Drug & supplement interaction

Active Hexose Correlated Compound (ahcc) + Flecainide

Flecainide brand name: Tambocor.

Moderate Interaction
Medically reviewed by · Updated November 2024
The bottom line Moderate

Active Hexose Correlated Compound (ahcc) has a moderate interaction with Flecainide. Theoretically, AHCC might increase levels of drugs metabolized by CYP2D6.

Read the full interaction report
SeverityModerate
LikelihoodPossible
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Active Hexose Correlated Compound (ahcc) and Flecainide

Here is the interaction we found between these two, with the evidence behind it.

Moderate

CYTOCHROME P450 2D6 (CYP2D6) SUBSTRATES

Why this applies to Flecainide

Flecainide falls under CYTOCHROME P450 2D6 (CYP2D6) SUBSTRATES — the group Active Hexose Correlated Compound (ahcc) interacts with.

Theoretically, AHCC might increase levels of drugs metabolized by CYP2D6.
In vitro studies suggest that AHCC might induce the CYP2D6 enzyme. This effect has not been reported in humans.
Severity Moderate Likelihood Possible Evidence D

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.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the situation with flecainide and AHCC. Your liver uses an enzyme called CYP2D6 to help clear flecainide out of your body. Some early lab tests hint that AHCC might speed that enzyme up. If that actually happened in people, your body could clear flecainide a little faster, which in theory might make it work less well at keeping your heart rhythm steady.

I want to be honest about how thin this evidence is. This comes only from test-tube studies, and it has never been shown in real patients. Still, flecainide is a drug where steady levels really matter, so don't add AHCC on your own. Check with your doctor or pharmacist first so they can keep an eye on you.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Mach, C. M., Fugii, H., Wakame, K., and Smith, J. Evaluation of active hexose correlated compound hepatic metabolism and potential for drug interactions with chemotherapy agents. J Soc Integr.Oncol. 2008;6(3):105-109.
  2. Smith, J. A., Hunter, R. J., Fujii, H., Wakame, K., and Wolf, J. Defining Synergistic Activity ofthe Combination of Active Hexose Correlated Compound (AHCC) with Liposomal Doxorubicin (Doxil). Presented at the 18th International Congress on Nutrition and

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction 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.
  • PossibleInteraction 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.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Active Hexose Correlated Compound (ahcc) Also Interacts With Other Medications

Active Hexose Correlated Compound (ahcc) has 311 moderate known drug interactions in our database — the Flecainide one above is one of them. If you take anything else, check it against the full list below.

Moderate 311 No known interaction 2,519 (incl. Flecainide)
Taking anything else?

Check Another of Your Medications Against Active Hexose Correlated Compound (ahcc)

Covers the 2,830 medications we’ve checked against Active Hexose Correlated Compound (ahcc). Pick one to open its full report.

From our Q&A

Questions About Active Hexose Correlated Compound (ahcc) or Flecainide

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Active Hexose Correlated Compound (ahcc) or Flecainide, 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 Flecainide

This page covers Active Hexose Correlated Compound (ahcc) only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Flecainide page lists 86 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), Arsenic (major), Cesium (major) and Ephedra (major).

By severity: 7 major · 61 moderate · 18 minor.

From our pharmacist’s overview on the Flecainide page

“Flecainide (Tambocor) exists to control serious heart rhythm problems, so anything that disturbs the rhythm it protects deserves genuine caution. Six of the seven major-rated entries among the 86 supplements and herbs on file, grapefruit in large amounts included, can prolong the QT interval, the heart's electrical reset time, adding t…”

Reviewed by 2 · Jul 18, 2026

Open the Flecainide interaction page

How much people look this up

Where Active Hexose Correlated Compound (ahcc) and Flecainide 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 Active Hexose Correlated Compound (ahcc)
Top half

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

29 days ago today
Medication Flecainide
Top 25%

#631 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.

Supplement

About Active Hexose Correlated Compound (ahcc)

What is Active Hexose Correlated Compound (ahcc)?

Active Hexose Correlated Compound (ahcc)
  • Immune support
  • Supporting people during chemotherapy
  • General wellness
  • Liver health
  • HPV-related concerns

AHCC is a proprietary mushroom-derived supplement promoted mainly for immune support and to help people tolerate cancer treatment. Early human studies are interesting but small, and the overall evidence is limited and not conclusive for any condition. Talk with your pharmacist or doctor before using it, especially if you have a health condition or take medications.

Read the full Active Hexose Correlated Compound (ahcc) monograph & all interactions
Medication

About Flecainide

What Is Flecainide Used For?

Brand name: Tambocor

Flecainide Acetate tablets are used to prevent episodes of certain abnormal heart rhythms. In patients without structural heart disease, it is approved to prevent paroxysmal supraventricular tachycardia (PSVT — episodes of rapid heart rate starting above the ventricles) and paroxysmal atrial fibrillation/flutter (PAF — intermittent episodes of irregular, rapid heart rhythm in the upper chambers), when these cause disabling symptoms.

Flecainide Acetate tablets are also used to prevent life-threatening ventricular arrhythmias — dangerous rapid rhythms starting in the lower chambers of the heart, such as sustained ventricular tachycardia. It is not recommended for less serious ventricular arrhythmias, for patients with a recent heart attack, or for chronic (ongoing, persistent) atrial fibrillation.

See full Flecainide drug information
Keep checking

Other Drugs & Active Hexose Correlated Compound (ahcc)

Browse every other medication we’ve checked against Active Hexose Correlated Compound (ahcc) — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
311Moderate
0Minor
2,518No known interaction
311 Moderate 2,518 No interaction
Moderate

311 interactions

Showing 60 of 311 moderate interactions — see all 311 on the Active Hexose Correlated Compound (ahcc) page.

No interaction 2,518 drugs checked — show the list

We also checked Active Hexose Correlated Compound (ahcc) against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,518 medications checked with no known interaction — see the full Active Hexose Correlated Compound (ahcc) list.

See the full Active Hexose Correlated Compound (ahcc) interactions page
See every supplement checked against Flecainide, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Active Hexose Correlated Compound (ahcc) monograph › Uses, safety, and every drug interaction in one place Flecainide supplement interactions › Every supplement checked against Flecainide, ranked by severity Flecainide drug information › The full plain-English guide to this medication Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Active Hexose Correlated Compound (ahcc) and Flecainide Together: Common Questions

Can you take Active Hexose Correlated Compound (ahcc) with Flecainide?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Active Hexose Correlated Compound (ahcc) and Flecainide interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

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

Still Have a Question About Flecainide and Active Hexose Correlated Compound (ahcc)?

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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.