Drug & supplement interaction

Panax Ginseng + Cladribine

Cladribine brand names: Leustatin, Mavenclad.

Moderate Interaction
Medically reviewed by · Updated October 2026
The bottom line Moderate

Panax Ginseng has a moderate interaction with Cladribine. Theoretically, Panax ginseng use might interfere with immunosuppressive therapy.

Read the full interaction report
SeverityModerate
LikelihoodPossible
EvidenceB
What do Severity, Likelihood & Evidence mean?
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Interaction report

Panax Ginseng and Cladribine

Here is the interaction we found between these two, with the evidence behind it.

Moderate

IMMUNOSUPPRESSANTS

Why this applies to Cladribine

Cladribine falls under IMMUNOSUPPRESSANTS — the group Panax Ginseng interacts with.

Theoretically, Panax ginseng use might interfere with immunosuppressive therapy.
Panax ginseng might have immune system stimulating properties.
Severity Moderate Likelihood Possible Evidence B

Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the thinking behind pairing these two. Cladribine (Mavenclad) works by quieting down certain immune cells to calm the nerve damage that drives MS relapses. Panax ginseng, on the other hand, has been reported to gently stimulate the immune system. So in theory, ginseng could push in the opposite direction of what your MS treatment is trying to do, which might blunt some of the benefit.

I want to be honest with you: this is a theoretical concern based on how ginseng behaves in general, not on solid studies with cladribine specifically. Cladribine is a powerful, carefully dosed medication, so I wouldn't add ginseng on your own. Run it past your neurologist or pharmacist first, and they can weigh whether it's worth avoiding.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Shin HR, Kim JY, Yun TK, et al. The cancer-preventive potential of Panax ginseng: a review of human and experimental evidence. Cancer Causes Control 2000;11:565-76. PubMed

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Panax Ginseng Also Interacts With Other Medications

Panax Ginseng has 1,131 moderate known drug interactions in our database — the Cladribine one above is one of them. If you take anything else, check it against the full list below.

Moderate 1,131 No known interaction 1,699 (incl. Cladribine)
Taking anything else?

Check Another of Your Medications Against Panax Ginseng

Covers the 2,830 medications we’ve checked against Panax Ginseng. Pick one to open its full report.

Everything else you take

See Every Supplement That Interacts With Cladribine

This page covers Panax Ginseng only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Cladribine page lists 70 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Active Hexose Correlated Compound (ahcc) (moderate), Alfalfa (moderate), American Ginseng (moderate) and Andrographis (moderate).

By severity: 1 major · 59 moderate · 10 minor.

From our pharmacist’s overview on the Cladribine page

“Cladribine (Leustatin, Mavenclad) treats hairy cell leukemia and relapsing multiple sclerosis by deliberately knocking down part of the immune system, so this list calls for real vigilance. Of the 70 supplements and herbs on file, 53 are immune stimulators, herbs like astragalus, ashwagandha, and ginseng that could push immunity back u…”

Reviewed by 2 · Jul 18, 2026

Open the Cladribine interaction page

One more smart check

Taking Panax Ginseng as Part of a Dietary Supplement Product? Check It for Interactions

We hold 517 real supplement products containing Panax Ginseng, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Panax Ginseng. Your product may carry other ingredients that interact with Cladribine too, on top of Panax Ginseng — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Panax Ginseng and Cladribine 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 Panax Ginseng
Top 25%

#231 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Cladribine
Steady interest

#1,984 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.

Supplement

About Panax Ginseng

What is Panax Ginseng?

Panax Ginseng
  • Boosting energy and fighting fatigue
  • Improving mental focus and memory
  • Coping with stress (adaptogen)
  • Erectile dysfunction
  • Supporting immune health
  • Blood sugar support

Panax ginseng is a popular traditional herb used to boost energy, ease stress, and support overall wellness, though scientific evidence is mixed and mostly preliminary. It is generally well tolerated for short-term use in healthy adults, but it can cause side effects like trouble sleeping and may not be safe during pregnancy or breastfeeding. Always check with your pharmacist or doctor before starting it, especially if you have a medical condition or take other medicines.

Read the full Panax Ginseng monograph & all interactions
Medication

About Cladribine

What Is Cladribine Used For?

Brand names: Leustatin, Mavenclad

Cladribine has two different uses, depending on the product.

Cladribine tablets (including Mavenclad) treat relapsing forms of multiple sclerosis in adults. This includes relapsing-remitting disease and active secondary progressive disease. Because of its safety profile, it is generally used after another MS drug has not worked well enough or could not be tolerated. It is not recommended for clinically isolated syndrome (CIS).

Cladribine injection (intravenous) treats active hairy cell leukemia. That means disease with clinically significant anemia, neutropenia, thrombocytopenia or disease-related symptoms.

See full Cladribine drug information
Keep checking

Other Drugs & Panax Ginseng

Browse every other medication we’ve checked against Panax Ginseng — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
1,131Moderate
0Minor
1,698No known interaction
1,131 Moderate 1,698 No interaction
Moderate

1,131 interactions

Showing 60 of 1,131 moderate interactions — see all 1,131 on the Panax Ginseng page.

No interaction 1,698 drugs checked — show the list

We also checked Panax Ginseng against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 1,698 medications checked with no known interaction — see the full Panax Ginseng list.

See the full Panax Ginseng interactions page
See every supplement checked against Cladribine, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Panax Ginseng monograph › Uses, safety, and every drug interaction in one place Cladribine supplement interactions › Every supplement checked against Cladribine, ranked by severity Cladribine drug information › The full plain-English guide to this medication Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Panax Ginseng and Cladribine Together: Common Questions

Can you take Panax Ginseng with Cladribine?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Panax Ginseng and Cladribine interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Still Have a Question About Cladribine and Panax Ginseng?

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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.