Drug & supplement interaction

Brickellia + Diphenhydramine, Zinc Oxide

Diphenhydramine, Zinc Oxide brand name: Caladryl Clear.

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

We found no known interaction between Brickellia and Diphenhydramine, Zinc Oxide 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.

Know someone taking this? Share
Facebook Post Reddit Email
On this page
Interaction report

Brickellia and Diphenhydramine, Zinc Oxide

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 Diphenhydramine, Zinc Oxide and Brickellia 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.

Brickellia safety at a glance

Brickellia overall Not established Human safety data are very limited, so use cautiously and under professional guidance.
Pregnancy Avoid Not enough safety information exists, so it is best avoided during pregnancy.
Breastfeeding Avoid Safety while breastfeeding is unknown, so it is best avoided.

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

Still wondering about combining Diphenhydramine, Zinc Oxide and Brickellia? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Diphenhydramine, Zinc Oxide

Interactions in our licensed database are recorded against drug classes, not just single drug names. Diphenhydramine, Zinc Oxide is filed under 2 classifications — cytochrome p450 2d6 (cyp2d6) inhibitors, topical drugs. Brickellia has documented interactions with 1 drug class — the most serious being antidiabetes drugs (moderate) — and none of Diphenhydramine, Zinc Oxide’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

Brickellia Does Interact With Other Medications

Brickellia has 86 moderate known drug interactions in our database — Diphenhydramine, Zinc Oxide isn’t one of them. If you take anything else, check it against the full list below.

Moderate 86 No known interaction 2,744 (incl. Diphenhydramine, Zinc Oxide)
Taking anything else?

Check Another of Your Medications Against Brickellia

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

Everything else you take

See Every Supplement That Interacts With Diphenhydramine, Zinc Oxide

This page covers Brickellia only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Diphenhydramine, Zinc Oxide page lists 6 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Dimethylsulfoxide (dmso) (moderate), Fever Bark (moderate), Iboga (moderate), Turpentine Oil (moderate) and Yohimbe (moderate).

By severity: 5 moderate · 1 minor.

From our pharmacist’s overview on the Diphenhydramine, Zinc Oxide page

“Caladryl Clear, the diphenhydramine and zinc oxide lotion people dab on itchy bites and rashes, carries a short and manageable interaction list. None of its six flagged ingredients rates major; five are moderate and one minor.”

Reviewed by 2 · Jul 18, 2026

Open the Diphenhydramine, Zinc Oxide interaction page

How much people look this up

Where Brickellia and Diphenhydramine, Zinc Oxide 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 Brickellia
Steady interest

#1,275 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Diphenhydramine, Zinc Oxide
Steady interest

#2,066 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 Brickellia reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Brickellia and Diphenhydramine, Zinc Oxide 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 Brickellia

What is Brickellia?

  • Blood sugar support (diabetes)
  • Digestive complaints
  • Gallbladder and bile flow
  • Colds and fever

Brickellia, often sold under names like 'prodigiosa' or as a Mexican folk remedy for diabetes, is a plant in the daisy family traditionally brewed as a tea. Scientific evidence in humans is very limited, so its effectiveness and long-term safety are not well established. Talk with your pharmacist or doctor before using it, especially if you take medicines for blood sugar.

Brickellia grandiflora · Asteraceae · Leaves and flowering tops · Tea (infusion), dried herb, tincture, capsules

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

Brickellia: dosing

There is no established standardized dose for Brickellia. Traditional use is usually as a tea made from the dried leaves and flowering tops, but the strength of homemade preparations varies widely.If you choose to use a commercial product, follow the directions on the label and do not exceed them.

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

Read the full Brickellia monograph & all interactions
Keep checking

Other Drugs & Brickellia

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

0Major
86Moderate
0Minor
2,743No known interaction
86 Moderate 2,743 No interaction
Moderate

86 interactions

Showing 60 of 86 moderate interactions — see all 86 on the Brickellia page.

No interaction 2,743 drugs checked — show the list

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

Showing the 60 most looked-up of 2,743 medications checked with no known interaction — see the full Brickellia list.

See the full Brickellia interactions page
See every supplement checked against Diphenhydramine, Zinc Oxide, ranked by severity
Evidence & sources

Brickellia References

The 5 references that drive our Brickellia 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. Rosler KH, Goodwin RS, Mabry TJ, et al. Flavonoids with anti-cataract activity from Brickellia arguta. J Nat Prod 1984;47:316-9. PubMed
  2. Andrade-Cetto A, Heinrich M. Mexican plants with hypoglycaemic effect used in the treatment of diabetes. J Ethnopharmacol 2005;99:325-48. PubMed
  3. Perez RM, Cervantes H, Zavala MA, et al. Isolation and hypoglycemic activity of 5, 7,3'-trihydroxy-3,6,4'-trimethoxyflavone from Brickellia veronicaefolia. Phytomedicine 2000;7:25-9.
  4. Escandón-Rivera S, González-Andrade M, Bye R, Linares E, Navarrete A, Mata R. α-glucosidase inhibitors from Brickellia cavanillesii. J Nat Prod. 2012;75(5):968-74.
  5. Palacios-Espinosa F, Déciga-Campos M, Mata R. Antinociceptive, hypoglycemic and spasmolytic effects of Brickellia veronicifolia. J Ethnopharmacol. 2008;118(3):448-54. 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 Brickellia and Diphenhydramine, Zinc Oxide Together: Common Questions

Is it safe to take Brickellia with Diphenhydramine, Zinc Oxide?
We do not list a known interaction between Brickellia and Diphenhydramine, Zinc Oxide. 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 Brickellia and Diphenhydramine, Zinc Oxide combination checked?
Interactions in our licensed database are recorded against drug classes. Diphenhydramine, Zinc Oxide is filed under 2 classifications, and Brickellia has documented interactions with 1 drug class — none of Diphenhydramine, Zinc Oxide'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 Brickellia interact with any other medications?
Yes. Brickellia has 86 documented drug interactions in our database — Diphenhydramine, Zinc Oxide 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 Diphenhydramine, Zinc Oxide interact with any supplements?
Yes. Diphenhydramine, Zinc Oxide has documented interactions with 6 supplements in our database — Brickellia is not one of them. The Diphenhydramine, Zinc Oxide 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

Brickellia monograph Uses, safety profile, and every drug interaction in one place Diphenhydramine, Zinc Oxide supplement interactions Every supplement checked against Diphenhydramine, Zinc Oxide, 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 5 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Diphenhydramine, Zinc Oxide and Brickellia?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.