Major interaction on record — check this product against your medications before combining. Check your meds →
Dietary supplement

NK-Stim Ingredients & Drug Interactions

by Ortho Molecular Products

NK-Stim label
See full label image
Capsule Category: Botanical With Nutrients
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking NK-Stim 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: Major

NK-Stim is a dietary supplement by Ortho Molecular Products with 4 active ingredients. Its ingredients are commonly taken for zinc deficiency, immune support, cold symptoms.Based on those ingredients, 642 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Aloe vera leaf gel extract, Arabinogalactan Heartwood, Zinc. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against NK-Stim by Ortho Molecular Products

Ask about any prescription or over-the-counter medication and we check it for interactions with NK-Stim by Ortho Molecular Products — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of NK-Stim by Ortho Molecular Products

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 Aug 27, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 4 of its 4 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

NK-Stim contains 4 active ingredients. Zinc supports immune function and is effective for zinc deficiency and likely effective for Wilson disease, a rare copper metabolism disorder.

Aloe vera leaf gel extract, a succulent plant preparation, has possibly effective evidence for acne, diabetes, psoriasis, burns, and constipation. Arabinogalactan heartwood is a soluble fiber extracted from larch tree wood.

Olive leaf extract rounds out the formula. The capsules also contain inactive ingredients: a vegetable capsule shell, microcrystalline cellulose (a filler), and magnesium stearate (a lubricant).

Does it work?

Strong evidence
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

This product doesn't appear to be marketed for a specific use, so we graded its ingredients' overall clinical evidence instead.

Strong

Strong clinical evidence supports its ingredients for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredients' overall clinical evidence instead.
  • On file: Zinc deficiency — rated "Effective" (Zinc) (Natural Medicines).
  • On file: Wilson disease — rated "Likely Effective" (Zinc) (Natural Medicines).
  • On file: Acne — rated "Possibly Effective" (Aloe) (Natural Medicines).
  • On file: Acrodermatitis enteropathica — rated "Possibly Effective" (Zinc) (Natural Medicines).
  • On file: Age-related macular degeneration (AMD) — rated "Possibly Effective" (Zinc) (Natural Medicines).

Zinc is effective for treating zinc deficiency and likely effective for Wilson disease. For acne, age-related macular degeneration, acrodermatitis enteropathica (a rare genetic skin condition), and diabetes support, zinc is rated possibly effective — the research suggests benefit but isn't conclusive.

Aloe vera is possibly effective for acne, diabetes, psoriasis, burns, and constipation. Arabinogalactan and olive leaf extract lack established effectiveness evidence in the data we hold — the research for common cold, high cholesterol (hyperlipidemia), osteoporosis, indigestion, shingles, influenza, and osteoarthritis is either insufficient or not yet rated.

The evidence, ingredient by ingredient Zinc Aloe Larch Arabinogalactan Olive

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 4 of the 4 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 4 of 4.
  • General safety write-ups exist for 4 of 4.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Zinc is generally well tolerated in recommended amounts — the upper safe limit for adults is 40 mg daily. Higher doses can cause nausea, vomiting, abdominal cramps, diarrhea, and a metallic taste.

Long-term high-dose zinc raises concern for copper deficiency, which can lead to anemia and low white blood cell count. Aloe vera gel is generally well tolerated topically, but oral aloe latex carries greater risk and is not recommended in pregnancy or while breastfeeding because it can stimulate the uterus and act as a strong laxative.

Oral aloe may cause abdominal pain, cramps, and diarrhea; long-term misuse risks serious potassium loss and muscle weakness. Arabinogalactan and olive leaf extract are generally well tolerated but have limited long-term safety data.

Arabinogalactan can cause bloating and gas. Olive leaf extract may cause headache or stomach discomfort; one trial participant reported acne.

Pregnant or breastfeeding women should check with their doctor or pharmacist before using this product, as pregnancy and lactation data for some ingredients are not fully established.

