Medication interaction hub

What Supplements Interact with Physostigmine?

Physostigmine brand names: Eserine, Antilirium. Every interaction below applies to the brands too.

39 Interactions 1 Major 28 Moderate 10 Minor
Curated & coded by · Clinical Pharmacist · Updated September 23, 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 Physostigmine? 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 Physostigmine 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.

The single biggest supplement risk with physostigmine (Antilirium) is activated charcoal, the only entry of 39 rated major. Charcoal soaks up medications in the gut and can sharply cut how much physostigmine the body gets, a serious matter for a drug used to reverse dangerous anticholinergic poisoning, where a weakened dose can mean a failed rescue. This list warrants real care, not a shrug.

Beyond charcoal, the pattern is consistent. Twenty-one of these ingredients, huperzine A among them, do a gentler version of what physostigmine itself does, raising acetylcholine, so stacking them can pile cholinergic side effects on top of the drug's intended action. A second cluster, mostly fibers and gums such as glucomannan, can blunt how well an oral dose is absorbed, so keep them well separated in time. With 28 entries rated moderate and 10 minor, nothing here requires dropping supplements wholesale, but charcoal is the one that can quietly undo the drug altogether.

— , Clinical Pharmacist · July 18, 2026

Major 1 Moderate 28 Minor 10 No known interaction 1,413

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

Physostigmine: Top Interactions at a Glance

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

Showing the 12 highest-ranked of 39 interacting ingredients — plus 1,413 more checked with no known interaction. See the complete ranked list.

Start here

The Major Interactions to Know About

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

Major Likelihood Probable Activated Charcoal + Physostigminei

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 Physostigmine

All 1,452 ingredients in our database, ranked by severity — 39 with a Physostigmine interaction on file and 1,413 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 Physostigmine?

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 Bacopa with Physostigmine?

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

Full Bacopa + Physostigmine answer

Can you take Poria Mushroom with Physostigmine?

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 + Physostigmine answer

Can you take Marshmallow with Physostigmine?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, mucilage in marshmallow might impair absorption of oral drugs.

Full Marshmallow + Physostigmine answer

Can you take Xanthan Gum with Physostigmine?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, xanthan gum can alter the absorption of oral drugs due to its fiber qualities.

Full Xanthan Gum + Physostigmine answer

Can you take Deanol with Physostigmine?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, deanol might increase the effects and adverse effects of cholinergic drugs.

Full Deanol + Physostigmine answer

Can you take Activated Charcoal with Physostigmine?

Major Use real caution — this is a major-rated interaction, generally best avoided or used only under close supervision. Activated charcoal reduces systemic exposure to many drugs, including those that undergo enterohepatic recirculation, regardless of the rout...

Full Activated Charcoal + Physostigmine answer

Can you take Betel Nut with Physostigmine?

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

Full Betel Nut + Physostigmine answer

Can you take Coffee Charcoal with Physostigmine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Coffee charcoal can reduce the absorption of orally administered drugs and should be separated from oral drug administration by at least two...

Full Coffee Charcoal + Physostigmine answer

Can you take European Mandrake with Physostigmine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concurrent use might increase absorption of some drugs because of inhibited gastrointestinal (GI) motility caused by European...

Full European Mandrake + Physostigmine answer

Can you take Glucomannan with Physostigmine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, glucomannan may decrease absorption of drugs taken orally.

Full Glucomannan + Physostigmine answer

Can you take Arenaria Rubra with Physostigmine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Arenaria rubra, by inhibiting acetylcholinesterase, may theoretically interact with other acetylcholinesterase inhibitors like donepezil and...

Full Arenaria Rubra + Physostigmine answer

Can you take Bael with Physostigmine?

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 + Physostigmine answer

Can you take Boxwood with Physostigmine?

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 + Physostigmine answer

Can you take Calamus with Physostigmine?

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 + Physostigmine answer

Can you take Clubmoss with Physostigmine?

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 + Physostigmine answer

Can you take Dimethylsulfoxide (dmso) with Physostigmine?

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) + Physostigmine answer

Can you take European Barberry with Physostigmine?

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 + Physostigmine answer

Can you take Guar Gum with Physostigmine?

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 + Physostigmine answer

Can you take Gum Arabic with Physostigmine?

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 + Physostigmine answer

Can you take Huperzine A with Physostigmine?

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 + Physostigmine 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) Physostigmine is classified into the pharmacology categories it belongs to, (2) every supplement interaction documented against any of those categories is inherited by Physostigmine, 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.

Physostigmine 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 Physostigmine 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 Physostigmine through this category.

Acetylcholinesterase (Ache) Inhibitors 2 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.

2 of the supplement ingredients on this page reach Physostigmine through this category.

Check a real product

Take a Supplement Product? Check the Whole Bottle Against Physostigmine

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 Physostigmine.

Search a supplement product

Type a product name, brand, or UPC — smart search across our full catalog.

Grounded search over our product catalog — every verdict comes from our interaction database, never AI guesswork. How we use AI

Or scan the bottle

Photograph any Supplement Facts panel — we read the ingredients and check each one against your medications. Free, in seconds.

Open the label scanner

Prefer typing? The interaction checker looks up products by name too.

Pharmacist Counseling Corner

Physostigmine & Supplements: Common Questions

What supplements interact with Physostigmine?
Our database currently documents 39 ingredients with a known Physostigmine interaction (1 major, 28 moderate, 10 minor). The practical move: scan the major group first, then look up the exact supplements you take rather than reading all 39. The highest-ranked right now: Activated Charcoal, Betel Nut, Coffee Charcoal.
Which Physostigmine supplement interactions are the most serious?
Focus on the major group: Activated Charcoal. A major rating means the combination can be clinically significant, not that harm is guaranteed — but it's exactly the kind of thing to run past your pharmacist before your next dose, not after. Jump to the ranked list.
Can I take vitamins or supplements while on Physostigmine?
Plenty of supplements coexist fine with Physostigmine; a shorter list does not. Rather than memorizing it, check the specific ingredients on your labels — the ranked list above covers every one we've checked, and multi-ingredient products can be checked label-by-label with our scanner. Try the label scanner or the interaction checker.
Do brands like Eserine have the same supplement interactions as Physostigmine?
Yes — Eserine, Antilirium all contain Physostigmine, 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 Physostigmine and my other medications?
This page covers Physostigmine against supplements and herbal ingredients. Checking Physostigmine 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

Where next

More Free Pharmacist Tools

Supplement interaction checker Check any supplement or product against your medications Supplement label scanner Photograph a Supplement Facts panel; we check every ingredient Browse medications A–Z Every drug we’ve checked against herbs & supplements Ingredient directory Every vitamin, herb & mineral we track, with interaction data Product directory Look up any bottle by name, brand, or barcode Ask a pharmacist Free, personal answer from our licensed team
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 September 23, 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.