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Dietary supplement

Vita-Kids Immune Great-Tasting Natural Grape Flavor Ingredients & Drug Interactions

by Douglas Laboratories

Vita-Kids Immune Great-Tasting Natural Grape Flavor label
See full label image
Liquid Category: Botanical With Nutrients
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Vita-Kids Immune Great-Tasting Natural Grape Flavor 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

Vita-Kids Immune Great-Tasting Natural Grape Flavor is a dietary supplement by Douglas Laboratories with 5 active ingredients. Its ingredients are commonly taken for eye and vision health, skin health and acne, immune support.Based on those ingredients, 1,044 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Elderberry Fruit Extract, Vitamin A, Honeysuckle powder. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Vita-Kids Immune Great-Tasting Natural Grape Flavor by Douglas Laboratories

Ask about any prescription or over-the-counter medication and we check it for interactions with Vita-Kids Immune Great-Tasting Natural Grape Flavor by Douglas Laboratories — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Vita-Kids Immune Great-Tasting Natural Grape Flavor by Douglas Laboratories

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 11, 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 5 of its 5 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Vita-Kids Immune contains 5 active ingredients. Vitamin A supports immune function and is effective for preventing vitamin A deficiency; it's also been studied for skin health and other uses.

Zinc is essential for immune response and is effective for zinc deficiency and Wilson disease. Blueberry powder contributes antioxidants, though the evidence for its specific health claims is not yet established.

Honeysuckle powder and elderberry fruit extract are traditional herbal ingredients whose effectiveness for immune support has not been reliably demonstrated in our data. The product also contains inactive ingredients including purified water, glycerin, stevia, xanthan gum, citric acid, potassium sorbate, and natural grape flavor, which provide sweetness, texture, and preservation.

Does it work?

Moderate 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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: immune support for children.
  • We looked for evidence on: Common cold, Child growth, Child development, Immune function, Cold and flu symptoms, Antioxidant support.
  • The strongest evidence on file: Zinc is rated "Possibly Effective" for Child growth (Natural Medicines).
  • Also on file: American Elder is rated "Insufficient Reliable Evidence To Rate" for Common cold.
  • Also on file: Vitamin A is rated "Insufficient Reliable Evidence To Rate" for Child development.

Vitamin A is effective for preventing vitamin A deficiency and has possibly effective evidence for oral leukoplakia, aging skin, measles, ulcerative colitis, and bronchopulmonary dysplasia. Zinc is effective for zinc deficiency and likely effective for Wilson disease, and possibly effective for acne, acrodermatitis enteropathica, age-related macular degeneration, and diabetes.

For blueberry powder, honeysuckle powder, and elderberry fruit extract, the evidence to establish their effectiveness for immune support or other health claims has not been established in our data—ratings are insufficient or absent.

The evidence, ingredient by ingredient Vitamin A Zinc Blueberry Honeysuckle American Elder

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 5 of the 5 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 4 of 5.
  • General safety write-ups exist for 5 of 5.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

At recommended amounts, vitamin A and zinc are generally well tolerated. However, high doses of vitamin A can build up in your body and become toxic; vitamin A at high doses (especially in the form of retinol) may cause birth defects and should be avoided in pregnancy.

Zinc is generally safe at the recommended daily limit of 40 mg; high doses can raise the risk of copper deficiency over time. Blueberry powder is likely safe in pregnancy and is generally well tolerated, though freeze-dried blueberries can cause constipation, diarrhea, nausea, or vomiting in some people.

Honeysuckle powder should be avoided in pregnancy and breastfeeding due to insufficient safety data; it has caused allergic skin reactions in rare cases. Elderberry fruit extract should be avoided in pregnancy and breastfeeding; cooked ripe berries are generally better tolerated than raw or unripe parts, which can be toxic.

Side effects, ingredient by ingredient Vitamin A Zinc Blueberry Honeysuckle American Elder

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?
  • 5 of the 5 matched ingredients can interact with medications — Honeysuckle, American Elder, Vitamin A, Zinc, Blueberry.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications; lithium.
  • For scale: 1,045 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.