Side effects, ingredient by ingredient Zinc Aloe Larch Arabinogalactan Olive

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 3 of the 4 matched ingredients can interact with medications — Aloe, Larch Arabinogalactan, Zinc.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications; heart-rhythm medications.
  • For scale: 642 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 NK-Stim, double-check with your doctor or pharmacist if you take any of these: heart medications like digoxin (Lanoxin), blood thinners or antiplatelet drugs, antibiotics (especially quinolones, tetracyclines, or cephalexin), diabetes medications, diuretics or laxatives, HIV drugs including ritonavir or integrase inhibitors, warfarin, cancer drugs like cisplatin, penicillamine, or immunosuppressants after transplant. Moderate and major interactions are documented; timing or temporary spacing of doses may be needed.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Major medication interactions have been identified, and safety information is well characterized.

NK-Stim may be worth considering if you're low in zinc or want general immune support, but it requires careful medication timing — especially if you take antibiotics, heart drugs like digoxin, blood thinners, diabetes medicines, or HIV antiretrovirals. Talk with your doctor or pharmacist before starting, particularly if you're pregnant, breastfeeding, or have a transplant or autoimmune condition.

Check your exact medications against the interaction tool on this page.

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

Assessment coverage: 4 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Mar 23, 2018.

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 NK-Stim, straight from the product label.

Brand Ortho Molecular Products
Barcode (UPC) 615033005313
Net contents 60 Capsule(s)
Market status On market
Date entered into DSLD Mar 23, 2018
DSLD ID 174458
Product type Botanical With Nutrients
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) 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 NK-Stim by Ortho Molecular Products, 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:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
30
UPC/BARCODE
615033005313
IngredientAmount% DV
Zinc10 mg67%
Aloe vera leaf gel extract130 mg--
Arabinogalactan Heartwood610 mg--
Olive leaf extract400 mg--

Other ingredients: natural Vegetable Capsules, Microcrystalline Cellulose, Magnesium Stearate

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.
Suggested/Recommended/Usage/Directions

Suggested Use: 2 capsules two times per day or as recommended by your health care professional.

Formulation

Formulated To Be Free Of Allergens Derived From: Gluten, yeast, artificial colors and flavors.

Precautions

If you are pregnant or nursing, consult your physician before taking this product.

As with all dietary supplements, some individuals may not tolerate or may be allergic to the ingredients used. Please read the ingredient panel carefully prior to ingestion. Cease taking this product and consult your physician if you have negative reactions upon ingestion.

Keep out of reach of children.

This product was sealed for your protection. Do not use if outer logoed neck seal or inner-seal is missing or damaged.

Do not accept if label shows signs of tampering

Storage

Keep container tightly closed. Store at room temperature.

FDA Disclaimer Statement

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

Seals/Symbols

Vcaps Albion Human Nutrition

General

Product #531060 Label ID L-OMP100-531060-I V1

General Statements

Learn more

Immune health

Professional Strength: Not for sale through Amazon.com

Brand IP Statement(s)

VitaSecure

Because efficacy matters

TRAACS is a registered trademark of Albion Laboratories, Inc.

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

NK-Stim by Ortho Molecular Products label

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

NK-Stim 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 NK-Stim by Ortho Molecular Products

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 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.

Zinc

Interacts with
67 drugs
10 mg per serving Form: TRAACS Zinc Bisglycinate Chelate

Zinc is an essential mineral that your body needs for immune function, wound healing, taste, and smell. Most people get enough from food, but suppleme...

Zinc monograph & interactions

Aloe vera leaf gel extract

Interacts with
461 drugs
130 mg per serving

Aloe vera gel is widely used on the skin for minor burns and irritation, and some research suggests it may help. Aloe latex (the yellow part) is a str...

Aloe vera leaf gel extract monograph & interactions

Arabinogalactan Heartwood

Interacts with
121 drugs
610 mg per serving Form: Larch Tree

Larch arabinogalactan is a soluble fiber from larch trees that is mainly used as a prebiotic and for immune support. Early research is interesting but...

