Medication interaction hub

What Supplements Interact with Vismodegib?

Vismodegib brand name: Erivedge. Every interaction below applies to the brands too.

57 Interactions 2 Major 38 Moderate 17 Minor
Curated & coded by · Clinical Pharmacist · Updated September 22, 2026

Drug–supplement interaction data sourced from Natural Medicines Pro, the licensed clinical database from TRC Healthcare / Therapeutic Research, with additional analysis by the HelloPharmacist Pharmacist Team. Our sources · Editorial policy

What is this page for?

One answer, for one medication: what supplements and herbal products interact with Vismodegib? Every vitamin, herb, and supplement ingredient we’ve checked against it is on this page, ranked by severity, each linking to the full report for that exact pair.

This page covers supplement interactions only — to check Vismodegib against your other medications, use the drug–drug interaction checker. Educational information from our licensed clinical databases, not medical advice. Our editorial policy

HelloPharmacist Bottom Line
Our Pharmacist Explains
What is this? The interaction data in the HelloPharmacist supplement database is licensed from Natural Medicines Pro by TRC Healthcare (Therapeutic Research). HelloPharmacist pharmacists often add our own analysis and context on top of that licensed data — such as this Bottom Line summary and the notes on individual interaction pages — and any such commentary is noted as ours.

St. John's wort can quietly undercut vismodegib (Erivedge), the pill for advanced basal cell carcinoma, by speeding up the gut pump that clears the drug from the body, and a cancer treatment that silently loses potency is the worst kind of interaction. Activated charcoal, the other major-rated entry among the 57 ingredients on file, can soak the drug up before it is absorbed. This list warrants genuine care, and those two majors deserve your attention before anything else on the page.

Most of the 38 moderate entries touch that same pump, often from the other side, blocking it and potentially raising vismodegib levels and side effects. Bulky fibers such as glucomannan can blunt absorption of anything taken by mouth, so keep them well separated from your dose and let your pharmacist set the timing. The 17 minor entries carry less weight, and a few cannabis-related items flip the pattern, since vismodegib itself may raise their levels.

— , Clinical Pharmacist · July 18, 2026

Major 2 Moderate 38 Minor 17 No known interaction 1,395

This box checks one ingredient at a time (like turmeric or magnesium). Taking a supplement product with a whole label of ingredients? Search the product instead — we check every ingredient on it ↓

Top Ingredient Interactions

Vismodegib: Top Interactions at a Glance

The most significant Vismodegib supplement & herbal interactions, colored by severity. Tap any ingredient to open the full report for that pair.

Showing the 12 highest-ranked of 57 interacting ingredients — plus 1,395 more checked with no known interaction. See the complete ranked list.

Start here

The Major Interactions to Know About

The most clinically significant Vismodegib + supplement combinations in our database, best-documented first. Open any card for the full report.

Major Likelihood Probable Activated Charcoal + Vismodegibi

Activated charcoal reduces systemic exposure to many drugs, including those that undergo enterohepatic recirculation, regardless of the route of administration.

Read the full interaction Major Likelihood Probable St. John's Wort + Vismodegibi

St.

Read the full interaction
The complete list

Every Supplement Checked Against Vismodegib

All 1,452 ingredients in our database, ranked by severity — 57 with a Vismodegib interaction on file and 1,395 with none found. Filter by severity or search any ingredient; hover the for what each ingredient is.

Looking for an interaction with a specific supplement product? Search products instead ↓

Straight answers

Can You Take It With Vismodegib?

One-line answers, one card per combination — scroll through today’s 20 and tap any card for the full report. A different set rotates in daily until every combination has had its turn.

Can you take Strawberry with Vismodegib?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. In vitro research suggests that strawberry extract can inhibit p-glycoprotein efflux.

Full Strawberry + Vismodegib answer

Can you take Sweet Orange with Vismodegib?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Sweet orange juice seems to modulate P-glycoprotein (P-gp), which might affect the blood levels of P-gp substrates.

Full Sweet Orange + Vismodegib answer

Can you take Tragacanth with Vismodegib?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, tragacanth might alter absorption of oral drugs.

