Haronga + Diroximel Fumarate
Diroximel Fumarate brand name: Vumerity.
We found no known interaction between Haronga and Diroximel Fumarate 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. Additionally, although there is no interaction, the label for Diroximel Fumarate states a food rule worth keeping to.
Haronga and Diroximel Fumarate
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 Diroximel Fumarate 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 Diroximel Fumarate, 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.
Some Diroximel Fumarate Products Have a Food Rule — Haronga Should Not Break It
At least one FDA label for a product containing Diroximel Fumarate says to take it with food. If you take Haronga on an empty stomach out of habit, keep them separate — and take Diroximel Fumarate with a meal where the label says to.
This may not be true of your version. Food instructions belong to the product, not the ingredient: two Diroximel Fumarate products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.
If taken with food, avoid a high-fat, high-calorie meal/snack; the meal/snack should contain no more than 700 calories and no more than 30 g fat [see Warnings and Precautions ( 5.6 ) and Clinical Pharmacology ( 12.3 )] .
From the Dosage and Administration section of the FDA label we read for Diroximel Fumarate — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›
A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.
See Every Supplement That Interacts With Diroximel Fumarate
This page covers Haronga only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Diroximel Fumarate page lists 106 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Beer (major), Siberian Cocklebur (major), Wine (major) and Active Hexose Correlated Compound (ahcc) (moderate).
By severity: 4 major · 92 moderate · 10 minor.
From our pharmacist’s overview on the Diroximel Fumarate page
“Diroximel fumarate (Vumerity) treats relapsing multiple sclerosis by quieting an overactive immune system, and I read its interaction list with real seriousness. Four of the 106 entries rate major, and none are exotic.”
Reviewed by 2 · Jul 18, 2026
Where Haronga and Diroximel Fumarate 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.
#855 of 1,452 supplements looked up here in the last 7 days
#511 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 Diroximel Fumarate 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 Diroximel Fumarate
What Is Diroximel Fumarate Used For?
Brand name: Vumerity
Vumerity (diroximel fumarate) is used to treat relapsing forms of multiple sclerosis (MS) in adults. This includes three specific types: clinically isolated syndrome (a first MS episode), relapsing-remitting MS (the most common pattern of flares and recovery), and active secondary progressive MS (a later stage where disability gradually worsens but relapses still occur).
Most-Reported Side Effects for Diroximel Fumarate
From FAERS, the FDA’s public side-effect reporting system (11,848 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
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 ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Ivermectin ›
- Aspirin ›
- Abemaciclib ›
- Acetaminophen ›
- Metoprolol ›
- 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 ›
- Pregabalin ›
- Lamotrigine ›
- 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 Diroximel Fumarate Together: Common Questions
Is it safe to take Haronga with Diroximel Fumarate?
Should I take Haronga and Diroximel Fumarate at the same time of day?
Does Diroximel Fumarate interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Diroximel Fumarate and Haronga?
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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.