Medication interaction hub

What Supplements Interact with Naloxegol?

Naloxegol brand name: Movantik. Every interaction below applies to the brands too.

138 Interactions 3 Major 94 Moderate 41 Minor
Curated & coded by · Clinical Pharmacist · Updated October 6, 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 Naloxegol? 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 Naloxegol 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.

Naloxegol (Movantik) relieves the constipation that opioids cause, and this is a list that deserves real care before you add anything from it. Nearly all of the trouble traces to a single enzyme, CYP3A4, which the body relies on to clear naloxegol. Supplements that block that enzyme let the drug build up, which can bring on belly cramping and withdrawal-like symptoms, while ones that rev it up can quietly erase the constipation relief you took it for. Grapefruit juice does the first and St. John's wort the second, and both carry a major rating.

A smaller cluster acts in the gut itself, where binding or bulking agents such as activated charcoal (the third major) can keep an oral dose from being absorbed at all, so space those well apart from the pill. Start with those three majors. The remaining entries, 94 moderate and 41 minor out of 138 in all, mostly nudge naloxegol's level in one direction or the other with less force.

— , Clinical Pharmacist · July 18, 2026

Major 3 Moderate 94 Minor 41 No known interaction 1,314

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

Naloxegol: Top Interactions at a Glance

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

Showing the 12 highest-ranked of 138 interacting ingredients — plus 1,314 more checked with no known interaction. See the complete ranked list.

Start here

The Major Interactions to Know About

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

Major Likelihood Likely Grapefruit + Naloxegoli

Grapefruit juice can increase levels of drugs metabolized by CYP3A4.

Read the full interaction Major Likelihood Probable Activated Charcoal + Naloxegoli

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 + Naloxegoli

St.

Read the full interaction
The complete list

Every Supplement Checked Against Naloxegol

All 1,452 ingredients in our database, ranked by severity — 138 with a Naloxegol interaction on file and 1,314 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 Naloxegol?

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 Hops with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, hops extract might alter metabolism of CYP3A4 substrates; however, this effect may not be clinically significant.

Full Hops + Naloxegol answer

Can you take Chanca Piedra with Naloxegol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, use of chanca piedra might increase the levels and clinical effects of CYP3A4 substrates.

Full Chanca Piedra + Naloxegol answer

Can you take Fucus Vesiculosus with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, concomitant use of Fucus vesiculosus with CYP3A4 substrates might increase the risk for adverse effects.

Full Fucus Vesiculosus + Naloxegol answer

Can you take Hemp with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.

Full Hemp + Naloxegol answer

Can you take Hibiscus Sabdariffa with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, Hibiscus sabdariffa extract might reduce the metabolism of CYP3A4 substrates.

Full Hibiscus Sabdariffa + Naloxegol answer

Can you take Honey with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, honey might decrease levels of drugs metabolized by CYP3A4, but research is conflicting.

Full Honey + Naloxegol answer

Can you take Karaya Gum with Naloxegol?

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 + Naloxegol answer

Can you take Marshmallow with Naloxegol?

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 + Naloxegol answer

Can you take Melatonin with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, melatonin might increase levels of drugs metabolized by CYP3A4.

Full Melatonin + Naloxegol answer

Can you take Passion Flower with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, passion flower might decrease the effects of CYP3A4 substrates.

Full Passion Flower + Naloxegol answer

Can you take Puravive with Naloxegol?

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

Full Puravive + Naloxegol answer

Can you take Rhodiola with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, rhodiola might increase levels of drugs metabolized by CYP3A4.

Full Rhodiola + Naloxegol answer

Can you take Valerian with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.

Full Valerian + Naloxegol answer

Can you take Vitamin D with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Vitamin D might induce CYP3A4 enzymes and reduce the bioavailability of CYP3A4 substrates.

Full Vitamin D + Naloxegol answer

Can you take Xanthan Gum with Naloxegol?

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 + Naloxegol answer

Can you take Yerba Mate with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, yerba mate might increase the levels and clinical effects of CYP3A4 substrates.

Full Yerba Mate + Naloxegol answer

Can you take Yohimbe with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, yohimbe might decrease the levels and clinical effects of CYP3A4 substrates.

Full Yohimbe + Naloxegol answer

Can you take Delta-9-tetrahydrocannabinol (thc) with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, THC may increase the levels and clinical effects of CYP3A4 substrates.

Full Delta-9-tetrahydrocannabinol (thc) + Naloxegol answer

Can you take Eleuthero with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, eleuthero might increase levels of drugs metabolized by CYP3A4.

Full Eleuthero + Naloxegol answer

Can you take Green Tea with Naloxegol?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Green tea is unlikely to produce clinically significant changes in the levels and clinical effects of CYP3A4 substrates.

Full Green Tea + Naloxegol 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) Naloxegol is classified into the pharmacology categories it belongs to, (2) every supplement interaction documented against any of those categories is inherited by Naloxegol, 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.

Naloxegol sits in 2 interaction categories. Open any one to see what the group means:

Cytochrome P450 3A4 (Cyp3A4) Substrates 121 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.

121 of the supplement ingredients on this page reach Naloxegol 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 Naloxegol through this category.

About Naloxegol

Naloxegol is a peripherally acting opioid antagonist used to treat opioid-induced constipation in adults with chronic non-cancer pain.

Generic name: Naloxegol  ·  Brand name: Movantik.

See the full Naloxegol drug information
Check a real product

Take a Supplement Product? Check the Whole Bottle Against Naloxegol

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 Naloxegol.

Search a supplement product

Type a product name, brand, or UPC — smart search across our full catalog.

Grounded search over our product catalog — every verdict comes from our interaction database, never AI guesswork. How we use AI

Or scan the bottle

Photograph any Supplement Facts panel — we read the ingredients and check each one against your medications. Free, in seconds.

Open the label scanner

Prefer typing? The interaction checker looks up products by name too.

Pharmacist Counseling Corner

Naloxegol & Supplements: Common Questions

What supplements interact with Naloxegol?
In our interaction database, 138 supplement and herbal ingredients have an interaction with Naloxegol on file — 3 rated major, 94 moderate, and 41 minor. That number sounds scarier than it is: severity matters far more than the count, which is why the list on this page is ranked instead of alphabetical. Start at the top. The highest-ranked right now: Grapefruit, Activated Charcoal, St. John's Wort.
Which Naloxegol supplement interactions are the most serious?
The 3 major-rated combinations — led by Grapefruit, 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 Naloxegol?
That depends entirely on which supplement. The honest answer for Naloxegol is in the ranked list above — and if what you take is a combination product with a dozen ingredients, don't check them one by one: photograph the label with our scanner and we'll check the whole thing at once. Try the label scanner or the interaction checker.
Do brands like Movantik have the same supplement interactions as Naloxegol?
Yes — Movantik all contain Naloxegol, 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 Naloxegol and my other medications?
This page covers Naloxegol against supplements and herbal ingredients. Checking Naloxegol 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 Naloxegol drug information.

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

Where next

More Free Pharmacist Tools

Supplement interaction checker Check any supplement or product against your medications Supplement label scanner Photograph a Supplement Facts panel; we check every ingredient Browse medications A–Z Every drug we’ve checked against herbs & supplements Ingredient directory Every vitamin, herb & mineral we track, with interaction data Product directory Look up any bottle by name, brand, or barcode Ask a pharmacist Free, personal answer from our licensed team
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 October 6, 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.