Interactions on record — worth a quick check against your medications. Based on 1 of 3 ingredients. Check your meds →
Dietary supplement

AHCC 750 mg Ingredients & Drug Interactions

by OL Olympian Labs, Inc.

AHCC 750 mg label
See full label image
Capsule Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking AHCC 750 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

AHCC 750 mg is a dietary supplement by OL Olympian Labs, Inc. with 3 active ingredients. Its ingredients are commonly taken for immune support, general wellness and nutrition, cholesterol and heart health.Based on those ingredients, 312 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Mushroom mycelia extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against AHCC 750 mg by OL Olympian Labs, Inc.

Ask about any prescription or over-the-counter medication and we check it for interactions with AHCC 750 mg by OL Olympian Labs, Inc. — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
Prefer a human? Send your question to our licensed pharmacists — free, answered by email within 24 hours.

HelloPharmacist Scorecard of AHCC 750 mg by OL Olympian Labs, Inc.

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 12, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 3 active ingredients.
  • “AHCC Proprietary Blend” is a proprietary blend — the label gives one combined amount (750 mg) without saying how much of each component you get.

AHCC 750 mg contains 3 active ingredients. The main component is an AHCC proprietary blend — a concentrated extract from shiitake mushroom mycelia (the root structure of the fungus).

Shiitake mushroom is used in traditional medicine and some supplement regimens, though the evidence for what it does in humans is limited. The product also contains inactive ingredients like microcrystalline cellulose (a binder), silicon dioxide, rice flour, and ascorbyl palmitate, all sealed in a vegetarian capsule.

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

This is a single-ingredient Shiitake Mushroom product and its label doesn't state a use — see Shiitake Mushroom's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence for shiitake mushroom extract in this product is sparse. For dental plaque, it's rated possibly ineffective.

For other uses — chemotherapy-induced anemia, atherosclerosis, breast cancer, and cancer in general — we simply don't have enough reliable evidence to rate whether it works. If you're considering AHCC for a specific health goal, it's worth talking to your doctor or pharmacist about what the science actually shows.

The evidence, ingredient by ingredient Shiitake Mushroom

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Shiitake mushroom as a cooked food is generally well tolerated. When taken as a concentrated supplement like this, side effects are usually mild — abdominal discomfort, bloating, diarrhea, nausea, and vomiting have been reported in some people.

Raw shiitake can cause a rash called shiitake dermatitis and rarely intestinal blockage. People who handle raw shiitake extensively may develop allergic reactions including asthma and skin inflammation.

The safety data on concentrated supplement doses is limited, so caution is advised if you decide to take it. Pregnancy and breastfeeding safety information is not on file for this ingredient.

If you're pregnant or nursing, talk with your doctor or pharmacist before starting AHCC.

Side effects, ingredient by ingredient Shiitake Mushroom

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Shiitake Mushroom.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: immunosuppressants / transplant drugs.
  • For scale: 312 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking AHCC, check your medications if you take immunosuppressants (a moderate interaction — this product may weaken their effect) or drugs metabolized by the CYP2D6 enzyme (also moderate, theoretically lowering drug levels). Use the medication checker on this page with your exact drugs to be sure.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

AHCC is a shiitake mushroom extract supplement with limited evidence for what it actually does. If you take immunosuppressants or medications processed by CYP2D6 enzymes, you need to check with your pharmacist first — this product could interfere.

It's generally tolerated, but concentrated supplements carry more risk than eating shiitake as food. Talk to your pharmacist before adding it to your routine.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Dec 23, 2016.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about AHCC 750 mg, straight from the product label.

Brand OL Olympian Labs, Inc.
Barcode (UPC) 710013911070
Net contents 30 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Dec 23, 2016
DSLD ID 67092
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), No Allergies, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for AHCC 750 mg by OL Olympian Labs, Inc., sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
30
UPC/BARCODE
710013911070
IngredientAmount% DV
AHCC Proprietary Blend750 mg--
Mushroom mycelia extract0 NP--
Microcrystalline Cellulose0 NP--
Candelilla Wax0 NP--

Other ingredients: Vegetarian Capsule, Silicon Dioxide, Rice Flour, Ascorbyl Palmitate

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
General Statements

Olympian Labs, Inc. products are made with the highest quality ingredients and manufactured according to current Good Manufacturing Practices (cGMP).

