Medication interaction hub

What Supplements Interact with Amifampridine?

Amifampridine brand names: Ruzurgi, Firdapse. Every interaction below applies to the brands too.

44 Interactions 1 Major 33 Moderate 10 Minor
Curated & coded by · Clinical Pharmacist · Updated October 6, 2026

Drug–supplement interaction data sourced from Natural Medicines Pro, the licensed clinical database from TRC Healthcare / Therapeutic Research, with additional analysis by the HelloPharmacist Pharmacist Team. Our sources · Editorial policy

What is this page for?

One answer, for one medication: what supplements and herbal products interact with Amifampridine? Every vitamin, herb, and supplement ingredient we’ve checked against it is on this page, ranked by severity, each linking to the full report for that exact pair.

This page covers supplement interactions only — to check Amifampridine against your other medications, use the drug–drug interaction checker. Educational information from our licensed clinical databases, not medical advice. Our editorial policy

HelloPharmacist Bottom Line
Our Pharmacist Explains
What is this? The interaction data in the HelloPharmacist supplement database is licensed from Natural Medicines Pro by TRC Healthcare (Therapeutic Research). HelloPharmacist pharmacists often add our own analysis and context on top of that licensed data — such as this Bottom Line summary and the notes on individual interaction pages — and any such commentary is noted as ours.

Activated charcoal is the one supplement to know first with amifampridine (Ruzurgi). It soaks up medicines in the gut and can strip away enough of the drug to blunt the muscle strength it restores in Lambert-Eaton myasthenic syndrome, and it carries the only major rating of the 44 entries, reason enough to treat this list with real care. The largest group, 21 ingredients that boost the same acetylcholine signaling the drug relies on (huperzine A is one), can pile onto that effect and bring cramping, sweating, or nausea.

Seizures matter here too. Amifampridine itself can make seizures more likely, and six ingredients, ginkgo among them, may lower that threshold further. The remaining absorption-related entries are mostly fibers and charcoals; space them well apart from your dose and let the full report and your pharmacist settle the details. Thirty-three entries are moderate and ten minor, but the charcoal warning is the one to act on first.

— , Clinical Pharmacist · July 18, 2026

Major 1 Moderate 33 Minor 10 No known interaction 1,408

This box checks one ingredient at a time (like turmeric or magnesium). Taking a supplement product with a whole label of ingredients? Search the product instead — we check every ingredient on it ↓

Top Ingredient Interactions

Amifampridine: Top Interactions at a Glance

The most significant Amifampridine supplement & herbal interactions, colored by severity. Tap any ingredient to open the full report for that pair.

Showing the 12 highest-ranked of 44 interacting ingredients — plus 1,408 more checked with no known interaction. See the complete ranked list.

Start here

The Major Interactions to Know About

The most clinically significant Amifampridine + supplement combinations in our database, best-documented first. Open any card for the full report.

Major Likelihood Probable Activated Charcoal + Amifampridinei

Activated charcoal reduces systemic exposure to many drugs, including those that undergo enterohepatic recirculation, regardless of the route of administration.

Read the full interaction
The complete list

Every Supplement Checked Against Amifampridine

All 1,452 ingredients in our database, ranked by severity — 44 with a Amifampridine interaction on file and 1,408 with none found. Filter by severity or search any ingredient; hover the for what each ingredient is.

Looking for an interaction with a specific supplement product? Search products instead ↓

Straight answers

Can You Take It With Amifampridine?

One-line answers, one card per combination — scroll through today’s 20 and tap any card for the full report. A different set rotates in daily until every combination has had its turn.

Can you take Dimethylsulfoxide (dmso) with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, DMSO might increase the risk of cholinergic adverse effects when taken with cholinergic drugs.

Full Dimethylsulfoxide (dmso) + Amifampridine answer

Can you take European Barberry with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking European barberry with cholinergic drugs might decrease the effects of cholinergic drugs.

Full European Barberry + Amifampridine answer

Can you take Bael with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Bael leaf extract shows acetylcholinesterase (AChE) inhibitory activity in vitro.

Full Bael + Amifampridine answer

Can you take Biofeedback with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. There is some concern that electroencephalogram (EEG) biofeedback might lower the seizure threshold in some patients.

Full Biofeedback + Amifampridine answer

Can you take Boxwood with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Evidence from in vitro research suggests that boxwood extract can inhibit acetylcholinesterase activity.

Full Boxwood + Amifampridine answer

Can you take Calamus with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concurrent use of cholinergic drugs and calamus might have an additive effect and increase the risk of cholinergic effects.

Full Calamus + Amifampridine answer

Can you take Clubmoss with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Evidence from in vitro research suggests that clubmoss extract can inhibit acetylcholinesterase activity.

Full Clubmoss + Amifampridine answer

Can you take Dendrobium with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. The dendrobium constituent dendrobine is reported to have convulsant effects.

Full Dendrobium + Amifampridine answer

Can you take Ginkgo with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking ginkgo with drugs that lower the seizure threshold might increase the risk for convulsions.

Full Ginkgo + Amifampridine answer

Can you take Guar Gum with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Guar gum might reduce the absorption of some oral drugs, potentially decreasing their effectiveness.

Full Guar Gum + Amifampridine answer

Can you take Gum Arabic with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, gum arabic can alter the absorption of oral drugs due to its fiber content.

Full Gum Arabic + Amifampridine answer

Can you take Huperzine A with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concurrent use of huperzine A with cholinergic drugs might increase the effects and side effects of these medications.

Full Huperzine A + Amifampridine answer

Can you take Iboga with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, iboga might have additive effects with cholinergic drugs.

