Carbon 60 (c60) + Leflunomide
Leflunomide brand name: Arava.
We found no known interaction between Carbon 60 (c60) and Leflunomide 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.
Carbon 60 (c60) and Leflunomide
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 Leflunomide and Carbon 60 (c60) 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 Carbon 60 (c60) at all — not against Leflunomide, 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.
Carbon 60 (c60) safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Leflunomide
This page covers Carbon 60 (c60) only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Leflunomide page lists 59 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 Ashwagandha (moderate).
By severity: 4 major · 46 moderate · 9 minor.
From our pharmacist’s overview on the Leflunomide page
“Leflunomide (Arava) quiets rheumatoid arthritis by damping down the immune system, and its best-known danger is liver injury, so the 59 supplements and herbs on this page are worth slowing down for. Thirty-eight of them carry liver risks of their own, and of the four rated major, two are simply alcoholic drinks, while a third, Siberian…”
Reviewed by 2 · Jul 18, 2026
Where Carbon 60 (c60) and Leflunomide 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.
#1,247 of 1,452 supplements looked up here in the last 7 days
#2,319 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. Carbon 60 (c60) 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 Carbon 60 (c60) reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Carbon 60 (c60) and Leflunomide 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 Carbon 60 (c60)
What is Carbon 60 (c60)?
- Antioxidant support
- Anti-aging and longevity
- Energy and vitality
- Athletic recovery
- General wellness
Carbon 60 (C60) is a man-made molecule made of 60 carbon atoms, usually sold dissolved in oil and marketed as a powerful antioxidant or anti-aging supplement. Despite bold marketing, there is no good human evidence that it provides any of these benefits, and its long-term safety in people is unknown. Talk to your pharmacist or doctor before trying it, and avoid it during pregnancy and breastfeeding.
Not applicable (synthetic carbon molecule) · Liquid (C60 dissolved in oils such as olive, coconut, or avocado oil), softgels, capsules
An interaction check asks whether these two react with each other — it does not ask whether Carbon 60 (c60) is a good idea for someone in your situation. Here is what our Carbon 60 (c60) record says about it on its own.
Carbon 60 (c60): dosing
There is no established or standardized dose for C60. Because there are no reliable human studies, no one can say what amount is safe or effective.If you choose to use a C60 product, follow the directions on the label and do not exceed them. It is a good idea to choose products from companies that provide third-party testing for purity.
From our Carbon 60 (c60) monograph — the full record covers uses, side effects and every documented interaction.
About Leflunomide
What Is Leflunomide Used For?
Brand name: Arava
Leflunomide tablets — sold under the brand name Arava and as generic leflunomide — are used to treat active rheumatoid arthritis (RA) in adults. Both Arava and generic leflunomide tablets are FDA-approved for this use.
Rheumatoid arthritis is an autoimmune condition in which the immune system attacks the joints, causing pain, swelling, and stiffness. Leflunomide helps calm that overactive immune response to reduce symptoms and slow joint damage.
Most-Reported Side Effects for Leflunomide
From FAERS, the FDA’s public side-effect reporting system (104,033 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Carbon 60 (c60)
Browse every other medication we’ve checked against Carbon 60 (c60) — 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 Carbon 60 (c60) against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Warfarin ›
- Methylphenidate ›
- Sertraline ›
- Testosterone ›
- Ivermectin ›
- Losartan Potassium ›
- Abemaciclib ›
- Aspirin ›
- Acetaminophen ›
- Metoprolol ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Tadalafil ›
- Tirzepatide ›
- Methamphetamine ›
- Ibuprofen ›
- Warfarin Sodium ›
- Valacyclovir ›
- Hydroxyurea ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Propranolol ›
- Amitriptyline ›
- Lisdexamfetamine ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Amlodipine Besylate ›
- Bendamustine ›
- Methotrexate ›
- Bupropion ›
- Amphetamine ›
- Doxycycline ›
- Fluoxetine ›
- Azithromycin ›
- Acyclovir ›
- 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 Carbon 60 (c60) list.
Carbon 60 (c60) References
The 3 sources that drive our Carbon 60 (c60) monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Carbon 60 (c60) is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.
- Antioxidants: In Depth — NIH NCCIH Source
- Dietary Supplements: What You Need to Know — NIH Office of Dietary Supplements Source
- Dietary Supplements — MedlinePlus 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 Carbon 60 (c60) and Leflunomide Together: Common Questions
Is it safe to take Carbon 60 (c60) with Leflunomide?
Does Leflunomide interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Leflunomide and Carbon 60 (c60)?
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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.