Drug & supplement interaction

Active Hexose Correlated Compound (ahcc) + Phenytoin

Phenytoin brand names: Dilantin Kapseals, Dilantin, Di-Phen, Dilantin Infatabs, Phenytek, and others.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated June 2026 · Pair last verified Sep 20, 2026

The bottom line No known interaction

We found no known interaction between Active Hexose Correlated Compound (ahcc) and Phenytoin 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.

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Interaction report

Active Hexose Correlated Compound (ahcc) and Phenytoin

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 Phenytoin and Active Hexose Correlated Compound (ahcc) 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.

Active Hexose Correlated Compound (ahcc) safety at a glance

Active Hexose Corr... overall Use caution Generally well tolerated in short-term studies, but long-term safety is not well established.

Pregnancy Avoid There is not enough safety information, so it is best avoided during pregnancy.

Breastfeeding Avoid There is not enough safety information, so it is best avoided while breastfeeding.

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

Still wondering about combining Phenytoin and Active Hexose Correlated Compound (ahcc)? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

How we checked

Why No Interaction Is Listed for Phenytoin

Interactions in our licensed database are recorded against drug classes, not just single drug names. Phenytoin is filed under 14 classifications — including cytochrome p450 2c8 (cyp2c8) substrates, cytochrome p450 2c9 (cyp2c9) inducers, anticonvulsants. Active Hexose Correlated Compound (ahcc) has documented interactions with 2 drug classes — the most serious being cytochrome p450 2d6 (cyp2d6) substrates (moderate) and immunosuppressants (moderate) — and none of Phenytoin’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

Active Hexose Correlated Compound (ahcc) Does Interact With Other Medications

Active Hexose Correlated Compound (ahcc) has 312 moderate known drug interactions in our database — Phenytoin isn’t one of them. If you take anything else, check it against the full list below.

Moderate 312 No known interaction 2,518 (incl. Phenytoin)

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.

What to actually watch for

What Phenytoin’s Own FDA Label Lists

This is not an interaction — none of it involves Active Hexose Correlated Compound (ahcc). These are the most notable effects listed in the ADVERSE REACTIONS section of Phenytoin’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 10 of them are worth acting on rather than waiting out — marked below.

A change in thyroid levels Worth acting on
Unsteadiness Worth acting on
High blood sugar Worth acting on
Confusion Worth acting on
A severe skin reaction Worth acting on
Seizures Worth acting on
A low platelet count Worth acting on
Anemia Worth acting on
A severe allergic reaction Worth acting on
Hives Worth acting on

Showing the 10 most notable of 25 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Phenytoin. Read the label on DailyMed › Active Hexose Correlated Compound (ahcc)’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Active Hexose Correlated Compound (ahcc) side to compare — that is a limit of the record, not a statement that Active Hexose Correlated Compound (ahcc) has no side effects.

From our Q&A

Questions About Active Hexose Correlated Compound (ahcc) or Phenytoin

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 Phenytoin, 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 Phenytoin

This page covers Active Hexose Correlated Compound (ahcc) only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Phenytoin page lists 224 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Beer (major), Gamma-hydroxybutyrate (ghb) (major) and Kava (major).

By severity: 9 major · 187 moderate · 28 minor.

From our pharmacist’s overview on the Phenytoin page

“Phenytoin (Dilantin) is a seizure medicine with a narrow therapeutic index, meaning small changes in its blood level can bring seizures back or tip over into toxicity, so I treat its supplement list with real seriousness. The biggest group, 78 ingredients, piles on sedation, and alcohol, kava, and GHB all rate major for exactly that re…”

Reviewed by 2 · Jul 18, 2026

Open the Phenytoin interaction page

How much people look this up

Where Active Hexose Correlated Compound (ahcc) and Phenytoin 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)

Steady interest

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

29 days ago today

Medication Phenytoin

Top 25%

#608 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 Active Hexose Correlated Compound (ahcc) reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Active Hexose Correlated Compound (ahcc) and Phenytoin records this page draws on were last updated June 20, 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 Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Active Hexose Correlated Compound (ahcc)

What is 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.