Check these medication types before giving this product to your child: retinoid drugs (Major severity), blood thinners like warfarin, tetracycline and quinolone antibiotics, cephalexin, penicillamine, HIV medications including ritonavir and integrase inhibitors, lithium, and the cancer drug cisplatin. Additionally, any drugs that are processed by CYP3A4 enzymes in the liver may be affected by the elderberry in this formula.

Use the interaction checker on this page with your child's specific medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Major medication interactions have been identified, and safety information is well characterized.

This product may be useful if you're looking to support your child's immune system with vitamin A and zinc, especially if your child has a documented deficiency. It's important to check all of your child's current medications against the interaction tool before starting, since vitamin A and zinc have multiple documented interactions with antibiotics, blood thinners, and other drugs.

If your child is pregnant, breastfeeding, or taking any prescriptions, talk with your pharmacist or doctor before using this product.

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

Assessment coverage: 5 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Sep 22, 2022.

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 Vita-Kids Immune Great-Tasting Natural Grape Flavor, straight from the product label.

Brand Douglas Laboratories
Barcode (UPC) 310539031209
Net contents 4.1 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Sep 22, 2022
DSLD ID 274106
Product type Botanical With Nutrients
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Children 4 or More Years of Age, Gluten Free, Children more than 1 but less than 4
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 Vita-Kids Immune Great-Tasting Natural Grape Flavor by Douglas Laboratories, 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:
5 mL
Maximum serving Sizes:
5 mL
Servings per container
24
UPC/BARCODE
310539031209
IngredientAmount% DV
Vitamin A750 mcg250%, 83%
Zinc3 mg27%, 100%
Blueberry powder150 mg--
Honeysuckle powder30 mg--
Elderberry Fruit Extract100 mg--

Other ingredients: purified Water, natural Glycerin, Stevia, Xanthan Gum, Citric Acid, Potassium Sorbate, natural Grape flavor

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 Usage: As a dietary supplement, children age 1+ take 1 teaspoon daily with a meal or as directed by your health professional.

Precautions

Warning: If you are pregnant, nursing, have any health condition or taking any medication, particularly immunosuppressants, consult your health professional before using this product.

Tamper resistant package, do not use if outer seal is missing.

Keep out of the reach of children.

Use only if safety seal is intact.

Storage

For optimal storage conditions, refrigerate after opening.

Store in a cool, dry place.

Formulation

Gluten-free, Non-GMO

Support for a healthy immune system

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.

General Statements

Scan to learn about our manufacturing excellence Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity.

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

Vita-Kids Immune Great-Tasting Natural Grape Flavor by Douglas Laboratories label

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

Vita-Kids Immune Great-Tasting Natural Grape Flavor 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 Vita-Kids Immune Great-Tasting Natural Grape Flavor by Douglas Laboratories

These are the 5 active ingredients this product is made of. Select any to open its full monograph.

Serving size5 mL Dosage formLiquid Servings per container24 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.

Vitamin A

Interacts with
387 drugs
750 mcg per serving Form: Beta-Carotene

Vitamin A is an essential nutrient important for vision, skin, immune function, and growth. Most people get enough from a balanced diet, and supplemen...

Vitamin A monograph & interactions

Zinc

Interacts with
67 drugs
3 mg per serving Form: Zinc Gluconate

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

Blueberry powder

Interacts with
88 drugs
150 mg per serving

Blueberries are a nutritious fruit rich in antioxidants called anthocyanins, and eating them as part of a balanced diet is healthy and safe for most p...

Blueberry powder monograph & interactions

Honeysuckle powder

Interacts with
122 drugs
30 mg per serving

Honeysuckle, especially Japanese honeysuckle flower (Lonicera japonica), is a staple of traditional Chinese medicine used mainly for colds, sore throa...

Honeysuckle powder monograph & interactions

Elderberry Fruit Extract

Interacts with
644 drugs
100 mg per serving Form: Anthocyanins, Sambucus nigra Fruit Extract

American elder is a North American plant whose cooked, ripe berries and flowers are used mainly for colds, flu, and general immune support. The scienc...

Elderberry Fruit Extract monograph & interactions

Other (inactive) ingredients: Purified Water, Natural Glycerin, Stevia, Xanthan Gum, Citric Acid, Potassium Sorbate, Natural Grape flavor. These complete the product’s ingredient list but are not active constituents.