Clinically studied ingredients

For clinical studies visit aminoup.co.jp

Immune system support

T-cell activity support

30 servings

Made in USA

Precautions

Caution: If you are pregnant or nursing, have a medical condition, or are taking medication, consult your healthcare professional before using this or any other nutritional supplement.

Discontinue use if allergic reaction occurs.

Keep out of reach of children.

Storage

Store in a cool, dry place.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

General

REV 05-19-16

Suggested/Recommended/Usage/Directions

One a day

Suggested Use: As a dietary supplement, take one (1) capsule daily on an empty stomach, or as directed by a healthcare professional.

Formulation

Vegan

Allergen free

No: Milk, Eggs, Fish, Crustaceans Shellfish, Tree Nuts, Peanuts, Wheat, or Soybeans.

Brand IP Statement(s)

AHCC is a registered trademark of Amino Up Chemical Company, Ltd. of Hokkaido, Japan

Formula

Allergen free

Mushroom mycelia extract

Active Hexose Correlated Compound

FDA Statement of Identity

Dietary Supplement

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

AHCC 750 mg by OL Olympian Labs, Inc. label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

AHCC 750 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in AHCC 750 mg by OL Olympian Labs, Inc.

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

AHCC Proprietary Blend

750 mg per serving

Other (inactive) ingredients: Vegetarian Capsule, Silicon Dioxide, Rice Flour, Ascorbyl Palmitate. These complete the product’s ingredient list but are not active constituents.

Interaction report

AHCC 750 mg by OL Olympian Labs, Inc. Drug Interactions

Want to check YOUR meds against AHCC 750 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
312Drugs
312 Moderate

Ingredients driving the most interactions

Mushroom mycelia extract 312

Individual Drug Interactions

The ingredients in AHCC 750 mg interact with 312 drugs. Click any drug to see the details.

1 of the 3 ingredients in AHCC 750 mg interact with drugs. Each result below shows which ingredient is responsible. Mushroom mycelia extract

Each ingredient & the kinds of drugs it affects

For each ingredient in AHCC 750 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Mushroom mycelia extract2 drug types · 312 drugs

Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, shiitake mushroom might decrease levels of drugs metabolized by CYP2D6.
In vitro studies suggest that the shiitake mushroom extract AHCC might induce the CYP2D6 enzyme. This effect has not been reported in humans.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, taking shiitake mushroom might decrease the effects of immunosuppressive therapy.
In vitro evidence suggests that shiitake mushroom extracts stimulate immune function.

Likelihood Possible Evidence D
Mushroom mycelia extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for AHCC 750 mg, from the product label.

OL Olympian Labs, Inc.

Name
Olympian Labs, Inc.
City
Phoenix
State
AZ
ZipCode
85027
Phone Number
1-800-473-5883
Web Address
www.olympianlabs.com
Pharmacist Counseling Corner

AHCC 750 mg by OL Olympian Labs, Inc.: Common Questions

Does AHCC 750 mg by OL Olympian Labs, Inc. interact with any medications?
Yes. Based on its ingredients, AHCC 750 mg has a known interaction with 312 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
AHCC 750 mg contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What is AHCC and where does it come from?
AHCC is a concentrated extract made from shiitake mushroom mycelia — the root structure of the fungus. It's used in some supplement regimens, though strong human evidence for what it does is limited.
Can I take this if I'm on an immunosuppressant medication?
Not without checking with your pharmacist first. Shiitake mushroom may theoretically decrease how well immunosuppressants work, since lab studies show it stimulates immune function. Your doctor or pharmacist needs to weigh whether this product is safe for you personally.
What side effects should I watch for?
Most people who take shiitake as a concentrated supplement experience mild digestive issues — bloating, diarrhea, nausea, or abdominal discomfort. Raw shiitake can cause a distinctive rash. If you handle it extensively, allergic reactions like asthma or skin inflammation can occur.
Is AHCC proven to work for cancer or chemotherapy side effects?
We don't have enough reliable evidence to say whether it works for cancer, chemotherapy-induced anemia, nausea, or other uses people try it for. For dental plaque, it's rated possibly ineffective. Talk to your doctor about what the current evidence actually supports.
Is it safe to take during pregnancy or while breastfeeding?
We don't have safety data on file for this ingredient during pregnancy or breastfeeding. If you're pregnant or nursing, talk with your doctor or pharmacist before starting AHCC — they can give you personalized advice based on your situation.

