Drug & supplement interaction

English Adder's Tongue + Isocarboxazid

Isocarboxazid brand name: Marplan.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 27, 2026
The bottom line No known interaction

We found no known interaction between English Adder's Tongue and Isocarboxazid in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

English Adder's Tongue and Isocarboxazid

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Isocarboxazid and English Adder's Tongue in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for English Adder's Tongue at all — not against Isocarboxazid, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

English Adder's Tongue safety at a glance

English Adder's To... overall Not established Very little modern safety data exists, so caution is warranted, especially when taken by mouth.
Pregnancy Avoid There is no reliable safety data, so it is best avoided during pregnancy.
Breastfeeding Avoid There is no reliable safety data, so it is best avoided while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Isocarboxazid and English Adder's Tongue? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Isocarboxazid’s Own FDA Label Lists

This is not an interaction — none of it involves English Adder's Tongue. These are the most notable effects listed in the ADVERSE REACTIONS section of Isocarboxazid’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both.

  • Dry mouth
  • Dizziness
  • Nausea

From the ADVERSE REACTIONS section of the FDA label for Isocarboxazid. Read the label on DailyMed › English Adder's Tongue’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no English Adder's Tongue side to compare — that is a limit of the record, not a statement that English Adder's Tongue has no side effects.

Everything else you take

See Every Supplement That Interacts With Isocarboxazid

This page covers English Adder's Tongue only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Isocarboxazid 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 · 55 moderate · 12 minor.

From our pharmacist’s overview on the Isocarboxazid page

“Isocarboxazid (Marplan) is an MAOI antidepressant, and that drug class carries some of the sharpest supplement and food hazards in the pharmacy, so read this list closely rather than skimming it. Fourteen of the 81 entries rate major, and most of the danger runs through tyramine.”

Reviewed by 2 · Jul 18, 2026

Open the Isocarboxazid interaction page

How much people look this up

Where English Adder's Tongue and Isocarboxazid 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 English Adder's Tongue
Steady interest

#1,439 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Isocarboxazid
Steady interest

#1,756 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.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions. English Adder's Tongue is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every English Adder's Tongue reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The English Adder's Tongue and Isocarboxazid records this page draws on were last updated July 11, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About English Adder's Tongue

What is English Adder's Tongue?

  • Minor wounds and skin irritation
  • Bruises and swelling
  • Insect bites
  • Soothing inflamed skin
  • Traditional eye washes (historical)

English Adder's Tongue is a small fern long used in folk medicine as a topical remedy for wounds, bruises, and skin irritation. There is very little modern scientific research to show whether it works or how safe it is, so use it cautiously and treat any health claims with skepticism.

Ophioglossum vulgatum · Ophioglossaceae · Leaves (fronds), sometimes the whole plant · Fresh leaves, salve or ointment, poultice, infused oil, tea

An interaction check asks whether these two react with each other — it does not ask whether English Adder's Tongue is a good idea for someone in your situation. Here is what our English Adder's Tongue record says about it on its own.

English Adder's Tongue: dosing

There is no established standardized dose for English Adder's Tongue. Traditional use focused on topical salves and poultices made from the fresh leaves, with no precise measured amounts.If you find a commercial product, follow the directions on the label and do not exceed them.

From our English Adder's Tongue monograph — the full record covers uses, side effects and every documented interaction.

Read the full English Adder's Tongue monograph & all interactions
Medication

About Isocarboxazid

What Is Isocarboxazid Used For?

Brand name: Marplan

Marplan (isocarboxazid) is indicated for the treatment of depression — specifically, major depressive disorder. Because it carries serious risks, it is not a first-choice antidepressant. Marplan is generally reserved for patients who have not responded adequately to other antidepressants.

Clinical trials showed Marplan to be effective in adult outpatients with major depressive disorder, including those whose depression was accompanied by anxiety symptoms such as panic or phobias. Marplan is not approved for use in children or adolescents.

See full Isocarboxazid drug information
Keep checking

Other Drugs & English Adder's Tongue

Browse every other medication we’ve checked against English Adder's Tongue — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked English Adder's Tongue against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full English Adder's Tongue list.

See the full English Adder's Tongue interactions page
See every supplement checked against Isocarboxazid, ranked by severity
Evidence & sources

English Adder's Tongue References

The 2 sources that drive our English Adder's Tongue monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. English Adder's Tongue is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Herbs at a Glance — NIH NCCIH Source
  2. Herbs and Supplements — MedlinePlus Source

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking English Adder's Tongue and Isocarboxazid Together: Common Questions

Is it safe to take English Adder's Tongue with Isocarboxazid?
We do not list a known interaction between English Adder's Tongue and Isocarboxazid. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Does Isocarboxazid interact with any supplements?
Yes. Isocarboxazid has documented interactions with 81 supplements in our database — English Adder's Tongue is not one of them. The Isocarboxazid interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

English Adder's Tongue monograph Uses, safety profile, and every drug interaction in one place Isocarboxazid drug information The full plain-English guide to this medication Isocarboxazid supplement interactions Every supplement checked against Isocarboxazid, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Isocarboxazid and English Adder's Tongue?

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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.