Medication interaction hub

What Supplements Interact with Benztropine?

Benztropine brand names: Cogentin, Cogentin Injection. Every interaction below applies to the brands too.

46 Interactions 3 Major 32 Moderate 11 Minor
Curated & coded by · Clinical Pharmacist · Updated September 24, 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 Benztropine? 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 Benztropine 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.

People usually take benztropine (Cogentin) for Parkinson's tremor or for the stiffness and restlessness antipsychotic drugs can cause, and this is a supplement list to approach with genuine care. Three of its 46 interactions rate major: activated charcoal, which can soak the drug up in the gut before it works, and two alkaloid herbs, henbane and scopolia, that pile the same acetylcholine-blocking action on top of benztropine's own, worsening dry mouth, blurred vision, constipation, and confusion.

Most of the 32 moderate entries repeat those two patterns. Herbs sold for memory push acetylcholine up and can work against the drug, which matters because cognition supplements appeal to exactly this group of patients. Fibers, gums, and charcoals can blunt absorption of any pill swallowed, so keep them well apart from your dose. The 11 minor entries carry the least weight; learn the three major names before anything else.

— , Clinical Pharmacist · July 18, 2026

Major 3 Moderate 32 Minor 11 No known interaction 1,406

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 ↓

Most Viewed Ingredient Interactions

Benztropine: Top Interactions at a Glance

The Benztropine supplement & herbal interactions people checked most in the last 24 hours, colored by severity. Tap any ingredient to open the full report for that pair.

Showing the 12 highest-ranked of 46 interacting ingredients — plus 1,406 more checked with no known interaction. See the complete ranked list.

Start here

The Most-Checked Benztropine Combinations Today

The Benztropine + supplement pages people viewed most in the last 24 hours (resets at midnight). Open any card for the full report.

Moderate Likelihood Possible Slippery Elm + Benztropinei

Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.

Read the full interaction Moderate Likelihood Possible Jimson Weed + Benztropinei

Theoretically, jimson weed may increase anticholinergic effects and adverse effects.

Read the full interaction Moderate Likelihood Possible Thyme + Benztropinei

Theoretically, concurrent use of anticholinergic drugs and thyme essential oil might reduce the effects of anticholinergic drugs.

Read the full interaction Moderate Likelihood Possible Huperzine A + Benztropinei

Theoretically, huperzine A might decrease the effects of anticholinergic drugs.

Read the full interaction Major Likelihood Probable Activated Charcoal + Benztropinei

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

Read the full interaction Major Likelihood Probable Henbane + Benztropinei

Concomitant use of henbane can have additive anticholinergic effects and adverse effects with amantadine, antihistamines, atropine, belladonna alkaloids, hyoscy...

Read the full interaction
The complete list

Every Supplement Checked Against Benztropine

All 1,452 ingredients in our database, ranked by severity — 46 with a Benztropine interaction on file and 1,406 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 Benztropine?

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 Slippery Elm with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.

Full Slippery Elm + Benztropine answer

Can you take Jimson Weed with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, jimson weed may increase anticholinergic effects and adverse effects.

Full Jimson Weed + Benztropine answer

Can you take Thyme with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concurrent use of anticholinergic drugs and thyme essential oil might reduce the effects of anticholinergic drugs.

Full Thyme + Benztropine answer

Can you take Huperzine A with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, huperzine A might decrease the effects of anticholinergic drugs.

Full Huperzine A + Benztropine answer

Can you take Corkwood Tree with Benztropine?

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

Full Corkwood Tree + Benztropine answer

Can you take European Barberry with Benztropine?

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

Full European Barberry + Benztropine answer

Can you take Guar Gum with Benztropine?

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 + Benztropine answer

Can you take Gum Arabic with Benztropine?

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 + Benztropine answer

Can you take Iboga with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, iboga might decrease the effectiveness of anticholinergic drugs.

Full Iboga + Benztropine answer

Can you take Marjoram with Benztropine?

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 + Benztropine answer

Can you take Methylene Blue with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Concomitant use may increase anticholinergic effects and adverse effects.

Full Methylene Blue + Benztropine answer

Can you take Nutmeg with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of nutmeg and anticholinergic drugs might decrease the effectiveness of either agent.

Full Nutmeg + Benztropine answer

Can you take Phosphatidylserine with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, phosphatidylserine might decrease the effectiveness anticholinergic drugs.

Full Phosphatidylserine + Benztropine answer

Can you take Poria Mushroom with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, poria mushroom might decrease the clinical effects of anticholinergic drugs.

Full Poria Mushroom + Benztropine answer

Can you take Purple Nut Sedge with Benztropine?

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 + Benztropine answer

Can you take Sage with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, sage might decrease the clinical effects of anticholinergic drugs.

Full Sage + Benztropine answer

Can you take Syrian Rue with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, Syrian rue might decrease the effects of anticholinergic drugs.

Full Syrian Rue + Benztropine answer

Can you take Teazle with Benztropine?

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

Full Teazle + Benztropine answer

Can you take Toothed Clubmoss with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. In animal models, toothed clubmoss and huperzine A, an active constituent of toothed clubmoss, reversed cognitive deficits induced by scopol...

Full Toothed Clubmoss + Benztropine answer

Can you take Tragacanth with Benztropine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, tragacanth might alter absorption of oral drugs.

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

Benztropine sits in 2 interaction categories. Open any one to see what the group means:

Anticholinergic Drugs 30 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.

30 of the supplement ingredients on this page reach Benztropine 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 Benztropine through this category.

About Benztropine

Benztropine is a prescription medication used to help manage parkinsonism and to control drug-induced movement side effects (extrapyramidal disorders) caused by certain antipsychotic medications.

Generic name: Benztropine  ·  Brand names: Cogentin, Cogentin Injection.

See the full Benztropine drug information
Check a real product

Take a Supplement Product? Check the Whole Bottle Against Benztropine

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 Benztropine.

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

Benztropine & Supplements: Common Questions

What supplements interact with Benztropine?
In our interaction database, 46 supplement and herbal ingredients have an interaction with Benztropine on file — 3 rated major, 32 moderate, and 11 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, Henbane, Scopolia.
Which Benztropine supplement interactions are the most serious?
The 3 major-rated combinations — led by Activated Charcoal, Henbane and Scopolia — 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 Benztropine?
That depends entirely on which supplement. The honest answer for Benztropine 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 Cogentin have the same supplement interactions as Benztropine?
Yes — Cogentin, Cogentin Injection all contain Benztropine, 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 Benztropine and my other medications?
This page covers Benztropine against supplements and herbal ingredients. Checking Benztropine 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, or read the full Benztropine drug information.

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 24, 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.