Drug & supplement interaction

Tocotrienols + Dicloxacillin Injection

Dicloxacillin Injection brand name: Dynapen Injection.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Tocotrienols and Dicloxacillin Injection in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the label for Dicloxacillin Injection states a food rule worth keeping to, and the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Tocotrienols and Dicloxacillin Injection

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Dicloxacillin Injection and Tocotrienols in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Tocotrienols safety at a glance

Tocotrienols overall Use caution Generally well tolerated in studies, but long-term safety at supplement doses is not well established.
Pregnancy Avoid Not enough safety information, so it is best to avoid supplemental doses during pregnancy.
Breastfeeding Use caution Little is known about safety while breastfeeding, so avoid supplements unless advised by your doctor.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Dicloxacillin Injection and Tocotrienols? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Dicloxacillin Injection

Interactions in our licensed database are recorded against drug classes, not just single drug names. Dicloxacillin Injection is filed under 3 classifications — antibiotic drugs, nephrotoxic drugs, seizure threshold lowering drugs. Tocotrienols has documented interactions with 1 drug class — the most serious being anticoagulant/antiplatelet drugs (minor) — and none of Dicloxacillin Injection’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Tocotrienols Does Interact With Other Medications

Tocotrienols has 122 minor known drug interactions in our database — Dicloxacillin Injection isn’t one of them. If you take anything else, check it against the full list below.

Minor 122 No known interaction 2,708 (incl. Dicloxacillin Injection)
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.

What to actually watch for

No Interaction Found — But Data Suggests Tocotrienols and Dicloxacillin Injection May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • Itching Additional detail

    Tocotrienols

    “Topically, a cream containing 5% tocotrienols has been reported to cause mild itching in 7% of patients in one clinical study. Contact dermatitis has been reported in 33% of patients using a cream containing vitamin E as a mixture of tocopherols and tocotrienols. However, it is unclear if this effect resulted from tocopherols, tocotrienols, or the combination.”

    Tocotrienols · Natural Medicines adverse-effect record, reported in dermatitis.

    2 sources cited
    1. 99699. Khoo TL, Halim AS, Zakaria Z, Mat Saad AZ, Wu LY, Lau HY. A prospective, randomised, double-blinded trial to study the efficacy of topical tocotrienol in the prevention of hypertrophic scars. J Plast Reconstr Aesthet Surg. 2011 Jun;64(6):e137-45. Epub 201 PubMed
    2. 4721. Baumann LS, Spencer JS. The effects of topical vitamin E on the cosmetic appearance of scars. Dermatol Surg 1999;25:311-5. PubMed

    Dicloxacillin Injection

    Listed in the ADVERSE REACTIONS section of the FDA label for Dicloxacillin Injection. Read the label on DailyMed ›

  • A skin rash Additional detail

    Tocotrienols

    Recorded for Tocotrienols in the same Natural Medicines adverse-effect record shown under Itching above.

    Dicloxacillin Injection

    Listed in the ADVERSE REACTIONS section of the FDA label for Dicloxacillin Injection. Read the label on DailyMed ›

Effects for Dicloxacillin Injection come from the ADVERSE REACTIONS section of its FDA label; effects for Tocotrienols come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

How to take them

Some Dicloxacillin Injection Products Have a Food Rule — Tocotrienols Should Not Break It

At least one FDA label for a product containing Dicloxacillin Injection says to take it on an empty stomach. Most supplements — Tocotrienols included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Dicloxacillin Injection on its own and move Tocotrienols to a meal later in the day.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Dicloxacillin Injection products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

Patients weighing less than 40 kg (88 lbs) DRUG ADULTS CHILDREN Mild to Moderate Severe Mild to Moderate Severe Dicloxacillin 125 mg every 6 hours 250 mg every 6 hours 12.5 mg/kg/day 1 in equally divided doses every 6 hours 25 mg/kg/day 1 in equally divided doses every 6 hours Dicloxacillin is best absorbed when taken on an empty stomach, and should be administered at least 1 hour before or 2 hour

From the Dosage and Administration section of the FDA label we read for Dicloxacillin Injection — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Dicloxacillin Injection

This page covers Tocotrienols only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Dicloxacillin Injection page lists 39 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Asarabacca (major), Siberian Cocklebur (major), Aristolochia (moderate), Bacillus Coagulans (moderate) and Bacillus Subtilis (moderate).

