Drug & supplement interaction

Brickellia + Peginterferon alfa-2a, Ribavirin

Peginterferon alfa-2a, Ribavirin brand names: Pegasys, Pegetron.

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 Peginterferon alfa-2a, Ribavirin 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 Peginterferon alfa-2a, Ribavirin

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 Peginterferon alfa-2a, Ribavirin 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 Peginterferon alfa-2a, Ribavirin and Brickellia? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Peginterferon alfa-2a, Ribavirin

Interactions in our licensed database are recorded against drug classes, not just single drug names. Peginterferon alfa-2a, Ribavirin is filed under a single classification — oral drugs. Brickellia has documented interactions with 1 drug class — the most serious being antidiabetes drugs (moderate) — and none of Peginterferon alfa-2a, Ribavirin’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 — Peginterferon alfa-2a, Ribavirin 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. Peginterferon alfa-2a, Ribavirin)
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.

What to actually watch for

What Peginterferon alfa-2a, Ribavirin’s Own FDA Label Lists

This is not an interaction — none of it involves Brickellia. These are the most notable effects listed in the ADVERSE REACTIONS section of Peginterferon alfa-2a, Ribavirin’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. 10 of them are worth acting on rather than waiting out — marked below.

  • A change in thyroid levels Worth acting on
  • Thoughts of self-harm Worth acting on
  • Bleeding in the gut Worth acting on
  • Blood clots Worth acting on
  • Hallucinations Worth acting on
  • Pancreatitis Worth acting on
  • High blood sugar Worth acting on
  • An irregular heartbeat Worth acting on
  • Chest pain Worth acting on
  • Low mood Worth acting on

Showing the 10 most notable of 34 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 Peginterferon alfa-2a, Ribavirin. Read the label on DailyMed › Brickellia’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Brickellia side to compare — that is a limit of the record, not a statement that Brickellia has no side effects.

Everything else you take

See Every Supplement That Interacts With Peginterferon alfa-2a, Ribavirin

This page covers Brickellia only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Peginterferon alfa-2a, Ribavirin 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 Peginterferon alfa-2a, Ribavirin page

“Hepatitis C treatment with Pegasys or Pegetron (peginterferon alfa-2a plus ribavirin) is rough on the stomach, and the charcoal, fiber powders, and soothing gums people reach for are exactly what fills this list. All 17 entries work the same way, interfering with how the oral ribavirin half of the therapy gets absorbed.”

Reviewed by 2 · Jul 18, 2026

Open the Peginterferon alfa-2a, Ribavirin interaction page

How much people look this up

Where Brickellia and Peginterferon alfa-2a, Ribavirin 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 Peginterferon alfa-2a, Ribavirin
Top 5%

#74 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 Peginterferon alfa-2a, Ribavirin 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 Peginterferon Alfa-2a Injection

What Is Peginterferon Alfa-2a Injection Used For?

Brand names: Pegasys, Pegetron

Pegasys (peginterferon alfa-2a) is used to treat chronic hepatitis C (CHC) and chronic hepatitis B (CHB). For chronic hepatitis C in adults, Pegasys is typically used in combination with other hepatitis C antiviral drugs; it may be used alone only if other HCV drugs cannot be tolerated or are contraindicated. For children aged 5 and older with CHC, Pegasys is used in combination with ribavirin.

For chronic hepatitis B, Pegasys treats adults who have HBeAg-positive or HBeAg-negative CHB with compensated liver disease and evidence of active viral replication and liver inflammation. In children aged 3 and older with HBeAg-positive CHB (without cirrhosis), Pegasys is also indicated when there is evidence of viral replication and liver enzyme elevation.

See full Peginterferon Alfa-2a 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
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 Peginterferon alfa-2a, Ribavirin, 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 Peginterferon alfa-2a, Ribavirin Together: Common Questions

Is it safe to take Brickellia with Peginterferon alfa-2a, Ribavirin?
We do not list a known interaction between Brickellia and Peginterferon alfa-2a, Ribavirin. 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 Peginterferon alfa-2a, Ribavirin combination checked?
Interactions in our licensed database are recorded against drug classes. Peginterferon alfa-2a, Ribavirin is filed under 1 classification, and Brickellia has documented interactions with 1 drug class — none of Peginterferon alfa-2a, Ribavirin'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 — Peginterferon alfa-2a, Ribavirin 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 Peginterferon alfa-2a, Ribavirin interact with any supplements?
Yes. Peginterferon alfa-2a, Ribavirin has documented interactions with 17 supplements in our database — Brickellia is not one of them. The Peginterferon alfa-2a, Ribavirin 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 Peginterferon Alfa-2a Injection drug information The full plain-English guide to this medication Peginterferon alfa-2a, Ribavirin supplement interactions Every supplement checked against Peginterferon alfa-2a, Ribavirin, 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 Peginterferon alfa-2a, Ribavirin and Brickellia?

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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.