Feverfew Alcohol Free Ingredients & Drug Interactions
by Hawaii Pharm
What is this page for?
First and foremost: checking Feverfew Alcohol Free 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
Feverfew Alcohol Free is a dietary supplement by Hawaii Pharm with 1 active ingredient. Its ingredients are commonly taken for migraine prevention, headache, fever (traditional).Based on those ingredients, 929 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Feverfew Herb Extract, Dry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Feverfew Alcohol Free by Hawaii Pharm
Ask about any prescription or over-the-counter medication and we check it for interactions with Feverfew Alcohol Free by Hawaii Pharm — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Feverfew Alcohol Free by Hawaii Pharm
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product contains one active ingredient: feverfew herb extract in dry form. Feverfew is a plant traditionally used for headache relief and inflammation.
The liquid is delivered in glycerin and water as inactive ingredients.
Does it work?
Couldn't assess
The evidence we hold on feverfew for tension headaches, skin conditions like prurigo nodularis and psoriasis, and rheumatoid arthritis is insufficient to make a reliable claim about how well it works. That doesn't mean it doesn't work—it means the quality or amount of research available isn't strong enough to say one way or the other.
How safe is it?
Well-documented data
Feverfew is generally well tolerated short-term, though some people experience stomach upset (nausea, heartburn, diarrhea, constipation, bloating, or abdominal pain), skin rash, or mouth irritation. Chewing fresh leaves is more likely to cause mouth sores than taking a commercial preparation like this one.
One thing to watch: stopping feverfew after long-term use may trigger "post-feverfew syndrome"—anxiety, headaches, and insomnia—so if you've been taking it regularly, taper it gradually rather than stopping cold. Avoid this product during pregnancy; it may stimulate the uterus and its safety in pregnancy isn't established.
There isn't enough reliable safety information to recommend it while breastfeeding either, so talk that over with your doctor or pharmacist.
Meds to double-check
Moderate interaction found
Blood thinners and antiplatelet drugs (such as warfarin or aspirin) are the main concern—feverfew may increase bleeding risk. Additionally, any medication cleared through your liver may accumulate to higher levels; this includes drugs processed through CYP2C19, CYP2D6, CYP1A2, CYP2C9, CYP3A4, or CYP2C8 pathways.
Check your exact medications with your doctor or pharmacist before combining them with this product.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Feverfew Alcohol Free is one to double-check before you start, especially if you take blood thinners, antiplatelet drugs, or medications metabolized by your liver. The interactions we know about are theoretical—not yet reported in actual patients—but the medication count is large enough that your own doctor or pharmacist should review your specific prescriptions alongside this product.
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 Aug 24, 2023.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Feverfew Alcohol Free, straight from the product label.
| Brand | Hawaii Pharm |
|---|---|
| Barcode (UPC) | 840253621887 |
| Net contents | 4 Fluid Ounce(s); 120 mL |
| Market status | On market |
| Date entered into DSLD | Aug 24, 2023 |
| DSLD ID | 300671 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Feverfew Alcohol Free by Hawaii Pharm, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Feverfew Herb Extract, Dry | 1156 mg | -- |
Other ingredients: Glycerin, Water
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Brand IP Statement(s)
Hawaii Pharm Herbal Extract Highest quality since 2008
Suggested/Recommended/Usage/Directions
Suggested use: Shake well before using. For adults add about 20-30 drops (0.7-1 mL, one full squeeze of the dropper bulb) to some juice or water, up to 4 times a day.
Precautions
Warning: We recommend to seek expert medical advice before taking.
Do not use if you are allergic to any ingredients.
Consult your physician before giving to children under 18, during pregnancy, if nursing or taking medications.
Consult your physician before giving to children under 18, during pregnancy, if nursing or taking medications.
May affect the ability to drive and operate machinery. May have contraindications, can cause side effects and adverse reactions. Do not use if seal is broken or missing.
Keep out of the reach of children!
Storage
Store in a cool dry place.
Seals/Symbols
cGMP Made in compliance with cGMP 21 CFR 111 in an FDA registered and inspected facility.