Full Iboga + Amifampridine answer

Can you take Marjoram with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. In vitro research suggests that marjoram extract can inhibit acetylcholinesterase activity.

Full Marjoram + Amifampridine answer

Can you take Melatonin with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking melatonin with drugs that lower the seizure threshold might increase the risk of seizure activity.

Full Melatonin + Amifampridine answer

Can you take Nutmeg with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of nutmeg with other cholinergic drugs might have additive effects and increase the risk of cholinergic side...

Full Nutmeg + Amifampridine answer

Can you take Phosphatidylserine with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, phosphatidylserine might have additive effects with cholinergic drugs.

Full Phosphatidylserine + Amifampridine answer

Can you take Poria Mushroom with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, poria mushroom might have additive effects when used with cholinergic drugs.

Full Poria Mushroom + Amifampridine answer

Can you take Purple Nut Sedge with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. In vitro, purple nut sedge dose-dependently inhibits acetylcholinesterase (AChE).

Full Purple Nut Sedge + Amifampridine answer

Can you take Rauwolscine with Amifampridine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking rauwolscine with seizure threshold lowering drugs might increase the risk of adverse convulsant effects.

Full Rauwolscine + Amifampridine answer
Read the list like a pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction 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.
  • Possible. 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
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each entry links to a full report with the clinical detail, likelihood, evidence level, and citations for that exact combination.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

How Does Our Interaction Checker Work?

Behind every verdict on this page is a category system. Our source database doesn’t document supplement interactions drug-by-drug — it documents them against groups of medications that behave the same way (for example, “drugs processed by the CYP3A4 liver enzyme” or “blood-thinning medications”).

So the check works in three steps: (1) Amifampridine is classified into the pharmacology categories it belongs to, (2) every supplement interaction documented against any of those categories is inherited by Amifampridine, and (3) each ingredient keeps its own severity, likelihood, and evidence grades from the underlying record. That’s why one supplement can carry several records for one drug — it may interact through more than one category.

Amifampridine sits in 3 interaction categories. Open any one to see what the group means:

Cholinergic Drugs 21 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

21 of the supplement ingredients on this page reach Amifampridine through this category.

Oral Drugs 17 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

17 of the supplement ingredients on this page reach Amifampridine through this category.

Seizure Threshold Lowering Drugs 6 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

6 of the supplement ingredients on this page reach Amifampridine through this category.

Check a real product

Take a Supplement Product? Check the Whole Bottle Against Amifampridine

Most supplements are combination products — and the interaction may come from an ingredient you didn’t buy it for. Search any product below (or scan its label) and we’ll check every ingredient on it against Amifampridine.

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Pharmacist Counseling Corner

Amifampridine & Supplements: Common Questions

What supplements interact with Amifampridine?
In our interaction database, 44 supplement and herbal ingredients have an interaction with Amifampridine on file — 1 rated major, 33 moderate, and 10 minor. That number sounds scarier than it is: severity matters far more than the count, which is why the list on this page is ranked instead of alphabetical. Start at the top. The highest-ranked right now: Activated Charcoal, Betel Nut, Coffee Charcoal.
Which Amifampridine supplement interactions are the most serious?
The 1 major-rated combination — led by Activated Charcoal — deserve real caution: these are the ones generally best avoided, or used only with your prescriber watching. If you take any of them today, don't panic and don't stop anything abruptly — call your pharmacist first. Jump to the ranked list.
Can I take vitamins or supplements while on Amifampridine?
That depends entirely on which supplement. The honest answer for Amifampridine is in the ranked list above — and if what you take is a combination product with a dozen ingredients, don't check them one by one: photograph the label with our scanner and we'll check the whole thing at once. Try the label scanner or the interaction checker.
Do brands like Ruzurgi have the same supplement interactions as Amifampridine?
Yes — Ruzurgi, Firdapse all contain Amifampridine, so everything on this page applies to them equally. Interactions belong to the active drug, never to the brand on the box; the same is true of generics.
Where do these interaction ratings come from?
Every rating comes from the Natural Medicines database — the same evidence-graded reference pharmacists and hospitals use — and each interaction carries three separate grades: severity (how bad it can be), likelihood (how well it's documented in studies and case reports), and an evidence level. Our pharmacists review the content; we never let an AI decide an interaction. See how to read the ratings and our editorial policy.
What about Amifampridine and my other medications?
This page covers Amifampridine against supplements and herbal ingredients. Checking Amifampridine against your other prescription or OTC medications is a different tool — our drug interaction checker covers that side. Head to the drug–drug interaction checker.

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

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Sourcing

Where This Data Comes From — and Why You Can Trust It

🧪 Licensed clinical database

Every interaction verdict on this page comes from Natural Medicines Pro (TRC Healthcare / Therapeutic Research) — the same evidence-graded reference used by pharmacists and hospitals. We license this data directly; we do not scrape it, and no AI invents an interaction.

🧑‍⚕️ Pharmacist review

This page is curated and coded by , Clinical Pharmacist, with additional analysis by the HelloPharmacist Pharmacist Team. Editorial commentary is ours; the licensed interaction records are shown as sourced.

🔄 Kept current

Our interaction database refreshes on a weekly cycle, and this page re-checks the live database every time it’s rebuilt — what you see reflects the database as of October 6, 2026.

🔍 Full transparency

How every dataset on this site is sourced, licensed, and updated is documented publicly: our data sources · editorial policy · how we use AI.

Educational information, not medical advice. An interaction being on file does not mean it will happen to you — and absence of one is not proof of safety. Never start or stop a medication or supplement without talking to your pharmacist or doctor.