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

Not sure if AHCC 750 mg is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

AHCC 750 mg label
Go deeper

The Full Monographs Behind AHCC 750 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Shiitake Mushroom

Interacts with 312 drugs

Shiitake is a popular edible mushroom that is nutritious and safe to eat as food for most people. Some of its extracts (like lentinan and AHCC) have been studied as immune support, mainly al...

Read the full Shiitake Mushroom monograph →
Sources

Sources & How We Checked

AHCC 750 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

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

The 67 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Shiitake Mushroom 67 references
  1. Hitosugi M, Kitamura O, Takatsu A, Yoshino Y. Autopsy case of duodenal obstruction from impacted mushroom. J Gastroenterol 1998;33:562-5. PubMed
  2. Hanada K, Hashimoto I. Flagellate mushroom (Shiitake) dermatitis and photosensitivity. Dermatol 1998;197:255-7. PubMed
  3. Levy AM, Kita H, Phillips SF, et al. Eosinophilia and gastrointestinal symptoms after ingestion of shiitake mushrooms. J Allergy Clin Immunol 1998;101:613-20. PubMed
  4. Murakami M, Kawabe K, Hosoi Y, et al. Decreased pulmonary perfusion in hypersensitivity pneumonitis caused by Shiitake mushroom spores. J Intern Med 1997;241:85-8. PubMed
  5. Matsui S, Nakazawa T, Umegae Y, Mori M. Hypersensitivity pneumonitis induced by Shiitake mushroom spores. Intern Med 1992;31:1204-6.
  6. Nakamura T. Shiitake (Lentinus edodes) dermatitis. Contact Dermatitis 1992;27:65-70.
  7. Ueda A, Obama K, Aoyama K, et al. Allergic contact dermatitis in shiitake (Lentinus edodes (Berk) Sing) growers. Contact Dermatitis 1992;26:228-33.
  8. 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.
  9. 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
  10. 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
  11. 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
  12. Spierings, E. L., Fujii, H., Sun, B., and Walshe, T. A Phase I study of the safety of the nutritional supplement, active hexose correlated compound, AHCC, in healthy volunteers. J Nutr Sci Vitaminol.(Tokyo) 2007;53(6):536-539. PubMed
  13. 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
  14. Ritz, B. W. Supplementation with active hexose correlated compound increases survival following infectious challenge in mice. Nutr.Rev. 2008;66(9):526-531. PubMed
  15. 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
  16. 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.
  17. 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
  18. Sumiyoshi, Y., Hashine, K., Kakehi, Y., Yoshimura, K., Satou, T., Kuruma, H., Namiki, S., and Shinohara, N. Dietary administration of mushroom mycelium extracts in patients with early stage prostate cancers managed expectantly: a phase II study. Jpn.J Cl PubMed
  19. 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.
  20. 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.
  21. 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
  22. 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
  23. 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.
  24. 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.
  25. Thaiudom, S., Piyaniran, W., and Chutaputthi, A. A study of the efficacy of Active Hexose Correlated Compound (AHCC) in the treatment of chronic Hepatitis C patients at Phramongkutklao Hospital. The Medical News (Thailand) 2010;325:13-16.
  26. 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
