Drug & supplement interaction

Cauliflower + Tamoxifen Citrate

Tamoxifen Citrate brand names: Nolvadex, Soltamox.

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

We found no known interaction between Cauliflower and Tamoxifen Citrate 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.

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Interaction report

Cauliflower and Tamoxifen Citrate

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 Tamoxifen Citrate and Cauliflower 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.

Cauliflower safety at a glance

Cauliflower overall Generally safe Cauliflower is safe and nutritious for most people when eaten as a food.
Pregnancy Generally safe Cauliflower as a normal food is considered safe in pregnancy; concentrated supplements are not well studied.
Breastfeeding Generally safe Eating cauliflower is generally safe while breastfeeding, though some parents notice it makes babies gassier.

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

Still wondering about combining Tamoxifen Citrate and Cauliflower? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Tamoxifen Citrate

Interactions in our licensed database are recorded against drug classes, not just single drug names. Tamoxifen Citrate is filed under 9 classifications — including cytochrome p450 2c9 (cyp2c9) substrates, glucuronidated drugs, qt interval-prolonging drugs. Cauliflower has documented interactions with 1 drug class — the most serious being cytochrome p450 1a2 (cyp1a2) substrates (moderate) — and none of Tamoxifen Citrate’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

Cauliflower Does Interact With Other Medications

Cauliflower has 186 moderate known drug interactions in our database — Tamoxifen Citrate isn’t one of them. If you take anything else, check it against the full list below.

Moderate 186 No known interaction 2,644 (incl. Tamoxifen Citrate)
Taking anything else?

Check Another of Your Medications Against Cauliflower

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

What to actually watch for

What Tamoxifen Citrate’s Own FDA Label Lists

This is not an interaction — none of it involves Cauliflower. These are the most notable effects listed in the ADVERSE REACTIONS section of Tamoxifen Citrate’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 10 of them are worth acting on rather than waiting out — marked below.

  • Bone thinning Worth acting on
  • A heart attack Worth acting on
  • Blood clots Worth acting on
  • Pancreatitis Worth acting on
  • Yellowing of the skin or eyes Worth acting on
  • A severe skin reaction Worth acting on
  • Chest pain Worth acting on
  • Low mood Worth acting on
  • A low platelet count Worth acting on
  • Kidney problems Worth acting on

Showing the 10 most notable of 46 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Tamoxifen Citrate. Read the label on DailyMed › Cauliflower’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Cauliflower side to compare — that is a limit of the record, not a statement that Cauliflower has no side effects.

Overlapping uses

What Tamoxifen Citrate Is Prescribed For, and What Cauliflower Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Tamoxifen Citrate is a prescription medicine with approved uses on its FDA label. Cauliflower is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Tamoxifen Citrate is prescribed for: Tamoxifen is used to treat estrogen receptor-positive metastatic breast cancer in both women and men, and as follow-up (adjuvant) therapy after surgery for early-stage breast cancer in women. It also reduces the occurrence of cancer in the opposite breast when used as adjuvant therapy. In women with ductal carcinoma in situ (DCIS — an early, non-invasive breast change) following surgery and radiation, tamoxifen lowers the risk of developing invasive breast cancer. It is also approved to reduce the risk of breast cancer in women who are at high risk but have not yet been diagnosed.

Read the rest of what Tamoxifen Citrate is prescribed for

Both Tamoxifen Citrate tablets and Soltamox oral solution share these indications.

Cauliflower has been studied for:

  • Breast cancer studied, not established Cauliflower has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Cauliflower for breast cancer

    Population research has found that higher intake of cruciferous vegetables, including broccoli, Brussels sprouts, cabbage, cauliflower, collards, and kale, is associated with a slight increase in the risk of breast cancer in premenopausal women, while higher intake of these vegetables is associated with a slight, but statistically insignificant, decrease in the risk of breast cancer in postmenopausal women.

    1 source cited
    1. 26188. Gaudet MM, Britton JA, Kabat GC, et al. Fruits, vegetables, and micronutrients in relation to breast cancer modified by menopause and hormone receptor status. Cancer Epidemiol Biomarkers Prev 2004;13(9):1485-94. DOI

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Tamoxifen Citrate on your own; if you are taking Cauliflower for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Cauliflower or Tamoxifen Citrate

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Cauliflower or Tamoxifen Citrate, 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 Tamoxifen Citrate

This page covers Cauliflower only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Tamoxifen Citrate page lists 210 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), Arsenic (major), Beer (major) and Cesium (major).

By severity: 11 major · 166 moderate · 33 minor.

From our pharmacist’s overview on the Tamoxifen Citrate page

“Tamoxifen (Nolvadex, Soltamox) often stands between a breast cancer patient and a recurrence, so the stakes on this page run higher than usual. Eleven of the 210 supplements and herbs on file carry a major rating, and those eleven deserve your attention ahead of everything else.”

Reviewed by 2 · Jul 18, 2026

Open the Tamoxifen Citrate interaction page

One more smart check

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

We hold 1,705 real supplement products containing Cauliflower, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Cauliflower. Even though Cauliflower itself has no known interaction with Tamoxifen Citrate, 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 Cauliflower and Tamoxifen Citrate 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 Cauliflower
Top 25%

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

29 days ago today
Medication Tamoxifen Citrate
Top 25%

#343 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 Cauliflower reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Cauliflower and Tamoxifen Citrate records this page draws on were last updated June 22, 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 Cauliflower

What is Cauliflower?

