Drug & supplement interaction

Feverfew + Aspirin, Caffeine, Hydrocodone

Aspirin, Caffeine, Hydrocodone brand name: Damason-P.

Moderate Interaction
The bottom line Moderate

Aspirin, Caffeine, Hydrocodone falls into 4 drug categories that Feverfew can interact with; the most serious is rated moderate. Theoretically, feverfew might increase levels of drugs metabolized by CYP2D6.

Read the full interaction report
SeverityModerate
LikelihoodPossible
Interactions4
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Feverfew and Aspirin, Caffeine, Hydrocodone

These two interact in 4 distinct ways. Each one is explained separately below.

Why Are There 4 Interactions?

Feverfew interacts with whole categories of medication. Aspirin, Caffeine, Hydrocodone falls into 4 of those categories, so it can interact with Feverfew in 4 different ways. We’ve listed each one below — your overall risk is driven by the most serious of them (Moderate).

Moderate

CYTOCHROME P450 2D6 (CYP2D6) SUBSTRATES

1 of 4

Why this applies to Aspirin, Caffeine, Hydrocodone

Aspirin, Caffeine, Hydrocodone falls under CYTOCHROME P450 2D6 (CYP2D6) SUBSTRATES — the group Feverfew interacts with.

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.
Severity Moderate Likelihood Possible Evidence D

Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the piece that matters in this combo product: hydrocodone. Your body uses an enzyme called CYP2D6 to turn hydrocodone into its stronger painkilling form. Lab studies hint that feverfew might slow that enzyme down. If that happened, you could actually get a bit less pain relief from the hydrocodone, since less of it gets switched into the active form. The aspirin and caffeine parts aren't really affected here.

Now, the honest part: this is only seen in test-tube and animal research, never confirmed in real people, so I wouldn't lose sleep over it. Still, if you're using feverfew for migraines and taking this for pain, mention it to your pharmacist or doctor so they can keep an eye on how well your pain is controlled.

References
  1. Unger M, Frank A. Simultaneous determination of the inhibitory potency of herbal extracts on the activity of six major cytochrome P450 enzymes using liquid chromatography/mass spectrometry and automated online extraction. Rapid Commun Mass Spectrom 2004;1 PubMed
Moderate

CYTOCHROME P450 1A2 (CYP1A2) SUBSTRATES

2 of 4

Aspirin, Caffeine, Hydrocodone also falls under 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.
Severity Moderate Likelihood Possible Evidence D

Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the piece that lines up with this concern: the caffeine in your Damason-P combo is cleared by a liver enzyme called CYP1A2. In test-tube studies, feverfew appears to slow that enzyme down. If it does the same thing in people, caffeine could hang around a little longer, which might leave you feeling jittery, restless, or wide awake at night, with a faster heartbeat.

I want to be honest about how thin this evidence is. It comes only from lab work, and nothing like it has actually been seen in real patients. Feverfew shouldn't meaningfully change the aspirin or hydrocodone parts. One separate note: both feverfew and aspirin can nudge bleeding risk, so mention that too. Run this past your pharmacist or doctor before combining them.

References
  1. Unger M, Frank A. Simultaneous determination of the inhibitory potency of herbal extracts on the activity of six major cytochrome P450 enzymes using liquid chromatography/mass spectrometry and automated online extraction. Rapid Commun Mass Spectrom 2004;1 PubMed
Moderate

CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES

3 of 4

Aspirin, Caffeine, Hydrocodone also falls under 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.
Severity Moderate Likelihood Possible Evidence D

Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

This combination product pairs aspirin and caffeine with hydrocodone, an opioid pain reliever that your liver activates and processes partly through an enzyme called CYP3A4. Lab studies hint that feverfew may slow that enzyme down. If that happened in real life, hydrocodone could build up a bit, which might mean more drowsiness, dizziness, constipation, nausea, or slowed breathing.

Here's the honest part: this is only seen in test-tube and animal research, and it has not been reported in actual people. So I wouldn't lose sleep over it. Still, since opioids carry real risks, it's worth a quick chat with your pharmacist or doctor before adding feverfew, especially if you ever feel unusually sleepy or foggy.

References
  1. Unger M, Frank A. Simultaneous determination of the inhibitory potency of herbal extracts on the activity of six major cytochrome P450 enzymes using liquid chromatography/mass spectrometry and automated online extraction. Rapid Commun Mass Spectrom 2004;1 PubMed
  2. Sil'vestrov VP, Kinitin AV, and Chesnokova, IV. [Immunological and metabolic disorders and the means for their correction in patients with chronic bronchitis]. Ter.Arkh. 1991;63:7-11.
Moderate

ANTICOAGULANT/ANTIPLATELET DRUGS

4 of 4

Aspirin, Caffeine, Hydrocodone also falls under 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).
Severity Moderate Likelihood Possible Evidence D

Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

The piece of this combo pill that matters here is the aspirin. Aspirin already makes your platelets less sticky, which is how it thins the blood a bit. Feverfew may do something similar in lab studies, so stacking the two could, in theory, add up and raise your chance of bleeding or bruising. Think easy bruising, nosebleeds, bleeding gums, or stomach upset that doesn't quit.

