Drug & supplement interaction

Apple Polyphenols + Cobimetinib Fumarate

Cobimetinib Fumarate brand name: Cotellic.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Apple Polyphenols and Cobimetinib Fumarate 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.

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

Apple Polyphenols and Cobimetinib Fumarate

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 Cobimetinib Fumarate and Apple Polyphenols 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.

Apple Polyphenols safety at a glance

Apple Polyphenols overall Use caution Likely safe in food amounts; concentrated supplements are less studied for long-term use.
Pregnancy Use caution Apples as food are fine, but concentrated extracts have not been studied in pregnancy, so avoid supplements unless your doctor approves.
Breastfeeding Use caution There is not enough information on concentrated extracts during breastfeeding, so caution is advised.

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

Still wondering about combining Cobimetinib Fumarate and Apple Polyphenols? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Cobimetinib Fumarate

Interactions in our licensed database are recorded against drug classes, not just single drug names. Cobimetinib Fumarate is filed under 2 classifications — cytochrome p450 3a4 (cyp3a4) substrates, oral drugs. Apple Polyphenols has documented interactions with 1 drug class — the most serious being insulin (moderate) — and none of Cobimetinib Fumarate’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

Apple Polyphenols Does Interact With Other Medications

Apple Polyphenols has 13 moderate known drug interactions in our database — Cobimetinib Fumarate isn’t one of them. If you take anything else, check it against the full list below.

Moderate 13 No known interaction 2,817 (incl. Cobimetinib Fumarate)
Taking anything else?

Check Another of Your Medications Against Apple Polyphenols

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

What to actually watch for

No Interaction Found — But Data Suggests Apple Polyphenols and Cobimetinib Fumarate 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.

  • Diarrhea Additional detail

    Apple Polyphenols

    “Orally, taking 600 mg apple polyphenols was reported to cause diarrhea and loose stools in one clinical study.”

    Apple Polyphenols · Natural Medicines adverse-effect record, reported in diarrhea.

    1 source cited
    1. 94863. Nagasako-Akazome Y, Kanda T, Ohtake Y, Shimasaki H, Kobayashi T. Apple polyphenols influence cholesterol metabolism in healthy subjects with relatively high body mass index. J Oleo Sci. 2007;56(8):417-28. PubMed

    Cobimetinib Fumarate

    Listed in the ADVERSE REACTIONS section of the FDA label for Cobimetinib Fumarate. Read the label on DailyMed ›

Reported for Apple Polyphenols but not commonly for Cobimetinib Fumarate: headache.

Effects for Cobimetinib Fumarate come from the ADVERSE REACTIONS section of its FDA label; effects for Apple Polyphenols come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

From our Q&A

Questions About Apple Polyphenols or Cobimetinib Fumarate

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Apple Polyphenols or Cobimetinib Fumarate, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Cobimetinib Fumarate

This page covers Apple Polyphenols only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Cobimetinib Fumarate 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 Cobimetinib Fumarate page

“If you are on cobimetinib (Cotellic) for melanoma, be strict about supplements, because this list carries real weight. The drug is cleared by the liver enzyme CYP3A4, and nearly all 138 flagged ingredients can push its blood level up or down through that pathway.”

Reviewed by 2 · Jul 18, 2026

Open the Cobimetinib Fumarate interaction page

How much people look this up

Where Apple Polyphenols and Cobimetinib Fumarate 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 Apple Polyphenols
Steady interest

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

29 days ago today
Medication Cobimetinib Fumarate
Steady interest

#1,970 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 Apple Polyphenols reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Apple Polyphenols and Cobimetinib Fumarate records this page draws on were last updated July 10, 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 Apple Polyphenols

What is Apple Polyphenols?

Apple Polyphenols
  • High cholesterol
  • High blood pressure
  • Weight management
  • Antioxidant support
  • Blood sugar support
  • Skin health (topical)

Apple polyphenols are antioxidant plant compounds taken from apples and marketed for heart, weight, and blood sugar health. Early research is interesting, but there is not enough reliable human evidence to confirm these benefits. They appear generally safe in food-like amounts, but talk with your pharmacist or doctor before using concentrated supplements.

Malus domestica · Rosaceae · Fruit, peel, and pomace (sometimes unripe apples) · Capsules, tablets, powders, and standardized extracts

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

Apple Polyphenols: dosing

There is no standardized, well-established dose for apple polyphenols. Products vary widely in how much polyphenol they contain.The best approach is to follow the directions on the product label and not exceed the suggested amount.

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

Read the full Apple Polyphenols monograph & all interactions
Medication

About Cobimetinib

What Is Cobimetinib Used For?