Cultured mycelia of basidiomycete mushrooms (including shiitake, Lentinula edodes) · Capsules, tablets, powder

An interaction check asks whether these two react with each other — it does not ask whether Active Hexose Correlated Compound (ahcc) is a good idea for someone in your situation. Here is what our Active Hexose Correlated Compound (ahcc) record says about it on its own.

Active Hexose Correlated Compound (ahcc): dosing

There is no official standardized dose of AHCC, and the amount used has varied across studies.

From our Active Hexose Correlated Compound (ahcc) monograph — the full record covers uses, side effects and every documented interaction.

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

Medication

About Phenytoin

What Is Phenytoin Used For?

Brand names: Dilantin Kapseals, Dilantin, Di-Phen, Dilantin Infatabs, Phenytek, Dilantin injection

Phenytoin is used to treat and prevent seizures. The specific types covered depend on the formulation. Oral extended-release capsules (including Phenytek), chewable tablets (including Dilantin Infatabs and Phenytoin Infatabs), and oral suspension (including Dilantin-125) are used for tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures; most oral forms also cover prevention and treatment of seizures occurring during or after neurosurgery. Chewable tablets and some capsule formulations also cover complex partial seizures.

Parenteral (injectable) phenytoin sodium is used for generalized tonic-clonic status epilepticus (a prolonged, life-threatening seizure emergency) and for prevention and treatment of seizures during neurosurgery. The IV form can also substitute short-term for oral phenytoin when a patient cannot take it by mouth.

Most-Reported Side Effects for Phenytoin

From FAERS, the FDA’s public side-effect reporting system (40,278 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Convulsion 3,522 reports

Seizure 3,095 reports

Toxicity to various agents 1,888 reports

Fall 1,604 reports

Dizziness 1,539 reports

See full Phenytoin 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

312Moderate

0Minor

2,517No known interaction

312 Moderate 2,517 No interaction

Moderate

312 interactions

Showing 60 of 312 moderate interactions — see all 312 on the Active Hexose Correlated Compound (ahcc) page.

No interaction 2,517 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 2,517 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 Phenytoin, ranked by severity

Evidence & sources

Active Hexose Correlated Compound (ahcc) References

The 16 references that drive our Active Hexose Correlated Compound (ahcc) 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.

