Drug & supplement interaction

Brickellia + Efgartigimod alfa-fcab

Efgartigimod alfa-fcab brand name: Vyvgart.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Brickellia and Efgartigimod alfa-fcab 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

Brickellia and Efgartigimod alfa-fcab

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 Efgartigimod alfa-fcab 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 Efgartigimod alfa-fcab and Brickellia? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Efgartigimod alfa-fcab

Interactions in our licensed database are recorded against drug classes, not just single drug names. Efgartigimod alfa-fcab is filed under a single classification — immunosuppressants. Brickellia has documented interactions with 1 drug class — the most serious being antidiabetes drugs (moderate) — and none of Efgartigimod alfa-fcab’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 — Efgartigimod alfa-fcab isn’t one of them. If you take anything else, check it against the full list below.

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 Efgartigimod alfa-fcab

This page covers Brickellia only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Efgartigimod alfa-fcab page lists 53 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Active Hexose Correlated Compound (ahcc) (moderate), Alfalfa (moderate), American Ginseng (moderate), Andrographis (moderate) and Ashwagandha (moderate).

By severity: 52 moderate · 1 minor.

From our pharmacist’s overview on the Efgartigimod alfa-fcab page

“Every supplement on this list points the same direction for someone taking efgartigimod alfa-fcab (Vyvgart). The drug works by dialing down part of the immune system to treat generalized myasthenia gravis, and each of these ingredients, echinacea, astragalus, and American ginseng among them, is thought to stimulate immunity, which coul…”

Reviewed by 2 · Jul 18, 2026

Open the Efgartigimod alfa-fcab interaction page

How much people look this up

Where Brickellia and Efgartigimod alfa-fcab 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

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

29 days ago today
Medication Efgartigimod alfa-fcab
Top 25%

#537 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 Efgartigimod alfa-fcab 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
Medication

About Efgartigimod alfa-fcab Injection

What Is Efgartigimod alfa-fcab Injection Used For?

Brand name: Vyvgart

  • Efgartigimod alfa-fcab injection is used to treat a certain form of myasthenia gravis (MG; a disorder of the nervous system that causes muscle weakness). Efgartigimod alfa-fcab is in a group of medications called monoclonal antibodies. It works by reducing a certain natural substance in the body that causes symptoms of myasthenia gravis.

See full Efgartigimod alfa-fcab Injection drug information
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
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
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 Efgartigimod alfa-fcab Together: Common Questions

Is it safe to take Brickellia with Efgartigimod alfa-fcab?
We do not list a known interaction between Brickellia and Efgartigimod alfa-fcab. 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 Efgartigimod alfa-fcab combination checked?
Interactions in our licensed database are recorded against drug classes. Efgartigimod alfa-fcab is filed under 1 classification, and Brickellia has documented interactions with 1 drug class — none of Efgartigimod alfa-fcab'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 — Efgartigimod alfa-fcab 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 Efgartigimod alfa-fcab interact with any supplements?
Yes. Efgartigimod alfa-fcab has documented interactions with 53 supplements in our database — Brickellia is not one of them. The Efgartigimod alfa-fcab interaction page linked on this page lists every one, ranked by severity.

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

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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.