  27. Sia, G. M. and Candlish, J. K. Effects of shiitake (Lentinus edodes) extract on human neutrophils and the U937 monocytic cell line. Phytother.Res. 1999;13(2):133-137. DOI
  28. Fujiwara, K., Sato, T., Yonei, T., Genba, K., Nogami, N., and Yamadori, I. [A case of chronic hypersensitivity pneumonitis induced by shiitake mushroom spores]. Nihon Kokyuki.Gakkai Zasshi 2000;38(12):908-913.
  29. Lippert, U., Martin, V., Schwertfeger, C., Junghans, V., Ellinghaus, B., and Fuchs, T. Shiitake dermatitis. Br.J Dermatol. 2003;148(1):178-179.
  30. Lobanok, A. G., Babitskaia, V. G., Plenina, L. V., Puchkova, T. A., and Osadchaia, O. V. [Composition and biological activity of submerged mycelium of the xylotrophic basidiomycete Lentinus edodes]. Prikl.Biokhim.Mikrobiol. 2003;39(1):69-73. DOI
  31. Curnow, P. and Tam, M. Contact dermatitis to Shiitake mushroom. Australas.J.Dermatol. 2003;44(2):155-157. PubMed
  32. Mak, R. K. and Wakelin, S. H. Shiitake dermatitis: the first case reported from a European country. Br J Dermatol 2006;154(4):800-801. PubMed
  33. Sastre, J., Ibanez, M. D., Lopez, M., and Lehrer, S. B. Respiratory and immunological reactions among Shiitake (Lentinus edodes) mushroom workers. Clin.Exp.Allergy 1990;20(1):13-19.
  34. Liu, M., Li, J., Kong, F., Lin, J., and Gao, Y. Induction of immunomodulating cytokines by a new polysaccharide-peptide complex from culture mycelia of Lentinus edodes. Immunopharmacology 1998;40(3):187-198. PubMed
  35. Ade R, Sukut C, Wiser HJ, Shockman S, Buescher L. Shiitake dermatitis demonstrating Köebner phenomenon. Int J Dermatol. 2015;54(5):e179-81.
  36. Adler MJ, Larsen WG. Clinical variability of shiitake dermatitis. J Am Acad Dermatol. 2012 Oct;67(4):e140-1. PubMed
  37. Adriano AR, Acosta ML, Azulay DR, Quiroz CD, Talarico SR. Shiitake dermatitis: the first case reported in Brazil. An Bras Dermatol. 2013 May-Jun;88(3):417-9. PubMed
  38. Ampere A, Delhaes L, Soots J, Bart F, Wallaert B. Hypersensitivity pneumonitis induced by Shiitake mushroom spores. Med Mycol. 2012 Aug;50(6):654-7. PubMed
  39. Baran W, Batycka-Baran A, Maj J, Szepietowski JC. Shiitake dermatitis - now also in Poland. Acta Derm Venereol. 2015 Jan;95(1):102-3. PubMed
  40. Boels D, Landreau A, Bruneau C, et al. Shiitake dermatitis recorded by French Poison Control Centers - new case series with clinical observations. Clin Toxicol (Phila). 2014 Jul;52(6):625-8. PubMed
  41. Chu EY, Anand D, Dawn A, Elenitsas R, Adler DJ. Shiitake dermatitis: a report of 3 cases and review of the literature. Cutis. 2013 Jun;91(6):287-90.
  42. Corazza M, Zauli S, Ricci M, et al. Shiitake dermatitis: toxic or allergic reaction? J Eur Acad Dermatol Venereol. 2015 Jul;29(7):1449-51. PubMed
  43. Czarnecka AB, Kreft B, Marsch WCh. Flagellate dermatitis after consumption of Shiitake mushrooms. Postepy Dermatol Alergol. 2014 Jun;31(3):187-90. PubMed
  44. Dai X, Stanilka JM, Rowe CA, et al. Consuming Lentinula edodes (Shiitake) Mushrooms Daily Improves Human Immunity: A Randomized Dietary Intervention in Healthy Young Adults. J Am Coll Nutr. 2015;34(6):478-87.
  45. Hamer SE, Kulkarni K, Cohen SN. Shiitake dermatitis with oral ulceration and pustules. Clin Exp Dermatol. 2015 Apr;40(3):332-3. PubMed
  46. Hiernickel C, Metz S, Elsner P. Shiitake dermatitis: an impressive case report. J Dtsch Dermatol Ges. 2015 May;13(5):455-6. PubMed
  47. Karanovic S, George S, Topham E. Don't miss shiitake dermatitis: a case report. Br J Gen Pract. 2014 Aug;64(625):426-7. PubMed
