Drug & supplement interaction

Lactoferrin + Ponesimod

Ponesimod brand name: Ponvory.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Lactoferrin and Ponesimod 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

Lactoferrin and Ponesimod

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 Ponesimod and Lactoferrin 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 Lactoferrin at all — not against Ponesimod, 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.

Lactoferrin safety at a glance

Lactoferrin overall Use caution Generally well tolerated short-term, but high-quality long-term safety data are limited.
Pregnancy Likely Safe When used orally in amounts commonly found in foods. Lactoferrin has Generally Regarded as Safe (GRAS) status in the US. Read the full pregnancy detail
Breastfeeding Likely Safe When used orally in amounts commonly found in foods. Lactoferrin has Generally Regarded as Safe (GRAS) status in the US. There is insufficient reliable informat... Read the full breastfeeding detail

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 Ponesimod and Lactoferrin? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Lactoferrin and Ponesimod May Share a Side Effect

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.

  • Tiredness Additional detail

    Lactoferrin

    “Orally, at higher doses of 7.2 grams daily, lactoferrin has been reported to cause fatigue and chills.”

    Lactoferrin · Natural Medicines adverse-effect record, reported in fatigue.

    1 source cited
    1. 13323. Okada S, Tanaka K, Sato T, et al. Dose-response trial of lactoferrin in patients with chronic hepatitis C. Jpn J Cancer Res 2002;93:1063-9. PubMed

    Ponesimod

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

Reported for Lactoferrin but not commonly for Ponesimod: a bowel blockage, constipation, diarrhea and reduced appetite.

Effects for Ponesimod come from the ADVERSE REACTIONS section of its FDA label; effects for Lactoferrin 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

Lactoferrin in Pregnancy & Breastfeeding

Pregnancy Likely Safe

When used orally in amounts commonly found in foods. Lactoferrin has Generally Regarded as Safe (GRAS) status in the US.

Pregnancy Possibly Safe

When used orally in medicinal amounts. Lactoferrin has been used with apparent safety during the second or third trimester of pregnancy at doses of up to 250 mg daily for up to 8 weeks. Also, bovine lactoferrin has been used with apparent safety throughout all trimesters of pregnancy at doses of up to 200 mg daily. There is insufficient reliable information available about the safety of intravaginal lactoferrin during pregnancy and lactation; avoid using.

Lactation Likely Safe

When used orally in amounts commonly found in foods. Lactoferrin has Generally Regarded as Safe (GRAS) status in the US. There is insufficient reliable information available about the safety of lactoferrin when used medicinally during lactation; avoid using.

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

Everything else you take

See Every Supplement That Interacts With Ponesimod

This page covers Lactoferrin only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ponesimod page lists 146 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), Cesium (major) and Ephedra (major).

By severity: 8 major · 98 moderate · 40 minor.

From our pharmacist’s overview on the Ponesimod page

“Someone managing relapsing MS with ponesimod (Ponvory) has real reason to read this list closely, since 8 of its 146 documented supplement interactions rate major. The largest group, 121 ingredients, works through CYP3A4, the liver enzyme that clears ponesimod.”

Reviewed by 2 · Jul 18, 2026

Open the Ponesimod interaction page

One more smart check

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

We hold 292 real supplement products containing Lactoferrin, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Lactoferrin. Even though Lactoferrin itself has no known interaction with Ponesimod, 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 Lactoferrin and Ponesimod 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 Lactoferrin
Top half

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

29 days ago today
Medication Ponesimod
Top half

#1,088 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 Lactoferrin reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Lactoferrin and Ponesimod 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 Lactoferrin

What is Lactoferrin?

  • Iron deficiency and anemia support
  • Immune support
  • Gut health
  • Stomach (H. pylori) infection
  • Acne
  • Diarrhea prevention in infants

Lactoferrin is an iron-binding protein found naturally in milk and other body fluids, and supplements are usually made from cow's milk or rice. It is being studied for immune support, iron levels, gut health, and infections, but the evidence is still limited and mixed for most uses. It is generally well tolerated, but talk with a pharmacist or doctor before starting it.

Protein from milk (colostrum), or made with recombinant technology · Capsules, tablets, powders; also added to some infant formulas and functional foods

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

Lactoferrin: dosing

There is no official standardized dose of lactoferrin, and the right amount can depend on the product, the form, and the reason for use. Doses used in research have varied widely.The best approach is to follow the directions on the product label and not exceed the recommended amount.

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

Read the full Lactoferrin monograph & all interactions
Medication

About Ponesimod

What Is Ponesimod Used For?

Brand name: Ponvory

Ponvory (ponesimod) is approved for adults with relapsing forms of multiple sclerosis (MS). This includes clinically isolated syndrome (a first MS episode), relapsing-remitting MS, and active secondary progressive MS.

It is not approved for children, and it is only available as an oral tablet under the brand name Ponvory.

Most-Reported Side Effects for Ponesimod

From FAERS, the FDA’s public side-effect reporting system (428 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 35 reports
Dizziness 24 reports
Dyspnea 23 reports
Headache 22 reports
Nausea 14 reports
See full Ponesimod drug information
Keep checking

Other Drugs & Lactoferrin

Browse every other medication we’ve checked against Lactoferrin — 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

Lactoferrin References

The 6 references that drive our Lactoferrin 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. Food and Drug Administration, CFSAN/Office of Food Additive Safety. Agency Response Letter GRAS Notice No. GRN 000130. 2003. Available at: http://www.cfsan.fda.gov/~rdb/opa-g130.html (Accessed 29 June 2005).
  2. Okada S, Tanaka K, Sato T, et al. Dose-response trial of lactoferrin in patients with chronic hepatitis C. Jpn J Cancer Res 2002;93:1063-9. PubMed
  3. Abu Hashim H, Foda O, Ghayaty E. Lactoferrin or ferrous salts for iron deficiency anemia in pregnancy: A meta-analysis of randomized trials. Eur J Obstet Gynecol Reprod Biol. 2017;219:45-52. PubMed
  4. Tarnow-Mordi WO, Abdel-Latif ME, Martin A, et al. The effect of lactoferrin supplementation on death or major morbidity in very low birthweight infants (LIFT): a multicentre, double-blind, randomised controlled trial. Lancet Child Adolesc Health. 2020 Jun PubMed
  5. ELFIN trial investigators group. Enteral lactoferrin supplementation for very preterm infants: a randomised placebo-controlled trial. Lancet. 2019 Feb 2;393(10170):423-433. doi: 10.1016/S0140-6736(18)32221-9.
  6. Lepanto MS, Rosa L, Cutone A, Conte MP, Paesano R, Valenti P. Efficacy of lactoferrin oral administration in the treatment of anemia and anemia of inflammation in pregnant and non-pregnant women: An interventional study. Front Immunol. 2018 Sep 21;9:2123. 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 Lactoferrin and Ponesimod Together: Common Questions

Is it safe to take Lactoferrin with Ponesimod?
We do not list a known interaction between Lactoferrin and Ponesimod. 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 Lactoferrin and Ponesimod have any of the same side effects?
Yes — our sources link each of them separately to one 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 Ponesimod interact with any supplements?
Yes. Ponesimod has documented interactions with 146 supplements in our database — Lactoferrin is not one of them. The Ponesimod 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 Ponesimod and Lactoferrin?

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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.