Haronga + Interferon Alfa-2b
Interferon Alfa-2b brand names: Rebetron, Intron A, Viraferon.
We found no known interaction between Haronga and Interferon 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.
Haronga and Interferon 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 Interferon Alfa-2b and Haronga 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.
Worth understanding: our licensed dataset holds no drug-interaction record for Haronga at all — not against Interferon Alfa-2b, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.
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.
Haronga safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Interferon Alfa-2b
This page covers Haronga only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Interferon Alfa-2b page lists 57 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), Alfalfa (moderate) and Angelica Archangelica (moderate).
By severity: 3 major · 53 moderate · 1 minor.
From our pharmacist’s overview on the Interferon Alfa-2b page
“People taking interferon alfa-2b (Intron A, Rebetron) are usually treating hepatitis or a cancer, so the liver may already be under strain, and that is exactly where most of this list points. Of the 57 supplements on file, 38 can add to liver stress, and all three major-rated interactions sit in that group: Siberian cocklebur, which ha…”
Reviewed by 2 · Jul 18, 2026
Where Haronga and Interferon 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.
#873 of 1,452 supplements looked up here in the last 7 days
#2,433 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. Haronga 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 Haronga reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Haronga and Interferon 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 Haronga
What is Haronga?
- Indigestion and dyspepsia
- Loss of appetite
- Digestive complaints
- Diarrhea (traditional use)
- Wound healing (traditional, topical)
Haronga (Harungana madagascariensis) is an African tree whose bark and leaves have been used traditionally and in some European products for indigestion and digestive complaints. Evidence for its benefits is very limited, and safety information is sparse, so it should be used with caution and under the guidance of a pharmacist or doctor.
Harungana madagascariensis · Hypericaceae · Bark and leaves · Capsules, tablets, dried bark, tea, liquid extracts
An interaction check asks whether these two react with each other — it does not ask whether Haronga is a good idea for someone in your situation. Here is what our Haronga record says about it on its own.
Haronga: dosing
There is no well-established standardized dose for Haronga. Amounts vary between products and traditional preparations.If you use a commercial product, follow the directions on the label and do not exceed the recommended amount.
From our Haronga monograph — the full record covers uses, side effects and every documented interaction.
About Interferon Alfa-2b Injection
What Is Interferon Alfa-2b Injection Used For?
Brand names: Rebetron, Intron A, Viraferon
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Interferon alfa-2b injection is used to treat a number of conditions.
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Interferon alfa-2b injection is used
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alone or in combination with ribavirin (Copegus, Rebetol, Ribasphere) to treat chronic (long-term) hepatitis C infection (swelling of the liver caused by a virus) in people who show signs of liver damage,
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to treat chronic hepatitis B infection (swelling of the liver caused by a virus) in people who show signs of liver damage,
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to treat hairy cell leukemia (a white blood cell cancer),
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to treat genital warts,
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to treat Kaposi's sarcoma (a type of cancer that causes abnormal tissue to grow on different parts of the body) related to acquired immunodeficiency syndrome (AIDS),
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to treat malignant melanoma (a cancer that begins in certain skin cells) in certain people who have had surgery to remove the cancer,
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along with another medication to treat follicular non-Hodgkin's lymphoma (NHL; a slow-growing blood cancer).
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Interferon alfa-2b is in a class of medications called immunomodulators. Interferon alfa-2b works to treat hepatitis C virus (HCV) and hepatitis B virus (HBV) by decreasing the amount virus in the body. Interferon alfa-2b may not cure hepatitis B or hepatitis C or prevent you from developing complications from these infections such as cirrhosis (scarring) of the liver, liver failure, or liver cancer. It also may not prevent the spread of hepatitis B or C to other people. It is not known exactly how interferon alfa-2b works to treat cancer or genital warts.
Other Drugs & Haronga
Browse every other medication we’ve checked against Haronga — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Haronga against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Warfarin ›
- Methylphenidate ›
- Sertraline ›
- Losartan Potassium ›
- Testosterone ›
- Ivermectin ›
- Aspirin ›
- Abemaciclib ›
- Metoprolol ›
- Acetaminophen ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Tadalafil ›
- Tirzepatide ›
- Methamphetamine ›
- Ibuprofen ›
- Valacyclovir ›
- Warfarin Sodium ›
- Hydroxyurea ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Lisdexamfetamine ›
- Propranolol ›
- Metformin ›
- Amitriptyline ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Amlodipine Besylate ›
- Methotrexate ›
- Bendamustine ›
- Bupropion ›
- Amphetamine ›
- Doxycycline ›
- Fluoxetine ›
- Acyclovir ›
- Azithromycin ›
- Lamotrigine ›
- Pregabalin ›
- Dextroamphetamine ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Levothyroxine, Liothyronine ›
- Clonazepam ›
- Quetiapine ›
- Naproxen ›
- Omeprazole ›
- Letrozole ›
- Duloxetine ›
- Methylene Blue ›
- Buspirone ›
- Citalopram ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Haronga list.
Haronga References
The 2 sources that drive our Haronga monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Haronga is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.
- Dietary Supplements: What You Need to Know — NIH Office of Dietary Supplements Source
- Herbs at a Glance — NIH National Center for Complementary and Integrative Health 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.
Taking Haronga and Interferon Alfa-2b Together: Common Questions
Is it safe to take Haronga with Interferon Alfa-2b?
Does Interferon 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.