Interaction report

Vita-Kids Immune Great-Tasting Natural Grape Flavor by Douglas Laboratories Drug Interactions

Want to check YOUR meds against Vita-Kids Immune Great-Tasting Natural Grape Flavor?

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
1,044Drugs
9 Major 961 Moderate 74 Minor

Ingredients driving the most interactions

Elderberry Fruit Extract 644
Vitamin A 387
Honeysuckle powder 122
Blueberry powder 88
Zinc 67

Individual Drug Interactions

The ingredients in Vita-Kids Immune Great-Tasting Natural Grape Flavor interact with 1,044 drugs. Click any drug to see the details.

5 of the 5 ingredients in Vita-Kids Immune Great-Tasting Natural Grape Flavor interact with drugs. Each result below shows which ingredient is responsible. Elderberry Fruit Extract Vitamin A Honeysuckle powder Blueberry powder Zinc

Each ingredient & the kinds of drugs it affects

For each ingredient in Vita-Kids Immune Great-Tasting Natural Grape Flavor 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.

Elderberry Fruit Extract2 drug types · 644 drugs

Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, taking American elder might increase levels of CYP3A4 substrates.
In vitro research shows that American elder inhibits CYP3A4 enzymes.

Likelihood Possible Evidence D
Lithium

Theoretically, American elder might reduce excretion and increase levels of lithium.
American elder is thought to have diuretic properties. Theoretically, American elder might reduce the excretion of lithium, increasing serum levels.

Likelihood Probable Evidence D
Elderberry Fruit Extract full monograph & interactions

Vitamin A4 drug types · 387 drugs

Retinoids

Concomitant use of retinoids with vitamin A supplements might produce supratherapeutic vitamin A levels.
Retinoids, which are vitamin A derivatives, could have additive toxic effects when taken with vitamin A supplements.

Likelihood Probable Evidence D
Hepatotoxic Drugs

Theoretically, taking high doses of vitamin A in combination with other potentially hepatotoxic drugs might increase the risk of liver disease.
The tolerable upper intake level (UL) is the highest level of intake that is likely to pose no risk of adverse effects. Doses of vitamin A above the UL can cause hepatotoxicity, ranging from elevated liver enzymes to liver failure.

Likelihood Possible Evidence C
Tetracycline Antibiotics

Theoretically, taking tetracycline antibiotics with high doses of vitamin A can increase the risk of pseudotumor cerebri.
Benign intracranial hypertension (pseudotumor cerebri) can occur with tetracyclines and with acute or chronic vitamin A toxicity. Case reports suggest that taking tetracyclines and vitamin A concurrently can increase the risk of this condition. Avoid high doses of vitamin A in people taking tetracyclines chronically.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, high doses of vitamin A could increase the risk of bleeding with warfarin.
Vitamin A toxicity is associated with hemorrhage and hypoprothrombinemia, possibly due to vitamin K antagonism. Advise patients taking warfarin to avoid doses of vitamin A above the tolerable upper intake level of 10,000 IU/day for adults.

Likelihood Possible Evidence D
Vitamin A full monograph & interactions

Honeysuckle powder1 drug type · 122 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, honeysuckle might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro research shows that polyphenols extracted from honeysuckle can inhibit platelet aggregation.

Likelihood Possible Evidence D
Honeysuckle powder full monograph & interactions

Blueberry powder3 drug types · 88 drugs

Antidiabetes Drugs

Theoretically, blueberries or blueberry leaf extracts might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal and in vitro research suggests that blueberry and/or blueberry leaf extracts can lower blood glucose levels.

Likelihood Unlikely Evidence D
Buspirone (Buspar)

Theoretically, blueberry juice might increase blood levels of buspirone.
In vitro research shows that blueberry juice can inhibit the metabolism of buspirone, possibly by inhibiting cytochrome P450 3A (CYP3A) enzymes. However, pharmacokinetic research in humans shows that drinking 300 mL of blueberry juice 30 minutes before taking buspirone hydrochloride 10 mg does not significantly affect the concentration or clearance of buspirone.

