Drug & supplement interaction

Schwarzbein Principle Diet + Ripretinib

Ripretinib brand name: Qinlock.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 27, 2026
The bottom line No known interaction

We found no known interaction between Schwarzbein Principle Diet and Ripretinib 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

Schwarzbein Principle Diet and Ripretinib

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 Ripretinib and Schwarzbein Principle Diet in our sources. This does not guarantee that the combination is completely free of risk — research on Schwarzbein Principle Diet alongside specific medications may be limited.

Worth understanding: our licensed dataset holds no drug-interaction record for Schwarzbein Principle Diet at all — not against Ripretinib, 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.

Schwarzbein Principle Diet is an eating pattern rather than something you take. Ask your pharmacist or doctor before changing how you eat while on a prescribed medicine: some medicines are dosed around meals, and a change in diet can change how they work. 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.

Schwarzbein Principle Diet safety at a glance

Schwarzbein Princi... overall Use caution It is a food-based diet, but major dietary shifts should be discussed with a healthcare provider.
Pregnancy Use caution Pregnant people should not start restrictive diets without medical and dietitian supervision.
Breastfeeding Use caution Nursing parents have higher nutrient and calorie needs, so any restrictive eating plan should be supervised.

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

Still wondering about combining Ripretinib and Schwarzbein Principle Diet? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Ripretinib’s Own FDA Label Lists

This is not an interaction — none of it involves Schwarzbein Principle Diet. These are the most notable effects listed in the ADVERSE REACTIONS section of Ripretinib’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 follow Schwarzbein Principle Diet and take the medicine. 5 of them are worth acting on rather than waiting out — marked below.

  • Heart failure Worth acting on
  • Kidney problems Worth acting on
  • Anemia Worth acting on
  • Raised blood pressure Worth acting on
  • Shortness of breath Worth acting on
  • Hair loss mentioned in 11.3% of FDA reports for Ripretinib
  • Dry skin
  • Sun sensitivity
  • Weight loss
  • Mouth irritation or sores

Showing the 10 most notable of 23 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 Ripretinib. Read the label on DailyMed › Where a percentage is shown, it is the share of 5,217 voluntary FDA FAERS reports for Ripretinib that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Schwarzbein Principle Diet’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Schwarzbein Principle Diet side to compare — that is a limit of the record, not a statement that Schwarzbein Principle Diet has no side effects.

Everything else you take

See Every Supplement That Interacts With Ripretinib

This page covers Schwarzbein Principle Diet only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ripretinib page lists 168 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Beer (major), Grapefruit (major), Siberian Cocklebur (major) and St. John's Wort (major).

By severity: 6 major · 124 moderate · 38 minor.

From our pharmacist’s overview on the Ripretinib page

“If you take ripretinib (Qinlock) for a GI stromal tumor, check this list carefully, since six of its 168 entries rate major. Ripretinib is cleared by the liver enzyme CYP3A4, and 121 of these ingredients can push its blood level up or drag it down through that pathway.”

Reviewed by 2 · Jul 18, 2026

Open the Ripretinib interaction page

How much people look this up

Where Schwarzbein Principle Diet and Ripretinib 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 Schwarzbein Principle Diet
Steady interest

#1,077 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Ripretinib
Steady interest

#1,606 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. Schwarzbein Principle Diet 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 Schwarzbein Principle Diet reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Schwarzbein Principle Diet and Ripretinib 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 .
Eating pattern

About Schwarzbein Principle Diet

What is Schwarzbein Principle Diet?

  • Weight management
  • Blood sugar control
  • Type 2 diabetes support
  • Anti-aging and hormone balance
  • General metabolic health

The Schwarzbein Principle Diet is a low-carbohydrate, whole-foods eating plan, not an herb or supplement. It emphasizes reducing refined carbs and sugar while eating protein, healthy fats, and non-starchy vegetables, but rigorous long-term scientific evidence for its specific claims is limited. Talk to your doctor or a registered dietitian before making major diet changes, especially if you have diabetes or take medication.

Dietary program (books, meal plans)

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

Schwarzbein Principle Diet: dosing

There is no "dose" for a diet. Instead, the program is followed by choosing certain foods and avoiding others over time. Specifics on portions and food choices come from Dr. Schwarzbein's books and materials.If you want to try it, follow the program's guidance and consider working with a registered dietitian to make sure your meals are balanced and meet your nutrient needs.

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

Read the full Schwarzbein Principle Diet monograph & all interactions
Medication

About Ripretinib

What Is Ripretinib Used For?

Brand name: Qinlock

Ripretinib, sold as Qinlock, treats advanced gastrointestinal stromal tumor (GIST) in adults. GIST is a type of tumor that starts in the digestive tract.

It is for people who have already been treated with 3 or more kinase inhibitors, including imatinib.

Most-Reported Side Effects for Ripretinib

From FAERS, the FDA’s public side-effect reporting system (5,217 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 687 reports
Alopecia 592 reports
Underdose 373 reports
Extra dose administered 357 reports
Nausea 338 reports
See full Ripretinib drug information
Keep checking

Other Drugs & Schwarzbein Principle Diet

Browse every other medication we’ve checked against Schwarzbein Principle Diet — 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 Schwarzbein Principle Diet 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 Schwarzbein Principle Diet list.

See the full Schwarzbein Principle Diet interactions page
See every supplement checked against Ripretinib, ranked by severity
Evidence & sources

Schwarzbein Principle Diet References

The 2 sources that drive our Schwarzbein Principle Diet monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Schwarzbein Principle Diet is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Carbohydrates — MedlinePlus Source
  2. Diabetes Diet, Eating, & Physical Activity — NIH NIDDK 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

Following Schwarzbein Principle Diet While Taking Ripretinib: Common Questions

Is it safe to follow Schwarzbein Principle Diet while taking Ripretinib?
We do not list a known interaction between Schwarzbein Principle Diet and Ripretinib. 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.
Does Ripretinib interact with any supplements?
Yes. Ripretinib has documented interactions with 168 supplements in our database — Schwarzbein Principle Diet is not one of them. The Ripretinib 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

Schwarzbein Principle Diet monograph Uses, safety profile, and every drug interaction in one place Ripretinib drug information The full plain-English guide to this medication Ripretinib supplement interactions Every supplement checked against Ripretinib, 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 Ripretinib and Schwarzbein Principle Diet?

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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.