Drug & supplement interaction

Pipsissewa + Abemaciclib

Abemaciclib brand name: Verzenio.

No Known Interaction
Medically reviewed by · Updated October 2026 · Pair last verified Oct 4, 2026
The bottom line No known interaction

We found no known interaction between Pipsissewa and Abemaciclib 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. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Pipsissewa and Abemaciclib

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 Abemaciclib and Pipsissewa 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.

Worth understanding: our licensed dataset holds no drug-interaction record for Pipsissewa at all — not against Abemaciclib, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

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.

Pipsissewa safety at a glance

Pipsissewa overall Use caution Long traditional use exists, but modern safety and effectiveness data are limited.
Pregnancy Avoid Not enough safety data; avoid during pregnancy.
Breastfeeding Avoid No reliable safety information, so avoid while breastfeeding.

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

Still wondering about combining Abemaciclib and Pipsissewa? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Pipsissewa and Abemaciclib May Share a Side Effect

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • Vomiting reported in 5.6% of FDA reports for Abemaciclib Additional detail

    Pipsissewa

    “Orally, chronic use may lead to hydroquinone toxicity. Symptoms of hydroquinone toxicity include tinnitus, vomiting, delirium, convulsions, and collapse (11).”

    Pipsissewa · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    1 source cited
    1. 11. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.

    “Orally, chronic use may lead to hydroquinone toxicity. Symptoms of toxicity include vomiting (11).”

    Pipsissewa · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    1 source cited
    1. 11. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.

    Abemaciclib

    Listed in the ADVERSE REACTIONS section of the FDA label for Abemaciclib, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

Reported for Pipsissewa but not commonly for Abemaciclib: seizures, confusion and ringing in the ears.

Effects for Abemaciclib come from the ADVERSE REACTIONS section of its FDA label; effects for Pipsissewa come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 19,870 voluntary FDA FAERS reports for Abemaciclib that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Overlapping uses

What Abemaciclib Is Prescribed For, and What Pipsissewa Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Abemaciclib is a prescription medicine with approved uses on its FDA label. Pipsissewa is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Abemaciclib is prescribed for: Verzenio (abemaciclib) is used to treat adults with hormone receptor (HR)-positive, HER2-negative breast cancer. For early breast cancer at high risk of returning, Verzenio is taken alongside endocrine therapy (tamoxifen or an aromatase inhibitor) after surgery to help prevent recurrence. For advanced or metastatic breast cancer, Verzenio can be used in three ways: combined with an aromatase inhibitor as a first hormonal treatment; combined with fulvestrant after the cancer has progressed on prior hormone therapy; or on its own after both hormone therapy and prior chemotherapy have stopped working.

Pipsissewa has been studied for:

  • Cancer studied, not established Pipsissewa has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Pipsissewa for cancer

    Although there has been interest in using oral pipsissewa for cancer, there is insufficient reliable information about the clinical effects of pipsissewa for this purpose.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Abemaciclib on your own; if you are taking Pipsissewa for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

Everything else you take

See Every Supplement That Interacts With Abemaciclib

This page covers Pipsissewa only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Abemaciclib page lists 138 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 · 94 moderate · 41 minor.

From our pharmacist’s overview on the Abemaciclib page

“A daily pill for a common form of advanced breast cancer, abemaciclib (Verzenio) only helps when its blood level stays steady, so this list of 138 supplements deserves genuine care. Nearly all of them act on CYP3A4, the liver enzyme that clears abemaciclib, meaning a supplement can push its level up and intensify side effects, or drag…”

Reviewed by 2 · Jul 18, 2026

Open the Abemaciclib interaction page

One more smart check

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

We hold 113 real supplement products containing Pipsissewa, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Pipsissewa. Even though Pipsissewa itself has no known interaction with Abemaciclib, 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 Pipsissewa and Abemaciclib 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 Pipsissewa
Steady interest

#1,199 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Abemaciclib
Top 10

#10 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 Pipsissewa reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Pipsissewa and Abemaciclib records this page draws on were last updated October 6, 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 Pipsissewa

What is Pipsissewa?

Pipsissewa
  • Urinary tract support
  • Diuretic (increasing urine flow)
  • Mild inflammation
  • Fluid retention
  • Traditional remedy for kidney and bladder complaints

Pipsissewa is a North American forest herb with a long history of traditional use as a diuretic and urinary remedy, but modern human research is very limited. There is not enough good evidence to confirm it works for any health condition, and its safety has not been well studied, so use caution and talk with your pharmacist or doctor first.

Chimaphila umbellata · Ericaceae · Leaves and above-ground parts; sometimes the root · Tea (infusion), tincture, liquid extract, capsules, dried herb

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

Pipsissewa: dosing

There is no established standardized dose for pipsissewa. Traditional use varies widely depending on whether it is taken as a tea, tincture, or extract.If you choose to use a product, follow the directions on the label and do not exceed the recommended amount.

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

Read the full Pipsissewa monograph & all interactions
Medication

About Abemaciclib

What Is Abemaciclib Used For?

Brand name: Verzenio

Verzenio (abemaciclib) is used to treat adults with hormone receptor (HR)-positive, HER2-negative breast cancer. For early breast cancer at high risk of returning, Verzenio is taken alongside endocrine therapy (tamoxifen or an aromatase inhibitor) after surgery to help prevent recurrence.

For advanced or metastatic breast cancer, Verzenio can be used in three ways: combined with an aromatase inhibitor as a first hormonal treatment; combined with fulvestrant after the cancer has progressed on prior hormone therapy; or on its own after both hormone therapy and prior chemotherapy have stopped working.

Most-Reported Side Effects for Abemaciclib

From FAERS, the FDA’s public side-effect reporting system (19,870 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Diarrhea 6,094 reports
Fatigue 2,551 reports
Nausea 2,124 reports
Vomiting 1,119 reports
Malignant neoplasm progression 1,095 reports
See full Abemaciclib drug information
Keep checking

Other Drugs & Pipsissewa

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

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

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

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Pipsissewa list.

See the full Pipsissewa interactions page
See every supplement checked against Abemaciclib, ranked by severity
Evidence & sources

Pipsissewa References

The 2 references that drive our Pipsissewa 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. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  2. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 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 Pipsissewa and Abemaciclib Together: Common Questions

Is it safe to take Pipsissewa with Abemaciclib?
We do not list a known interaction between Pipsissewa and Abemaciclib. 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.
Do Pipsissewa and Abemaciclib have any of the same side effects?
Yes — our sources link each of them separately to one of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Are Pipsissewa and Abemaciclib used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Pipsissewa in each. That is a conversation for your prescriber, especially if Abemaciclib is being adjusted to a target.
Does Abemaciclib interact with any supplements?
Yes. Abemaciclib has documented interactions with 138 supplements in our database — Pipsissewa is not one of them. The Abemaciclib 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

Pipsissewa monograph Uses, safety profile, and every drug interaction in one place Abemaciclib drug information The full plain-English guide to this medication Abemaciclib supplement interactions Every supplement checked against Abemaciclib, 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 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Abemaciclib and Pipsissewa?

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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.