Medication interaction hub

What Supplements Interact with Cobicistat?

Cobicistat brand name: Tybost. Every interaction below applies to the brands too.

30 Interactions 1 Major 19 Moderate 10 Minor
Curated & coded by · Clinical Pharmacist · Updated September 15, 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 Cobicistat? 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 Cobicistat 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.

Activated charcoal is the one entry to understand first if you take cobicistat (Tybost). Charcoal soaks up drugs in the gut, and since cobicistat's entire job is boosting an HIV medicine to protective levels, blunting its absorption can put the whole regimen at risk. That lone major-rated interaction sets the tone for a list that deserves genuine care. Seventeen of the 30 ingredients on file affect absorption, mostly fibers, gums, and mucilages, so space those well apart from your dose.

The other 13 run the opposite direction. Cobicistat blocks the CYP3A4 enzyme by design, a pathway many herbs rely on for clearance, so it can raise their levels, red yeast rice's built-in statin being the clearest example. Nineteen entries rate moderate and ten minor, and much of the evidence is theoretical, but when one tablet holds an HIV regimen together, small shifts count.

— , Clinical Pharmacist · July 18, 2026

Major 1 Moderate 19 Minor 10 No known interaction 1,422

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

Cobicistat: Top Interactions at a Glance

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

Showing the 12 highest-ranked of 30 interacting ingredients — plus 1,422 more checked with no known interaction. See the complete ranked list.

Start here

The Major Interactions to Know About

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

Major Likelihood Probable Activated Charcoal + Cobicistati

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

Read the full interaction
The complete list

Every Supplement Checked Against Cobicistat

All 1,452 ingredients in our database, ranked by severity — 30 with a Cobicistat interaction on file and 1,422 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 Cobicistat?

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 Evodia with Cobicistat?

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

Full Evodia + Cobicistat answer

Can you take Fever Bark with Cobicistat?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, CYP3A4 inhibitors might increase the levels and clinical effects of yohimbine, a constituent of fever bark.

Full Fever Bark + Cobicistat answer

Can you take Guar Gum with Cobicistat?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Guar gum might reduce the absorption of some oral drugs, potentially decreasing their effectiveness.

Full Guar Gum + Cobicistat answer

Can you take Gum Arabic with Cobicistat?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, gum arabic can alter the absorption of oral drugs due to its fiber content.

Full Gum Arabic + Cobicistat answer

Can you take Kratom with Cobicistat?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. CYP3A4 inhibitors might increase the concentrations and clinical effects of kratom's primary active alkaloid mitragynine.

Full Kratom + Cobicistat answer

Can you take Red Yeast Rice with Cobicistat?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, drugs that inhibit the CYP3A4 enzymes might increase levels of lovastatin from red yeast rice.

Full Red Yeast Rice + Cobicistat answer

Can you take Slippery Elm with Cobicistat?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.

Full Slippery Elm + Cobicistat answer

Can you take Thunder God Vine with Cobicistat?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, CYP3A4 inhibitors might increase the levels and adverse effects of thunder god vine constituents.

Full Thunder God Vine + Cobicistat answer

Can you take Tragacanth with Cobicistat?

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 + Cobicistat answer

Can you take Yohimbe with Cobicistat?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, CYP3A4 inhibitors might increase the levels and adverse effects of yohimbine, a constituent of yohimbe bark.

Full Yohimbe + Cobicistat answer

Can you take Thyroid Extract with Cobicistat?

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 + Cobicistat answer

Can you take Agar with Cobicistat?

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 + Cobicistat answer

Can you take Algin with Cobicistat?

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 + Cobicistat answer

Can you take Black Psyllium with Cobicistat?

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 + Cobicistat answer

Can you take Blond Psyllium with Cobicistat?

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 + Cobicistat answer

Can you take Carob with Cobicistat?

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 + Cobicistat answer

Can you take Karaya Gum with Cobicistat?

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 + Cobicistat answer

Can you take Marshmallow with Cobicistat?

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 + Cobicistat answer

Can you take Xanthan Gum with Cobicistat?

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 + Cobicistat answer

Can you take Ostarine with Cobicistat?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, concomitant use of ostarine with CYP3A4 inhibitors could increase the effects and adverse effects of ostarine, although this...

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

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

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 Cobicistat through this category.

Cytochrome P450 3A4 (Cyp3A4) Inhibitors 13 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.

13 of the supplement ingredients on this page reach Cobicistat through this category.

About Cobicistat

Cobicistat is a pharmacokinetic booster used alongside HIV-1 antiretroviral medicines to help them reach effective levels in the blood.

Generic name: Cobicistat  ·  Brand name: Tybost.

See the full Cobicistat drug information
Check a real product

Take a Supplement Product? Check the Whole Bottle Against Cobicistat

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 Cobicistat.

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

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

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

Products that contain Cobicistat-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 Cobicistat.

Absolute Focus by Bright Brain contains Adrafinil Intellect by 8WeeksOut contains Adrafinil Morphobrain by Morphogen Nutrition contains Adrafinil Adrafinil 300 mg by Absorb Health contains Adrafinil
Pharmacist Counseling Corner

Cobicistat & Supplements: Common Questions

What supplements interact with Cobicistat?
Our database currently documents 30 ingredients with a known Cobicistat interaction (1 major, 19 moderate, 10 minor). The practical move: scan the major group first, then look up the exact supplements you take rather than reading all 30. The highest-ranked right now: Activated Charcoal, Coffee Charcoal, European Mandrake.
Which Cobicistat supplement interactions are the most serious?
Focus on the major group: Activated Charcoal. A major rating means the combination can be clinically significant, not that harm is guaranteed — but it's exactly the kind of thing to run past your pharmacist before your next dose, not after. Jump to the ranked list.
Can I take vitamins or supplements while on Cobicistat?
Plenty of supplements coexist fine with Cobicistat; 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 Tybost have the same supplement interactions as Cobicistat?
Yes — Tybost all contain Cobicistat, 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 Cobicistat and my other medications?
This page covers Cobicistat against supplements and herbal ingredients. Checking Cobicistat 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 Cobicistat 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 15, 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.