Drug & supplement interaction

Lemon Eucalyptus + Leucovorin Calcium

Leucovorin Calcium brand name: Wellcovorin.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Lemon Eucalyptus 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.

Know someone taking this? Share
Interaction report

Lemon Eucalyptus 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 Lemon Eucalyptus 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 Lemon Eucalyptus 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.

Lemon Eucalyptus safety at a glance

Lemon Eucalyptus overall Use caution Topical use is generally well tolerated for many people, but undiluted oil can irritate skin and it should never be swallowed.
Pregnancy Use caution Refined repellent products are often considered acceptable, but check with your doctor before using essential oils during pregnancy.
Breastfeeding Use caution Little safety data exists; use cautiously and avoid applying near the breast area.

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

Still wondering about combining Leucovorin Calcium and Lemon Eucalyptus? 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 Lemon Eucalyptus. 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. Lemon Eucalyptus’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Lemon Eucalyptus side to compare — that is a limit of the record, not a statement that Lemon Eucalyptus has no side effects.

Everything else you take

See Every Supplement That Interacts With Leucovorin Calcium

This page covers Lemon Eucalyptus 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

One more smart check

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

We hold 2 real supplement products containing Lemon Eucalyptus, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Lemon Eucalyptus. Even though Lemon Eucalyptus itself has no known interaction with Leucovorin Calcium, 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 Lemon Eucalyptus 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 Lemon Eucalyptus
Steady interest

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

29 days ago today
Medication Leucovorin Calcium
Top 25%

#537 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. Lemon Eucalyptus is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Lemon Eucalyptus reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Lemon Eucalyptus 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 Lemon Eucalyptus

What is Lemon Eucalyptus?

  • Insect repellent
  • Sore muscles and joint discomfort
  • Aromatherapy
  • Antimicrobial uses
  • Soothing minor skin irritation

Lemon eucalyptus is a tree whose leaves and oil are best known as a natural-source insect repellent. A refined version of its oil (often called OLE or PMD) has real evidence for repelling mosquitoes, but the raw essential oil should not be confused with this and can irritate skin. Talk with a pharmacist or doctor before using it, especially on children or during pregnancy.

Corymbia citriodora · Myrtaceae · Leaves and essential oil · Essential oil, insect repellent sprays and lotions, aromatherapy oil

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

Lemon Eucalyptus: dosing

There is no established standard dose for lemon eucalyptus as a supplement, and it is not meant to be taken by mouth. For insect repellent products, follow the directions on the label exactly, including how often to reapply and any age limits.If you use the essential oil on your skin, it should be diluted in a carrier oil first, and it is wise to do a small patch test.

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

Read the full Lemon Eucalyptus 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 & Lemon Eucalyptus

Browse every other medication we’ve checked against Lemon Eucalyptus — 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

Lemon Eucalyptus References

The 2 sources that drive our Lemon Eucalyptus monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Lemon Eucalyptus is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Eucalyptus oil poisoning — MedlinePlus Source
  2. Preventing Mosquito Bites — Centers for Disease Control and Prevention (CDC) Source

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 Lemon Eucalyptus and Leucovorin Calcium Together: Common Questions

Is it safe to take Lemon Eucalyptus with Leucovorin Calcium?
We do not list a known interaction between Lemon Eucalyptus 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 — Lemon Eucalyptus 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

Still Have a Question About Leucovorin Calcium and Lemon Eucalyptus?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.