Arabinogalactan Heartwood monograph & interactions

Olive leaf extract

No known
interactions
400 mg per serving Form: Oleuropein

Olive comes from the same tree that gives us olives and olive oil, and its leaf and fruit contain antioxidant compounds like oleuropein and hydroxytyr...

Olive leaf extract monograph & interactions

Other (inactive) ingredients: Natural Vegetable Capsules, Microcrystalline Cellulose, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.

Interaction report

NK-Stim by Ortho Molecular Products Drug Interactions

Want to check YOUR meds against NK-Stim?

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
642Drugs
1 Major 484 Moderate 157 Minor

Ingredients driving the most interactions

Aloe vera leaf gel extract 461
Arabinogalactan Heartwood 121
Zinc 67

Individual Drug Interactions

The ingredients in NK-Stim interact with 642 drugs. Click any drug to see the details.

3 of the 4 ingredients in NK-Stim interact with drugs. Each result below shows which ingredient is responsible. Aloe vera leaf gel extract Arabinogalactan Heartwood Zinc

Each ingredient & the kinds of drugs it affects

For each ingredient in NK-Stim with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Aloe vera leaf gel extract7 drug types · 461 drugs

Digoxin (Lanoxin)

Theoretically, aloe latex might increase the risk of adverse effects when taken with cardiac glycosides.
Overuse of aloe latex can increase the risk of adverse effects from cardiac glycoside drugs, such as digoxin, due to potassium depletion. Overuse of aloe, along with cardiac glycoside drugs, can increase the risk of toxicity.

Likelihood Probable Evidence D
Anticoagulant/Antiplatelet Drugs

Theoretically, aloe gel might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro research shows that aloe gel can inhibit platelet aggregation. This inhibition was greater than that seen with celecoxib, but less than that seen with aspirin.

Likelihood Possible Evidence D
Antidiabetes Drugs

Aloe might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Preliminary clinical research suggests aloe gel might lower blood glucose levels and have additive effects when used with antidiabetes drugs. Monitor blood glucose levels closely.

Likelihood Possible Evidence D
Diuretic Drugs

Theoretically, aloe latex might increase the risk of hypokalemia when taken with diuretic drugs.
Overuse of aloe latex might compound diuretic-induced potassium loss, increasing the risk of hypokalemia.

Likelihood Possible Evidence D
Stimulant Laxatives

Theoretically, aloe latex might increase the risk for fluid and electrolyte loss when taken with stimulant laxatives.
Due to cathartic laxative effects of aloe latex, concomitant use with other stimulant laxatives might compound fluid and electrolyte loss.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, aloe latex might increase the risk of bleeding when taken with warfarin.
Aloe latex has stimulant laxative effects. In some people aloe latex can cause diarrhea. Diarrhea can increase the effects of warfarin, increase international normalized ratio (INR), and increase the risk of bleeding. Advise patients who take warfarin not to take excessive amounts of aloe vera.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, aloe might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that aloe extract induces CYP1A2 enzymes.

Likelihood Possible Evidence D
Aloe vera leaf gel extract full monograph & interactions

Arabinogalactan Heartwood1 drug type · 121 drugs

Immunosuppressants

Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects. Immunosuppressant drugs include azathioprine (Imuran), basiliximab (Simulect), cyclosporine (Neoral, Sandimmune), daclizumab (Zenapax), muromonab-CD3 (OKT3, Orthoclone OKT3), mycophenolate (CellCept), tacrolimus (FK506, Prograf), sirolimus (Rapamune), prednisone (Deltasone, Orasone), corticosteroids (glucocorticoids), and other drugs.

Likelihood Possible Evidence D
Arabinogalactan Heartwood full monograph & interactions

Zinc10 drug types · 67 drugs

Bictegravir/Emtricitabine/Tenofovir Alafenamide (Biktarvy)

Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Advise patients that bictegravir/emtricitabine/tenofovir alafenamide should be taken at least 2 hours before or 6 hours after zinc containing products.

