Interactions on record — worth a quick check against your medications. Based on 1 of 2 ingredients. Check your meds →
Dietary supplement

Cellular Essentials NK-5 Ingredients & Drug Interactions

by Swanson Condition Specific Formulas

Cellular Essentials NK-5 label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Cellular Essentials NK-5 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

Cellular Essentials NK-5 is a dietary supplement by Swanson Condition Specific Formulas with 2 active ingredients. Its ingredients are commonly taken for immune support, blood sugar support in diabetes, high blood pressure.Based on those ingredients, 260 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Grifola frondosa. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Cellular Essentials NK-5 by Swanson Condition Specific Formulas

Ask about any prescription or over-the-counter medication and we check it for interactions with Cellular Essentials NK-5 by Swanson Condition Specific Formulas — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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Computed from our clinical databases

HelloPharmacist Scorecard of Cellular Essentials NK-5 by Swanson Condition Specific Formulas

Four independent checks of what is known — a summary of the available information, not a grade of the product itself.

Evidence for Intended Use
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

The stated purpose hasn't been mapped to our evidence data yet.

Why this rating?
  • We haven't mapped this product's purpose to our evidence data yet — it'll be graded on the next content refresh.
Ingredient Transparency
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 2 of its 2 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.
Known Interaction Concern
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 — Maitake Mushroom.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 260 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.
Safety Information
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.

HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Nov 20, 2017.

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 Cellular Essentials NK-5, straight from the product label.

Brand Swanson Condition Specific Formulas
Barcode (UPC) 087614070810
Net contents 60 Veggie Capsule(s)
Market status Off market
Date entered into DSLD Nov 20, 2017
DSLD ID 78472
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other
Intended target group(s) Vegetarian, Adult (18 - 50 Years)
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 Cellular Essentials NK-5 by Swanson Condition Specific Formulas, 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 Veggie Capsule(s)
Maximum serving Sizes:
1 Veggie Capsule(s)
UPC/BARCODE
087614070810
IngredientAmount% DV
Grifola frondosa300 mg--
MaitakeGold 404 Maitake Mushroom extract15 mg--

Other ingredients: Rice Flour, Hypromellose, Calcium 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.
Seals/Symbols

V Vegetarian formula

Guaranteed purity & potency

Formulation

V Vegetarian formula

FDA Statement of Identity

Herbal Supplement

Precautions

Do not use if seal is broken.

Keep out of reach of children.

Storage

Store in a cool, dry place.

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, take one veggie capsule one to three times per day with water.

General Statements

To reorder, call toll free 1-800-437-4148 or visit our website at www.swansonvitamins.com

Brand IP Statement(s)

MaitakeGold 404 is a registered trademark of Tradeworks Group, Inc. and is protected under U.S. patent #5,854,404.

MaitakeGold 404

General

SWC081

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

See for yourself

Cellular Essentials NK-5 by Swanson Condition Specific Formulas label

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

Cellular Essentials NK-5 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 Cellular Essentials NK-5 by Swanson Condition Specific Formulas

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Veggie Capsule(s) Dosage formCapsule 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.

Grifola frondosa

Interacts with
260 drugs
300 mg per serving

Maitake is an edible mushroom long used as food and in traditional Japanese medicine, and it is being studied for possible immune, blood sugar, and bl...

Grifola frondosa monograph & interactions

MaitakeGold 404 Maitake Mushroom extract

Interacts with
260 drugs
15 mg per serving

Maitake is an edible mushroom long used as food and in traditional Japanese medicine, and it is being studied for possible immune, blood sugar, and bl...

MaitakeGold 404 Maitake Mushroom extract monograph & interactions

Other (inactive) ingredients: Rice Flour, Hypromellose, Calcium Palmitate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Cellular Essentials NK-5 by Swanson Condition Specific Formulas Drug Interactions

Cellular Essentials NK-5 contains 2 ingredients, and 1 of them has known drug interactions. Altogether it interacts with 260 medications. Here’s the picture, then you can look up your own drug.

Want to check YOUR meds against Cellular Essentials NK-5?

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
260Drugs
260 Moderate

Ingredients driving the most interactions

Grifola frondosa 260

Individual Drug Interactions

The ingredients in Cellular Essentials NK-5 interact with 260 drugs. Click any drug to see the details.

1 of the 2 ingredients in Cellular Essentials NK-5 interact with drugs. Each result below shows which ingredient is responsible. Grifola frondosa

Each ingredient & the kinds of drugs it affects

For each ingredient in Cellular Essentials NK-5 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.