C2H5OH Alcohol free USA Made in United States of America
FDA Disclaimer Statement
This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure or prevent any disease.
General Statements
Scan this QR-code to get 15% discount on your next purchase. Limited time deal.
Formula
Tanacetum parthenium
Formulation
Only natural ingredients Purity is laboratory tested and verified
All the raw materials are gluten-free by their nature No artificial colors, flavors, or preservatives
Not tested on animals
C2H5OH Alcohol free
Made in USA, Hawaii
FDA Statement of Identity
Herbal Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Feverfew Alcohol Free by Hawaii Pharm label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in Feverfew Alcohol Free by Hawaii Pharm
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size0.7 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.
Feverfew Herb Extract, Dry
Interacts with929 drugs
Feverfew is a daisy-family herb best known for migraine prevention, where some studies suggest it may modestly lower how often migraines occur, though...
Feverfew Herb Extract, Dry monograph & interactionsOther (inactive) ingredients: Glycerin, Water. These complete the product’s ingredient list but are not active constituents.
Feverfew Alcohol Free by Hawaii Pharm Drug Interactions
HelloPharmacist Interaction Report
Feverfew Alcohol Free by Hawaii Pharm contains feverfew herb extract, which has documented interactions with multiple medications.
The most serious concern involves blood thinners and antiplatelet drugs (medicines that prevent blood clots)—feverfew may increase bleeding risk when combined with them. Laboratory research shows this is a theoretical risk; it hasn't been confirmed in humans yet, but one case report documents vaginal bleeding in someone taking high-dose feverfew.
Read the full breakdown — every affected drug type, severity by severity
Feverfew may also slow how your body clears drugs processed through several liver pathways (CYP2C19, CYP2D6, CYP1A2, CYP2C9, CYP3A4, and CYP2C8). This means levels of certain medications could rise in your bloodstream.
Again, this is based on lab research—it hasn't been reported as a problem in patients so far, but it's worth checking.
Altogether, these interactions span 930 individual medications. Before you start this product, run a list of your current prescriptions and over-the-counter drugs through the medication checker below.
If you take any blood thinners, antiplatelet medications, or drugs metabolized by your liver, you'll want to confirm with your doctor or pharmacist that this supplement is safe for you.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Feverfew Alcohol Free?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Feverfew Alcohol Free interact with 929 drugs. Click any drug to see the details.
1 of the 1 ingredient in Feverfew Alcohol Free interact with drugs. Each result below shows which ingredient is responsible. Feverfew Herb Extract, Dry
Acetaminophen, OxycodonePercocet, Roxicet, Tylox, Xartemis XR
How Acetaminophen, Oxycodone interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Oxycodone interactionAcetaminophen, Pamabrom, PyrilamineMidol Max Strength PMS, Pamprin, Pamprin ES
How Acetaminophen, Pamabrom, Pyrilamine interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Pamabrom, Pyrilamine interactionAcetaminophen, PentazocineTalacen
How Acetaminophen, Pentazocine interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Pentazocine interactionAcetaminophen, Phenylephrine, ChlorpheniramineSuper Cold Tabs
How Acetaminophen, Phenylephrine, Chlorpheniramine interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Phenylephrine, Chlorpheniramine interactionAcetaminophen, PhenylpropanolamineTetra Caps
How Acetaminophen, Phenylpropanolamine interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Phenylpropanolamine interactionAcetaminophen, Phenylpropanolamine, PhenyltoloxamineSinubid
How Acetaminophen, Phenylpropanolamine, Phenyltoloxamine interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Phenylpropanolamine, Phenyltoloxamine interactionAcetaminophen, PhenyltoloxaminePercogesic, Relagesic
How Acetaminophen, Phenyltoloxamine interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Phenyltoloxamine interactionAcetaminophen, Phenyltoloxamine, SalicylamideLobac
How Acetaminophen, Phenyltoloxamine, Salicylamide interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Phenyltoloxamine, Salicylamide interactionAcetaminophen, PropoxypheneDarvocet-N 100, Darvocet-N 50, E-Lor, Wygesic
How Acetaminophen, Propoxyphene interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Propoxyphene interactionAcetaminophen, PseudoephedrineChildren's Tylenol Sinus, Dristan N.D., Non-Aspirin Sinus, Ornex, Ornex-Max, Sinutab +5 more
