Drug & supplement interaction

Yerba Mansa + Gemcitabine

Gemcitabine brand name: Gemzar.

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 Gemcitabine 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.

Know someone taking this? Share
Facebook Post Reddit Email
On this page
Interaction report

Yerba Mansa and Gemcitabine

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 Gemcitabine 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 Gemcitabine and Yerba Mansa? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Gemcitabine

Interactions in our licensed database are recorded against drug classes, not just single drug names. Gemcitabine is filed under 2 classifications — antineoplastics, hepatotoxic drugs. Yerba Mansa has documented interactions with 1 drug class — the most serious being cns depressants (moderate) — and none of Gemcitabine’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 — Gemcitabine 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. Gemcitabine)
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 Gemcitabine’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 Gemcitabine’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. 10 of them are worth acting on rather than waiting out — marked below.

  • A stroke or mini-stroke Worth acting on
  • A heart attack Worth acting on
  • A low platelet count Worth acting on mentioned in 7.0% of FDA reports for Gemcitabine
  • An irregular heartbeat Worth acting on
  • Anemia Worth acting on mentioned in 5.8% of FDA reports for Gemcitabine
  • A low white blood cell count Worth acting on mentioned in 6.2% of FDA reports for Gemcitabine
  • Kidney problems Worth acting on
  • Raised blood pressure Worth acting on
  • Shortness of breath Worth acting on
  • Liver problems Worth acting on

Showing the 10 most notable of 16 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 Gemcitabine. Read the label on DailyMed › Where a percentage is shown, it is the share of 53,020 voluntary FDA FAERS reports for Gemcitabine 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 Gemcitabine

This page covers Yerba Mansa only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Gemcitabine page lists 39 supplements it has a documented interaction with, worst first, each one explained.

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

By severity: 3 major · 35 moderate · 1 minor.

Open the Gemcitabine 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 Gemcitabine, 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 Gemcitabine 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

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

29 days ago today
Medication Gemcitabine
Steady interest

#2,588 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 Gemcitabine 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 Gemcitabine Injection

What Is Gemcitabine Injection Used For?

Brand name: Gemzar

Gemcitabine Injection (available as Avgemsi, Gemcitabine, and Infugem) is used to treat several types of cancer. It is given in combination with carboplatin for advanced ovarian cancer that has returned at least 6 months after platinum-based treatment, and in combination with paclitaxel as a first-line treatment for metastatic breast cancer after prior chemotherapy with an anthracycline (a specific class of chemo drug).

It is also given in combination with cisplatin for non-small cell lung cancer (NSCLC) that cannot be removed surgically or has spread. For pancreatic cancer that is locally advanced or has spread, it is used as a single agent — including in patients who have already been treated with fluorouracil.

Most-Reported Side Effects for Gemcitabine

From FAERS, the FDA’s public side-effect reporting system (53,020 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Disease progression 4,850 reports
Thrombocytopenia 3,706 reports
Neutropenia 3,295 reports
Anemia 3,084 reports
Malignant neoplasm progression 2,912 reports
See full Gemcitabine Injection 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 Gemcitabine, 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 Gemcitabine Together: Common Questions

Is it safe to take Yerba Mansa with Gemcitabine?
We do not list a known interaction between Yerba Mansa and Gemcitabine. 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 Gemcitabine combination checked?
Interactions in our licensed database are recorded against drug classes. Gemcitabine is filed under 2 classifications, and Yerba Mansa has documented interactions with 1 drug class — none of Gemcitabine'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 — Gemcitabine 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 Gemcitabine interact with any supplements?
Yes. Gemcitabine has documented interactions with 39 supplements in our database — Yerba Mansa is not one of them. The Gemcitabine 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 Gemcitabine Injection drug information The full plain-English guide to this medication Gemcitabine supplement interactions Every supplement checked against Gemcitabine, 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 Gemcitabine and Yerba Mansa?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.