Interactions on record — worth a quick check against your medications. Based on 3 of 4 ingredients. Check your meds →
Dietary supplement

Immune Tonic Berry Ingredients & Drug Interactions

by Vitanica Tasty Tonics

Immune Tonic Berry label
See full label image
Liquid Category: Botanical
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 Immune Tonic Berry 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

Immune Tonic Berry is a dietary supplement by Vitanica Tasty Tonics with 4 active ingredients. Its ingredients are commonly taken for common cold, flu and respiratory infections, immune support.Based on those ingredients, 1,037 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Echinacea angustifolia, Stevia Leaf Extract, Black Elderberry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Immune Tonic Berry by Vitanica Tasty Tonics

Ask about any prescription or over-the-counter medication and we check it for interactions with Immune Tonic Berry by Vitanica Tasty Tonics — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Immune Tonic Berry by Vitanica Tasty Tonics

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 4 of its 4 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This liquid tonic has 4 active ingredients. Two are echinacea — Echinacea angustifolia and Echinacea purpurea — both plants traditionally used to support immune health.

The third is stevia leaf extract, a sweetener. The fourth ingredient, black elderberry, we don't have interaction data for.

The liquid also contains inactive ingredients — glycerin, water, honey, and natural berry flavors — that serve as preservatives, sweeteners, and flavoring.

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use.

Why this rating?
  • The label markets this product for: immune system support and maintenance.
  • We looked for evidence on: Coronavirus disease 2019 (COVID-19), Influenza, Upper respiratory tract infection (URTI), HIV/AIDS, Immune function, Seasonal wellness — and 1 related terms.
  • The closest evidence on file: Elderberry is rated "Insufficient Reliable Evidence To Rate" for HIV/AIDS (Natural Medicines).
  • Also on file: Elderberry is rated "Insufficient Reliable Evidence To Rate" for Upper respiratory tract infection (URTI).
  • Also on file: Echinacea is rated "Insufficient Reliable Evidence To Rate" for HIV/AIDS, Upper respiratory tract infection (URTI), Influenza, Coronavirus disease 2019 (COVID-19).

The effectiveness evidence for echinacea isn't established in our data. The product facts show insufficient reliable evidence for echinacea against anxiety, athletic performance, ADHD, burns, chronic fatigue, and migraine headache.

Similarly, stevia leaf extract shows insufficient reliable evidence for diabetes, high blood pressure, and obesity. We don't have effectiveness ratings on file for black elderberry.

The evidence, ingredient by ingredient Echinacea Stevia Elderberry

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 3 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Echinacea is generally well tolerated when taken short-term, though it may cause common side effects like abdominal pain, nausea, vomiting, diarrhea, heartburn, and rashes. Allergic reactions are possible — they're rare overall but more likely if you're sensitive to ragweed or related plants (chrysanthemums, marigolds, daisies); serious reactions including anaphylaxis have been reported in rare cases.

Hepatitis, though uncommon, has also been reported. Stevia appears well tolerated; most minor side effects (bloating, dizziness, headache, muscle pain, nausea, numbness) tend to resolve after a week.

We have no pregnancy or breastfeeding safety data on file for either echinacea species or black elderberry. Purified stevia in food amounts is considered generally recognized as safe, but whole-leaf or supplement doses of stevia aren't well studied, so caution is advised.

Side effects, ingredient by ingredient Echinacea Stevia Elderberry

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?
  • 3 of the 3 matched ingredients can interact with medications — Elderberry, Stevia, Echinacea.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications; lithium.
  • For scale: 1,038 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 you take this, double-check with your pharmacist if you're on any drugs processed by CYP3A4 enzymes (a broad list including many common medications), immunosuppressant medications, caffeine-containing drugs, etoposide (chemotherapy), blood thinners like warfarin, blood pressure medications, or diabetes drugs. The echinacea in this product carries the most serious interactions; stevia's concerns are Minor but still worth confirming.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

This product works best if you're not on immunosuppressant medications, blood thinners, diabetes drugs, or blood pressure medications — and especially if you don't take etoposide or use substantial amounts of caffeine. If you're sensitive to ragweed or related plants, avoid it.

