Drug & supplement interaction

Lovage + Methyclothiazide, Pargyline

Methyclothiazide, Pargyline brand name: Eutron.

Moderate Interaction
Medically reviewed by · Updated September 2026
The bottom line Moderate

Lovage has a moderate interaction with Methyclothiazide, Pargyline. Theoretically, lovage root might interfere with diuretic therapy due to its aquaretic effects.

Read the full interaction report
SeverityModerate
LikelihoodPossible
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Lovage and Methyclothiazide, Pargyline

Here is the interaction we found between these two, with the evidence behind it.

Moderate

DIURETIC DRUGS

Why this applies to Methyclothiazide, Pargyline

Methyclothiazide, Pargyline falls under DIURETIC DRUGS — the group Lovage interacts with.

Theoretically, lovage root might interfere with diuretic therapy due to its aquaretic effects.
Some diuretics include chlorothiazide (Diuril), chlorthalidone (Thalitone), furosemide (Lasix), hydrochlorothiazide (HCTZ, Hydrodiuril, Microzide), and others.
Severity Moderate Likelihood Possible Evidence D

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.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Your medication Eutron combines methyclothiazide, a thiazide-type water pill, with pargyline, an older blood pressure medicine. The piece that matters here is the thiazide. Lovage has a mild "aquaretic" effect, meaning it nudges your kidneys to pass more water and urine. Stack that on top of a diuretic and, in theory, you could lose a bit more fluid and minerals than expected. That might show up as extra urination, lightheadedness when you stand, dry mouth, or muscle cramps from low potassium or sodium.

To be fair, this is a theoretical concern based on how the herb works, not from solid human studies, and small culinary amounts in cooking are unlikely to cause trouble. Concentrated lovage supplements or the essential oil are where I'd be more cautious. Please run it by your pharmacist or doctor before combining them.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Robbers JE, Tyler VE. Tyler's Herbs of Choice: The Therapeutic Use of Phytomedicinals. New York, NY: The Haworth Herbal Press, 1999.

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction 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.
  • PossibleInteraction 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.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Lovage Also Interacts With Other Medications

Lovage has 74 moderate known drug interactions in our database — the Methyclothiazide, Pargyline one above is one of them. If you take anything else, check it against the full list below.

Moderate 74 No known interaction 2,756 (incl. Methyclothiazide, Pargyline)
Taking anything else?

Check Another of Your Medications Against Lovage

Covers the 2,830 medications we’ve checked against Lovage. Pick one to open its full report.

Everything else you take

See Every Supplement That Interacts With Methyclothiazide, Pargyline

This page covers Lovage only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Methyclothiazide, Pargyline page lists 227 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Asarabacca (major) and Dolomite (major).

By severity: 10 major · 192 moderate · 25 minor.

From our pharmacist’s overview on the Methyclothiazide, Pargyline page

“Few blood pressure medicines demand as much supplement caution as Eutron, which pairs methyclothiazide, a water pill, with pargyline, an older MAO inhibitor. Ten of the 227 ingredients on file rate major; learn those first.”

Reviewed by 2 · Jul 18, 2026

Open the Methyclothiazide, Pargyline interaction page

One more smart check

Taking Lovage as Part of a Dietary Supplement Product? Check It for Interactions

We hold 57 real supplement products containing Lovage, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Lovage. Your product may carry other ingredients that interact with Methyclothiazide, Pargyline too, on top of Lovage — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Lovage and Methyclothiazide, Pargyline 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 Lovage
Top half

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

29 days ago today
Medication Methyclothiazide, Pargyline
Steady interest

#1,521 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.

Supplement

About Lovage

What is Lovage?

  • Digestive upset and bloating
  • Mild urinary tract flushing
  • Water retention (mild diuretic)
  • Coughs and congestion
  • Menstrual discomfort
  • Culinary flavoring

Lovage is a celery-like herb traditionally used for digestion, bloating, and as a mild diuretic to flush the urinary tract. Human evidence for these uses is very limited, and while culinary amounts are generally well tolerated, concentrated supplements and the essential oil should be used cautiously. Pregnant and breastfeeding people should avoid it.

Read the full Lovage monograph & all interactions
Keep checking

Other Drugs & Lovage

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

0Major
74Moderate
0Minor
2,755No known interaction
74 Moderate 2,755 No interaction
Moderate

74 interactions

Showing 60 of 74 moderate interactions — see all 74 on the Lovage page.

No interaction 2,755 drugs checked — show the list

We also checked Lovage against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,755 medications checked with no known interaction — see the full Lovage list.

See the full Lovage interactions page
See every supplement checked against Methyclothiazide, Pargyline, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Lovage monograph › Uses, safety, and every drug interaction in one place Methyclothiazide, Pargyline supplement interactions › Every supplement checked against Methyclothiazide, Pargyline, 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 Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Lovage and Methyclothiazide, Pargyline Together: Common Questions

Can you take Lovage with Methyclothiazide, Pargyline?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Lovage and Methyclothiazide, Pargyline interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

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

Still Have a Question About Methyclothiazide, Pargyline and Lovage?

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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.