  48. Kopp T, Mastan P, Mothes N, Tzaneva S, Stingl G, Tanew A. Systemic allergic contact dermatitis due to consumption of raw shiitake mushroom. Clin Exp Dermatol. 2009 Dec;34(8):e910-3. PubMed
  49. Lingström P, Zaura E, Hassan H, et al. The anticaries effect of a food extract (shiitake) in a short-term clinical study. J Biomed Biotechnol. 2012;2012:217164. PubMed
  50. Loo HV, Oon HH. Flagellate dermatitis following consumption of shiitake mushroom. Dermatol Reports. 2011 Oct 5;3(2):e21. PubMed
  51. Luber AJ, Ackerman LS. Flagellate shiitake mushroom dermatitis. Dermatol Online J. 2015 Aug 15;21(8). pii: 13030/qt7rm57553. DOI
  52. Mendonça CN, Silva PM, Avelleira JC, Nishimori FS, Cassia Fde F. Shiitake dermatitis. An Bras Dermatol. 2015 Mar-Apr;90(2):276-8.
  53. Netchiporouk E, Pehr K, Ben-Shoshan M, Billick RC, Sasseville D, Singer M. Pustular flagellate dermatitis after consumption of shiitake mushrooms. JAAD Case Rep. 2015 May 2;1(3):117-9. PubMed
  54. Nguyen AH, Gonzaga MI, Lim VM, Adler MJ, Mitkov MV, Cappel MA. Clinical features of shiitake dermatitis: a systematic review. Int J Dermatol. 2017 Jun;56(6):610-616. PubMed
  55. Poppe LM, Anders D, Kneitz H, Bröcker EB, Benoit S. Flagellate dermatitis caused by shiitake mushrooms. An Bras Dermatol. 2012 May-Jun;87(3):463-5. PubMed
  56. Pravettoni V, Primavesi L, Piantanida M. Shiitake mushroom (Lentinus edodes): a poorly known allergen in Western countries responsible for severe work-related asthma. Int J Occup Med Environ Health. 2014 Oct;27(5):871-4. PubMed
  57. Ricar J, Pizinger K, Cetkovska P. Shiitake dermatitis: a distinctive clinical entity. Int J Dermatol. 2013 Dec;52(12):1620-1. PubMed
  58. Shozushima M, Ohata K, Nonaka K, Matsuhashi N. Shiitake mushroom-induced ileus managed using double-balloon enteroscopy. Endoscopy. 2013;45 Suppl 2 UCTN:E437. PubMed
  59. Uslu U, Linkner RV. Shiitake mushroom dermatitis. Cutis. 2015 May;95(5):E11-2.
  60. Wang AS, Barr KL, Jagdeo J. Shiitake mushroom-induced flagellate erythema: A striking case and review of the literature. Dermatol Online J. 2013 Apr 15;19(4):5. DOI
  61. Tan J, Yuan K, Zuo J, et al. Two cases of small bowel obstruction due to a shiitake mushroom. Gastroenterol Rep (Oxf) 2019;7(4):298-300. doi: 10.1093/gastro/gox028. PubMed
  62. Boels D, Greillet C, Langrand J, et al. Shiitake dermatitis: experience of the Poison Control Centre Network in France from 2014 to 2019. Clin Toxicol (Phila) 2022. PubMed
  63. Miyagishima D, Inoue M, Kinjo K, et al. A case of bowel obstruction due to shiitake mushrooms: Diagnostic features on computed tomography. Intern Med 2022. PubMed
  64. Soga K, Mukai H, Kitae H. Management of shiitake mushroom-induced ileus using balloon enteroscopy. Dig Endosc 2022;34(4):e58-e59. PubMed
  65. Ma JY, Liu JW. Shiitake flagellate dermatitis. Mayo Clin Proc 2022;97(12):2192-2193. PubMed
  66. Booms A, Rashid Z, Al-Rubaie V, Bal A. Shiitake dermatitis: a case report of a rare mushroom-induced dermatitis in the United States. Int J Dermatol 2022. PubMed
  67. Sudy E, Urbina F. Shiitake dermatitis: clinical forms of presentation. Int J Dermatol 2023. PubMed

See these in context on the Shiitake Mushroom monograph →

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
Supplement interaction checker › Check any supplement or product against your medications Drug–drug interactions › Check two or more of your medications against each other Browse medications A–Z › Every drug we've checked against herbs & supplements NDC & pricing lookup › Find a drug’s NDCs, packaging and costs Ask a pharmacist › Free, personal answer from our licensed team