Drug & supplement interaction

Honeysuckle + Fludarabine

Fludarabine brand name: Fludara.

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 Honeysuckle and Fludarabine 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

Honeysuckle and Fludarabine

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 Fludarabine and Honeysuckle 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.

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.

Honeysuckle safety at a glance

Honeysuckle overall Use caution Often used as a tea with few reported problems, but high-quality safety data in humans is limited.
Pregnancy Avoid Not enough safety information, so it is best avoided during pregnancy.
Breastfeeding Avoid Not enough safety information, so it is best avoided while breastfeeding.

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

Still wondering about combining Fludarabine and Honeysuckle? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Fludarabine

Interactions in our licensed database are recorded against drug classes, not just single drug names. Fludarabine is filed under a single classification — oral drugs. Honeysuckle has documented interactions with 1 drug class — the most serious being anticoagulant/antiplatelet drugs (moderate) — and none of Fludarabine’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Honeysuckle Does Interact With Other Medications

Honeysuckle has 122 moderate known drug interactions in our database — Fludarabine isn’t one of them. If you take anything else, check it against the full list below.

Moderate 122 No known interaction 2,708 (incl. Fludarabine)
Taking anything else?

Check Another of Your Medications Against Honeysuckle

Covers the 2,830 medications we’ve checked against Honeysuckle. Pick one to open its full report.

What to actually watch for

No Interaction Found — But Data Suggests Honeysuckle and Fludarabine May Share a Side Effect

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.

  • A skin rash Additional detail

    Honeysuckle

    “Topically, applying honeysuckle to the skin has been associated with contact dermatitis in a case report. Orally, a case of biopsy-confirmed allergic drug eruption is reported in a young adult male after taking honeysuckle granules 30 grams over a 24-hour period. Symptoms resolved with discontinuation of honeysuckle and 2-weeks of antihistamine and glucocorticoid therapy.”

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

    2 sources cited
    1. 12611. Webster RM. Honeysuckle contact dermatitis. Cutis 1993;51:424.
    2. 112866. Zhou LF, Lu R. Compound-honeysuckle-induced drug eruption with special manifestations: A case report. World J Clin Cases 2022;10(22):8018-8024. PubMed

    Fludarabine

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

Effects for Fludarabine come from the ADVERSE REACTIONS section of its FDA label; effects for Honeysuckle 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.

Everything else you take

See Every Supplement That Interacts With Fludarabine

This page covers Honeysuckle only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Fludarabine 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.

From our pharmacist’s overview on the Fludarabine page

“Someone taking fludarabine (Fludara) for leukemia is often dealing with nausea and digestive trouble at the same time, and that is exactly where this list bites. All 17 supplements and herbs on file interact the same basic way, by changing how much of an oral dose actually gets absorbed, and one of them, activated charcoal, rates major…”

Reviewed by 2 · Jul 18, 2026

Open the Fludarabine interaction page

One more smart check

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

We hold 41 real supplement products containing Honeysuckle, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Honeysuckle. Even though Honeysuckle itself has no known interaction with Fludarabine, 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 Honeysuckle and Fludarabine 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 Honeysuckle
Top half

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

29 days ago today
Medication Fludarabine
Steady interest

#1,879 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 Honeysuckle reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Honeysuckle and Fludarabine 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 Honeysuckle

What is Honeysuckle?

  • Colds and sore throat
  • Fever
  • Inflammation
  • Skin rashes and sores
  • Digestive upset

Honeysuckle, especially Japanese honeysuckle flower (Lonicera japonica), is a staple of traditional Chinese medicine used mainly for colds, sore throat, and inflammation. Modern human evidence for these uses is limited, so it should be seen as a traditional remedy rather than a proven treatment. It is generally well tolerated as a tea, but talk to your pharmacist or doctor before using it, especially if you are pregnant, nursing, or taking other medicines.

Lonicera japonica · Caprifoliaceae · Flowers (flower buds), and sometimes stems and leaves · Tea, dried flower buds, capsules, tinctures, topical preparations, and combination herbal formulas

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

Honeysuckle: dosing

There is no standard, well-established dose for honeysuckle. The right amount depends on the form (tea, capsule, tincture) and the specific product.The safest approach is to follow the directions on the product label and not take more than recommended.

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

Read the full Honeysuckle monograph & all interactions
Medication

About Fludarabine Injection

What Is Fludarabine Injection Used For?

Brand name: Fludara

Fludarabine Injection is used to treat adult patients with B-cell chronic lymphocytic leukemia (CLL) — a cancer of the blood and bone marrow — whose disease did not respond to, or got worse during, at least one prior standard chemotherapy regimen containing an alkylating agent.

It is not established as effective for CLL patients who have never been treated or whose disease is not yet refractory (not responding to treatment). Your doctor will determine whether this treatment is appropriate based on your treatment history.

See full Fludarabine Injection drug information
Keep checking

Other Drugs & Honeysuckle

Browse every other medication we’ve checked against Honeysuckle — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
122Moderate
0Minor
2,707No known interaction
122 Moderate 2,707 No interaction
Moderate

122 interactions

Showing 60 of 122 moderate interactions — see all 122 on the Honeysuckle page.

No interaction 2,707 drugs checked — show the list

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

Showing the 60 most looked-up of 2,707 medications checked with no known interaction — see the full Honeysuckle list.

See the full Honeysuckle interactions page
See every supplement checked against Fludarabine, ranked by severity
Evidence & sources

Honeysuckle References

The 3 references that drive our Honeysuckle 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. Chang WC, Hsu FL. Inhibition of platelet activation and endothelial cell injury by polyphenolic compounds isolated from Lonicera japonica Thunb. Prostaglandins Leukot Essent Fatty Acids 1992;45:307-12. PubMed
  2. Webster RM. Honeysuckle contact dermatitis. Cutis 1993;51:424.
  3. Zhou LF, Lu R. Compound-honeysuckle-induced drug eruption with special manifestations: A case report. World J Clin Cases 2022;10(22):8018-8024. 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 Honeysuckle and Fludarabine Together: Common Questions

Is it safe to take Honeysuckle with Fludarabine?
We do not list a known interaction between Honeysuckle and Fludarabine. 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 Honeysuckle and Fludarabine have any of the same side effects?
Yes — our sources link each of them separately to one 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.
How was the Honeysuckle and Fludarabine combination checked?
Interactions in our licensed database are recorded against drug classes. Fludarabine is filed under 1 classification, and Honeysuckle has documented interactions with 1 drug class — none of Fludarabine's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Honeysuckle interact with any other medications?
Yes. Honeysuckle has 122 documented drug interactions in our database — Fludarabine is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Fludarabine interact with any supplements?
Yes. Fludarabine has documented interactions with 17 supplements in our database — Honeysuckle is not one of them. The Fludarabine 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

Honeysuckle monograph Uses, safety profile, and every drug interaction in one place Fludarabine Injection drug information The full plain-English guide to this medication Fludarabine supplement interactions Every supplement checked against Fludarabine, 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 3 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Fludarabine and Honeysuckle?

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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.