Medication interaction hub

What Supplements Interact with Mecamylamine?

Mecamylamine brand name: Inversine. Every interaction below applies to the brands too.

136 Interactions 4 Major 111 Moderate 21 Minor
Curated & coded by · Clinical Pharmacist · Updated September 26, 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 Mecamylamine? 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 Mecamylamine 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.

Mecamylamine (Inversine) is a potent blood pressure medicine, and its interaction list warrants real vigilance, since 119 of the 136 ingredients on file affect blood pressure themselves. Most add to the drug's effect and can drop pressure too far, fish oil among them, while a few push the other way. Tyramine, a compound concentrated in aged and fermented foods, is one of those and carries a major rating for raising blood pressure and undercutting the drug.

The other 17 entries change how much of an oral dose reaches you. Activated charcoal is the major one there; it can soak up mecamylamine in the gut, so keep it well separated from your pill and let the full report and your pharmacist settle the timing. With 111 entries rated moderate and 21 minor, most of this page is manageable, but the four major interactions are the ones worth knowing by name.

— , Clinical Pharmacist · July 18, 2026

Major 4 Moderate 111 Minor 21 No known interaction 1,316

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

Mecamylamine: Top Interactions at a Glance

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

Showing the 12 highest-ranked of 136 interacting ingredients — plus 1,316 more checked with no known interaction. See the complete ranked list.

Start here

The Major Interactions to Know About

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

Major Likelihood Likely American Hellebore + Mecamylaminei

American hellebore can have potent cardiovascular effects due to the toxic steroid ester alkaloids it contains.

Read the full interaction Major Likelihood Likely Tyramine + Mecamylaminei

Tyramine may increase the risk of hypertension and reduce the effects of antihypertensive drugs.

Read the full interaction Major Likelihood Probable Activated Charcoal + Mecamylaminei

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 American Mistletoe + Mecamylaminei

American mistletoe contains phoratoxin, a compound toxic to humans that induces smooth muscle contraction and vasoconstriction, potentially increasing blood pre...

Read the full interaction
The complete list

Every Supplement Checked Against Mecamylamine

All 1,452 ingredients in our database, ranked by severity — 136 with a Mecamylamine interaction on file and 1,316 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 Mecamylamine?

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 L-arginine with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of L-arginine and antihypertensive drugs may increase the risk of hypotension.

Full L-arginine + Mecamylamine answer

Can you take L-citrulline with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of L-citrulline with antihypertensive drugs might have additive effects and increase the chance of hypotensio...

Full L-citrulline + Mecamylamine answer

Can you take American Hellebore with Mecamylamine?

Major Use real caution — this is a major-rated interaction, generally best avoided or used only under close supervision. American hellebore can have potent cardiovascular effects due to the toxic steroid ester alkaloids it contains.

Full American Hellebore + Mecamylamine answer

Can you take Tyramine with Mecamylamine?

Major Use real caution — this is a major-rated interaction, generally best avoided or used only under close supervision. Tyramine may increase the risk of hypertension and reduce the effects of antihypertensive drugs.

Full Tyramine + Mecamylamine answer

Can you take Activated Charcoal with Mecamylamine?

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 + Mecamylamine answer

Can you take American Mistletoe with Mecamylamine?

Major Use real caution — this is a major-rated interaction, generally best avoided or used only under close supervision. American mistletoe contains phoratoxin, a compound toxic to humans that induces smooth muscle contraction and vasoconstriction, potentially...

Full American Mistletoe + Mecamylamine answer

Can you take Apple with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Consuming apple juice with antihypertensive drugs might interfere with blood pressure control.

Full Apple + Mecamylamine answer

Can you take Banaba with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of banaba and antihypertensive drugs might cause additive effects.

Full Banaba + Mecamylamine answer

Can you take Beer with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use may interfere with blood pressure control.

Full Beer + Mecamylamine answer

Can you take Casein Peptides with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, combining these casein peptides with antihypertensive drugs might increase the risk of hypotension.

Full Casein Peptides + Mecamylamine answer

Can you take Cat's Claw with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking cat's claw with antihypertensive drugs might increase the risk of hypotension.

Full Cat's Claw + Mecamylamine answer

Can you take Celery with Mecamylamine?

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

Full Celery + Mecamylamine answer

Can you take Coca with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, coca might reduce the effects of antihypertensive drugs.

Full Coca + Mecamylamine answer

Can you take Cod Liver Oil with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking cod liver oil with antihypertensive drugs might increase the risk of hypotension.

Full Cod Liver Oil + Mecamylamine answer

Can you take Coffee Charcoal with Mecamylamine?

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 + Mecamylamine answer

Can you take Docosahexaenoic Acid (dha) with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking DHA with antihypertensive drugs might increase the risk of hypotension.

Full Docosahexaenoic Acid (dha) + Mecamylamine answer

Can you take Eicosapentaenoic Acid (epa) with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking EPA with antihypertensive drugs might increase the risk of hypotension.

Full Eicosapentaenoic Acid (epa) + Mecamylamine answer

Can you take European Mandrake with Mecamylamine?

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 + Mecamylamine answer

Can you take Fever Bark with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, fever bark might alter the effects of antihypertensive drugs.

Full Fever Bark + Mecamylamine answer

Can you take Fish Oil with Mecamylamine?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking fish oil with antihypertensive drugs might increase the risk of hypotension.

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

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

Antihypertensive Drugs 119 ingredients

Blood-pressure-lowering medications. Supplements that lower (or raise) blood pressure can amplify or fight these drugs.

119 of the supplement ingredients on this page reach Mecamylamine 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 Mecamylamine through this category.

Related: does Mecamylamine deplete any nutrients?

Mecamylamine has 1 reported nutrient association in the research literature — see the Mecamylamine nutrient depletion report.

Check a real product

Take a Supplement Product? Check the Whole Bottle Against Mecamylamine

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 Mecamylamine.

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Products that contain Mecamylamine-interacting ingredients

Real supplements from the NIH label database that contain the top interacting ingredients on this page — each one is worth a full label check before combining with Mecamylamine.

TNT Thermanite by GEC Genetic Edge Compounds contains Tyramine Diablos ECA Fire Caps by Innovative Laboratories contains Tyramine Ultimate Burn by Schwartz Laboratories contains Tyramine Final Cutz by Infinite Labs contains Tyramine
Pharmacist Counseling Corner

Mecamylamine & Supplements: Common Questions

What supplements interact with Mecamylamine?
In our interaction database, 136 supplement and herbal ingredients have an interaction with Mecamylamine on file — 4 rated major, 111 moderate, and 21 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: American Hellebore, Tyramine, Activated Charcoal.
Which Mecamylamine supplement interactions are the most serious?
Focus on the major group: American Hellebore, Tyramine, Activated Charcoal and American Mistletoe. 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 Mecamylamine?
That depends entirely on which supplement. The honest answer for Mecamylamine 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 Inversine have the same supplement interactions as Mecamylamine?
Yes — Inversine all contain Mecamylamine, 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.
Does Mecamylamine deplete any vitamins or nutrients?
It might — Mecamylamine has 1 reported nutrient-depletion association in the research literature, which is a different question from interactions: instead of a supplement changing the drug, the drug may lower a nutrient over time. See the Mecamylamine nutrient depletion report for the specifics and what to discuss with your pharmacist.
What about Mecamylamine and my other medications?
This page covers Mecamylamine against supplements and herbal ingredients. Checking Mecamylamine 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 September 26, 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.