Talk with your pharmacist before starting, and check your exact medications on this page to be sure.

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 Jan 24, 2024.

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 Immune Tonic Berry, straight from the product label.

Brand Vitanica Tasty Tonics
Barcode (UPC) 708118021787
Net contents 4 Ounce(s); 118 mL
Market status On market
Date entered into DSLD Jan 24, 2024
DSLD ID 302793
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Children 4 or More Years of Age, Vegetarian, Adult (18 - 50 Years), Women (not pregnant or lactating), 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 Immune Tonic Berry by Vitanica Tasty Tonics, 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:
2.46 mL
Maximum serving Sizes:
4.92 mL
Servings per container
24
UPC/BARCODE
708118021787
IngredientAmount% DV
Echinacea angustifolia375 mg--
Stevia Leaf Extract8.5 mg--
Echinacea purpurea375 mg--
Black Elderberry2000 mg--

Other ingredients: Glycerin, Water, Deionized, Honey, natural Berry flavors

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

Formulated by Dr. Tori Hudson, a naturopathic physician specializing in women's health.

Formulation

Immune Tonic is a daily herbal tonic promoting immune system support and maintenance for health, especially during wintry seasons.

Herbal residue inside bottle is normal.

This product contains no: preservatives, binders, artificial colorings or flavorings, lactose, salt, wheat, gluten, soybeans, milk derivatives, eggs, peanuts, tree nuts, fish or shellfish.

Immune support

Immune Tonic is suitable for vegetarians.

Suggested/Recommended/Usage/Directions

Can be used year round for continual support. Suggested use: Shake well before using. Adults: One (1) teaspoon (approx. 4 droppers) daily; children ages 2-12; 1/2 teaspoon daily (approx. 2 droppers). Dilute in 2-3 ounces of water, or to taste. May be taken undiluted, or diluted in hot water for a nice herbal tea. Temporary dose: May be taken twice per day, as needed. Also suitable for men.

Precautions

Avoid if nursing. Consult your practitioner if pregnant.

If HIV positive, avoid taking more than 2 weeks. Caution with MS, lupus, and rheumatoid arthritis.

Tamper resistant: please do not use if outer safety seal is broken or missing.

Keep in a cool, dry place out of reach of children.

Storage

Keep in a cool, dry place out of reach of children.

FDA Statement of Identity

Dietary Supplement

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.

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

See for yourself

Immune Tonic Berry by Vitanica Tasty Tonics label

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

Immune Tonic Berry 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 Immune Tonic Berry by Vitanica Tasty Tonics

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

Serving size2.46 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.

Echinacea angustifolia

Interacts with
816 drugs
375 mg per serving

Echinacea is a popular herb taken to help prevent or shorten the common cold, but study results are mixed and the overall benefit appears small at bes...

Echinacea angustifolia monograph & interactions

Stevia Leaf Extract

Interacts with
259 drugs
8.5 mg per serving Form: Stevia rebaudiana leaf extract

Stevia is a plant-based, calorie-free sweetener that is widely used as a sugar alternative and is considered safe in normal food amounts by major regu...

Stevia Leaf Extract monograph & interactions

Echinacea purpurea

Interacts with
816 drugs
375 mg per serving

Echinacea is a popular herb taken to help prevent or shorten the common cold, but study results are mixed and the overall benefit appears small at bes...

Echinacea purpurea monograph & interactions

Black Elderberry

Interacts with
121 drugs
2000 mg per serving

Elderberry is a popular herbal supplement, mainly taken to help with colds and flu. Some small studies suggest it may modestly shorten cold or flu sym...

Black Elderberry monograph & interactions

Other (inactive) ingredients: Glycerin, Water, Deionized, Honey, Natural Berry flavors. These complete the product’s ingredient list but are not active constituents.

