Drug & supplement interaction

Banderol + Chlorpheniramine, Methscopolamine, Phenylephrine

Chlorpheniramine, Methscopolamine, Phenylephrine brand names: DA II, Extendryl JR, Dallergy, Extendryl SR, Extendryl Chews, and others.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated June 2026 · Pair last verified Sep 13, 2026

The bottom line No known interaction

We found no known interaction between Banderol and Chlorpheniramine, Methscopolamine, Phenylephrine 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 Chlorpheniramine, Methscopolamine, Phenylephrine

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 Chlorpheniramine, Methscopolamine, Phenylephrine 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.

— Dr. Brian Staiger, PharmD, BCPS

Still wondering about combining Chlorpheniramine, Methscopolamine, Phenylephrine and Banderol? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

How we checked

Why No Interaction Is Listed for Chlorpheniramine, Methscopolamine, Phenylephrine

Interactions in our licensed database are recorded against drug classes, not just single drug names. Chlorpheniramine, Methscopolamine, Phenylephrine is filed under 11 classifications — including cytochrome p450 2d6 (cyp2d6) inhibitors, alpha-adrenergic agonists, stimulant 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 Chlorpheniramine, Methscopolamine, Phenylephrine’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 — Chlorpheniramine, Methscopolamine, Phenylephrine 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. Chlorpheniramine, Methscopolamine, Phenylephrine)

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.

Everything else you take

See Every Supplement That Interacts With Chlorpheniramine, Methscopolamine, Phenylephrine

This page covers Banderol only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Chlorpheniramine, Methscopolamine, Phenylephrine page lists 230 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Ephedra (major), Grapefruit (major), Henbane (major) and Lithium (major).

By severity: 10 major · 175 moderate · 45 minor.

From our pharmacist’s overview on the Chlorpheniramine, Methscopolamine, Phenylephrine page

“This allergy and congestion combination, Chlorpheniramine, Methscopolamine, and Phenylephrine (Dallergy, Extendryl), has 230 supplement and herbal ingredients on its interaction list, and 10 of them carry major ratings, so this is a list to check carefully rather than skim. The largest group works through the liver enzyme that breaks t…”

Reviewed by 2 · Jul 18, 2026

Open the Chlorpheniramine, Methscopolamine, Phenylephrine interaction page

How much people look this up

Where Banderol and Chlorpheniramine, Methscopolamine, Phenylephrine 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

Steady interest

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

29 days ago today

Medication Chlorpheniramine, Methscopolamine, Phenylephrine

Top half

#820 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 13, 2026. The Banderol and Chlorpheniramine, Methscopolamine, Phenylephrine 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 Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Banderol

What is 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

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 Chlorpheniramine, Methscopolamine, Phenylephrine, 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.

Lyme Disease and Alternative Treatments — NIH NCCIH Source
Using Dietary Supplements Wisely — NIH NCCIH Source
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 Chlorpheniramine, Methscopolamine, Phenylephrine Together: Common Questions

Is it safe to take Banderol with Chlorpheniramine, Methscopolamine, Phenylephrine?

We do not list a known interaction between Banderol and Chlorpheniramine, Methscopolamine, Phenylephrine. 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 Chlorpheniramine, Methscopolamine, Phenylephrine combination checked?

Interactions in our licensed database are recorded against drug classes. Chlorpheniramine, Methscopolamine, Phenylephrine is filed under 11 classifications, and Banderol has documented interactions with 2 drug classes — none of Chlorpheniramine, Methscopolamine, Phenylephrine'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 — Chlorpheniramine, Methscopolamine, Phenylephrine 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 Chlorpheniramine, Methscopolamine, Phenylephrine interact with any supplements?

Yes. Chlorpheniramine, Methscopolamine, Phenylephrine has documented interactions with 230 supplements in our database — Banderol is not one of them. The Chlorpheniramine, Methscopolamine, Phenylephrine 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 Chlorpheniramine, Methscopolamine, Phenylephrine supplement interactions Every supplement checked against Chlorpheniramine, Methscopolamine, Phenylephrine, 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 Chlorpheniramine, Methscopolamine, Phenylephrine 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.