By severity: 2 major · 35 moderate · 2 minor.

From our pharmacist’s overview on the Dicloxacillin Injection page

“Dicloxacillin Injection (Dynapen) is a penicillin antibiotic used against serious bacterial infections, and this list earns real caution, chiefly for its two major-rated entries. Siberian cocklebur and asarabacca can each damage the kidneys, and pairing them with other kidney-stressing substances risks compounding that harm, so I would…”

Reviewed by 2 · Jul 18, 2026

Open the Dicloxacillin Injection 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. Even though Tocotrienols itself has no known interaction with Dicloxacillin Injection, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Tocotrienols and Dicloxacillin Injection 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%

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

29 days ago today
Medication Dicloxacillin Injection
Steady interest

#1,675 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.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Tocotrienols reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Tocotrienols and Dicloxacillin Injection records this page draws on were last updated July 10, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
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.

Oil and extracts from plant seeds, bran, and fruits (such as rice bran, palm fruit, and annatto) · Softgel capsules, oil, combination vitamin E supplements

An interaction check asks whether these two react with each other — it does not ask whether Tocotrienols is a good idea for someone in your situation. Here is what our Tocotrienols record says about it on its own.

Tocotrienols: dosing

There is no official or standardized dose of tocotrienols. Amounts used in research have varied widely depending on the source and the condition being studied.The best approach is to follow the directions on the product label and not exceed the recommended amount.

From our Tocotrienols monograph — the full record covers uses, side effects and every documented interaction.

Read the full Tocotrienols monograph & all interactions
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
122Minor
2,707No known interaction
122 Minor 2,707 No interaction
Minor

122 interactions

Showing 60 of 122 minor interactions — see all 122 on the Tocotrienols page.

No interaction 2,707 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 2,707 medications checked with no known interaction — see the full Tocotrienols list.

See the full Tocotrienols interactions page
See every supplement checked against Dicloxacillin Injection, ranked by severity
Evidence & sources

Tocotrienols References

The 4 references that drive our Tocotrienols monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  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. Baumann LS, Spencer JS. The effects of topical vitamin E on the cosmetic appearance of scars. Dermatol Surg 1999;25:311-5. PubMed
  3. Khoo TL, Halim AS, Zakaria Z, Mat Saad AZ, Wu LY, Lau HY. A prospective, randomised, double-blinded trial to study the efficacy of topical tocotrienol in the prevention of hypertrophic scars. J Plast Reconstr Aesthet Surg. 2011 Jun;64(6):e137-45. Epub 201 PubMed
  4. 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

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Tocotrienols and Dicloxacillin Injection Together: Common Questions

Is it safe to take Tocotrienols with Dicloxacillin Injection?
We do not list a known interaction between Tocotrienols and Dicloxacillin Injection. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Do Tocotrienols and Dicloxacillin Injection have any of the same side effects?
Yes — our sources link each of them separately to 2 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Should I take Tocotrienols and Dicloxacillin Injection at the same time of day?
At least one FDA label for a product containing Dicloxacillin Injection says to take it on an empty stomach, and supplements are usually taken with a meal — so taking them together at breakfast is the easy mistake. Where that applies, keep Dicloxacillin Injection on its own and move Tocotrienols to a meal later in the day. Food instructions belong to the product rather than the ingredient, so check the directions on your own box. This is about absorption, not an interaction.
How was the Tocotrienols and Dicloxacillin Injection combination checked?
Interactions in our licensed database are recorded against drug classes. Dicloxacillin Injection is filed under 3 classifications, and Tocotrienols has documented interactions with 1 drug class — none of Dicloxacillin Injection's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Tocotrienols interact with any other medications?
Yes. Tocotrienols has 122 documented drug interactions in our database — Dicloxacillin Injection is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Dicloxacillin Injection interact with any supplements?
Yes. Dicloxacillin Injection has documented interactions with 39 supplements in our database — Tocotrienols is not one of them. The Dicloxacillin Injection interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Tocotrienols monograph Uses, safety profile, and every drug interaction in one place Dicloxacillin Injection supplement interactions Every supplement checked against Dicloxacillin Injection, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 4 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Dicloxacillin Injection 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.