Drug & supplement interaction

Bovine Colostrum + Fluconazole

Fluconazole brand names: Diflucan, Diflucan Injection.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Bovine Colostrum and Fluconazole 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

Bovine Colostrum and Fluconazole

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 Fluconazole and Bovine Colostrum 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.

Worth understanding: our licensed dataset holds no drug-interaction record for Bovine Colostrum at all — not against Fluconazole, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

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.

Bovine Colostrum safety at a glance

Bovine Colostrum overall Use caution Generally well tolerated in most adults, but those with milk or dairy allergy should avoid it.
Pregnancy Use caution Not enough reliable safety data, so it is best to avoid unless your doctor approves.
Breastfeeding Use caution Safety is not well studied during breastfeeding, so use caution and ask your provider.

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

Still wondering about combining Fluconazole and Bovine Colostrum? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Bovine Colostrum and Fluconazole 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. One of them is worth acting on rather than waiting out — marked below.

  • A severe allergic reaction Worth acting on Additional detail

    Bovine Colostrum

    “Topically, there is a case report of anaphylaxis, urticaria, and itching related to bovine colostrum.”

    Bovine Colostrum · Natural Medicines adverse-effect record, reported in pruritus.

    1 source cited
    1. 101793. Porcaro F, Caminiti L, Crisafulli G, Guglielmo F, Pajno GB. Anaphylaxis to cutaneous exposure to bovine colostrum based cream. Asian Pac J Allergy Immunol. 2019;37(1):9-11.

    Fluconazole

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

  • Itching Additional detail

    Bovine Colostrum

    Recorded for Bovine Colostrum in the same Natural Medicines adverse-effect record shown under A severe allergic reaction above.

    Fluconazole

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

  • Diarrhea Additional detail

    Bovine Colostrum

    “Orally, bovine colostrum has caused nausea and vomiting in an individual with HIV-related cryptosporidiosis. In clinical trials of bovine colostrum, bloating, nausea, diarrhea, and unsettled stomach have been reported as mild in nature by a few patients with a similar rate of occurrence as those taking a whey-based control.”

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

    4 sources cited
    1. 4905. Greenberg PD, Cello JP. Treatment of severe diarrhea caused by Cryptosporidium parvum with oral bovine immunoglobulin concentrate in patients with AIDS. J Acquir Immune Defic Syndr Hum Retrovirol 1996;13:348-54. PubMed
    2. 92414. Duff WR, Chilibeck PD, Rooke JJ, Kaviani M, Krentz JR, Haines DM. The effect of bovine colostrum supplementation in older adults during resistance training. Int J Sport Nutr Exerc Metab. 2014 Jun;24(3):276-85. PubMed
    3. 101792. Sanctuary MR, Kain JN, Chen SY, et al. Pilot study of probiotic/colostrum supplementation on gut function in children with autism and gastrointestinal symptoms. PLoS One. 2019;14(1):e0210064. PubMed
    4. 114819. Halasa M, Skonieczna-Zydecka K, Machalinski B, Bühner L, Baskiewicz-Halasa M. Six Weeks of Supplementation with Bovine Colostrum Effectively Reduces URTIs Symptoms Frequency and Gravity for Up to 20 Weeks in Pre-School Children. Nutrients 2023;15(16):3626 PubMed

    “Orally, bovine colostrum has caused elevated liver function tests in HIV patients treated for infectious diarrhea.”

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

    1 source cited
    1. 4905. Greenberg PD, Cello JP. Treatment of severe diarrhea caused by Cryptosporidium parvum with oral bovine immunoglobulin concentrate in patients with AIDS. J Acquir Immune Defic Syndr Hum Retrovirol 1996;13:348-54. PubMed

    Fluconazole

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

  • Vomiting / Nausea Additional detail

    Bovine Colostrum

    Recorded for Bovine Colostrum in the same Natural Medicines adverse-effect record shown under Diarrhea above.

    Fluconazole

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

Reported for Bovine Colostrum but not commonly for Fluconazole: an allergic reaction, hives and bloating or gas.

Effects for Fluconazole come from the ADVERSE REACTIONS section of its FDA label; effects for Bovine Colostrum 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.

From our Q&A

Questions About Bovine Colostrum or Fluconazole

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

This page covers Bovine Colostrum only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Fluconazole page lists 81 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Beer (major), Siberian Cocklebur (major), Wine (major) and Adrafinil (moderate).

By severity: 4 major · 54 moderate · 23 minor.

From our pharmacist’s overview on the Fluconazole page

“Fluconazole (Diflucan) treats fungal infections, and I would pair it with supplements carefully. Nearly half of the 81 ingredients with an interaction on file, 38 of them, put extra strain on the liver, which is already busy processing the antifungal.”

Reviewed by 2 · Jul 18, 2026

Open the Fluconazole interaction page

How much people look this up

Where Bovine Colostrum and Fluconazole 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 Bovine Colostrum
Steady interest

#1,283 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Fluconazole
Top 25%

#581 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 Bovine Colostrum reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Bovine Colostrum and Fluconazole 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 Bovine Colostrum

What is Bovine Colostrum?