Likelihood Probable Evidence D
Cephalexin (Keflex)

Zinc might decrease cephalexin levels by chelating with cephalexin in the gut and preventing its absorption.
A pharmacokinetic study shows that zinc sulfate 250 mg taken concomitantly with cephalexin 500 mg decreases peak levels of cephalexin by 31% and reduces the exposure to cephalexin by 27%. Also, taking zinc sulfate 3 hours before cephalexin decreases peak levels of cephalexin by 11% and reduces the exposure to cephalexin by 18%. By decreasing cephalexin levels, zinc might increase the risk of treatment failure. This effect does not occur when zinc is taken 3 hours after the cephalexin dose. To avoid an interaction, advise patients take zinc sulfate 3 hours after taking cephalexin.

Likelihood Probable Evidence B
Cisplatin (Platinol-Aq)

Theoretically, zinc might interfere with the therapeutic effects of cisplatin.
Animal research suggests that zinc stimulates tumor cell production of the protein metallothionein, which binds and inactivates cisplatin. It is not known whether zinc supplements or high dietary zinc intake can cause clinically significant interference with cisplatin therapy. Cisplatin might also increase zinc excretion.

Likelihood Possible Evidence D
Integrase Inhibitors

Theoretically, taking zinc along with integrase inhibitors might decrease the levels and clinical effects of these drugs.
Zinc is a divalent cation. Pharmacokinetic studies have shown that other divalent cations such as calcium and iron can decrease blood levels of the integrase inhibitor dolutegravir through chelation.

Likelihood Possible Evidence D
Penicillamine (Cuprimine, Depen)

Zinc might reduce the levels and clinical effects of penicillamine.
By forming an insoluble complex with penicillamine, zinc interferes with penicillamine absorption and activity. Zinc supplements reduce the efficacy of low-dose penicillamine (0.5-1 gram/day), but do not seem to affect higher doses (1-2.75 gram/day), provided dosing times are separated. Advise patients to take zinc and penicillamine at least 2 hours apart.

Likelihood Probable Evidence B
Quinolone Antibiotics

Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Quinolones form complexes with zinc in the gastrointestinal tract, reducing absorption of both the quinolone and zinc if taken at the same time. Advise patients to take these drugs at least 2 hours before, or 4-6 hours after, zinc supplements.

Likelihood Probable Evidence B
Ritonavir (Norvir)

Zinc modestly reduces levels of ritonavir.
Clinical research shows that zinc might reduce serum ritonavir levels by chelating with ritonavir in the gut and preventing its absorption. In patients with HIV, ritonavir is taken with atazanavir to prevent the metabolism and increase the effects of atazanavir. A pharmacokinetic study shows that, in patients being treated with atazanavir/ritonavir, co-administration of zinc sulfate (Solvazinc tablets) 125 mg as a single dose or as multiple daily doses for 2 weeks reduces plasma levels of ritonavir by about 16%. However, atazanavir levels still remains high enough to prevent HIV virus replication. Therefore, the decrease in ritonavir levels is not likely to be clinically significant.

Likelihood Probable Evidence B
Tetracycline Antibiotics

Zinc might reduce levels of tetracycline antibiotics.
Tetracyclines form complexes with zinc in the gastrointestinal tract, which can reduce absorption of both the tetracycline and zinc when taken at the same time. Taking zinc sulfate 200 mg with tetracycline reduces absorption of the antibiotic by 30% to 40%. Demeclocycline and minocycline cause a similar interaction. However, doxycycline does not seem to interact significantly with zinc. Advise patients to take tetracyclines at least 2 hours before, or 4-6 hours after, zinc supplements to avoid any interactions.

Likelihood Probable Evidence B
Amiloride (Midamor)

Amiloride can modestly reduce zinc excretion and increase zinc levels.
Clinical research shows that amiloride can reduce urinary zinc excretion, especially at doses of 10 mg per day or more. This zinc-sparing effect can help to counteract zinc losses caused by thiazide diuretics, but it is unlikely to cause zinc toxicity at usual amiloride doses. The other potassium-sparing diuretics, spironolactone (Aldactone) and triamterene (Dyrenium), do not seem to have a zinc-sparing effect.

