Drug & supplement interaction

Flaxseed + Pegfilgrastim-Jmdb

Pegfilgrastim-Jmdb brand name: Fulphilabla.

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 Flaxseed and Pegfilgrastim-Jmdb 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 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

Flaxseed and Pegfilgrastim-Jmdb

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 Pegfilgrastim-Jmdb and Flaxseed 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.

Flaxseed safety at a glance

Flaxseed overall Use caution Generally safe as a food, but drink plenty of water and start with small amounts to reduce bloating and gas.
Pregnancy Possibly Unsafe When used orally. Flaxseed can have mild estrogenic effects. Theoretically, this might adversely affect pregnancy; however, there is no reliable clinical eviden... Read the full pregnancy detail
Breastfeeding Use caution Not enough reliable safety information exists for supplement doses while breastfeeding, so use caution.

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Pegfilgrastim-Jmdb and Flaxseed? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
Keep it in perspective

Flaxseed Does Interact With Other Medications

Flaxseed has 597 moderate known drug interactions in our database — Pegfilgrastim-Jmdb isn’t one of them. If you take anything else, check it against the full list below.

Moderate 597 No known interaction 2,233 (incl. Pegfilgrastim-Jmdb)
Taking anything else?

Check Another of Your Medications Against Flaxseed

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

What to actually watch for

No Interaction Found — But Data Suggests Flaxseed and Pegfilgrastim-Jmdb 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. 2 of them are worth acting on rather than waiting out — marked below.

  • A severe allergic reaction / An allergic reaction Worth acting on Additional detail

    Flaxseed

    “Orally, flaxseed is usually well-tolerated.

    Most Common Adverse Effects:

    Orally: Bloating, diarrhea, gastrointestinal complaints.

    Serious Adverse Effects (Rare):

    Orally: Severe allergic reactions such as and anaphylaxis.”

    Flaxseed · Natural Medicines adverse-effect record, reported in diarrhea.

    Pegfilgrastim-Jmdb

    Listed in the ADVERSE REACTIONS section of the FDA label for Pegfilgrastim-Jmdb. Read the label on DailyMed ›

Reported for Flaxseed but not commonly for Pegfilgrastim-Jmdb: a bowel blockage, stomach pain, constipation and bloating or gas.

Effects for Pegfilgrastim-Jmdb come from the ADVERSE REACTIONS section of its FDA label; effects for Flaxseed 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.

Special populations

Flaxseed in Pregnancy & Breastfeeding

Pregnancy Possibly Unsafe

When used orally. Flaxseed can have mild estrogenic effects. Theoretically, this might adversely affect pregnancy; however, there is no reliable clinical evidence about the effects of flaxseed on pregnancy outcomes.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

From our Q&A

Questions About Flaxseed or Pegfilgrastim-Jmdb

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Flaxseed or Pegfilgrastim-Jmdb, 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.

One more smart check

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

We hold 236 real supplement products containing Flaxseed, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Flaxseed. Even though Flaxseed itself has no known interaction with Pegfilgrastim-Jmdb, 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 Flaxseed and Pegfilgrastim-Jmdb 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 Flaxseed
Top half

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

29 days ago today
Medication Pegfilgrastim-Jmdb
Steady interest

#1,895 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 Flaxseed reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Flaxseed and Pegfilgrastim-Jmdb records this page draws on were last updated July 11, 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 Flaxseed

What is Flaxseed?

Flaxseed
  • Constipation and digestive health
  • High cholesterol
  • Heart health
  • Menopausal symptoms
  • Blood sugar support

Flaxseed is a nutritious food rich in fiber, omega-3 fats (ALA), and plant compounds called lignans. It is most reliably helpful for constipation and may modestly lower cholesterol, but evidence for many other uses is mixed or limited. It is generally safe as a food, but talk to your pharmacist or doctor before using it as a supplement, especially if you are pregnant or breastfeeding.

Linum usitatissimum · Linaceae · Seeds and seed oil · Whole seeds, ground meal, oil, capsules, powder

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

Flaxseed: dosing

There is no single official dose for flaxseed, and the right amount depends on why you are using it and the form you choose. Ground (milled) flaxseed is generally better absorbed than whole seeds, which can pass through undigested.The best approach is to follow the directions on the product label and start with a small amount, increasing slowly while drinking plenty of water.

