Drug & supplement interaction

Red Raspberry + Piroxicam

Piroxicam brand names: Feldene, Feldene Gel.

Moderate Interaction
Medically reviewed by · Updated September 2026
The bottom line Moderate

Red Raspberry has a moderate interaction with Piroxicam. Theoretically, taking red raspberry leaf with anticoagulant/antiplatelet drugs might increase the risk of bleeding.

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

Red Raspberry and Piroxicam

Here is the interaction we found between these two, with the evidence behind it.

Moderate

ANTICOAGULANT/ANTIPLATELET DRUGS

Why this applies to Piroxicam

Piroxicam falls under ANTICOAGULANT/ANTIPLATELET DRUGS — the group Red Raspberry interacts with.

Theoretically, taking red raspberry leaf with anticoagulant/antiplatelet drugs might increase the risk of bleeding.
In vitro research suggests that red raspberry leaf extract has antiplatelet activity and enhances the in vitro effects of the antiplatelet medication cangrelor. 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 gist with piroxicam (Feldene). Like other NSAIDs, piroxicam can already nudge up your bleeding risk a bit, because it affects how your platelets clump together to form clots. Red raspberry leaf has shown some mild anti-platelet activity in lab dish studies, so the concern is that stacking the two could add up and make bleeding or bruising a little more likely.

I want to be honest about how soft this evidence is. This comes from test-tube research only and has never actually been reported in people, so for most folks the occasional cup of tea is unlikely to be a problem. Still, if you take piroxicam daily, watch for easy bruising, nosebleeds, stomach upset, or dark stools, and run any regular raspberry leaf use past your pharmacist or doctor first.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Dudzinska D, Bednarska K, Boncler M, Luzak B, Watala C. The influence of Rubus idaeus and Rubus caesius leaf extracts on platelet aggregation in whole blood. Cross-talk of platelets and neutrophils. Platelets. 2016;27(5):433-9.

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

Red Raspberry Also Interacts With Other Medications

Red Raspberry has 134 moderate known drug interactions in our database — the Piroxicam one above is one of them. If you take anything else, check it against the full list below.

Moderate 134 No known interaction 2,696 (incl. Piroxicam)
Taking anything else?

Check Another of Your Medications Against Red Raspberry

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

From our Q&A

Questions About Red Raspberry or Piroxicam

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Red Raspberry or Piroxicam, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Piroxicam

This page covers Red Raspberry only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Piroxicam page lists 285 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Asarabacca (major), Beer (major), Danshen (major) and Piracetam (major).

By severity: 7 major · 242 moderate · 36 minor.

From our pharmacist’s overview on the Piroxicam page

“Piroxicam (Feldene) is a potent, long-acting NSAID for arthritis pain, and since it already carries real stomach-bleeding risk on its own, my honest read is that this page calls for genuine caution rather than a quick skim. Most of the 285 interacting supplements share a single problem: they thin the blood or blunt platelets, stacking…”

Reviewed by 2 · Jul 18, 2026

Open the Piroxicam interaction page

One more smart check

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

We hold 1,303 real supplement products containing Red Raspberry, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Red Raspberry. Your product may carry other ingredients that interact with Piroxicam too, on top of Red Raspberry — 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 Red Raspberry and Piroxicam 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 Red Raspberry
Top 25%

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

29 days ago today
Medication Piroxicam
Steady interest

#1,703 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 Red Raspberry

What is Red Raspberry?

  • Pregnancy and labor support
  • Menstrual cramps
  • Digestive upset and diarrhea
  • Sore throat and mouth rinse
  • Antioxidant support

Red raspberry leaf is a traditional herbal remedy most often used as a tea in late pregnancy and for menstrual discomfort, but solid scientific evidence for these uses is limited. It is generally considered well tolerated by most adults, but pregnant people should talk with their doctor or midwife before using it.

Read the full Red Raspberry monograph & all interactions
Medication

About Piroxicam

What Is Piroxicam Used For?

Brand names: Feldene, Feldene Gel

Piroxicam capsules are used to relieve pain, swelling, and stiffness caused by osteoarthritis and rheumatoid arthritis. It targets inflammation at the source to help improve day-to-day comfort and movement.

Piroxicam is not a cure for either condition — it manages symptoms. Your prescriber will weigh the benefits against the risks and aim for the lowest effective dose for the shortest time needed.

See full Piroxicam drug information
Keep checking

Other Drugs & Red Raspberry

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

0Major
134Moderate
0Minor
2,695No known interaction
134 Moderate 2,695 No interaction
Moderate

134 interactions

Showing 60 of 134 moderate interactions — see all 134 on the Red Raspberry page.

No interaction 2,695 drugs checked — show the list

We also checked Red Raspberry against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,695 medications checked with no known interaction — see the full Red Raspberry list.

See the full Red Raspberry interactions page
See every supplement checked against Piroxicam, ranked by severity
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

Keep exploring
Red Raspberry monograph › Uses, safety, and every drug interaction in one place Piroxicam supplement interactions › Every supplement checked against Piroxicam, ranked by severity Piroxicam drug information › The full plain-English guide to this medication Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Red Raspberry and Piroxicam Together: Common Questions

Can you take Red Raspberry with Piroxicam?
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.
How serious is the Red Raspberry and Piroxicam 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

Still Have a Question About Piroxicam and Red Raspberry?

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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.