Likelihood Probable Evidence B
Atazanavir (Reyataz)

Zinc modestly reduces levels of atazanavir, although this effect does not seem to be clinically significant.
Clinical research shows that zinc might decrease serum atazanavir levels by chelating with atazanavir in the gut and preventing its absorption. Although a single dose of zinc sulfate (Solvazinc tablets) 125 mg orally does not affect atazanavir concentrations in patients being treated with atazanavir/ritonavir, co-administration of zinc sulfate 125 mg daily for 2 weeks reduces plasma levels of atazanavir by about 22% in these patients. However, despite this decrease, atazanavir levels still remain at high enough concentrations for the prevention of HIV virus replication.

Likelihood Probable Evidence B
Zinc full monograph & interactions
The maker

Brand information

Manufacturer and brand details for NK-Stim, from the product label.

Ortho Molecular Products

See all Ortho Molecular Products products
Name
Ortho Molecular Products, Inc.
Street Address
1991 Duncan Place
City
Woodstock
State
IL
ZipCode
60098
Web Address
OrthoMolecularProducts.com
Pharmacist Counseling Corner

NK-Stim by Ortho Molecular Products: Common Questions

Does NK-Stim by Ortho Molecular Products interact with any medications?
Yes. Based on its ingredients, NK-Stim has a known interaction with 642 medications, including 1 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
NK-Stim contains 4 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.
Can I take NK-Stim if I'm on an antibiotic?
It depends on which antibiotic. Zinc can reduce absorption of quinolones, tetracyclines, and cephalexin (Keflex). If you take one of these, your doctor or pharmacist can advise you to space them at least 2–6 hours apart from NK-Stim, depending on the antibiotic. Check your specific medication before starting.
Is NK-Stim safe if I take digoxin or another heart medication?
Aloe vera in this product can increase the risk of toxicity with digoxin (Lanoxin) by depleting potassium. If you take a heart medication, talk with your doctor or pharmacist before using NK-Stim. They can help you decide whether it's right for you or suggest alternatives.
Can I use NK-Stim while pregnant or breastfeeding?
Pregnancy and breastfeeding safety data for some ingredients in this product are limited or not fully established. Aloe vera is rated possibly unsafe during both pregnancy and breastfeeding because it can act as a strong laxative. Talk with your doctor or pharmacist before using NK-Stim if you are pregnant, trying to become pregnant, or breastfeeding.
What are the most common side effects of NK-Stim?
Zinc at high doses can cause nausea, vomiting, abdominal cramps, diarrhea, and a metallic taste. Aloe can cause abdominal pain and cramps. Arabinogalactan may cause bloating and gas. Olive leaf extract may trigger headache or stomach discomfort. Most of these are dose-related and often improve if you reduce the amount or take it with food.
Does NK-Stim actually work for acne or diabetes?
Zinc and aloe vera are both rated possibly effective for acne. For diabetes, zinc and aloe are possibly effective — meaning research suggests they may help, but the evidence isn't conclusive. Results vary from person to person, and neither is a substitute for prescribed diabetes medication or other medical treatment.
What is arabinogalactan and why is it in this product?
Arabinogalactan is a soluble fiber from larch tree heartwood that's generally well tolerated. The evidence for what it does — like immune support or cholesterol control — is insufficient in the data we hold, so we can't make a claim about its role in NK-Stim. If you want to know the maker's rationale, check the product label or contact the brand.

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

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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.

NK-Stim label
Go deeper

The Full Monographs Behind NK-Stim’s Ingredients

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

Herb & supplement monograph

Zinc

Interacts with 67 drugs

Zinc is an essential mineral that your body needs for immune function, wound healing, taste, and smell. Most people get enough from food, but supplements can help correct or prevent a defici...

Read the full Zinc monograph → Herb & supplement monograph

Aloe

Interacts with 461 drugs

Aloe vera gel is widely used on the skin for minor burns and irritation, and some research suggests it may help. Aloe latex (the yellow part) is a strong laxative that can cause cramping and...

