. Migraine Prevention in Children and Adolescents: Results of an Open Study With a Special Butterbur Root Extract. Headache 2005;45:196-203.. PubMed
  6. Oelkers-Ax R, Leins A, Parzer P, et al. Butterbur root extract and music therapy in the prevention of childhood migraine: an explorative study. Eur J Pain 2008;12:301-13. PubMed
  7. Schapowal A. Butterbur Ze339 for the treatment of intermittent allergic rhinitis: dose-dependent efficacy in a prospective, randomized, double-blind, placebo-controlled study. Arch Otolaryngol.Head Neck Surg. 2004;130:1381-86. PubMed

See these in context on the Butterbur 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