Drug & supplement interaction

Frostwort + Pazopanib

Pazopanib brand name: Votrient.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Frostwort and Pazopanib 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 label for Pazopanib states a food rule worth keeping to.

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Interaction report

Frostwort and Pazopanib

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 Pazopanib and Frostwort 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 Frostwort at all — not against Pazopanib, 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.

Frostwort safety at a glance

Frostwort overall Not established There is very little modern safety data on frostwort in humans.
Pregnancy Avoid Safety is not established, so it is best avoided during pregnancy.
Breastfeeding Avoid No reliable safety information exists, so avoid while breastfeeding.

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

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

What Pazopanib’s Own FDA Label Lists

This is not an interaction — none of it involves Frostwort. These are the most notable effects listed in the ADVERSE REACTIONS section of Pazopanib’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 change in thyroid levels Worth acting on
  • A slow heartbeat Worth acting on
  • Pancreatitis Worth acting on
  • An irregular heartbeat Worth acting on
  • Chest pain Worth acting on
  • A low platelet count Worth acting on
  • Kidney problems Worth acting on
  • Raised blood pressure Worth acting on
  • Shortness of breath Worth acting on
  • A low white blood cell count Worth acting on

Showing the 10 most notable of 35 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 Pazopanib. Read the label on DailyMed › Frostwort’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Frostwort side to compare — that is a limit of the record, not a statement that Frostwort has no side effects.

How to take them

Some Pazopanib Products Have a Food Rule — Frostwort Should Not Break It

At least one FDA label for a product containing Pazopanib says to take it on an empty stomach. Most supplements — Frostwort included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Pazopanib on its own and move Frostwort to a meal later in the day.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Pazopanib products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

2 DOSAGE AND ADMINISTRATION Recommended Dosage : 800 mg orally once daily without food (at least 1 hour before or 2 hours after a meal).

From the Dosage and Administration section of the FDA label we read for Pazopanib — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Pazopanib

This page covers Frostwort only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Pazopanib page lists 349 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), Arsenic (major), Asarabacca (major) and Beer (major).

By severity: 14 major · 297 moderate · 38 minor.

From our pharmacist’s overview on the Pazopanib page

“Take a careful look before mixing supplements with pazopanib (Votrient), an oral pill for advanced kidney cancer and certain sarcomas. Fourteen of the 349 ingredients on file are rated major, grapefruit among them, since it can raise pazopanib levels enough to intensify side effects.”

Reviewed by 2 · Jul 18, 2026

Open the Pazopanib interaction page

How much people look this up

Where Frostwort and Pazopanib 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 Frostwort
Steady interest

#1,008 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Pazopanib
Steady interest

#2,092 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. Frostwort is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Frostwort reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Frostwort and Pazopanib records this page draws on were last updated June 22, 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 Frostwort

What is Frostwort?

  • Sore throat and mouth irritation
  • Diarrhea
  • Skin conditions and ulcers (topical)
  • Scrofula (historical/traditional use)
  • General astringent tonic

Frostwort is a North American wildflower used in traditional and folk herbal medicine, mainly as an astringent for sore throats, diarrhea, and skin problems. There is very little modern scientific research to confirm that it works or to define a safe dose, so it should be used cautiously and only after talking with a healthcare professional.

Helianthemum canadense · Cistaceae · Whole plant (leaves and aerial parts) · Dried herb, tea (infusion), tincture, sometimes topical preparations

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

Frostwort: dosing

There is no established or standardized dose for frostwort. Traditional use varied widely and was not based on measured, tested amounts.If you choose to use a frostwort product, follow the directions on the product label and do not exceed them.

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

Read the full Frostwort monograph & all interactions
Medication

About Pazopanib

What Is Pazopanib Used For?

Brand name: Votrient

Pazopanib tablets — sold as the brand Votrient and as generic pazopanib — are used to treat two types of advanced cancer in adults: advanced renal cell carcinoma (RCC), the most common form of kidney cancer, and advanced soft tissue sarcoma (STS) in patients who have already received prior chemotherapy.

Important limitation: Pazopanib has not been shown to work in adipocytic soft tissue sarcoma (a subtype involving fat cells) or in gastrointestinal stromal tumors (GISTs), so it is not used for those cancers.

Most-Reported Side Effects for Pazopanib

From FAERS, the FDA’s public side-effect reporting system (26,904 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Diarrhea 3,606 reports
Fatigue 2,490 reports
Nausea 2,419 reports
Malignant neoplasm progression 1,671 reports
Decreased appetite 1,438 reports
See full Pazopanib drug information
Keep checking

Other Drugs & Frostwort

Browse every other medication we’ve checked against Frostwort — 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
No interaction 2,829 drugs checked — show the list
Evidence & sources

Frostwort References

The 1 sources that drive our Frostwort monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Frostwort is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Using Dietary Supplements Wisely — NIH NCCIH Source

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 Frostwort and Pazopanib Together: Common Questions

Is it safe to take Frostwort with Pazopanib?
We do not list a known interaction between Frostwort and Pazopanib. 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.
Should I take Frostwort and Pazopanib at the same time of day?
At least one FDA label for a product containing Pazopanib says to take it on an empty stomach, and supplements are usually taken with a meal — so taking them together at breakfast is the easy mistake. Where that applies, keep Pazopanib on its own and move Frostwort to a meal later in the day. Food instructions belong to the product rather than the ingredient, so check the directions on your own box. This is about absorption, not an interaction.
Does Pazopanib interact with any supplements?
Yes. Pazopanib has documented interactions with 349 supplements in our database — Frostwort is not one of them. The Pazopanib interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Still Have a Question About Pazopanib and Frostwort?

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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.