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

Read the full Flaxseed monograph & all interactions
Keep checking

Other Drugs & Flaxseed

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

0Major
597Moderate
0Minor
2,232No known interaction
597 Moderate 2,232 No interaction
Moderate

597 interactions

Showing 60 of 597 moderate interactions — see all 597 on the Flaxseed page.

No interaction 2,232 drugs checked — show the list

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

Showing the 60 most looked-up of 2,232 medications checked with no known interaction — see the full Flaxseed list.

See the full Flaxseed interactions page
See every supplement checked against Pegfilgrastim-Jmdb, ranked by severity
Evidence & sources

Flaxseed References

The 37 references that drive our Flaxseed 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. Kolonel LN, Nomura AM, Cooney RV. Dietary fat and prostate cancer: current status. J Natl Cancer Inst 1999;91:414-28. PubMed
  2. Ramon JM, Bou R, Romea S, et al. Dietary fat intake and prostate cancer risk: a case-control study in Spain. Cancer Causes Control 2000;11:679-85. PubMed
  3. Thompson LU, Rickard SE, Cheung F, et al. Variability in anticancer lignan levels in flaxseed. Nutr Cancer 1997;27:26-30. PubMed
  4. Nordstrom DC, Honkanen VE, Nasu Y, et al. Alpha-linolenic acid in the treatment of rheumatoid arthritis. A double-blind, placebo-controlled and randomized study: flaxseed vs. safflower seed. Rheumatol Int 1995;14:231-4. PubMed
  5. Cunnane SC, Ganguli S, Menard C, et al. High alpha-linolenic acid flaxseed (Linum usitatissimum): some nutritional properties in humans. Br J Nutr 1993;69:443-53.
  6. Clark WF, Parbtani A, Huff MW, et al. Flaxseed: a potential treatment for lupus nephritis. Kidney Int 1995;48:475-80. PubMed
  7. Cunnane SC, Hamadeh MJ, Liede AC, et al. Nutritional attributes of traditional flaxseed in healthy young adults. Am J Clin Nutr 1995;61:62-8. PubMed
  8. De Stefani E, Deneo-Pellegrini H, Boffetta P, et al. Alpha-linolenic acid and risk of prostate cancer: a case-control study in Uruguay. Cancer Epidemiol Biomarkers Prev 2000;9:335-8.
  9. Giovannucci E, Rimm EB, Colditz GA, et al. A prospective study of dietary fat and risk of prostate cancer. J Natl Cancer Inst 1993;85:1571-9. PubMed
  10. Clark WF, Kortas C, Heidenheim P, et al. Flaxseed in lupus nephritis: a two-year nonplacebo-controlled crossover study. J Am Coll Nutr 2001;20:143-8. PubMed
  11. Serraino M, Thompson LU. The effect of flaxseed supplementation on early risk markers for mammary carcinogenesis. Cancer Lett 1991;60:135-42. PubMed
  12. Rickard SE, Yuan YV, Thompson LU. Plasma insulin-like growth factor I levels in rats are reduced by dietary supplementation of flaxseed or its lignan secoisolariciresinol diglycoside. Cancer Lett 2000;161:47-55. PubMed
  13. Mousavi Y, Adlercreutz H. Enterolactone and estradiol inhibit each other's proliferative effect on MCF-7 breast cancer cells in culture. J Steroid Biochem Mol Biol 1992;41:615-9.. PubMed
  14. Adlercreutz H, Fotsis T, Bannwart C, et al. Determination of urinary lignans and phytoestrogen metabolites, potential antiestrogens and anticarcinogens, in urine of women on various habitual diets. J Steroid Biochem 1986;25:791-7.. PubMed
  15. Rose DP. Dietary fiber and breast cancer. Nutr Cancer 1990;13:1-8.. 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 Flaxseed and Pegfilgrastim-Jmdb Together: Common Questions

Is it safe to take Flaxseed with Pegfilgrastim-Jmdb?
We do not list a known interaction between Flaxseed and Pegfilgrastim-Jmdb. 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 Flaxseed and Pegfilgrastim-Jmdb 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.
Does Flaxseed interact with any other medications?
Yes. Flaxseed has 597 documented drug interactions in our database — Pegfilgrastim-Jmdb is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

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

Where next

Keep Exploring

Flaxseed monograph Uses, safety profile, and every drug interaction in one place Pegfilgrastim-Jmdb supplement interactions Every supplement checked against Pegfilgrastim-Jmdb, 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 37 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

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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.