Drug & supplement interaction

Buckhorn Plantain + Daratumumab

Daratumumab brand name: Darzalex.

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 Buckhorn Plantain and Daratumumab 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

Buckhorn Plantain and Daratumumab

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 Daratumumab and Buckhorn Plantain 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 Buckhorn Plantain at all — not against Daratumumab, 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.

Buckhorn Plantain safety at a glance

Buckhorn Plantain overall Use caution Generally considered low-risk for short-term use, but human safety data are limited.
Pregnancy Likely Unsafe When used orally or topically. Some evidence suggests buckhorn plantain affects muscle tone of the uterus. Read the full pregnancy detail
Breastfeeding Avoid Safety while breastfeeding is unknown, so avoid unless cleared by your provider.

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 Daratumumab and Buckhorn Plantain? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Daratumumab’s Own FDA Label Lists

This is not an interaction — none of it involves Buckhorn Plantain. These are the most notable effects listed in the ADVERSE REACTIONS section of Daratumumab’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. 6 of them are worth acting on rather than waiting out — marked below.

  • Dehydration Worth acting on
  • A low white blood cell count Worth acting on mentioned in 4.9% of FDA reports for Daratumumab
  • A low platelet count Worth acting on
  • Anemia Worth acting on
  • Shortness of breath Worth acting on
  • A higher chance of infection Worth acting on mentioned in 5.0% of FDA reports for Daratumumab
  • Numbness or tingling mentioned in 3.7% of FDA reports for Daratumumab
  • Cough
  • Fever
  • Constipation

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 Daratumumab. Read the label on DailyMed › Where a percentage is shown, it is the share of 42,488 voluntary FDA FAERS reports for Daratumumab that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Buckhorn Plantain’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Buckhorn Plantain side to compare — that is a limit of the record, not a statement that Buckhorn Plantain has no side effects.

Special populations

Buckhorn Plantain in Pregnancy & Breastfeeding

Pregnancy Likely Unsafe

When used orally or topically. Some evidence suggests buckhorn plantain affects muscle tone of the uterus.

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

One more smart check

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

We hold 4 real supplement products containing Buckhorn Plantain, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Buckhorn Plantain. Even though Buckhorn Plantain itself has no known interaction with Daratumumab, 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 Buckhorn Plantain and Daratumumab 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 Buckhorn Plantain
Steady interest

#1,429 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Daratumumab
Steady interest

#2,349 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 Buckhorn Plantain reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Buckhorn Plantain and Daratumumab 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 Buckhorn Plantain

What is Buckhorn Plantain?

Buckhorn Plantain
  • Cough and sore throat
  • Respiratory irritation
  • Wound and skin care
  • Digestive upset
  • Mild inflammation

Buckhorn plantain is a common weed-like herb used traditionally for coughs, sore throats, and minor skin wounds. Some lab and small studies suggest it has soothing and mild anti-inflammatory effects, but high-quality human evidence is limited. It is generally considered low-risk for short-term use, but pregnant and breastfeeding people should be cautious and check with a healthcare provider.

Plantago lanceolata · Plantaginaceae · Leaves (above-ground parts) · Tea, tincture, syrup, capsules, topical creams or ointments, fresh crushed leaves

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

Buckhorn Plantain: dosing

There is no official standardized dose for buckhorn plantain. Traditional preparations include teas made from the dried leaves, syrups, tinctures, and topical products.Because product strength varies a lot between brands and forms, the best approach is to follow the directions on the product label.

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

Read the full Buckhorn Plantain monograph & all interactions
Medication

About Daratumumab Injection

What Is Daratumumab Injection Used For?

Brand name: Darzalex

Darzalex is approved for adult patients with multiple myeloma. It can be used in newly diagnosed patients who are not candidates for a stem cell transplant, in newly diagnosed patients who are eligible for a stem cell transplant (when used with certain combination regimens), and in patients whose myeloma has returned or stopped responding to earlier treatments.

Depending on how far the disease has progressed and which medicines a patient has tried before, Darzalex may be given alone or combined with other drugs such as lenalidomide, bortezomib, thalidomide, carfilzomib, pomalidomide, melphalan, and dexamethasone. Each combination has its own specific set of criteria — your oncologist will determine which regimen fits your situation.

Most-Reported Side Effects for Daratumumab

From FAERS, the FDA’s public side-effect reporting system (42,488 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Plasma cell myeloma 3,971 reports
Infusion related reaction 2,703 reports
Pneumonia 2,104 reports
Neutropenia 2,097 reports
Fatigue 1,962 reports
See full Daratumumab Injection drug information
Keep checking

Other Drugs & Buckhorn Plantain

Browse every other medication we’ve checked against Buckhorn Plantain — 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 Buckhorn Plantain 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 Buckhorn Plantain list.

See the full Buckhorn Plantain interactions page
See every supplement checked against Daratumumab, ranked by severity
Evidence & sources

Buckhorn Plantain References

The 1 references that drive our Buckhorn Plantain 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. Shipochliev T. Uterotonic action of extracts from a group of medicinal plants. Vet Med Nauki 1981;18:94-8.

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 Buckhorn Plantain and Daratumumab Together: Common Questions

Is it safe to take Buckhorn Plantain with Daratumumab?
We do not list a known interaction between Buckhorn Plantain and Daratumumab. 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.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Buckhorn Plantain monograph Uses, safety profile, and every drug interaction in one place Daratumumab Injection drug information The full plain-English guide to this medication Daratumumab supplement interactions Every supplement checked against Daratumumab, 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 Daratumumab and Buckhorn Plantain?

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.