Drug & supplement interaction

Yerba Mansa + Dronabinol

Dronabinol brand names: Marinol, Syndros.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Yerba Mansa and Dronabinol 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

Yerba Mansa and Dronabinol

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 Dronabinol and Yerba Mansa 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.

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.

Yerba Mansa safety at a glance

Yerba Mansa overall Use caution Human safety data are limited, so use cautiously and discuss with a healthcare professional.
Pregnancy Avoid Not enough safety information is available, so it is best avoided during pregnancy.
Breastfeeding Avoid There is no reliable safety data, so avoid use while breastfeeding.

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

Still wondering about combining Dronabinol and Yerba Mansa? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Dronabinol

Interactions in our licensed database are recorded against drug classes, not just single drug names. Dronabinol is filed under 3 classifications — cytochrome p450 2c9 (cyp2c9) substrates, cytochrome p450 3a4 (cyp3a4) substrates, oral drugs. Yerba Mansa has documented interactions with 1 drug class — the most serious being cns depressants (moderate) — and none of Dronabinol’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Yerba Mansa Does Interact With Other Medications

Yerba Mansa has 248 moderate known drug interactions in our database — Dronabinol isn’t one of them. If you take anything else, check it against the full list below.

Moderate 248 No known interaction 2,582 (incl. Dronabinol)
Taking anything else?

Check Another of Your Medications Against Yerba Mansa

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

What to actually watch for

What Dronabinol’s Own FDA Label Lists

This is not an interaction — none of it involves Yerba Mansa. These are the most notable effects listed in the ADVERSE REACTIONS section of Dronabinol’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. 8 of them are worth acting on rather than waiting out — marked below.

  • Memory problems Worth acting on
  • Unsteadiness Worth acting on
  • Hallucinations Worth acting on
  • Fainting Worth acting on
  • Confusion Worth acting on
  • Seizures Worth acting on
  • Hives Worth acting on
  • An allergic reaction Worth acting on
  • Vivid dreams or nightmares
  • Weight loss

Showing the 10 most notable of 31 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Dronabinol. Read the label on DailyMed › Where a percentage is shown, it is the share of 7,993 voluntary FDA FAERS reports for Dronabinol that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Yerba Mansa’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Yerba Mansa side to compare — that is a limit of the record, not a statement that Yerba Mansa has no side effects.

Everything else you take

See Every Supplement That Interacts With Dronabinol

This page covers Yerba Mansa only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Dronabinol page lists 151 supplements it has a documented interaction with, worst first, each one explained.

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

By severity: 3 major · 107 moderate · 41 minor.

From our pharmacist’s overview on the Dronabinol page

“A glass of grapefruit juice can push dronabinol (Marinol, Syndros), the prescription form of THC used for chemotherapy nausea and appetite loss, to higher blood levels than intended, amplifying dizziness, sedation, and its mind-altering effects. That is one of three major-rated interactions among the 151 supplements and herbs on file,…”

Reviewed by 2 · Jul 18, 2026

Open the Dronabinol interaction page

One more smart check

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

We hold 139 real supplement products containing Yerba Mansa, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Yerba Mansa. Even though Yerba Mansa itself has no known interaction with Dronabinol, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Yerba Mansa and Dronabinol 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 Yerba Mansa
Top half

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

29 days ago today
Medication Dronabinol
Steady interest

#2,159 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.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Yerba Mansa reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Yerba Mansa and Dronabinol 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 Yerba Mansa

What is Yerba Mansa?

Yerba Mansa
  • Sore throat and respiratory congestion
  • Skin irritation and wounds
  • Mouth and gum inflammation
  • Urinary and digestive complaints
  • Antimicrobial support

Yerba mansa is a traditional Southwestern and Mexican medicinal plant used for sore throats, skin problems, and infections. Modern scientific evidence in humans is very limited, so its effectiveness is largely unproven. If you want to try it, talk to a pharmacist or doctor first, and avoid it during pregnancy and breastfeeding.

Anemopsis californica · Saururaceae · Root (rhizome) and leaves · Dried root, tea, tincture, capsules, powder, topical washes and salves

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

Yerba Mansa: dosing

There is no established, standardized dose for yerba mansa. Traditional use varied widely depending on whether it was prepared as a tea, tincture, or topical wash, and the strength of commercial products differs from brand to brand.If you choose to use a product, follow the directions on the label and do not exceed the suggested amount.

From our Yerba Mansa monograph — the full record covers uses, side effects and every documented interaction.

Read the full Yerba Mansa monograph & all interactions
Medication

About Dronabinol

What Is Dronabinol Used For?

Brand names: Marinol, Syndros

Dronabinol — available as capsules (Marinol, Dronabinol) and as an oral solution (Syndros, Dronabinol oral solution) — is approved for two conditions in adults. First, it treats anorexia (severely reduced appetite) associated with weight loss in patients with AIDS. Second, it controls nausea and vomiting caused by cancer chemotherapy in patients who have not gotten enough relief from standard anti-nausea treatments.

Both uses apply to all available formulations, but dosing timing and meal instructions differ between the capsule and oral solution products. Always follow the specific instructions for the product you have been prescribed.

Most-Reported Side Effects for Dronabinol

From FAERS, the FDA’s public side-effect reporting system (7,993 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Nausea 894 reports
Fatigue 708 reports
Diarrhea 615 reports
Vomiting 591 reports
Decreased appetite 452 reports
See full Dronabinol drug information
Keep checking

Other Drugs & Yerba Mansa

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

0Major
248Moderate
0Minor
2,581No known interaction
248 Moderate 2,581 No interaction
Moderate

248 interactions

Showing 60 of 248 moderate interactions — see all 248 on the Yerba Mansa page.

No interaction 2,581 drugs checked — show the list

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

Showing the 60 most looked-up of 2,581 medications checked with no known interaction — see the full Yerba Mansa list.

See the full Yerba Mansa interactions page
See every supplement checked against Dronabinol, ranked by severity
Evidence & sources

Yerba Mansa References

The 1 references that drive our Yerba Mansa monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

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 Yerba Mansa and Dronabinol Together: Common Questions

Is it safe to take Yerba Mansa with Dronabinol?
We do not list a known interaction between Yerba Mansa and Dronabinol. 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.
How was the Yerba Mansa and Dronabinol combination checked?
Interactions in our licensed database are recorded against drug classes. Dronabinol is filed under 3 classifications, and Yerba Mansa has documented interactions with 1 drug class — none of Dronabinol's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Yerba Mansa interact with any other medications?
Yes. Yerba Mansa has 248 documented drug interactions in our database — Dronabinol is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Dronabinol interact with any supplements?
Yes. Dronabinol has documented interactions with 151 supplements in our database — Yerba Mansa is not one of them. The Dronabinol 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

Yerba Mansa monograph Uses, safety profile, and every drug interaction in one place Dronabinol drug information The full plain-English guide to this medication Dronabinol supplement interactions Every supplement checked against Dronabinol, 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 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Dronabinol and Yerba Mansa?

Our pharmacists answer your medication & supplement questions — free.

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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.