To be fair, this concern is mostly theoretical, based on lab work and a single case report, not strong human studies. An occasional dose of feverfew likely isn't a big deal, but regular, concentrated supplement doses are worth a quick chat with your pharmacist or doctor before you start, especially if you bleed or bruise easily.

References
  1. Awang DVC. Prescribing therapeutic feverfew (Tancetum pathrnium (L.) Schultz Bip., syn. Chrysanthemumparthenium (L.) Bernh). Int Med 1998;1:11-3.
  2. 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
  3. 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
  4. Makheja AN, Bailey JM. A platelet phospholipase inhibitor from the medicinal herb feverfew (Tanacetum parthenium). Prostaglandins Leukot Med 1982;8:653-60.
  5. 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
  6. 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.
  7. Biggs MJ, Johnson ES, Persaud NP, Ratcliffe DM. Platelet aggregation in patients using feverfew for migraine. Lancet 1982;2:776. PubMed
  8. Alenzi KA, Alharbi FH, Tawhari FM, Fradees GS. Alteration of Coagulation Test Results and Vaginal Bleeding Associated With the Use of Feverfew (Tanacetum parthenium). J Med Cases 2021;12(1):9-12.

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Feverfew Also Interacts With Other Medications

Feverfew has 928 moderate known drug interactions in our database — the Aspirin, Caffeine, Hydrocodone one above is among them. If you take anything else, check it against the full list below.

Taking anything else?

Check Another of Your Medications Against Feverfew

Covers the 2,830 medications we’ve checked against Feverfew. Pick one to open its full report.

Everything else you take

See Every Supplement That Interacts With Aspirin, Caffeine, Hydrocodone

This page covers Feverfew only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Aspirin, Caffeine, Hydrocodone page lists 398 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Asarabacca (major), Beer (major) and Danshen (major).

By severity: 17 major · 334 moderate · 47 minor.

From our pharmacist’s overview on the Aspirin, Caffeine, Hydrocodone page

“Damason-P packs three drugs into one tablet, the opioid hydrocodone, aspirin, and caffeine, so a supplement can collide with any one of them, and its list of 398 interacting ingredients earns real respect. More than 200 of those can add to aspirin's bleeding risk, while 78 can deepen the opioid's sedation.”

Reviewed by 2 · Jul 18, 2026

Open the Aspirin, Caffeine, Hydrocodone interaction page

One more smart check

Taking Feverfew as Part of a Dietary Supplement Product? Check It for Interactions

We hold 520 real supplement products containing Feverfew, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Feverfew. Your product may carry other ingredients that interact with Aspirin, Caffeine, Hydrocodone too, on top of Feverfew — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Feverfew and Aspirin, Caffeine, Hydrocodone Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Feverfew
Top 25%

#325 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Aspirin, Caffeine, Hydrocodone
Steady interest

#1,948 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Supplement

About Feverfew

What is Feverfew?

Feverfew
  • Migraine prevention
  • Headache
  • Fever (traditional)
  • Arthritis and joint pain
  • Menstrual discomfort

Feverfew is a daisy-family herb best known for migraine prevention, where some studies suggest it may modestly lower how often migraines occur, though the evidence is mixed. It is generally well tolerated for short-term use in most adults but should be avoided during pregnancy and breastfeeding and by people allergic to ragweed and related plants. Talk to your pharmacist or doctor before starting it.

Read the full Feverfew monograph & all interactions
Keep checking

Other Drugs & Feverfew

Browse every other medication we’ve checked against Feverfew — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
928Moderate
0Minor
1,901No known interaction
Moderate

928 interactions

Showing 60 of 928 moderate interactions — see all 928 on the Feverfew page.

No interaction 1,901 drugs checked — show the list
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

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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Pharmacist Counseling Corner

Taking Feverfew and Aspirin, Caffeine, Hydrocodone Together: Common Questions

Can you take Feverfew with Aspirin, Caffeine, Hydrocodone?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
Why are there 4 interactions listed for Feverfew and Aspirin, Caffeine, Hydrocodone?
Aspirin, Caffeine, Hydrocodone belongs to more than one drug category, and Feverfew interacts with each of those categories a little differently. We list every one so nothing is missed — your overall risk is driven by the most serious of them.
How serious is the Feverfew and Aspirin, Caffeine, Hydrocodone interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

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

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.