Read the full Aloe monograph → Herb & supplement monograph

Larch Arabinogalactan

Interacts with 121 drugs

Larch arabinogalactan is a soluble fiber from larch trees that is mainly used as a prebiotic and for immune support. Early research is interesting but limited, and most claims are not yet fi...

Read the full Larch Arabinogalactan monograph → Herb & supplement monograph

Olive

Olive comes from the same tree that gives us olives and olive oil, and its leaf and fruit contain antioxidant compounds like oleuropein and hydroxytyrosol. Olive oil as part of a Mediterrane...

Read the full Olive monograph →
Sources

Sources & How We Checked

NK-Stim'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 139 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.

Zinc 88 references
  1. Barceloux DG. Zinc. J Toxicol Clin Toxicol 1999;37:279-92.
  2. Eby GA, Davis DR, Halcomb WW. Reduction in duration of common colds by zinc gluconate lozenges in a double-blind study. Antimicrob Agents Chemother 1984;25:20-4. DOI
  3. Smith DS, Helzner EC, Nuttall CE Jr, et al. Failure of zinc gluconate in treatment of acute upper respiratory tract infections. Antimicrob Agents Chemother 1989;33:646-8. PubMed
  4. Blondeau JM. Expanded activity and utility of the new fluoroquinolones: a review. Clin Ther 1999;21:3-40. PubMed
  5. Reyes AJ, Olhaberry JV, Leary WP, et al. Urinary zinc excretion, diuretics, zinc deficiency and some side-effects of diuretics. S Afr Med J 1983;64:936-41.
  6. Kugelmas M. Preliminary observation: oral zinc sulfate replacement is effective in treating muscle cramps in cirrhotic patients. J Am Coll Nutr 2000;19:13-5. PubMed
  7. Hebel SK, ed. Drug Facts and Comparisons. 52nd ed. St. Louis: Facts and Comparisons, 1998.
  8. Chan S, Gerson B, Subramaniam S. The role of copper, molybdenum, selenium, and zinc in nutrition and health. Clin Lab Med 1998;18:673-85. DOI
  9. Brewer GJ, Yuzbasiyan-Gurkan V, Johnson V, et al. Treatment of Wilson's disease with zinc: XI. Interaction with other anticopper agents. J Am Coll Nutr 1993;12:26-30. PubMed
  10. Fosmire GJ. Zinc toxicity. Am J Clin Nutr 1990;51:225-7.
  11. Lomaestro BM, Bailie GR. Absorption interactions with fluoroquinolones. 1995 update. Drug Saf 1995;12:314-33. PubMed
  12. Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
  13. Seelig MS. Auto-immune complications of D-penicillamine - A possible result of zinc and magnesium depletion and of pyridoxine inactivation. J Am Coll Nutr 1982;1:207-14. PubMed
  14. Neuvonen PJ. Interactions with the absorption of tetracyclines. Drugs 1976;11:45-54.. PubMed
  15. Hirt M, Nobel S, Barron E. Zinc nasal gel for the treatment of common cold symptoms: A double-blind, placebo-controlled trial. Ear Nose Throat J 2000;79:778-82.. DOI
  16. Simkin PA. Oral zinc sulphate in rheumatoid arthritis. Lancet 1976;2:539-42. PubMed
  17. Wray D. A double-blind trial of systemic zinc sulfate in recurrent aphthous stomatitis. Oral Surg Oral Med Oral Pathol 1982;53:469-72. PubMed
  18. Douglas RM, Miles HB, Moore BW, et al. Failure of effervescent zinc acetate lozenges to alter the course of upper respiratory tract infections in Australian adults. Antimicrob Agents Chemother 1987;31:1263-5. PubMed
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  20. Ewing CI, Gibbs AC, Ashcroft C, David TJ. Failure of oral zinc supplementation in atopic eczema. Eur J Clin Nutr 1991;45:507-10.
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Aloe 41 references
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Larch Arabinogalactan 8 references
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Olive 2 references
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