Burikhanov, R. B., Wakame, K., Igarashi, Y., Wang, S., and Matsuzaki, S. Suppressive effect of active hexose correlated compound (AHCC) on thymic apoptosis induced by dexamethasone in the rat. Endocr.Regul. 2000;34(4):181-188.
Gao, Y., Zhang, D., Sun, B., Fujii, H., Kosuna, K., and Yin, Z. Active hexose correlated compound enhances tumor surveillance through regulating both innate and adaptive immune responses. Cancer Immunol.Immunother. 2006;55(10):1258-1266. PubMed
Ritz, B. W., Nogusa, S., Ackerman, E. A., and Gardner, E. M. Supplementation with active hexose correlated compound increases the innate immune response of young mice to primary influenza infection. J Nutr. 2006;136(11):2868-2873. PubMed
Aviles, H., O'Donnell, P., Sun, B., and Sonnenfeld, G. Active hexose correlated compound (AHCC) enhances resistance to infection in a mouse model of surgical wound infection. Surg.Infect.(Larchmt.) 2006;7(6):527-535. PubMed
Aviles, H., O'Donnell, P., Orshal, J., Fujii, H., Sun, B., and Sonnenfeld, G. Active hexose correlated compound activates immune function to decrease bacterial load in a murine model of intramuscular infection. Am J Surg. 2008;195(4):537-545. PubMed
Ritz, B. W. Supplementation with active hexose correlated compound increases survival following infectious challenge in mice. Nutr.Rev. 2008;66(9):526-531. PubMed
Terakawa, N., Matsui, Y., Satoi, S., Yanagimoto, H., Takahashi, K., Yamamoto, T., Yamao, J., Takai, S., Kwon, A. H., and Kamiyama, Y. Immunological effect of active hexose correlated compound (AHCC) in healthy volunteers: a double-blind, placebo-controll
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.
Wang, S., Welte, T., Fang, H., Chang, G. J., Born, W. K., O'Brien, R. L., Sun, B., Fujii, H., Kosuna, K., and Wang, T. Oral administration of active hexose correlated compound enhances host resistance to West Nile encephalitis in mice. J Nutr. 2009;139(3 PubMed
Yin, Z., Fujii, H., and Walshe, T. Effects of active hexose correlated compound on frequency of CD4+ and CD8+ T cells producing interferon-gamma and/or tumor necrosis factor-alpha in healthy adults. Hum.Immunol. 2010;71(12):1187-1190.
Lee, W. W., Lee, N., Fujii, H., and Kang, I. Active Hexose Correlated Compound promotes T helper (Th) 17 and 1 cell responses via inducing IL-1beta production from monocytes in humans. Cell Immunol. 2012;275(1-2):19-23.
Daddaoua, A., Martinez-Plata, E., Ortega-Gonzalez, M., Ocon, B., Aranda, C. J., Zarzuelo, A., Suarez, M. D., de Medina, F. S., and Martinez-Augustin, O. The nutritional supplement Active Hexose Correlated Compound (AHCC) has direct immunomodulatory actio
Roman, B. E., Beli, E., Duriancik, D. M., and Gardner, E. M. Short-term supplementation with active hexose correlated compound improves the antibody response to influenza B vaccine. Nutr Res. 2013;33(1):12-17. PubMed
Uno, K., Kosuna, K., Sun, B., Fujii, H., Wakame, K., Chikumaru, S., Hosokawa, G., and Ueda, Y. Active Hexose Correlated Compound (AHCC) Improves Immunological Parameters and Performance Status of Patients with Solid Tumors. Biotherapy 2000;14(3):303-309.
Ghoneum, M., Wimbley, M., Salem, F., McKlain, A., Attallah, N., and Gill, G. Immunomodulatory and anticancer effects of active hexose correlated compound (AHCC). Int J Immunother 1995;11:23-28.
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

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.

Related: nutrient depletion

Phenytoin Is Linked to Lower Levels of 13 Nutrients

Natural Medicines records Phenytoin as a medicine that can lower these. This is not an interaction with Active Hexose Correlated Compound (ahcc) — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:

Read the full Phenytoin nutrient depletion report ›

Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.

Pharmacist Counseling Corner

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

Is it safe to take Active Hexose Correlated Compound (ahcc) with Phenytoin?

We do not list a known interaction between Active Hexose Correlated Compound (ahcc) and Phenytoin. 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.

How was the Active Hexose Correlated Compound (ahcc) and Phenytoin combination checked?

Interactions in our licensed database are recorded against drug classes. Phenytoin is filed under 14 classifications, and Active Hexose Correlated Compound (ahcc) has documented interactions with 2 drug classes — none of Phenytoin'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 Active Hexose Correlated Compound (ahcc) interact with any other medications?

Yes. Active Hexose Correlated Compound (ahcc) has 312 documented drug interactions in our database — Phenytoin 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 Phenytoin interact with any supplements?

Yes. Phenytoin has documented interactions with 224 supplements in our database — Active Hexose Correlated Compound (ahcc) is not one of them. The Phenytoin 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

Active Hexose Correlated Compound (ahcc) monograph Uses, safety profile, and every drug interaction in one place Phenytoin drug information The full plain-English guide to this medication Phenytoin supplement interactions Every supplement checked against Phenytoin, 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 16 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Phenytoin 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.