How Acetaminophen, Pseudoephedrine interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Pseudoephedrine interactionAcetaminophen, Pseudoephedrine, TriprolidineActifed Plus ES
How Acetaminophen, Pseudoephedrine, Triprolidine interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Acetaminophen, Pseudoephedrine, Triprolidine interactionAcetylsalicylic AcidEntrophen
How Acetylsalicylic Acid interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, feverfew might have additive effects and increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Read the full Feverfew Herb Extract, Dry + Acetylsalicylic Acid interactionAdagrasibKrazati
How Adagrasib interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Read the full Feverfew Herb Extract, Dry + Adagrasib interactionAerosphere Budesonide, Formoterol Fumarate, GlycopyrrolateBreztri
How Aerosphere Budesonide, Formoterol Fumarate, Glycopyrrolate interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 2c19 (cyp2c19) Substrates, Cytochrome P450 2c9 (cyp2c9) Substrates +1 Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C19.
Read the full Feverfew Herb Extract, Dry + Aerosphere Budesonide, Formoterol Fumarate, Glycopyrrolate interactionAgomelatineValdoxan
How Agomelatine interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2c19 (cyp2c19) Substrates +1 Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Read the full Feverfew Herb Extract, Dry + Agomelatine interactionAlfentanilAlfenta
How Alfentanil interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Read the full Feverfew Herb Extract, Dry + Alfentanil interactionAlfuzosinUroxatral
How Alfuzosin interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Read the full Feverfew Herb Extract, Dry + Alfuzosin interactionAliskirenTekturna
How Aliskiren interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Read the full Feverfew Herb Extract, Dry + Aliskiren interactionAlmotriptanAlmogran, Axert
How Almotriptan interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Read the full Feverfew Herb Extract, Dry + Almotriptan interactionAlogliptinNesina
How Alogliptin interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2c8 (cyp2c8) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Read the full Feverfew Herb Extract, Dry + Alogliptin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 2c8 (cyp2c8) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C8.
Read the full Feverfew Herb Extract, Dry + Alogliptin, Pioglitazone interactionAlpelisibPiqray
How Alpelisib interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Read the full Feverfew Herb Extract, Dry + Alpelisib interactionAlprazolamNiravam, Xanax
How Alprazolam interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Read the full Feverfew Herb Extract, Dry + Alprazolam interactionAlteplase, TpaActilyse, Activase
How Alteplase, Tpa interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, feverfew might have additive effects and increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Read the full Feverfew Herb Extract, Dry + Alteplase, Tpa interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryAnticoagulant/antiplatelet Drugs, Cytochrome P450 2d6 (cyp2d6) Substrates Moderate
Interaction Summary
Theoretically, feverfew might have additive effects and increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Read the full Feverfew Herb Extract, Dry + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, feverfew might have additive effects and increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Read the full Feverfew Herb Extract, Dry + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAmbrisentanLetairis, Volibris
How Ambrisentan interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Read the full Feverfew Herb Extract, Dry + Ambrisentan interactionAmiodaroneCordarone, Pacerone
How Amiodarone interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 2c8 (cyp2c8) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C8.
Read the full Feverfew Herb Extract, Dry + Amiodarone interactionAmitriptylineElavil
How Amitriptyline interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 2c9 (cyp2c9) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +3 Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C9.
Read the full Feverfew Herb Extract, Dry + Amitriptyline interactionAmitriptyline, ChlordiazepoxideLimbitrol DS
How Amitriptyline, Chlordiazepoxide interacts with Feverfew Alcohol Free — through 1 ingredient. Tap an ingredient for the detail:
Feverfew Herb Extract, DryCytochrome P450 2c19 (cyp2c19) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +3 Moderate
Interaction Summary
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C19.
