Drug & supplement interaction

Betel Nut + Safinamide Mesylate

Safinamide Mesylate brand name: Xadago.

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

Betel Nut has a moderate interaction with Safinamide Mesylate. Animal research suggests that betel nut extract can inhibit monoamine oxidase.

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

Betel Nut and Safinamide Mesylate

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

Moderate

MONOAMINE OXIDASE INHIBITORS (MAOIs)

Why this applies to Safinamide Mesylate

Safinamide Mesylate falls under MONOAMINE OXIDASE INHIBITORS (MAOIs) — the group Betel Nut interacts with.

Animal research suggests that betel nut extract can inhibit monoamine oxidase. Theoretically, this may affect serotonin levels, potentially causing additive adverse effects if used with MAOIs. However, moclobemide, an MAOI, has been used with apparent safety to help improve betel nut chewing cessation rates in one small clinical trial.
Severity Moderate Likelihood Possible Evidence D

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 basic idea with Xadago (safinamide). Your medication is an MAO-B inhibitor that raises dopamine in the brain to smooth out those 'off' episodes in Parkinson's. There's lab and animal research hinting that betel nut may also block monoamine oxidase. On paper, stacking two things that do similar work could pile on effects, with possible concerns like higher blood pressure, restlessness, headache, confusion, or trouble sleeping.

I want to be honest though: this is theoretical, based on animal data, not solid human proof, and one small study even paired an MAOI with betel nut without obvious trouble. Still, betel nut carries real risks of its own (including mouth cancer and addiction), so I'd skip it. Please loop in your doctor or pharmacist before mixing anything with Xadago.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Dar, A. and Khatoon, S. Behavioral and biochemical studies of dichloromethane fraction from the Areca catechu nut. Pharmacol Biochem Behav. 1-1-2000;65(1):1-6. PubMed
  2. Hung CC, Lee CH, Ko AM, Lane HY, Lee CP, Ko YC. Effect of antidepressants for cessation therapy in betel-quid use disorder: a randomised, double-blind, placebo-controlled trial. Epidemiol Psychiatr Sci 2020;29:e125. 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

Betel Nut Also Interacts With Other Medications

Betel Nut has 228 moderate known drug interactions in our database — the Safinamide Mesylate one above is one of them. If you take anything else, check it against the full list below.

Moderate 228 No known interaction 2,602 (incl. Safinamide Mesylate)
Taking anything else?

Check Another of Your Medications Against Betel Nut

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

Everything else you take

See Every Supplement That Interacts With Safinamide Mesylate

This page covers Betel Nut only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Safinamide Mesylate page lists 81 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Beer (major), Bitter Orange (major), Brewer's Yeast (major) and Cowhage (major).

By severity: 14 major · 56 moderate · 11 minor.

Open the Safinamide Mesylate interaction page

How much people look this up

Where Betel Nut and Safinamide Mesylate 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 Betel Nut
Steady interest

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

29 days ago today
Medication Safinamide Mesylate
Top 25%

#562 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 Betel Nut

What is Betel Nut?

  • Stimulant or 'pick-me-up'
  • Chewed after meals as a digestive aid
  • Freshening the breath
  • Traditional and social/cultural use
  • Folk treatment for intestinal worms

Betel nut is the seed of the areca palm and is chewed by millions of people across Asia and the Pacific as a stimulant. It is not a safe supplement: regular use is strongly linked to mouth cancer, addiction, and other serious health problems, so it is best avoided.

Read the full Betel Nut monograph & all interactions
Medication

About Safinamide

What Is Safinamide Used For?

Brand name: Xadago

Xadago (safinamide) is used as an add-on treatment for adults with Parkinson's disease who are already taking levodopa/carbidopa and experiencing 'off' episodes — times when the medication wears off and Parkinson's symptoms return before the next dose is due.

Xadago is not used alone; it works only in combination with levodopa/carbidopa.

See full Safinamide drug information
Keep checking

Other Drugs & Betel Nut

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

0Major
228Moderate
0Minor
2,601No known interaction
228 Moderate 2,601 No interaction
Moderate

228 interactions

Showing 60 of 228 moderate interactions — see all 228 on the Betel Nut page.

No interaction 2,601 drugs checked — show the list

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

Showing the 60 most looked-up of 2,601 medications checked with no known interaction — see the full Betel Nut list.

See the full Betel Nut interactions page
See every supplement checked against Safinamide Mesylate, 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
Betel Nut monograph › Uses, safety, and every drug interaction in one place Safinamide Mesylate supplement interactions › Every supplement checked against Safinamide Mesylate, ranked by severity Safinamide 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 Betel Nut and Safinamide Mesylate Together: Common Questions

Can you take Betel Nut with Safinamide Mesylate?
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 Betel Nut and Safinamide Mesylate 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 Safinamide Mesylate and Betel Nut?

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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.