Drug & supplement interaction

Banderol + Olaparib

Olaparib brand name: Lynparza.

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

We found no known interaction between Banderol and Olaparib 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

Banderol and Olaparib

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 Olaparib and Banderol 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.

Banderol safety at a glance

Banderol overall Use caution Human safety data are very limited, so use carefully and under professional guidance.
Pregnancy Avoid Not enough safety information; avoid during pregnancy.
Breastfeeding Avoid Not enough safety information; avoid while breastfeeding.

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

Pharmacist analysis

Due to the lack of scientific data, it is difficult to make definitive statements about potential drug interactions involving Banderol (Otoba parvifolia).

Although some preliminary studies done in a lab setting have noted some potential interactions (which can be found in our interaction checker), more are needed to better understand the safety of Banderol when combined with OTC (over-the-counter) or prescription drugs.

—

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

Why No Interaction Is Listed for Olaparib

Interactions in our licensed database are recorded against drug classes, not just single drug names. Olaparib is filed under 2 classifications — cytochrome p450 3a4 (cyp3a4) substrates, oral drugs. Banderol has documented interactions with 2 drug classes — the most serious being organic anion transporter 1 (oat1) substrates (moderate) and organic anion transporter 3 (oat3) substrates (moderate) — and none of Olaparib’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

Banderol Does Interact With Other Medications

Banderol has 177 moderate known drug interactions in our database — Olaparib isn’t one of them. If you take anything else, check it against the full list below.

Moderate 177 No known interaction 2,653 (incl. Olaparib)
Taking anything else?

Check Another of Your Medications Against Banderol

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

What to actually watch for

What Olaparib’s Own FDA Label Lists

This is not an interaction — none of it involves Banderol. These are the most notable effects listed in the ADVERSE REACTIONS section of Olaparib’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. 8 of them are worth acting on rather than waiting out — marked below.

  • Blood clots Worth acting on
  • Anemia Worth acting on mentioned in 7.8% of FDA reports for Olaparib
  • A low platelet count Worth acting on
  • Raised blood pressure Worth acting on
  • Shortness of breath Worth acting on
  • A low white blood cell count Worth acting on
  • Liver problems Worth acting on
  • A higher chance of infection Worth acting on
  • A change in taste
  • Mouth irritation or sores

Showing the 10 most notable of 23 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 Olaparib. Read the label on DailyMed › Where a percentage is shown, it is the share of 20,798 voluntary FDA FAERS reports for Olaparib that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Banderol’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Banderol side to compare — that is a limit of the record, not a statement that Banderol has no side effects.

Everything else you take

See Every Supplement That Interacts With Olaparib

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

“Grapefruit is the first thing to drop if you take Olaparib (Lynparza). It blocks CYP3A4, the liver enzyme that clears this cancer drug, so levels can climb and side effects with them.”

Reviewed by 2 · Jul 18, 2026

Open the Olaparib interaction page

How much people look this up

Where Banderol and Olaparib 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 Banderol
Top half

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

29 days ago today
Medication Olaparib
Steady interest

#1,512 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. Banderol 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 Banderol reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Banderol and Olaparib records this page draws on were last updated June 20, 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 Banderol

What is Banderol?

Banderol
  • Lyme disease support
  • Antimicrobial
  • Antifungal
  • Immune support
  • Inflammation

Banderol is a Nutramedix-branded herbal extract made from the bark of the Amazonian tree Otoba parvifolia, most often promoted as part of alternative Lyme disease protocols. There is very little high-quality human research to support its use, so the evidence behind its benefits is weak and largely preliminary. Talk with your pharmacist or doctor before using it, and never use it to replace proven treatments.

Otoba parvifolia · Myristicaceae · Bark (extract) · Liquid tincture/drops, capsules

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

Banderol: dosing

There is no official, standardized dose for Banderol. It has not been studied enough in humans to set a proven safe and effective amount.If you choose to use it, follow the directions on the product label exactly, since the manufacturer's tincture is typically dosed as a small number of drops in water.

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

Read the full Banderol monograph & all interactions
Medication

About Olaparib

What Is Olaparib Used For?

Brand name: Lynparza

Lynparza (olaparib) is used to treat adults with certain ovarian, fallopian tube, or primary peritoneal cancers that carry BRCA or other DNA-repair gene mutations — both as a maintenance therapy after platinum-based chemotherapy (including in combination with bevacizumab for some patients) and for recurrent disease. It is also approved for HER2-negative breast cancer with a germline BRCA mutation, both in early high-risk disease (adjuvant setting) and in metastatic disease.

Lynparza is additionally used as maintenance therapy for adults with germline BRCA-mutated metastatic pancreatic adenocarcinoma whose disease has not progressed on first-line platinum-based chemotherapy, and for adults with certain gene-mutated metastatic castration-resistant prostate cancer — either alone (after prior enzalutamide or abiraterone) or in combination with abiraterone and prednisone or prednisolone. All uses require testing for specific genetic mutations using an FDA-approved companion diagnostic before starting treatment.

Most-Reported Side Effects for Olaparib

From FAERS, the FDA’s public side-effect reporting system (20,798 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Malignant neoplasm progression 2,063 reports
Nausea 1,827 reports
Fatigue 1,762 reports
Anemia 1,622 reports
Vomiting 724 reports
See full Olaparib drug information
Keep checking

Other Drugs & Banderol

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

0Major
177Moderate
0Minor
2,652No known interaction
177 Moderate 2,652 No interaction
Moderate

177 interactions

Showing 60 of 177 moderate interactions — see all 177 on the Banderol page.

No interaction 2,652 drugs checked — show the list

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

Showing the 60 most looked-up of 2,652 medications checked with no known interaction — see the full Banderol list.

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

Banderol References

The 3 sources that drive our Banderol monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Banderol is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Lyme Disease and Alternative Treatments — NIH NCCIH Source
  2. Using Dietary Supplements Wisely — NIH NCCIH Source
  3. Herbal Supplements — MedlinePlus 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 Banderol and Olaparib Together: Common Questions

Is it safe to take Banderol with Olaparib?
We do not list a known interaction between Banderol and Olaparib. 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.
How was the Banderol and Olaparib combination checked?
Interactions in our licensed database are recorded against drug classes. Olaparib is filed under 2 classifications, and Banderol has documented interactions with 2 drug classes — none of Olaparib'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 Banderol interact with any other medications?
Yes. Banderol has 177 documented drug interactions in our database — Olaparib 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 Olaparib interact with any supplements?
Yes. Olaparib has documented interactions with 138 supplements in our database — Banderol is not one of them. The Olaparib 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

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

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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.