Read the full Feverfew Herb Extract, Dry + Amitriptyline, Chlordiazepoxide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Feverfew Alcohol Free 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.
Feverfew Herb Extract, Dry
Anticoagulant/Antiplatelet Drugs
Theoretically, feverfew might have additive effects and increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Laboratory research suggests that feverfew may inhibit platelet aggregation. Additionally, in one case report, a 36-year-old patient taking feverfew 2400 mg daily for 3 months experienced vaginal bleeding and a prolonged menstrual cycle, with a modest increase in partial thromboplastin time (PTT) and prothrombin time (PT).
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Laboratory research shows that feverfew might inhibit CYP1A2. So far, this interaction has not been reported in humans.
Cytochrome P450 2C19 (Cyp2C19) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C19.
Laboratory research shows that feverfew might inhibit CYP2C19. So far, this interaction has not been reported in humans.
Cytochrome P450 2C8 (Cyp2C8) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C8.
Laboratory research shows that feverfew might inhibit CYP2C8. So far, this interaction has not been reported in humans.
Cytochrome P450 2C9 (Cyp2C9) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C9.
Laboratory research shows that feverfew might inhibit CYP2C9. So far, this interaction has not been reported in humans.
Cytochrome P450 2D6 (Cyp2D6) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP2D6.
Laboratory research shows that feverfew might inhibit CYP2D6. So far, this interaction has not been reported in humans.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Laboratory research shows that feverfew might inhibit CYP3A4. So far, this interaction has not been reported in humans.
Brand information
Manufacturer and brand details for Feverfew Alcohol Free, from the product label.
Hawaii Pharm
See all Hawaii Pharm products- Name
- Hawaii Pharm LLC
- Street Address
- 510 Sumner St. Ste. 613
- City
- Honolulu
- State
- HI
- ZipCode
- 96817
- Phone Number
- 888-854-2924
- Web Address
- www.hawaiipharm.com
Feverfew Alcohol Free by Hawaii Pharm: Common Questions
Does Feverfew Alcohol Free by Hawaii Pharm interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take this while pregnant?
Can I take this while breastfeeding?
What side effects might I notice?
Does feverfew actually help with headaches?
Why is this product alcohol-free?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Feverfew Alcohol Free is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Feverfew Alcohol Free’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Feverfew Alcohol Free's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 18 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.
Feverfew 18 references
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Awang DVC. Prescribing therapeutic feverfew (Tancetum pathrnium (L.) Schultz Bip., syn. Chrysanthemumparthenium (L.) Bernh). Int Med 1998;1:11-3.
- Heptinstall S, Groenewegen WA, Spangenberg P, Loesche W. Extracts of feverfew may inhibit platelet behaviour via neutralization of sulphydryl groups. J Pharm Pharmacol 1987;39:459-65. PubMed
- Heptinstall S, White A, Williamson L, Mitchell JR. Extracts of feverfew inhibit granule secretion in blood platelets and polymorphonuclear leucocytes. Lancet 1985;1:1071-4. PubMed
- Makheja AN, Bailey JM. A platelet phospholipase inhibitor from the medicinal herb feverfew (Tanacetum parthenium). Prostaglandins Leukot Med 1982;8:653-60.
- Groenewegen WA, Heptinstall S. A comparison of the effects of an extract of feverfew and parthenolide, a component of feverfew, on human platelet activity in-vitro. J Pharm Pharmacol 1990;42:553-7. PubMed
- Heptinstall S, Groenewegen WA, Spangenberg P, Losche W. Inhibition of platelet behaviour by feverfew: a mechanism of action involving sulphydryl groups. Folia Haematol Int Mag Klin Morphol Blutforsch 1988;115:447-9.
- Biggs MJ, Johnson ES, Persaud NP, Ratcliffe DM. Platelet aggregation in patients using feverfew for migraine. Lancet 1982;2:776. PubMed
- Lamminpaa A, Estlander T, Jolanki R, Kanerva L. Occupational allergic contact dermatitis caused by decorative plants. Contact Dermatitis 1996;34:330-5. PubMed
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