Drug & supplement interaction

Hemp Agrimony + Dexamethasone

Dexamethasone brand names: Decadron, Hexadrol, Dexone, Ozurdex, Dexycu, and others.

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

Hemp Agrimony has a moderate interaction with Dexamethasone. Hemp agrimony contains hepatotoxic pyrrolizidine alkaloids (PA) which are substrates of cytochrome P450 3A4 (CYP3A4).

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

Hemp Agrimony and Dexamethasone

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

Moderate

CYTOCHROME P450 3A4 (CYP3A4) INDUCERS

Why this applies to Dexamethasone

Dexamethasone falls under CYTOCHROME P450 3A4 (CYP3A4) INDUCERS — the group Hemp Agrimony interacts with.

Hemp agrimony contains hepatotoxic pyrrolizidine alkaloids (PA) which are substrates of cytochrome P450 3A4 (CYP3A4). Theoretically, drugs that induce CYP3A4 might increase the conversion of PAs to toxic metabolites. Some drugs that induce CYP3A4 include carbamazepine (Tegretol), phenobarbital, phenytoin (Dilantin), rifampin, rifabutin (Mycobutin), 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

Here's the thing to understand with this pairing: it's not that dexamethasone gets weaker or stronger. Dexamethasone is one of those medicines that can speed up a liver enzyme called CYP3A4. Hemp agrimony, on the other hand, contains pyrrolizidine alkaloids that this same enzyme can turn into liver-toxic byproducts. So the worry runs the other direction than you might expect. By revving up that enzyme, dexamethasone could theoretically make hemp agrimony more harmful to your liver, not the medicine itself becoming riskier.

I'll be honest, this is based on lab work, not real people, so we don't know how big a deal it truly is. But since hemp agrimony already isn't recommended internally because of liver concerns, I'd skip it and check with your pharmacist or doctor first.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Chojkier M. Hepatic sinusoidal-obstruction syndrome: toxicity of pyrrolizidine alkaloids. J Hepatol 2003;39:437-46. PubMed
  2. Wang YP, Yan J, Fu PP, Chou MW. Human liver microsomal reduction of pyrrolizidine alkaloid N-oxides to form the corresponding carcinogenic parent alkaloid. Toxicol Lett 2005;155:411-20. PubMed

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

Hemp Agrimony Also Interacts With Other Medications

Hemp Agrimony has 439 moderate known drug interactions in our database — the Dexamethasone one above is one of them. If you take anything else, check it against the full list below.

Moderate 439 No known interaction 2,391 (incl. Dexamethasone)
Taking anything else?

Check Another of Your Medications Against Hemp Agrimony

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

From our Q&A

Questions About Hemp Agrimony or Dexamethasone

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Hemp Agrimony or Dexamethasone, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Dexamethasone

This page covers Hemp Agrimony only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Dexamethasone page lists 221 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), Lily-of-the-valley (major), St. John's Wort (major) and Acacia Rigidula (moderate).

By severity: 4 major · 182 moderate · 35 minor.

From our pharmacist’s overview on the Dexamethasone page

“People take dexamethasone for serious reasons, a chemotherapy course, an autoimmune flare, brain swelling, so I want anyone on it to give its 221 supplement interactions genuine attention, starting with the four rated major. Grapefruit and St.”

Reviewed by 2 · Jul 18, 2026

Open the Dexamethasone interaction page

One more smart check

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

We hold 3 real supplement products containing Hemp Agrimony, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Hemp Agrimony. Your product may carry other ingredients that interact with Dexamethasone too, on top of Hemp Agrimony — 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 Hemp Agrimony and Dexamethasone 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 Hemp Agrimony
Top half

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

29 days ago today
Medication Dexamethasone
Top 25%

#495 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 Hemp Agrimony

What is Hemp Agrimony?

Hemp Agrimony
  • Digestive complaints
  • Cold and flu symptoms
  • Respiratory conditions
  • Mild fever
  • Traditional 'tonic' or detox use

Hemp agrimony is a traditional European herb that has been used for digestion, colds, and as a general tonic, but there is very little reliable human research to support these uses. More importantly, the plant can contain pyrrolizidine alkaloids that may harm the liver, so most experts do not recommend taking it internally. Talk with your pharmacist or doctor before using any product that contains hemp agrimony.

Read the full Hemp Agrimony monograph & all interactions
Medication

About Dexamethasone

What Is Dexamethasone Used For?

Brand names: Decadron, Hexadrol, Dexone, Ozurdex, Dexycu, Hemady, Dextenza

Dexamethasone is mainly used to calm inflammation and overactive immune responses. Depending on the product, it treats allergic conditions, skin diseases, adrenal and other hormone disorders, and certain bowel diseases.

Some uses belong only to specific products. Hemady tablets are used with other anti-myeloma medicines for adults with multiple myeloma. Dextenza (an eye insert) treats eye inflammation and pain after eye surgery and eye itching from allergic conjunctivitis. Ozurdex (an eye implant) treats macular edema after retinal vein occlusion, non-infectious uveitis of the back of the eye, and diabetic macular edema. Maxidex and dexamethasone sodium phosphate eye drops treat steroid-responsive inflammation of the front of the eye.

See full Dexamethasone drug information
Keep checking

Other Drugs & Hemp Agrimony

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

0Major
439Moderate
0Minor
2,390No known interaction
439 Moderate 2,390 No interaction
Moderate

439 interactions

Showing 60 of 439 moderate interactions — see all 439 on the Hemp Agrimony page.

No interaction 2,390 drugs checked — show the list

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

Showing the 60 most looked-up of 2,390 medications checked with no known interaction — see the full Hemp Agrimony list.

See the full Hemp Agrimony interactions page
See every supplement checked against Dexamethasone, 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
Hemp Agrimony monograph › Uses, safety, and every drug interaction in one place Dexamethasone supplement interactions › Every supplement checked against Dexamethasone, ranked by severity Dexamethasone drug information › The full plain-English guide to this medication 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 Hemp Agrimony and Dexamethasone Together: Common Questions

Can you take Hemp Agrimony with Dexamethasone?
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 Hemp Agrimony and Dexamethasone 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 Dexamethasone and Hemp Agrimony?

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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.