Interaction report

Immune Tonic Berry by Vitanica Tasty Tonics Drug Interactions

Want to check YOUR meds against Immune Tonic Berry?

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
1,037Drugs
816 Moderate 221 Minor

Ingredients driving the most interactions

Echinacea angustifolia 816
Stevia Leaf Extract 259
Black Elderberry 121

Individual Drug Interactions

The ingredients in Immune Tonic Berry interact with 1,037 drugs. Click any drug to see the details.

3 of the 4 ingredients in Immune Tonic Berry interact with drugs. Each result below shows which ingredient is responsible. Echinacea angustifolia Stevia Leaf Extract Black Elderberry

Each ingredient & the kinds of drugs it affects

For each ingredient in Immune Tonic Berry 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.

Echinacea angustifolia12 drug types · 816 drugs

Caffeine

Echinacea can increase plasma levels of caffeine by inhibiting its metabolism.
Echinacea seems to increase plasma concentrations of caffeine by around 30%. This is likely due to inhibition of cytochrome P450 1A2 (CYP1A2) by echinacea.

Likelihood Probable Evidence B
Cytochrome P450 1A2 (Cyp1A2) Substrates

Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Echinacea appears to inhibit CYP1A2 enzymes in humans. Additionally, echinacea seems to increase plasma concentrations of caffeine, a CYP1A2 substrate, by around 30%. Theoretically, echinacea might increase levels of other drugs metabolized by CYP1A2.

Likelihood Possible Evidence B
Cytochrome P450 3A4 (Cyp3A4) Substrates

Echinacea may induce hepatic CYP3A4 and inhibit intestinal CYP3A4. This may increase or decrease levels of drugs metabolized by CYP3A4.
Several clinical trials have shown that taking echinacea for up to one month does not significantly affect the metabolism of various CYP3A4 substrates, including midazolam, docetaxel, etravirine, lopinavir-ritonavir, and darunavir-ritonavir. However, other clinical research shows that echinacea may increase the clearance of midazolam, suggesting that echinacea might induce CYP3A4. The discrepancy is thought to be due to differing effects of echinacea on intestinal versus hepatic CYP3A4 enzymes. Echinacea appears to induce hepatic CYP3A4 but inhibit intestinal CYP3A4. In some cases, these effects might cancel each other out, but in others, drug levels may be increased or decreased depending on the level of effect at hepatic and intestinal sites. The effect of echinacea on CYP3A4 activity may differ depending on the CYP3A4 substrate.

Likelihood Possible Evidence B
Etoposide (Vepesid)

Echinacea may increase levels of etoposide.
In one report, concomitant use of etoposide and echinacea was associated with more severe thrombocytopenia than the use of etoposide alone, suggesting inhibition of etoposide metabolism. Etoposide is a cytochrome P450 3A4 (CYP3A4) substrate. Echinacea has variable effects on CYP3A4, but some studies have reported inhibition of the enzyme.

Likelihood Possible Evidence D
Immunosuppressants

Echinacea has immunostimulant activity which may interfere with immunosuppressant therapy.
Theoretically, echinacea may interfere with immunosuppressant therapy because of its immunostimulant activity.

Likelihood Possible Evidence B
Darunavir (Prezista)

Theoretically, echinacea may interfere with the metabolism of darunavir; however, a small clinical study found no effect.
Darunavir is metabolized by cytochrome P450 3A4 (CYP3A4) and is administered with the CYP3A4 inhibitor ritonavir to increase its plasma concentrations. Echinacea has variable effects on CYP3A4, but administration of an E. purpurea root extract (Arkocapsulas Echinacea, Arkopharma) 500 mg four times daily for 14 days did not affect darunavir/ritonavir pharmacokinetics in 15 HIV-infected patients.

