Drug & supplement interaction

Bredesen Protocol + Leucovorin Calcium

Leucovorin Calcium brand name: Wellcovorin.

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 Bredesen Protocol and Leucovorin Calcium 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

Bredesen Protocol and Leucovorin Calcium

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 Leucovorin Calcium and Bredesen Protocol 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 Bredesen Protocol at all — not against Leucovorin Calcium, 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.

Bredesen Protocol safety at a glance

Bredesen Protocol overall Use caution It involves many supplements and major lifestyle changes that should be supervised by a clinician.
Pregnancy Avoid The program is not intended for pregnancy and includes supplements not studied in pregnant people.
Breastfeeding Avoid Safety while breastfeeding has not been established for this multi-supplement program.

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

Still wondering about combining Leucovorin Calcium and Bredesen Protocol? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Leucovorin Calcium’s Own FDA Label Lists

This is not an interaction — none of it involves Bredesen Protocol. These are the most notable effects listed in the ADVERSE REACTIONS section of Leucovorin Calcium’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. 5 of them are worth acting on rather than waiting out — marked below.

  • A low white blood cell count Worth acting on mentioned in 5.8% of FDA reports for Leucovorin Calcium
  • A low platelet count Worth acting on
  • Kidney problems Worth acting on
  • Hives Worth acting on
  • A higher chance of infection Worth acting on
  • Mouth irritation or sores
  • Hair loss
  • Reduced appetite
  • Constipation
  • Diarrhea mentioned in 9.5% of FDA reports for Leucovorin Calcium

Showing the 10 most notable of 14 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 Leucovorin Calcium. Read the label on DailyMed › Where a percentage is shown, it is the share of 19,003 voluntary FDA FAERS reports for Leucovorin Calcium that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Bredesen Protocol’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Bredesen Protocol side to compare — that is a limit of the record, not a statement that Bredesen Protocol has no side effects.

Everything else you take

See Every Supplement That Interacts With Leucovorin Calcium

This page covers Bredesen Protocol only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Leucovorin Calcium page lists 17 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 9 minor.

Open the Leucovorin Calcium interaction page

How much people look this up

Where Bredesen Protocol and Leucovorin Calcium 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 Bredesen Protocol
Steady interest

#1,291 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Leucovorin Calcium
Top 25%

#430 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 Bredesen Protocol reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Bredesen Protocol and Leucovorin Calcium 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 Bredesen Protocol

What is Bredesen Protocol?

  • Early memory loss
  • Mild cognitive impairment
  • Early Alzheimer's disease
  • Cognitive decline prevention
  • Brain health support

The Bredesen Protocol is not a herb or single supplement—it is a complex, individualized program of diet, exercise, sleep, stress reduction, and many supplements aimed at slowing or reversing cognitive decline. Rigorous, large, controlled studies are lacking, so its benefits remain unproven, and it should only be tried under medical supervision. Talk with your doctor or pharmacist before starting any part of it.

Multi-part lifestyle and supplement program (diet, exercise, sleep, supplements, and other interventions)

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

Bredesen Protocol: dosing

There is no single standard dose for the Bredesen Protocol because it is a personalized, multi-part program, not one product. The supplements, diet, and other steps are meant to be tailored to each person based on testing and a practitioner's guidance.If you choose to explore it, do so under the supervision of a qualified clinician and review every supplement with your pharmacist to check the dose and avoid duplication or excess. Always follow the label on any product you take and do not exceed recommended amounts.

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

Read the full Bredesen Protocol monograph & all interactions
Medication

About Leucovorin

What Is Leucovorin Used For?

Brand name: Wellcovorin

Leucovorin is used to reduce the harmful effects of methotrexate when the body is slow to clear it, and to counteract accidental overdoses of drugs that block folic acid (called folic acid antagonists or DHFR inhibitors). It is also used to treat cerebral folate transport deficiency (FOLR1-CFTD), a rare genetic condition that prevents the brain from receiving enough folate.

The injectable forms — including leucovorin calcium injection and Vykoura — are additionally approved for rescue after high-dose methotrexate therapy, for treatment of megaloblastic anemia (a type of anemia caused by low folic acid) when oral treatment isn't possible, and for use alongside fluorouracil in treating metastatic colorectal cancer. Leucovorin calcium injection is specifically indicated for rescue after high-dose methotrexate in osteosarcoma.

Most-Reported Side Effects for Leucovorin Calcium

From FAERS, the FDA’s public side-effect reporting system (19,003 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Diarrhea 1,799 reports
Nausea 1,388 reports
Vomiting 1,135 reports
Neutropenia 1,094 reports
Fever 1,011 reports
See full Leucovorin drug information
Keep checking

Other Drugs & Bredesen Protocol

Browse every other medication we’ve checked against Bredesen Protocol — 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
2,829 No interaction
No interaction 2,829 drugs checked — show the list

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

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Bredesen Protocol list.

See the full Bredesen Protocol interactions page
See every supplement checked against Leucovorin Calcium, ranked by severity
Evidence & sources

Bredesen Protocol References

The 1 references that drive our Bredesen Protocol 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. Bredesen DE. Reversal of cognitive decline: a novel therapeutic program. Aging (Albany NY). 2014;6(9):707-17. 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 Bredesen Protocol and Leucovorin Calcium Together: Common Questions

Is it safe to take Bredesen Protocol with Leucovorin Calcium?
We do not list a known interaction between Bredesen Protocol and Leucovorin Calcium. 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.
Does Leucovorin Calcium interact with any supplements?
Yes. Leucovorin Calcium has documented interactions with 17 supplements in our database — Bredesen Protocol is not one of them. The Leucovorin Calcium 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

Bredesen Protocol monograph Uses, safety profile, and every drug interaction in one place Leucovorin drug information The full plain-English guide to this medication Leucovorin Calcium supplement interactions Every supplement checked against Leucovorin Calcium, 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 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Leucovorin Calcium and Bredesen Protocol?

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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.