Full Tragacanth + Vismodegib answer

Can you take White Pepper with Vismodegib?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, white pepper might increase levels of p-glycoprotein substrates.

Full White Pepper + Vismodegib answer

Can you take Thyroid Extract with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Food and medications can interfere with thyroid hormone absorption.

Full Thyroid Extract + Vismodegib answer

Can you take Agar with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Agar forms a thick gel, which may disrupt the absorption of nutrients and medications.

Full Agar + Vismodegib answer

Can you take Algin with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, algin can alter the absorption of oral drugs.

Full Algin + Vismodegib answer

Can you take Baikal Skullcap with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, Baikal skullcap might increase levels of drugs transported by P-glycoprotein.

Full Baikal Skullcap + Vismodegib answer

Can you take Black Psyllium with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.

Full Black Psyllium + Vismodegib answer

Can you take Blond Psyllium with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.

Full Blond Psyllium + Vismodegib answer

Can you take Carob with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, carob might also impair the absorption of oral drugs.

Full Carob + Vismodegib answer

Can you take Devil's Claw with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, devil's claw might increase levels of P-glycoprotein substrates.

Full Devil's Claw + Vismodegib answer

Can you take Grapefruit with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Grapefruit juice does not seem to affect renal P-glycoprotein (P-gp).

Full Grapefruit + Vismodegib answer

Can you take Karaya Gum with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Co-administration of oral drugs with bulk forming laxatives such as karaya gum may decrease, increase, or have no effect on the absorption o...

Full Karaya Gum + Vismodegib answer

Can you take Marshmallow with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, mucilage in marshmallow might impair absorption of oral drugs.

Full Marshmallow + Vismodegib answer

Can you take Puravive with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Puravive contains quercetin.

Full Puravive + Vismodegib answer

Can you take Sesame with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, sesame might alter the transport of P-glycoprotein substrates.

Full Sesame + Vismodegib answer

Can you take Turmeric with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, turmeric might increase the absorption of P-glycoprotein substrates.

Full Turmeric + Vismodegib answer

Can you take Uva Ursi with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, uva ursi may alter the levels of drugs transported by P-glycoprotein.

Full Uva Ursi + Vismodegib answer

Can you take Xanthan Gum with Vismodegib?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, xanthan gum can alter the absorption of oral drugs due to its fiber qualities.

Full Xanthan Gum + Vismodegib answer
Read the list like a pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • Possible. Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each entry links to a full report with the clinical detail, likelihood, evidence level, and citations for that exact combination.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

How Does Our Interaction Checker Work?

Behind every verdict on this page is a category system. Our source database doesn’t document supplement interactions drug-by-drug — it documents them against groups of medications that behave the same way (for example, “drugs processed by the CYP3A4 liver enzyme” or “blood-thinning medications”).

So the check works in three steps: (1) Vismodegib is classified into the pharmacology categories it belongs to, (2) every supplement interaction documented against any of those categories is inherited by Vismodegib, and (3) each ingredient keeps its own severity, likelihood, and evidence grades from the underlying record. That’s why one supplement can carry several records for one drug — it may interact through more than one category.

Vismodegib sits in 4 interaction categories. Open any one to see what the group means:

P-Glycoprotein Substrates 37 ingredients

A drug-transport group: these medications are moved in and out of cells by the P-glycoprotein pump. Supplements that affect the pump can change how much of the drug is absorbed or kept in the body.

37 of the supplement ingredients on this page reach Vismodegib through this category.

Oral Drugs 17 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

17 of the supplement ingredients on this page reach Vismodegib through this category.

Cytochrome P450 2C9 (Cyp2C9) Inhibitors 4 ingredients

A drug-metabolism group: these medications are processed by the named liver enzyme (a cytochrome P450). Supplements that speed this enzyme up or slow it down can lower or raise the medication's levels in your body.

4 of the supplement ingredients on this page reach Vismodegib through this category.

Cytochrome P450 2C19 (Cyp2C19) Inhibitors 2 ingredients

A drug-metabolism group: these medications are processed by the named liver enzyme (a cytochrome P450). Supplements that speed this enzyme up or slow it down can lower or raise the medication's levels in your body.

