Drug & supplement interaction

Copaiba Balsam + Leflunomide

Leflunomide brand name: Arava.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Copaiba Balsam and Leflunomide 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

Copaiba Balsam and Leflunomide

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 Leflunomide and Copaiba Balsam 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 Copaiba Balsam at all — not against Leflunomide, 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.

Copaiba Balsam safety at a glance

Copaiba Balsam overall Use caution Generally tolerated in small amounts but human safety data are limited, especially for concentrated oral oil.
Pregnancy Possibly Unsafe When used orally in medicinal amounts; avoid using. Read the full pregnancy detail
Breastfeeding Possibly Unsafe When used orally in medicinal amounts; avoid using. 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 Leflunomide and Copaiba Balsam? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Copaiba Balsam and Leflunomide 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.

  • Bleeding or bruising Worth acting on Additional detail

    Copaiba Balsam

    “When applied topically, copaiba balsam can cause contact dermatitis with erythema, a papular or vesicular rash, urticaria, and petechiae. The rash may leave brown spots after healing (18).”

    Copaiba Balsam · Natural Medicines adverse-effect record, reported in dermatitis.

    1 source cited
    1. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

    Leflunomide

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

  • A skin rash reported in 13.2% of FDA reports for Leflunomide Additional detail

    Copaiba Balsam

    “Orally, copaiba balsam is well tolerated when used as a food additive. In doses of 5 grams or greater, copaiba balsam can cause serious adverse effects.

    Most Common Adverse Effects:

    Topically: Contact dermatitis.

    Serious Adverse Effects (Rare):

    Orally: Doses of 5 grams or more have been reported to cause diarrhea, shivers, stomach pain, tremor, and vomiting.”

    Copaiba Balsam · Natural Medicines adverse-effect record, reported in dermatitis.

    Leflunomide

    Listed in the ADVERSE REACTIONS section of the FDA label for Leflunomide, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

  • Stomach pain / Diarrhea / Vomiting Additional detail

    Copaiba Balsam

    “Orally, copaiba balsam in single doses of 5 grams or more has been reported to cause stomach pain, vomiting, and diarrhea (11,18).”

    Copaiba Balsam · Natural Medicines adverse-effect record, reported in diarrhea.

    2 sources cited
    1. 11. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
    2. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

    Leflunomide

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

Reported for Copaiba Balsam but not commonly for Leflunomide: hives, chills, trouble sleeping and tremor or shakiness.

Effects for Leflunomide come from the ADVERSE REACTIONS section of its FDA label; effects for Copaiba Balsam come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 104,033 voluntary FDA FAERS reports for Leflunomide that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Copaiba Balsam in Pregnancy & Breastfeeding

Pregnancy And Lactation Possibly Unsafe

When used orally in medicinal amounts; 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 Leflunomide

This page covers Copaiba Balsam only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Leflunomide page lists 59 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 Ashwagandha (moderate).

By severity: 4 major · 46 moderate · 9 minor.

From our pharmacist’s overview on the Leflunomide page

“Leflunomide (Arava) quiets rheumatoid arthritis by damping down the immune system, and its best-known danger is liver injury, so the 59 supplements and herbs on this page are worth slowing down for. Thirty-eight of them carry liver risks of their own, and of the four rated major, two are simply alcoholic drinks, while a third, Siberian…”

Reviewed by 2 · Jul 18, 2026

Open the Leflunomide interaction page

One more smart check

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

We hold 9 real supplement products containing Copaiba Balsam, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Copaiba Balsam. Even though Copaiba Balsam itself has no known interaction with Leflunomide, 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 Copaiba Balsam and Leflunomide 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 Copaiba Balsam
Steady interest

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

29 days ago today
Medication Leflunomide
Steady interest

#1,654 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 Copaiba Balsam reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Copaiba Balsam and Leflunomide 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 Copaiba Balsam

What is Copaiba Balsam?

  • Inflammation and joint pain
  • Skin wounds and irritation
  • Antimicrobial and antifungal support
  • Sore throat and respiratory comfort
  • Digestive complaints

Copaiba balsam is a resin from South American Copaifera trees, valued in traditional medicine and now popular as an essential oil and supplement, mainly for inflammation and skin concerns. Human evidence is limited, so its benefits are not well proven. Talk to a pharmacist or doctor before using it, and avoid undiluted oral use of the essential oil.

Copaifera officinalis · Fabaceae · Oleoresin (balsam) tapped from the trunk; essential oil distilled from the resin · Essential oil, oral softgels/capsules, topical creams and ointments, tinctures

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

Copaiba Balsam: dosing

There is no well-established, standardized dose for copaiba balsam. The amount in products varies widely depending on whether it is a topical cream, an oral softgel, or a pure essential oil.The safest approach is to follow the directions on the product label and not exceed them. For topical use, dilute the essential oil in a carrier oil and patch test first. Avoid taking concentrated essential oil by mouth unless a knowledgeable healthcare professional directs you to.

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

Read the full Copaiba Balsam monograph & all interactions
Medication

About Leflunomide

What Is Leflunomide Used For?

Brand name: Arava

Leflunomide tablets — sold under the brand name Arava and as generic leflunomide — are used to treat active rheumatoid arthritis (RA) in adults. Both Arava and generic leflunomide tablets are FDA-approved for this use.

Rheumatoid arthritis is an autoimmune condition in which the immune system attacks the joints, causing pain, swelling, and stiffness. Leflunomide helps calm that overactive immune response to reduce symptoms and slow joint damage.

Most-Reported Side Effects for Leflunomide

From FAERS, the FDA’s public side-effect reporting system (104,033 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Rheumatoid arthritis 25,337 reports
Arthralgia 17,395 reports
Drug intolerance 15,935 reports
Joint swelling 15,925 reports
Fatigue 15,756 reports
See full Leflunomide drug information
Keep checking

Other Drugs & Copaiba Balsam

Browse every other medication we’ve checked against Copaiba Balsam — 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 Copaiba Balsam 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 Copaiba Balsam list.

See the full Copaiba Balsam interactions page
See every supplement checked against Leflunomide, ranked by severity
Evidence & sources

Copaiba Balsam References

The 2 references that drive our Copaiba Balsam 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. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  2. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

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 Copaiba Balsam and Leflunomide Together: Common Questions

Is it safe to take Copaiba Balsam with Leflunomide?
We do not list a known interaction between Copaiba Balsam and Leflunomide. 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 Copaiba Balsam and Leflunomide 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 Leflunomide interact with any supplements?
Yes. Leflunomide has documented interactions with 59 supplements in our database — Copaiba Balsam is not one of them. The Leflunomide 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

Copaiba Balsam monograph Uses, safety profile, and every drug interaction in one place Leflunomide drug information The full plain-English guide to this medication Leflunomide supplement interactions Every supplement checked against Leflunomide, 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 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Leflunomide and Copaiba Balsam?

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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.