Carqueja + Peginterferon alfa-2b
Peginterferon alfa-2b brand names: Peg-Intron, ViraferonPeg.
We found no known interaction between Carqueja and Peginterferon alfa-2b 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.
Carqueja and Peginterferon alfa-2b
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-2b and Carqueja 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.
Carqueja safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Why No Interaction Is Listed for Peginterferon alfa-2b
Interactions in our licensed database are recorded against drug classes, not just single drug names. Peginterferon alfa-2b is filed under a single classification — hepatotoxic drugs. Carqueja has documented interactions with 1 drug class — the most serious being antidiabetes drugs (moderate) — and none of Peginterferon alfa-2b’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.
Carqueja Does Interact With Other Medications
Carqueja has 86 moderate known drug interactions in our database — Peginterferon alfa-2b isn’t one of them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Carqueja
We haven’t checked that one against Carqueja yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Carqueja. Pick one to open its full report.
See Every Supplement That Interacts With Peginterferon alfa-2b
This page covers Carqueja only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Peginterferon alfa-2b page lists 38 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Beer (major), Siberian Cocklebur (major), Wine (major), Ashwagandha (moderate) and Black Cohosh (moderate).
By severity: 3 major · 35 moderate.
From our pharmacist’s overview on the Peginterferon alfa-2b page
“Someone taking peginterferon alfa-2b (Peg-Intron) is usually treating hepatitis C, so the liver is already the organ under strain, and all 38 supplement interactions on file for this drug pile additional liver stress on top of it. That earns genuine caution.”
Reviewed by 2 · Jul 18, 2026
Taking Carqueja as Part of a Dietary Supplement Product? Check It for Interactions
We hold 3 real supplement products containing Carqueja, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Carqueja. Even though Carqueja itself has no known interaction with Peginterferon alfa-2b, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Carqueja and Peginterferon alfa-2b 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.
#1,285 of 1,452 supplements looked up here in the last 7 days
#2,659 of 2,830 medications looked up here in the last 7 days
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 Carqueja reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Carqueja and Peginterferon alfa-2b records this page draws on were last updated June 22, 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.
About Carqueja
What is Carqueja?
- Digestive upset and bloating
- Liver and gallbladder support
- Blood sugar control
- Weight loss
- Anti-inflammatory
Carqueja is a South American herb traditionally used as a bitter tea for digestion, liver complaints, and blood sugar. Human evidence is very limited, so its benefits are not well proven. Because safety data are thin, it should be avoided in pregnancy and breastfeeding and used cautiously by everyone else.
Baccharis trimera · Asteraceae · Aerial parts (stems and winged branches) · Tea (infusion or decoction), tincture, capsules, liquid extract
An interaction check asks whether these two react with each other — it does not ask whether Carqueja is a good idea for someone in your situation. Here is what our Carqueja record says about it on its own.
Carqueja: dosing
There is no well-established standardized dose for carqueja. Traditional use is most often as a tea made from the dried aerial parts, but the strength of teas, tinctures, and capsules varies widely between products.The safest approach is to follow the directions on the product label and not exceed the suggested amount.
From our Carqueja monograph — the full record covers uses, side effects and every documented interaction.
About Peginterferon Alfa-2b (PEG-Intron)
What Is Peginterferon Alfa-2b (PEG-Intron) Used For?
Brand names: Peg-Intron, ViraferonPeg
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Peginterferon alfa-2b is used alone or in combination with ribavirin (a medication) to treat chronic (long-term) hepatitis C infection (swelling of the liver caused by a virus) in people who show signs of liver damage and who have not been treated with interferon alpha (medication similar to peginterferon alfa-2b) in the past. Peginterferon alfa-2b is in a class of medications called interferons. Peginterferon alfa-2b is a combination of interferon and polyethylene glycol, which helps the interferon stay active in your body for a longer period of time. Peginterferon alpha-2b works by decreasing the amount of hepatitis C virus (HCV) in the body. Peginterferon alfa-2b may not cure hepatitis C or prevent you from developing complications of hepatitis C such as cirrhosis (scarring) of the liver, liver failure, or liver cancer. Peginterferon alfa-2b may not prevent the spread of hepatitis C to other people.