Likelihood Unlikely Evidence B
Flurbiprofen (Ansaid, Others)

Theoretically, blueberry juice might increase blood levels of flurbiprofen.
In vitro research shows that blueberry juice can inhibit the metabolism of flurbiprofen, possibly by inhibiting cytochrome P450 2C9 (CYP2C9) enzymes. However, pharmacokinetic research in humans shows that drinking 300 mL of blueberry juice 30 minutes before taking flurbiprofen 100 mg does not significantly affect the concentration or clearance of flurbiprofen.

Likelihood Unlikely Evidence B
Blueberry powder 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 Vita-Kids Immune Great-Tasting Natural Grape Flavor, from the product label.

Douglas Laboratories

See all Douglas Laboratories products
Name
Douglas Laboratories
Street Address
600 Boyce Road
City
Pittsburgh
State
PA
ZipCode
15205
Phone Number
1.800.245.4440
Web Address
www.douglaslabs.com
Pharmacist Counseling Corner

Vita-Kids Immune Great-Tasting Natural Grape Flavor by Douglas Laboratories: Common Questions

Does Vita-Kids Immune Great-Tasting Natural Grape Flavor by Douglas Laboratories interact with any medications?
Yes. Based on its ingredients, Vita-Kids Immune Great-Tasting Natural Grape Flavor has a known interaction with 1,044 medications, including 9 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Vita-Kids Immune Great-Tasting Natural Grape Flavor contains 5 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.
Is it okay to give this to my child if they're on an antibiotic?
Not without checking first. Zinc in this product can reduce how well your child's body absorbs certain antibiotics—tetracyclines, quinolones, and cephalexin are the biggest concerns. If your child is on one of these, talk with your pharmacist about timing or whether this product is appropriate right now.
Can I give this during pregnancy or while breastfeeding?
Vitamin A at high doses may cause birth defects, so pregnancy requires care. Honeysuckle and elderberry should be avoided entirely during pregnancy and breastfeeding because there isn't enough safety data. Blueberry is likely safe in pregnancy. Talk with your doctor or pharmacist about whether this formula is right for your situation.
What side effects might my child have?
At normal doses, side effects are uncommon. Zinc may cause stomach cramps, diarrhea, nausea, or a metallic taste. Freeze-dried blueberries can cause constipation, diarrhea, nausea, or vomiting. High doses of vitamin A can cause headache, dizziness, or skin problems. If your child has unusual symptoms, stop and call your pharmacist.
Does this really work for immune health?
Vitamin A and zinc are proven to prevent deficiency and play roles in immune function. However, the blueberry, honeysuckle, and elderberry ingredients don't have enough reliable evidence yet to say whether they boost immunity—that data hasn't been established in our records.
Can I take this with my blood thinner medication?
Vitamin A, honeysuckle, and potentially other ingredients may increase bleeding risk with blood thinners like warfarin. Do not use this product without checking with your pharmacist or doctor first—they'll need to know your specific medication.
Why is the medication count so high?
The 1,024 figure represents all the individual drugs affected by the five ingredients combined—many of those are variations or different brands of the same type of medication. What matters is whether you or your child take any of those specific drugs, which is why the interaction tool is your best resource.

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.

Vita-Kids Immune Great-Tasting Natural Grape Flavor label
Go deeper

The Full Monographs Behind Vita-Kids Immune Great-Tasting Natural Grape Flavor’s Ingredients

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

Herb & supplement monograph

Vitamin A

Interacts with 387 drugs

Vitamin A is an essential nutrient important for vision, skin, immune function, and growth. Most people get enough from a balanced diet, and supplements are mainly useful for correcting a tr...

Read the full Vitamin A monograph → 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

Blueberry

Interacts with 88 drugs

Blueberries are a nutritious fruit rich in antioxidants called anthocyanins, and eating them as part of a balanced diet is healthy and safe for most people. Concentrated supplements are mark...

Read the full Blueberry monograph → Herb & supplement monograph

Honeysuckle

Interacts with 122 drugs

Honeysuckle, especially Japanese honeysuckle flower (Lonicera japonica), is a staple of traditional Chinese medicine used mainly for colds, sore throat, and inflammation. Modern human eviden...

Read the full Honeysuckle monograph → Herb & supplement monograph

American Elder

Interacts with 644 drugs

American elder is a North American plant whose cooked, ripe berries and flowers are used mainly for colds, flu, and general immune support. The science behind these uses is limited and most...