Likelihood Unlikely Evidence B
Dayquil Severe

Echinacea is reported to have varying effects on a number of Cytochrome P450 metabolizing enzymes in the liver, including CYP1A2 and CYP3A4, which play a role in acetaminophen and dextromethorphan metabolism (both contained in DayQuil Severe), respectively. Studies have reported both enzyme inhibition and induction, making it difficult to predict clinically significant drug interactions with reliability. Specific drug interaction studies reporting definitive results are rare, and potential drug interactions involving echinacea should likely be taken on a case-by-case basis. Based on what we know about how acetaminophen and dextromethorphan are metabolized, the risk of a clinically significant interaction between echinacea and DayQuil Severe is low.

Likelihood Unlikely Evidence A
Docetaxel (Taxotere)

Theoretically, echinacea may interfere with the metabolism of docetaxel; however, a small clinical study found no effect.
Docetaxel is metabolized by cytochrome P450 3A4 (CYP3A4). Echinacea has variable effects on CYP3A4, but taking E. purpurea whole plant extract (Echinaforce, A. Vogel Biopharma AG) 20 drops three times daily for 2 weeks did not alter the pharmacokinetics of docetaxel in one clinical study.

Likelihood Unlikely Evidence B
Etravirine (Intelence)

Theoretically, echinacea may interfere with the metabolism of etravirine; however, a small clinical study found no effect.
Etravirine is metabolized by cytochrome P450 3A4 (CYP3A4). Echinacea has variable effects on CYP3A4, but taking E. purpurea root extract (Arkocapsulas Echinacea, Arkopharma) 500 mg three times daily for 14 days did not alter the pharmacokinetics of etravirine in HIV-infected patients.

Likelihood Unlikely Evidence B
Lopinavir/Ritonavir (Kaletra)

Theoretically, echinacea may interfere with the metabolism of lopinavir; however, a small clinical study found no effect.
Lopinavir is metabolized by cytochrome P450 3A4 (CYP3A4) and is administered with the CYP3A4 inhibitor ritonavir to increase its plasma concentrations. Echinacea has variable effects on CYP3A4, but taking E. purpurea (Echinamide, Natural Factors Nutritional Products, Inc.) 500 mg three times daily for 14 days did not alter the pharmacokinetics of lopinavir/ritonavir in healthy volunteers.

Likelihood Unlikely Evidence B
Midazolam (Versed)

Theoretically, echinacea may increase the metabolism of intravenous midazolam.
Echinacea induces hepatic CYP3A4 and might decrease plasma levels of midazolam by about 20%, reducing the effectiveness of intravenous midazolam. Echinacea also appears to inhibit intestinal CYP3A4, which could theoretically increase the bioavailability of oral midazolam. This may cancel out the decrease in availability caused by induction of hepatic CYP3A4, such that overall plasma levels after oral administration of midazolam are not affected by echinacea.

Likelihood Possible Evidence B
Warfarin (Coumadin)

Echinacea seems to increase the clearance of warfarin, although the effect may not be clinically significant.
Preliminary clinical research in healthy male volunteers suggests that taking echinacea increases the clearance of the active S-isomer of warfarin after a single dose of warfarin, but there was not a clinically significant effect on the INR.

Likelihood Possible Evidence B
Echinacea angustifolia full monograph & interactions

Stevia Leaf Extract3 drug types · 259 drugs

Lithium

Theoretically, stevia might decrease clearance and increase levels of lithium.
Animal research suggests that stevia extracts might have diuretic activity. Theoretically, increased reabsorption of lithium along with sodium might reduce excretion and increase levels of lithium.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, stevia might increase the risk for hypoglycemia when combined with antidiabetes drugs.
Preliminary clinical research in patients with type 2 diabetes suggests that taking a single dose of stevia extract 1000 mg reduces postprandial blood glucose levels when taken with a meal. However, other clinical research in patients with type 1 or type 2 diabetes suggests that taking stevioside 250 mg three times daily does not significantly affect blood glucose levels or glycated hemoglobin (HbA1C) after three months of treatment.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Stevia extract and stevioside might lower blood pressure in patients with hypertension. However, other clinical research suggests that stevioside does not significantly lower blood pressure in patients with hypertension.