Other Drugs & Carqueja
Browse every other medication we’ve checked against Carqueja — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
86 interactions
- Insulin (rdna) ›
- Glyburide ›
- Insulin (pork) ›
- Insulin (human) ›
- Acarbose ›
- Insulin Glargine ›
- Semaglutide ›
- Chlorpropamide ›
- Exenatide ›
- Glipizide ›
- Glucagon ›
- Insulin Lispro ›
- Metformin ›
- Repaglinide ›
- Sitagliptin ›
- Tirzepatide ›
- Acetohexamide ›
- Albiglutide ›
- Alogliptin ›
- Canagliflozin ›
- Dapagliflozin ›
- Dasiglucagon Hydrochloride ›
- Dulaglutide ›
- Empagliflozin ›
- Ertugliflozin ›
- Exenatide Synthetic ›
- Gliclazide ›
- Glimepiride ›
- Glucose ›
- Inhaled Insulin ›
- Insulin ›
- Insulin (bovine) ›
- Insulin Aspart ›
- Insulin Degludec ›
- Insulin Determir ›
- Insulin Glargine (rdna) ›
- Insulin Glargine Recombinant ›
- Insulin Glulisine (rdna) ›
- Insulin Lispro Recombinant ›
- Insulin Lispro-aabc ›
- Linagliptin ›
- Liraglutide ›
- Liraglutide Recombinant ›
- Lixisenatide ›
- Metformin Hydrochloride ›
- Metformin Xr ›
- Miglitol ›
- Muraglitazar ›
- Nateglinide ›
- Pioglitazone ›
- Pramlintide ›
- Rosiglitazone Maleate ›
- Saxagliptin ›
- Sotagliflozin ›
- Tobutamide ›
- Tolazamide ›
- Tolbutamide ›
- Troglitazone ›
- Vildagliptin ›
- Metformin, Sitagliptin ›
Showing 60 of 86 moderate interactions — see all 86 on the Carqueja page.
No interaction 2,743 drugs checked — show the list
We also checked Carqueja against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Metoprolol ›
- Ivermectin ›
- Aspirin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Escitalopram ›
- Acetaminophen ›
- Tadalafil ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Valacyclovir ›
- Hydroxyurea ›
- Abemaciclib ›
- Methamphetamine ›
- Ibuprofen ›
- Sumatriptan ›
- Warfarin Sodium ›
- Prednisone ›
- Propranolol ›
- Bupropion ›
- Lisdexamfetamine ›
- Amoxicillin ›
- Acyclovir ›
- Lisinopril ›
- Bendamustine ›
- Amitriptyline ›
- Doxycycline ›
- Methotrexate ›
- Fluoxetine ›
- Lamotrigine ›
- Amphetamine ›
- Gabapentin ›
- Pregabalin ›
- Acetaminophen, Codeine ›
- Azithromycin ›
- Dextroamphetamine ›
- Isotretinoin ›
- Clonazepam ›
- Omeprazole ›
- Quetiapine ›
- Methylene Blue ›
- Amlodipine Besylate ›
- Duloxetine ›
- Letrozole ›
- Buspirone ›
- Citalopram ›
- Naproxen ›
- Ciprofloxacin ›
- Bisoprolol ›
- Levothyroxine, Liothyronine ›
- Acetaminophen, Oxycodone ›
Showing the 60 most looked-up of 2,743 medications checked with no known interaction — see the full Carqueja list.
Carqueja References
The 2 references that drive our Carqueja 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.
- Coelho MG, Reis PA, Gava VB, et al. Anti-arthritic effect and subacute toxicological evaluation of Baccharis genistelloides aqueous extract. Toxicol Lett 2004;154:69-80. PubMed
- Oliveira AC, Endringer DC, Amorim LA, et al. Effect of the extracts and fractions of Baccharis trimera and Syzygium cumini on glycaemia of diabetic and non-diabetic mice. J Ethnopharmacol 2005;102:465-9. 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.
Taking Carqueja and Peginterferon alfa-2b Together: Common Questions
Is it safe to take Carqueja with Peginterferon alfa-2b?
How was the Carqueja and Peginterferon alfa-2b combination checked?
Does Carqueja interact with any other medications?
Does Peginterferon alfa-2b interact with any supplements?
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.