Grifola frondosa3 drug types · 260 drugs

Antidiabetes Drugs

Theoretically, combining maitake mushroom with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical research shows that taking maitake mushroom polysaccharide (MMP) can lower blood glucose levels in patients with types 2 diabetes.

Likelihood Possible Evidence B
Antihypertensive Drugs

Theoretically, combining maitake mushroom with antihypertensive drugs might increase the risk of hypotension.
Animal research shows that maitake mushroom can lower blood pressure.

Likelihood Possible Evidence D
Warfarin (Coumadin)

There is limited evidence that maitake mushroom may increase the anticoagulant effects of warfarin.
In a case report, a patient previously stabilized on warfarin developed an elevated international normalized ratio (INR) of 5.1 after taking maitake mushroom (Grifron-Pro Maitake D-Fraction) 1 drop/kg daily in three divided doses for one week. The elevated INR resolved after holding warfarin for two days, then reducing the dose by 11%. It is thought that the beta-glucan constituent of maitake mushroom might cause warfarin dissociation from proteins, resulting in increased free warfarin levels and increased warfarin effects.

Likelihood Possible Evidence D
Grifola frondosa full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Cellular Essentials NK-5, from the product label.

Swanson Condition Specific Formulas

See all Swanson Condition Specific Formulas products
Name
Swanson Health Products
Street Address
PO BOX 2803
City
Fargo
State
ND
ZipCode
58108
Phone Number
1-800-437-4148
Web Address
www.swansonvitamins.com
Pharmacist Counseling Corner

Cellular Essentials NK-5 by Swanson Condition Specific Formulas: Common Questions

Does Cellular Essentials NK-5 by Swanson Condition Specific Formulas interact with any medications?
Yes. Based on its ingredients, Cellular Essentials NK-5 has a known interaction with 260 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Cellular Essentials NK-5 contains 2 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.

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

Not sure if Cellular Essentials NK-5 is safe with your meds?

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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.

Cellular Essentials NK-5 label
Go deeper

The Full Monographs Behind Cellular Essentials NK-5’s Ingredients

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

Herb & supplement monograph

Maitake Mushroom

Interacts with 260 drugs

Maitake is an edible mushroom long used as food and in traditional Japanese medicine, and it is being studied for possible immune, blood sugar, and blood pressure effects. The human evidence...

Read the full Maitake Mushroom monograph →
Sources

Sources & How We Checked

Cellular Essentials NK-5'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 8 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.

Maitake Mushroom 8 references
  1. Kabir Y, Kimura S. Dietary mushrooms reduce blood pressure in spontaneously hypertensive rats (SHR). J Nutr Sci Vitaminol (Tokyo) 1989;35:91-4. PubMed
  2. Kabir Y, Yamaguchi M, Kimura S. Effect of shiitake (Lentinus edodes) and maitake (Grifola frondosa) mushrooms on blood pressure and plasma lipids of spontaneously hypertensive rats. J Nutr Sci Vitaminol (Tokyo) 1987;33:341-6. PubMed
  3. Konno S, Tortorelis DG, Fullerton SA, et al. A possible hypoglycaemic effect of maitake mushroom on Type 2 diabetic patients. Diabet Med 2001;18:1010. PubMed
  4. Chen JT, Tominaga K, Sato Y, et al. Maitake mushroom (Grifola frondosa) extract induces ovulation in patients with polycystic ovary syndrome: a possible monotherapy and a combination therapy after failure with first-line clomiphene citrate. J Altern Compl
  5. Hanselin MR, Vande Griend JP, Linnebur SA. INR elevation with maitake extract in combination with warfarin. Ann Pharmacother 2010;44:223-4. PubMed
  6. Talpur, N. A., Echard, B. W., Fan, A. Y., Jaffari, O., Bagchi, D., and Preuss, H. G. Antihypertensive and metabolic effects of whole Maitake mushroom powder and its fractions in two rat strains. Mol.Cell Biochem. 2002;237(1-2):129-136. PubMed
  7. Deng, G., Lin, H., Seidman, A., Fornier, M., D'Andrea, G., Wesa, K., Yeung, S., Cunningham-Rundles, S., Vickers, A. J., and Cassileth, B. A phase I/II trial of a polysaccharide extract from Grifola frondosa (Maitake mushroom) in breast cancer patients: i
  8. Wesa KM, Cunningham-Rundles S, Klimek VM, et al. Maitake mushroom extract in myelodysplastic syndromes (MDS): a phase II study. Cancer Immunol Immunother 2015;64(2):237-47. PubMed

See these in context on the Maitake 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

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