Likelihood Possible Evidence D
Stevia Leaf Extract full monograph & interactions

Black Elderberry2 drug types · 121 drugs

Immunosuppressants

Theoretically, elderberry might interfere with immunosuppressant therapy due to its immunostimulant activity.
Elderberry has immunostimulant activity, increasing the production of cytokines, including interleukin and tumor necrosis factor.

Likelihood Possible Evidence B
Pazopanib (Votrient)

Theoretically, elderberry might interact with pazopanib, potentially increasing the risk of adverse effects.
In one case, a 65-year-old patient taking pazopanib for 4 weeks for soft-tissue sarcoma developed severe nausea, loose stools, and elevated alanine transaminase and aspartate transaminase levels and was diagnosed with grade 3 liver injury. The patient reported taking elderberry supplements for 2 years, dose unspecified, and was also taking a multivitamin and a calcium supplement. The patient's symptoms and liver enzyme levels improved upon discontinuation of pazopanib and all supplements. Pazopanib treatment was re-initiated, at a lower dose, with no further evidence of liver injury. It was unclear in this case report if the elderberry supplements were derived from the berry, the flower, or the combination.

Likelihood Possible Evidence D
Black Elderberry full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Immune Tonic Berry, from the product label.

Vitanica Tasty Tonics

See all Vitanica Tasty Tonics products
Name
Vitanica
Street Address
12401 SW Leveton Dr.
City
Tualatin
State
OR
ZipCode
97062
Web Address
www.vitanica.com
Pharmacist Counseling Corner

Immune Tonic Berry by Vitanica Tasty Tonics: Common Questions

Does Immune Tonic Berry by Vitanica Tasty Tonics interact with any medications?
Yes. Based on its ingredients, Immune Tonic Berry has a known interaction with 1,037 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Immune Tonic Berry 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.
What is echinacea supposed to do?
Echinacea is traditionally used to support immune health, but our data doesn't show established evidence that it works for anxiety, athletic performance, ADHD, burns, chronic fatigue, or migraines. Talk with your pharmacist about what it's actually used for and what research supports it.
Can I take this if I'm allergic to ragweed?
No — you should avoid it. Both echinacea species in this product are more likely to trigger allergic reactions in people sensitive to ragweed and related plants like chrysanthemums, marigolds, and daisies. Reactions can range from mild rashes to serious ones like anaphylaxis.
What are the most common side effects?
From echinacea, you might get abdominal pain, nausea, vomiting, diarrhea, heartburn, or rashes. Stevia may cause bloating, dizziness, headache, muscle pain, or nausea — most of these tend to improve after a week.
Is it safe to take while I'm pregnant or breastfeeding?
We don't have safety data on file for echinacea or black elderberry during pregnancy or breastfeeding. Stevia in food amounts is considered safe, but we don't have reliable data for supplement doses. Talk with your doctor or pharmacist before taking this if you're pregnant or nursing.
Can I take this with caffeine?
Be cautious. The echinacea in this product can slow down how your body breaks down caffeine and raise caffeine levels by about 30%, which could increase jitteriness, anxiety, or sleep problems. If you drink a lot of coffee, tea, or energy drinks, check with your pharmacist first.

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.

Immune Tonic Berry label
Go deeper

The Full Monographs Behind Immune Tonic Berry’s Ingredients

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

Herb & supplement monograph

Echinacea

Interacts with 816 drugs

Echinacea is a popular herb taken to help prevent or shorten the common cold, but study results are mixed and the overall benefit appears small at best. It is generally well tolerated for sh...

Read the full Echinacea monograph → Herb & supplement monograph

Stevia

Interacts with 259 drugs

Stevia is a plant-based, calorie-free sweetener that is widely used as a sugar alternative and is considered safe in normal food amounts by major regulators. Purified stevia extracts have a...

Read the full Stevia monograph → Herb & supplement monograph

Elderberry

Interacts with 121 drugs

Elderberry is a popular herbal supplement, mainly taken to help with colds and flu. Some small studies suggest it may modestly shorten cold or flu symptoms, but the evidence is limited and n...

