Drug & supplement interaction

Hemp Agrimony + Naltrexone Hydrochloride

Naltrexone Hydrochloride brand name: Revia.

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

Hemp Agrimony has a moderate interaction with Naltrexone Hydrochloride. Hemp agrimony contains hepatotoxic pyrrolizidine alkaloids (PA).

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

Hemp Agrimony and Naltrexone Hydrochloride

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

Moderate

HEPATOTOXIC DRUGS

Why this applies to Naltrexone Hydrochloride

Naltrexone Hydrochloride falls under HEPATOTOXIC DRUGS — the group Hemp Agrimony interacts with.

Hemp agrimony contains hepatotoxic pyrrolizidine alkaloids (PA). Theoretically, using hemp agrimony with hepatotoxic drugs might have additive adverse effects on the liver. Some drugs that can adversely affect the liver include acetaminophen (Tylenol and others), amiodarone (Cordarone), carbamazepine (Tegretol), isoniazid (INH), methotrexate (Rheumatrex), methyldopa (Aldomet), fluconazole (Diflucan), itraconazole (Sporanox), erythromycin (Erythrocin, Ilosone, others), phenytoin (Dilantin), lovastatin (Mevacor), pravastatin (Pravachol), simvastatin (Zocor), and many 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 concern with pairing hemp agrimony and naltrexone. Naltrexone isn't a prodrug, so this isn't about one changing how well the other works. Instead, both can be tough on your liver. Naltrexone already gets processed by the liver and, especially at higher doses, can bump up your liver enzymes. Hemp agrimony can contain pyrrolizidine alkaloids, natural compounds known to injure the liver.

Stacking two liver stressors together could, in theory, add up. I'll be honest though: this is based on how these substances behave, not on real patient studies, so the actual risk isn't well proven. Still, watch for warning signs like yellowing skin or eyes, dark urine, belly pain, or unusual tiredness. Given the safety questions around hemp agrimony overall, please check with your pharmacist or doctor before using it.

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 Naltrexone Hydrochloride 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. Naltrexone Hydrochloride)
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.

Everything else you take

See Every Supplement That Interacts With Naltrexone Hydrochloride

This page covers Hemp Agrimony only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Naltrexone Hydrochloride page lists 56 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Beer (major), Siberian Cocklebur (major), Wine (major) and Ashwagandha (moderate).

Open the Naltrexone Hydrochloride 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 Naltrexone Hydrochloride 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 Naltrexone Hydrochloride 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

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

29 days ago today
Medication Naltrexone Hydrochloride
Steady interest

#1,858 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 Naltrexone

What Is Naltrexone Used For?

Brand name: Revia

Naltrexone Hydrochloride tablets are used to treat alcohol dependence and to block the effects of opioids in people being treated for opioid dependence. It works best as part of a full treatment program that includes counseling and support.

The extended-release injectable suspension (brand name Vivitrol) is used to treat alcohol dependence in patients who are already not drinking before starting treatment, and to prevent relapse to opioid dependence after a patient has completed opioid detoxification. Vivitrol must always be part of a comprehensive treatment program that includes psychosocial support.

See full Naltrexone 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 Naltrexone Hydrochloride, 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 Naltrexone Hydrochloride supplement interactions › Every supplement checked against Naltrexone Hydrochloride, ranked by severity Naltrexone 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 Naltrexone Hydrochloride Together: Common Questions

Can you take Hemp Agrimony with Naltrexone Hydrochloride?
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 Naltrexone Hydrochloride 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 Naltrexone Hydrochloride 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.