2 of the supplement ingredients on this page reach Vismodegib through this category.

About Vismodegib

Vismodegib is a targeted cancer medicine used to treat adults with advanced or metastatic basal cell carcinoma (a type of skin cancer) that cannot be removed by surgery or has come back after surgery.

Generic name: Vismodegib  ·  Brand name: Erivedge.

See the full Vismodegib drug information
Check a real product

Take a Supplement Product? Check the Whole Bottle Against Vismodegib

Most supplements are combination products — and the interaction may come from an ingredient you didn’t buy it for. Search any product below (or scan its label) and we’ll check every ingredient on it against Vismodegib.

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Products that contain Vismodegib-interacting ingredients

Real supplements from the NIH label database that contain the top interacting ingredients on this page — each one is worth a full label check before combining with Vismodegib.

Standardized St. John's Wort 600 mg by Nature's Truth contains St. John's Wort St. John's Wort-IMT by SP Standard Process contains St. John's Wort St John's Wort Extract by SuperSmart contains St. John's Wort St John's Wort 400 mg by Signature Supplements contains St. John's Wort
Pharmacist Counseling Corner

Vismodegib & Supplements: Common Questions

What supplements interact with Vismodegib?
Our database currently documents 57 ingredients with a known Vismodegib interaction (2 major, 38 moderate, 17 minor). The practical move: scan the major group first, then look up the exact supplements you take rather than reading all 57. The highest-ranked right now: Activated Charcoal, St. John's Wort, Coffee Charcoal.
Which Vismodegib supplement interactions are the most serious?
The 2 major-rated combinations — led by Activated Charcoal and St. John's Wort — deserve real caution: these are the ones generally best avoided, or used only with your prescriber watching. If you take any of them today, don't panic and don't stop anything abruptly — call your pharmacist first. Jump to the ranked list.
Can I take vitamins or supplements while on Vismodegib?
Plenty of supplements coexist fine with Vismodegib; a shorter list does not. Rather than memorizing it, check the specific ingredients on your labels — the ranked list above covers every one we've checked, and multi-ingredient products can be checked label-by-label with our scanner. Try the label scanner or the interaction checker.
Do brands like Erivedge have the same supplement interactions as Vismodegib?
Yes — Erivedge all contain Vismodegib, so everything on this page applies to them equally. Interactions belong to the active drug, never to the brand on the box; the same is true of generics.
Where do these interaction ratings come from?
Every rating comes from the Natural Medicines database — the same evidence-graded reference pharmacists and hospitals use — and each interaction carries three separate grades: severity (how bad it can be), likelihood (how well it's documented in studies and case reports), and an evidence level. Our pharmacists review the content; we never let an AI decide an interaction. See how to read the ratings and our editorial policy.
What about Vismodegib and my other medications?
This page covers Vismodegib against supplements and herbal ingredients. Checking Vismodegib against your other prescription or OTC medications is a different tool — our drug interaction checker covers that side. Head to the drug–drug interaction checker, or read the full Vismodegib drug information.

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

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Sourcing

Where This Data Comes From — and Why You Can Trust It

🧪 Licensed clinical database

Every interaction verdict on this page comes from Natural Medicines Pro (TRC Healthcare / Therapeutic Research) — the same evidence-graded reference used by pharmacists and hospitals. We license this data directly; we do not scrape it, and no AI invents an interaction.

🧑‍⚕️ Pharmacist review

This page is curated and coded by , Clinical Pharmacist, with additional analysis by the HelloPharmacist Pharmacist Team. Editorial commentary is ours; the licensed interaction records are shown as sourced.

🔄 Kept current

Our interaction database refreshes on a weekly cycle, and this page re-checks the live database every time it’s rebuilt — what you see reflects the database as of September 22, 2026.

🔍 Full transparency

How every dataset on this site is sourced, licensed, and updated is documented publicly: our data sources · editorial policy · how we use AI.

Educational information, not medical advice. An interaction being on file does not mean it will happen to you — and absence of one is not proof of safety. Never start or stop a medication or supplement without talking to your pharmacist or doctor.