Bovine Colostrum
  • Immune support
  • Gut health and digestion
  • Exercise recovery
  • Diarrhea (including infectious diarrhea)
  • Anti-inflammatory support

Bovine colostrum is the nutrient-rich first milk from cows, packed with antibodies, growth factors, and protein. Early research suggests it may help with gut health, certain types of diarrhea, and immune support, but more high-quality studies are needed. It is generally well tolerated, but people with milk allergy should avoid it, and pregnant or breastfeeding women should check with a healthcare provider first.

Colostrum (the first milk produced by cows after calving) · Powder, capsules, chewable tablets, liquid

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

Bovine Colostrum: dosing

There is no official standardized dose for bovine colostrum. Studies have used a wide range of amounts depending on the product and the condition being studied, so there is no single "right" dose for everyone.The best approach is to follow the directions on the product label and not take more than recommended.

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

Read the full Bovine Colostrum monograph & all interactions
Medication

About Fluconazole

What Is Fluconazole Used For?

Brand names: Diflucan, Diflucan Injection

Fluconazole treats infections caused by Candida and Cryptococcus fungi. Diflucan tablets and oral fluconazole tablets and suspension are approved to treat vaginal yeast infections (vaginal candidiasis), thrush in the mouth or throat (oropharyngeal candidiasis), and yeast infections of the esophagus. All forms — tablets, oral suspension, and injection — are used for cryptococcal meningitis (a serious fungal brain infection). In smaller studies, fluconazole has also shown effectiveness against Candida urinary tract infections, peritonitis (infection in the abdomen), and serious systemic (bloodstream and organ) Candida infections.

Fluconazole is also used to prevent candidiasis in people undergoing bone marrow transplants who receive chemotherapy or radiation therapy. Note that vaginal candidiasis is an approved use for the tablets and Diflucan oral products, but not for the injection or oral suspension alone.

Most-Reported Side Effects for Fluconazole

From FAERS, the FDA’s public side-effect reporting system (0 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fever 4,205 reports
Nausea 3,813 reports
Diarrhea 3,614 reports
Fatigue 3,266 reports
Headache 2,930 reports
See full Fluconazole drug information
Keep checking

Other Drugs & Bovine Colostrum

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

0Major
0Moderate
0Minor
2,829No known interaction
No interaction 2,829 drugs checked — show the list
Evidence & sources

Bovine Colostrum References

The 8 references that drive our Bovine Colostrum 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. Lewis CJ. Letter to reiterate certain public health and safety concerns to firms manufacturing or importing dietary supplements that contain specific bovine tissues. FDA. Available at: www.cfsan.fda.gov/~dms/dspltr05.html.
  2. Greenberg PD, Cello JP. Treatment of severe diarrhea caused by Cryptosporidium parvum with oral bovine immunoglobulin concentrate in patients with AIDS. J Acquir Immune Defic Syndr Hum Retrovirol 1996;13:348-54. PubMed
  3. Duff WR, Chilibeck PD, Rooke JJ, Kaviani M, Krentz JR, Haines DM. The effect of bovine colostrum supplementation in older adults during resistance training. Int J Sport Nutr Exerc Metab. 2014 Jun;24(3):276-85. PubMed
  4. Sanctuary MR, Kain JN, Chen SY, et al. Pilot study of probiotic/colostrum supplementation on gut function in children with autism and gastrointestinal symptoms. PLoS One. 2019;14(1):e0210064. PubMed
  5. Porcaro F, Caminiti L, Crisafulli G, Guglielmo F, Pajno GB. Anaphylaxis to cutaneous exposure to bovine colostrum based cream. Asian Pac J Allergy Immunol. 2019;37(1):9-11.
  6. Yan X, Pan X, Ding L, et al. Bovine colostrum to supplement the first feeding of very preterm infants: The PreColos randomized controlled trial. Clin Nutr 2023;42(8):1408-1417. PubMed
  7. Halasa M, Skonieczna-Zydecka K, Machalinski B, Bühner L, Baskiewicz-Halasa M. Six Weeks of Supplementation with Bovine Colostrum Effectively Reduces URTIs Symptoms Frequency and Gravity for Up to 20 Weeks in Pre-School Children. Nutrients 2023;15(16):3626 PubMed
  8. Simonsen MB, Kappel SS, Aunsholt L, Möller S, Sangild PT, Zachariassen G. Mineral supplementation for very preterm infants fed fortified human milk. J Pediatr Gastroenterol Nutr 2024;78(6):1389-1397. 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 Bovine Colostrum and Fluconazole Together: Common Questions

Is it safe to take Bovine Colostrum with Fluconazole?
We do not list a known interaction between Bovine Colostrum and Fluconazole. 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 Bovine Colostrum and Fluconazole have any of the same side effects?
Yes — our sources link each of them separately to 5 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 Fluconazole interact with any supplements?
Yes. Fluconazole has documented interactions with 81 supplements in our database — Bovine Colostrum is not one of them. The Fluconazole interaction page linked on this page lists every one, ranked by severity.

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

Still Have a Question About Fluconazole and Bovine Colostrum?

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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.