Drug & supplement interaction

Dwarf Elder + Elexacaftor, Tezacaftor, Ivacaftor

Elexacaftor, Tezacaftor, Ivacaftor brand name: Trikafta.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Dwarf Elder and Elexacaftor, Tezacaftor, Ivacaftor 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

Dwarf Elder and Elexacaftor, Tezacaftor, Ivacaftor

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 Elexacaftor, Tezacaftor, Ivacaftor and Dwarf Elder 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 Dwarf Elder at all — not against Elexacaftor, Tezacaftor, Ivacaftor, 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.

Dwarf Elder safety at a glance

Dwarf Elder overall Use caution Raw or unripe parts can be toxic, and human safety data is limited.
Pregnancy Likely Unsafe When used orally in large quantities. Read the full pregnancy detail
Breastfeeding Likely Unsafe When used orally in large quantities. 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 Elexacaftor, Tezacaftor, Ivacaftor and Dwarf Elder? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Dwarf Elder and Elexacaftor, Tezacaftor, Ivacaftor 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.

  • Diarrhea Additional detail

    Dwarf Elder

    “Orally, ingestion of large quantities of any plant part of dwarf elder may be unsafe. Topically, dwarf elder seems to be well tolerated.

    Serious Adverse Effects (Rare):

    Orally: Bloody diarrhea, cyanosis, vomiting, and unconsciousness when taken in large amounts.”

    Dwarf Elder · Natural Medicines adverse-effect record, reported in diarrhea.

    “Orally, ingestion of large quantities of any plant part of dwarf elder may cause vomiting and bloody diarrhea (18).”

    Dwarf Elder · Natural Medicines adverse-effect record, reported in diarrhea.

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

    Elexacaftor, Tezacaftor, Ivacaftor

    Listed in the ADVERSE REACTIONS section of the FDA label for Elexacaftor, Tezacaftor, Ivacaftor. Read the label on DailyMed ›

  • Headache Additional detail

    Dwarf Elder

    “Orally, ingestion of large quantities of any plant part of dwarf elder may cause cyanosis, dizziness, headache, and unconsciousness (18).”

    Dwarf Elder · Natural Medicines adverse-effect record, reported in cluster headache.

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

    Elexacaftor, Tezacaftor, Ivacaftor

    Listed in the ADVERSE REACTIONS section of the FDA label for Elexacaftor, Tezacaftor, Ivacaftor. Read the label on DailyMed ›

Reported for Dwarf Elder but not commonly for Elexacaftor, Tezacaftor, Ivacaftor: dizziness and vomiting.

Effects for Elexacaftor, Tezacaftor, Ivacaftor come from the ADVERSE REACTIONS section of its FDA label; effects for Dwarf Elder 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

Dwarf Elder in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Unsafe

When used orally in large quantities.

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 Elexacaftor, Tezacaftor, Ivacaftor

This page covers Dwarf Elder only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Elexacaftor, Tezacaftor, Ivacaftor page lists 138 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Acacia Rigidula (moderate) and Adrafinil (moderate).

By severity: 3 major · 94 moderate · 41 minor.

From our pharmacist’s overview on the Elexacaftor, Tezacaftor, Ivacaftor page

“Grapefruit is the first thing I would flag for anyone taking Trikafta (elexacaftor, tezacaftor, ivacaftor). All three components of this cystic fibrosis medicine are cleared by the CYP3A4 enzyme, and grapefruit blocks that enzyme, raising drug levels and the odds of side effects.”

Reviewed by 2 · Jul 18, 2026

Open the Elexacaftor, Tezacaftor, Ivacaftor interaction page

How much people look this up

Where Dwarf Elder and Elexacaftor, Tezacaftor, Ivacaftor 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 Dwarf Elder
Top half

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

29 days ago today
Medication Elexacaftor, Tezacaftor, Ivacaftor
Steady interest

#1,863 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 Dwarf Elder reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Dwarf Elder and Elexacaftor, Tezacaftor, Ivacaftor 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 Dwarf Elder

What is Dwarf Elder?

  • Joint pain and swelling
  • Colds and respiratory complaints
  • Skin irritation (topical)
  • Constipation
  • Fluid retention

Dwarf Elder is a traditional European herb used mostly in folk medicine for joint pain, swelling, and minor ailments, but there is very little high-quality human research to confirm it works. Raw or unripe parts can be toxic and cause stomach upset, so it should be used cautiously and avoided in pregnancy and breastfeeding. Always talk to a pharmacist or doctor before trying it.

Sambucus ebulus · Adoxaceae · Leaves, roots, flowers, and berries · Tea, tincture, ointment or poultice, dried herb

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

Dwarf Elder: dosing

There is no well-established or standardized dose for dwarf elder. Traditional preparations vary widely, and product strengths differ between brands.If you use a commercial product, follow the directions on the label and do not exceed the recommended amount.

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

Read the full Dwarf Elder monograph & all interactions
Medication

About Elexacaftor, Tezacaftor, and Ivacaftor

What Is Elexacaftor, Tezacaftor, and Ivacaftor Used For?

Brand name: Trikafta

Trikafta (elexacaftor, tezacaftor, and ivacaftor) is approved to treat cystic fibrosis (CF) in adults and children aged 2 years and older who have a clinical diagnosis of CF and at least one variant in the CFTR gene that is responsive to the medication or that produces CFTR protein. If the patient's genetic type is unknown, an FDA-cleared CF genetic test should be used to confirm eligibility before starting treatment.

Trikafta is not the right choice for everyone with CF — the presence of a qualifying gene variant alone is not the only factor; a confirmed clinical diagnosis of CF is also required.

See full Elexacaftor, Tezacaftor, and Ivacaftor drug information
Keep checking

Other Drugs & Dwarf Elder

Browse every other medication we’ve checked against Dwarf Elder — 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 Dwarf Elder 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 Dwarf Elder list.

See the full Dwarf Elder interactions page
See every supplement checked against Elexacaftor, Tezacaftor, Ivacaftor, ranked by severity
Evidence & sources

Dwarf Elder References

The 1 references that drive our Dwarf Elder 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. 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 Dwarf Elder and Elexacaftor, Tezacaftor, Ivacaftor Together: Common Questions

Is it safe to take Dwarf Elder with Elexacaftor, Tezacaftor, Ivacaftor?
We do not list a known interaction between Dwarf Elder and Elexacaftor, Tezacaftor, Ivacaftor. 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 Dwarf Elder and Elexacaftor, Tezacaftor, Ivacaftor have any of the same side effects?
Yes — our sources link each of them separately to 2 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 Elexacaftor, Tezacaftor, Ivacaftor interact with any supplements?
Yes. Elexacaftor, Tezacaftor, Ivacaftor has documented interactions with 138 supplements in our database — Dwarf Elder is not one of them. The Elexacaftor, Tezacaftor, Ivacaftor 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

Dwarf Elder monograph Uses, safety profile, and every drug interaction in one place Elexacaftor, Tezacaftor, and Ivacaftor drug information The full plain-English guide to this medication Elexacaftor, Tezacaftor, Ivacaftor supplement interactions Every supplement checked against Elexacaftor, Tezacaftor, Ivacaftor, 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 Elexacaftor, Tezacaftor, Ivacaftor and Dwarf Elder?

Our pharmacists answer your medication & supplement questions — free.

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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.