Read the full Elderberry monograph →
Sources

Sources & How We Checked

Immune Tonic Berry'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.

Echinacea 51 references
  1. Mullins RJ. Echinacea-associated anaphylaxis. Med J Aust 1998;168:170-1. PubMed
  2. Mullins RJ. Allergic reactions to Echinacea. J Allergy Clin Immunol 2000;104:S340-341 (Abstract 1003).
  3. Chavez ML, Chavez PI. Echinacea. Hosp Pharm 1998;33:180-8.
  4. Grimm W, Muller HH. A randomized controlled trial of the effect of fluid extract of Echinacea purpurea on the incidence and severity of colds and respiratory infections. Am J Med 1999;106:138-43. PubMed
  5. Taylor JA, Weber W, Standish L, et al. Efficacy and safety of echinacea in treating upper respiratory tract infections in children: a randomized controlled trial. JAMA 2003;290:2824-30.. PubMed
  6. Luettig B, Steinmuller C, Gifford GE, et al. Macrophage activation by the polysaccharide arabinogalactan isolated from plant cell cultures of Echinacea purpurea. J Natl Cancer Inst 1989;81:669-75. PubMed
  7. Stimpel M, Proksch A, Wagner H, et al. Macrophage activation and induction of macrophage cytotoxicity by purified polysaccharide fractions from the plant Echinacea purpurea. Infect Immun 1984;46:845-9. PubMed
  8. 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
  9. Gallo M, Sarkar M, Au W, et al. Pregnancy outcome following gestational exposure to echinacea: A prospective controlled study. Arch Intern Med 2000;160:3141-3. PubMed
  10. Soon SL, Crawford RI. Recurrent erythema nodosum associated with echinacea herbal therapy. J Am Acad Dermatol 2001;44:298-9. PubMed
  11. Mullins RJ, Heddle R. Adverse reactions associated with echinacea: the Australian experience. Ann Allergy Asthma Immunol 2002;88:42-51. PubMed
  12. Logan JL, Ahmed J. Critical hypokalemic renal tubular acidosis due to Sjogren's syndrome: association with the purported immune stimulant echinacea. Clin Rheumatol 2003;22:158-9.
  13. Schulten B, Bulitta M, Ballering-Bruhl B, et al. Efficacy of Echinacea purpurea in patients with a common cold. A placebo-controlled, randomised, double-blind clinical trial. Arzneimittelforschung 2001;51:563-8.. PubMed
  14. Yale SH, Glurich I. Analysis of the inhibitory potential of Ginkgo biloba, Echinacea purpurea, and Serenoa repens on the metabolic activity of cytochrome P450 3A4, 2D6, and 2C9. J Altern Complement Med 2005;11:433-9.
  15. Yale SH, Liu K. Echinacea purpurea therapy for the treatment of the common cold: a randomized, double-blind, placebo-controlled clinical trial. Arch Intern Med 2004;164:1237-41. PubMed
  16. Gorski JC, Huang S, Zaheer NA, et al. The effect of echinacea (Echinacea purpurea root) on cytochrome P450 activity in vivo.Clin Pharmacol Ther 2003;73 (Abstract PDII-A-8):P94. PubMed
  17. Lee AN, Werth VP. Activation of autoimmunity following use of immunostimulatory herbal supplements. Arch Dermatol 2004;140:723-7. PubMed
  18. Goel V, Lovlin R, Barton R, et al. Efficacy of a standardized echinacea preparation (Echinilin) for the treatment of the common cold: a randomized, double-blind, placebo-controlled trial. J Clin Pharm Ther 2004;29:75-83.
  19. Barrett B. Medicinal properties of Echinacea: a critical review. Phytomedicine 2003;10:66-86. PubMed
  20. Huntley AL, Thompson Coon J, Ernst E. The safety of herbal medicinal products derived from Echinacea species: a systematic review. Drug Saf 2005;28:387-400. PubMed
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See these in context on the Elderberry monograph →

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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.

© 2021 Therapeutic Research Center, LLC

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