Brand name: Cotellic

Cobimetinib is approved for two uses in adults. First, it is used in combination with another drug called vemurafenib to treat melanoma (a type of skin cancer) that cannot be surgically removed or has spread to other parts of the body — but only when the tumor carries a specific genetic change called a BRAF V600E or V600K mutation. A lab test must confirm this mutation before treatment begins.

Second, cobimetinib can be used on its own (as a single agent) to treat adults with histiocytic neoplasms — a rare group of cancers involving immune cells called histiocytes.

See full Cobimetinib drug information
Keep checking

Other Drugs & Apple Polyphenols

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

0Major
13Moderate
0Minor
2,816No known interaction
13 Moderate 2,816 No interaction
Moderate

13 interactions

No interaction 2,816 drugs checked — show the list

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

Showing the 60 most looked-up of 2,816 medications checked with no known interaction — see the full Apple Polyphenols list.

See the full Apple Polyphenols interactions page
See every supplement checked against Cobimetinib Fumarate, ranked by severity
Evidence & sources

Apple Polyphenols References

The 10 references that drive our Apple Polyphenols 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. Akazome Y, Kametani N, Kanda T, et al. Evaluation of safety of excessive intake and efficacy of long-term intake of beverages containing apple polyphenols. J Oleo Sci. 2010;59(6):321-38. PubMed
  2. Auclair S, Chironi G, Milenkovic D, et al. The regular consumption of a polyphenol-rich apple does not influence endothelial function: a randomised double-blind trial in hypercholesterolemic adults. Eur J Clin Nutr. 2010;64(10):1158-65. PubMed
  3. Deley G, Guillemet D, Allaert FA, Babault N. An Acute Dose of Specific Grape and Apple Polyphenols Improves Endurance Performance: A Randomized, Crossover, Double-Blind versus Placebo Controlled Study. Nutrients. 2017;9(8). pii: E917. PubMed
  4. Kamimura A, Takahashi T, Watanabe Y. Investigation of topical application of procyanidin B-2 from apple to identify its potential use as a hair growing agent. Phytomedicine. 2000;7(6):529-36. PubMed
  5. Kishi K, Saito M, Saito T, et al. Clinical efficacy of apple polyphenol for treating cedar pollinosis. Biosci Biotechnol Biochem. 2005;69(4):829-32. PubMed
  6. Nagasako-Akazome Y, Kanda T, Ohtake Y, Shimasaki H, Kobayashi T. Apple polyphenols influence cholesterol metabolism in healthy subjects with relatively high body mass index. J Oleo Sci. 2007;56(8):417-28. PubMed
  7. Takahashi T, Kamimura A, Kagoura M, et al. Investigation of the topical application of procyanidin oligomers from apples to identify their potential use as a hair-growing agent. J Cosmet Dermatol. 2005;4(4):245-9. PubMed
  8. Tenore GC, Caruso D, Buonomo G, et al. A Healthy Balance of Plasma Cholesterol by a Novel Annurca Apple-Based Nutraceutical Formulation: Results of a Randomized Trial. J Med Food. 2017;20(3):288-300. PubMed
  9. Saarenhovi M, Salo P, Scheinin M, et al. The effect of an apple polyphenol extract rich in epicatechin and flavan-3-ol oligomers on brachial artery flow-mediated vasodilatory function in volunteers with elevated blood pressure. Nutr. J 2017;16(1):73. PubMed
  10. Prpa EJ, Corpe CP, Atkinson B, et al. Apple polyphenol-rich drinks dose-dependently decrease early-phase postprandial glucose concentrations following a high-carbohydrate meal: a randomized controlled trial in healthy adults and in vitro studies. J Nutr B PubMed

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 Apple Polyphenols and Cobimetinib Fumarate Together: Common Questions

Is it safe to take Apple Polyphenols with Cobimetinib Fumarate?
We do not list a known interaction between Apple Polyphenols and Cobimetinib Fumarate. 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 Apple Polyphenols and Cobimetinib Fumarate 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.
How was the Apple Polyphenols and Cobimetinib Fumarate combination checked?
Interactions in our licensed database are recorded against drug classes. Cobimetinib Fumarate is filed under 2 classifications, and Apple Polyphenols has documented interactions with 1 drug class — none of Cobimetinib Fumarate'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 Apple Polyphenols interact with any other medications?
Yes. Apple Polyphenols has 13 documented drug interactions in our database — Cobimetinib Fumarate 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 Cobimetinib Fumarate interact with any supplements?
Yes. Cobimetinib Fumarate has documented interactions with 138 supplements in our database — Apple Polyphenols is not one of them. The Cobimetinib Fumarate 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

Apple Polyphenols monograph Uses, safety profile, and every drug interaction in one place Cobimetinib drug information The full plain-English guide to this medication Cobimetinib Fumarate supplement interactions Every supplement checked against Cobimetinib Fumarate, 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 10 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Cobimetinib Fumarate and Apple Polyphenols?

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.