  • General nutrition and a low-carb vegetable
  • Source of vitamin C and fiber
  • Antioxidant support
  • Digestive and gut health
  • Part of a heart-healthy diet

Cauliflower is a nutritious cruciferous vegetable that provides vitamin C, fiber, and plant compounds called glucosinolates. As a food it is healthy and safe for most people, but there is no strong proof that cauliflower supplements treat or prevent any specific disease. Enjoy it as part of a balanced diet rather than relying on pills.

Brassica oleracea var. botrytis · Brassicaceae · Edible flower head (curd); leaves and stalk are also eaten · Fresh or frozen vegetable, cooked dishes, riced cauliflower, powder, and capsules or extracts

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

Cauliflower: dosing

There is no established medicinal dose for cauliflower. As a food, it is simply included as one of several vegetable servings in a balanced diet, and there is no specific amount you must reach to be healthy.For cauliflower powders, capsules, or extracts, follow the directions on the product label, since strengths vary widely between products and none is standardized.

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

Read the full Cauliflower monograph & all interactions
Medication

About Tamoxifen

What Is Tamoxifen Used For?

Brand names: Nolvadex, Soltamox

Tamoxifen is used to treat estrogen receptor-positive metastatic breast cancer in both women and men, and as follow-up (adjuvant) therapy after surgery for early-stage breast cancer in women. It also reduces the occurrence of cancer in the opposite breast when used as adjuvant therapy.

In women with ductal carcinoma in situ (DCIS — an early, non-invasive breast change) following surgery and radiation, tamoxifen lowers the risk of developing invasive breast cancer. It is also approved to reduce the risk of breast cancer in women who are at high risk but have not yet been diagnosed. Both Tamoxifen Citrate tablets and Soltamox oral solution share these indications.

See full Tamoxifen drug information
Keep checking

Other Drugs & Cauliflower

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

0Major
186Moderate
0Minor
2,643No known interaction
186 Moderate 2,643 No interaction
Moderate

186 interactions

Showing 60 of 186 moderate interactions — see all 186 on the Cauliflower page.

No interaction 2,643 drugs checked — show the list

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

Showing the 60 most looked-up of 2,643 medications checked with no known interaction — see the full Cauliflower list.

See the full Cauliflower interactions page
See every supplement checked against Tamoxifen Citrate, ranked by severity
Evidence & sources

Cauliflower References

The 9 references that drive our Cauliflower 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. Joshipura KJ, Ascherio A, Manson JE, et al. Fruit and vegetable intake in relation to risk of ischemic stroke. JAMA 1999;282:1233-39. PubMed
  2. Zhao H, Lin J, Grossman HB, et al. Dietary isothiocyanates, GSTM1, GSTT1, NAT2 polymorphisms and bladder cancer risk. Int J Cancer 2007;120:2208-13.
  3. Cohen, J. H., Kristal, A. R., and Stanford, J. L. Fruit and vegetable intakes and prostate cancer risk. J Natl.Cancer Inst. 1-5-2000;92(1):61-68. PubMed
  4. Michaud DS, Spiegelman D, Clinton SK, et al. Fruit and vegetable intake and incidence of bladder cancer in a male prospective cohort. J Natl Cancer Inst 1999;91(7):605-13. PubMed
  5. Feskanich D, Ziegler RG, Michaud DS, et al. Prospective study of fruit and vegetable consumption and risk of lung cancer among men and women. J Natl Cancer Inst 2000;92(22):1812-23. PubMed
  6. Chang ET, Smedby KE, Zhang SM, et al. Dietary factors and risk of non-Hodgkin lymphoma in men and women. Cancer Epidemiol Biomarkers Prev 2005;14(2):512-20. PubMed
  7. Liu S, Serdula M, Janket SJ, et al. A prospective study of fruit and vegetable intake and the risk of type 2 diabetes in women. Diabetes Care 2004;27(12):2993-6. PubMed
  8. Gaudet MM, Britton JA, Kabat GC, et al. Fruits, vegetables, and micronutrients in relation to breast cancer modified by menopause and hormone receptor status. Cancer Epidemiol Biomarkers Prev 2004;13(9):1485-94. DOI
  9. Peterson S, Schwarz Y, Li SS, et al. CYP1A2, GSTM1, and GSTT1 polymorphisms and diet effects on CYP1A2 activity in a crossover feeding trial. Cancer Epidemiol Biomarkers Prev 2009;18(11):3118-25.

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 Cauliflower and Tamoxifen Citrate Together: Common Questions

Is it safe to take Cauliflower with Tamoxifen Citrate?
We do not list a known interaction between Cauliflower and Tamoxifen Citrate. 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.
Are Cauliflower and Tamoxifen Citrate used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Cauliflower in each. That is a conversation for your prescriber, especially if Tamoxifen Citrate is being adjusted to a target.
How was the Cauliflower and Tamoxifen Citrate combination checked?
Interactions in our licensed database are recorded against drug classes. Tamoxifen Citrate is filed under 9 classifications, and Cauliflower has documented interactions with 1 drug class — none of Tamoxifen Citrate'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 Cauliflower interact with any other medications?
Yes. Cauliflower has 186 documented drug interactions in our database — Tamoxifen Citrate 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 Tamoxifen Citrate interact with any supplements?
Yes. Tamoxifen Citrate has documented interactions with 210 supplements in our database — Cauliflower is not one of them. The Tamoxifen Citrate 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

Cauliflower monograph Uses, safety profile, and every drug interaction in one place Tamoxifen drug information The full plain-English guide to this medication Tamoxifen Citrate supplement interactions Every supplement checked against Tamoxifen Citrate, 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 9 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Tamoxifen Citrate and Cauliflower?

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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.