Drug & supplement interaction

Tocotrienols + Dalteparin

Dalteparin brand name: Fragmin.

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

Tocotrienols has a minor interaction with Dalteparin. Concomitant use of tocotrienols with anticoagulant or antiplatelet agents might increase the risk of bleeding.

Read the full interaction report
SeverityMinor
LikelihoodUnlikely
EvidenceB
What do Severity, Likelihood & Evidence mean?
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Interaction report

Tocotrienols and Dalteparin

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

Minor

ANTICOAGULANT/ANTIPLATELET DRUGS

Why this applies to Dalteparin

Dalteparin falls under ANTICOAGULANT/ANTIPLATELET DRUGS — the group Tocotrienols interacts with.

Concomitant use of tocotrienols with anticoagulant or antiplatelet agents might increase the risk of bleeding. However, this has not been reported in humans.
Taking tocotrienols orally inhibits experimentally-induced platelet aggregation in humans. Theoretically tocotrienols might increase the risk of bleeding if taken with antiplatelet or anticoagulant drugs. However, tocotrienols 400-800 mg daily have been used with aspirin and/or clopidogrel for 1 year with no clear cumulative antiplatelet effects and no reports of bleeding.
Severity Minor Likelihood Unlikely Evidence B

Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans..

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

Here's the gist: dalteparin (Fragmin) is an injectable blood thinner that lowers your blood's ability to clot. Tocotrienols, a form of vitamin E, can mildly slow down how your platelets stick together. Stack two things that both nudge you toward thinner blood, and in theory you could see a little more bleeding, things like easier bruising, nosebleeds, bleeding gums, or blood that takes longer to stop.

I want to be honest about the evidence, though. This concern is largely theoretical. In real studies, people took fairly high doses (400 to 800 mg daily) alongside other blood thinners for a year without clear bleeding problems. So the risk looks low. Still, since you're already on a blood thinner, please run any tocotrienol supplement past your pharmacist or doctor first.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Mensink RP, van Houwelingen AC, Kromhout D, Hornstra G. A vitamin E concentrate rich in tocotrienols had no effect on serum lipids, lipoproteins, or platelet function in men with mildly elevated serum lipid concentrations. Am J Clin Nutr 1999;69:213-9. PubMed
  2. Slivka A, Rink C, Paoletto D, Sen CK. Platelet function in stroke/transient ischemic attack patients treated with tocotrienol. FASEB J. 2020;34(9):11838-11843. PubMed

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

Tocotrienols Also Interacts With Other Medications

Tocotrienols has 121 minor known drug interactions in our database — the Dalteparin one above is one of them. If you take anything else, check it against the full list below.

Minor 121 No known interaction 2,709 (incl. Dalteparin)
Taking anything else?

Check Another of Your Medications Against Tocotrienols

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

Everything else you take

See Every Supplement That Interacts With Dalteparin

This page covers Tocotrienols only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Dalteparin page lists 218 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Danshen (major), Piracetam (major), Aconite (moderate) and Allspice (moderate).

By severity: 3 major · 190 moderate · 25 minor.

From our pharmacist’s overview on the Dalteparin page

“Dalteparin (Fragmin) is an injectable blood thinner used to prevent and treat dangerous clots, which is exactly why this list warrants real vigilance, and nearly all 218 ingredients on it thin the blood too. They are herbs and extracts with clot-inhibiting or antiplatelet effects of their own, so stacking them on dalteparin can push bl…”

Reviewed by 2 · Jul 18, 2026

Open the Dalteparin interaction page

One more smart check

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

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

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

29 days ago today
Medication Dalteparin
Top half

#761 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 Tocotrienols

What is Tocotrienols?

Tocotrienols
  • Heart and cholesterol support
  • Antioxidant support
  • Liver health (fatty liver)
  • Bone health
  • Brain and nerve protection

Tocotrienols are a less common form of vitamin E with strong antioxidant activity studied mostly for cholesterol, liver, and heart health. Early research is interesting but far from conclusive, and a standard dose is not established. They are generally well tolerated, but talk with your pharmacist or doctor before using them, especially during pregnancy or if you take blood thinners.

Read the full Tocotrienols monograph & all interactions
Medication

About Dalteparin Injection

What Is Dalteparin Injection Used For?

Brand name: Fragmin

Fragmin (dalteparin) injection is used to prevent blood clots (deep vein thrombosis, or DVT) in people having hip replacement or abdominal surgery, and in hospitalized patients who are largely immobile due to acute illness. It is also used to reduce ischemic complications — meaning clot-related events — in people with unstable angina or a type of heart attack called non-Q-wave MI, when given alongside aspirin.

Fragmin is approved for the extended treatment of symptomatic venous thromboembolism (VTE — blood clots in the veins or lungs) in adults with cancer, to reduce the chance of clots coming back, for up to six months. It is also approved to treat symptomatic VTE in pediatric patients from birth (at least 35 weeks gestational age) onward. Fragmin is not intended for the acute (immediate emergency) treatment of VTE.

See full Dalteparin Injection drug information
Keep checking

Other Drugs & Tocotrienols

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

0Major
0Moderate
121Minor
2,708No known interaction
121 Minor 2,708 No interaction
Minor

121 interactions

Showing 60 of 121 minor interactions — see all 121 on the Tocotrienols page.

No interaction 2,708 drugs checked — show the list

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

Showing the 60 most looked-up of 2,708 medications checked with no known interaction — see the full Tocotrienols list.

See the full Tocotrienols interactions page
See every supplement checked against Dalteparin, 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
Tocotrienols monograph › Uses, safety, and every drug interaction in one place Dalteparin supplement interactions › Every supplement checked against Dalteparin, ranked by severity Dalteparin Injection 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 Tocotrienols and Dalteparin Together: Common Questions

Can you take Tocotrienols with Dalteparin?
There is only a minor interaction, which is usually not serious. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Tocotrienols and Dalteparin interaction?
We rate it Minor. This interaction is generally not clinically significant, but it remains worth noting and discussing with your pharmacist.

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

Still Have a Question About Dalteparin and Tocotrienols?

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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.