Read the full American Elder monograph →
Sources

Sources & How We Checked

Vita-Kids Immune Great-Tasting Natural Grape Flavor'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 131 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.

Vitamin A 31 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Griffiths JK. The vitamin A paradox. J Pediatr 2000;137:604-7.. PubMed
  3. Hardman JG, Limbird LL, Molinoff PB, eds. Goodman and Gillman's The Pharmacological Basis of Therapeutics, 9th ed. New York, NY: McGraw-Hill, 1996.
  4. Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
  5. FDA Talk Paper. Vitamin A and birth defects (T95-56). Food and Drug Administration, U.S. Department of Health and Human Services, Rockville, MD. October 6, 1995.
  6. Russell RM. The vitamin A spectrum: from deficiency to toxicity. Am J Clin Nutr 2000;71:878-84. PubMed
  7. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
  8. Feskanich D, Singh V, Willett WC, Colditz GA. Vitamin A intake and hip fractures among postmenopausal women. JAMA 2002;287:47-54. PubMed
  9. Melhus H, Michaelsson K, Kindmark A, et al. Excessive dietary intake of vitamin A is associated with reduced bone mineral density and increased risk for hip fracture. Ann Intern Med 1998;129:770-8. PubMed
  10. Michaelsson K, Lithell H, Vessby B, Melhus H. Serum retinol levels and the risk of fracture. N Engl J Med 2003;348:287-94.. PubMed
  11. Botterweck AA, van den Brandt PA, Goldbohm RA. Vitamins, carotenoids, dietary fiber, and the risk of gastric carcinoma: results from a prospective study after 6.3 years of follow-up. Cancer 2000;88:737-48.. DOI
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Zinc 88 references
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See these in context on the Zinc monograph →

Blueberry 7 references
  1. Cignarella A, Nastasi M, Cavalli E, Puglisi L. Novel lipid-lowering properties of Vaccinium myrtillus L. leaves, a traditional antidiabetic treatment, in several models of rat dyslipidaemia: a comparison with ciprofibrate. Thromb Res 1996;84:311-22. PubMed
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  3. Martineau, L. C., Couture, A., Spoor, D., Benhaddou-Andaloussi, A., Harris, C., Meddah, B., Leduc, C., Burt, A., Vuong, T., Mai, Le P., Prentki, M., Bennett, S. A., Arnason, J. T., and Haddad, P. S. Anti-diabetic properties of the Canadian lowbush bluebe
  4. Vuong, T., Martineau, L. C., Ramassamy, C., Matar, C., and Haddad, P. S. Fermented Canadian lowbush blueberry juice stimulates glucose uptake and AMP-activated protein kinase in insulin-sensitive cultured muscle cells and adipocytes. Can J Physiol Pharma
  5. Hanley MJ, Masse G, Harmatz JS, Cancalon PF, Dolnikowski GG, Court MH, Greenblatt DJ. Effect of blueberry juice on clearance of buspirone and flurbiprofen in human volunteers. Br J Clin Pharmacol. 2013 Apr;75(4):1041-52. PubMed
  6. Basu A, Du M, Leyva MJ, et al. Blueberries decrease cardiovascular risk factors in obese men and women with metabolic syndrome. J Nutr 2010;140(9):1582-7. PubMed
  7. Basu A, Feng D, Planinic P, Ebersole JL, Lyons TJ, Alexander JM. Dietary blueberry and soluble fiber supplementation reduces risk of gestational diabetes in women with obesity in a randomized controlled trial. J Nutr 2021;151(5):1128-38. PubMed

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Honeysuckle 3 references
  1. Chang WC, Hsu FL. Inhibition of platelet activation and endothelial cell injury by polyphenolic compounds isolated from Lonicera japonica Thunb. Prostaglandins Leukot Essent Fatty Acids 1992;45:307-12. PubMed
  2. Webster RM. Honeysuckle contact dermatitis. Cutis 1993;51:424.
  3. Zhou LF, Lu R. Compound-honeysuckle-induced drug eruption with special manifestations: A case report. World J Clin Cases 2022;10(22):8018-8024. PubMed

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American Elder 2 references
  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. PubMed

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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.

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