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Dietary supplement

Digestive Stimulation Complex Ingredients & Drug Interactions

by TerraVita

Digestive Stimulation Complex 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 Digestive Stimulation Complex 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

Digestive Stimulation Complex is a dietary supplement by TerraVita with 3 active ingredients. Its ingredients are commonly taken for urinary tract and 'flushing' support, joint pain and arthritis, mild fluid retention (diuretic).Based on those ingredients, 578 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Boldo Glycerite Liquid Extract, Birch Glycerite Liquid Extract, Prickly Ash Tree Glycerite Liquid Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Digestive Stimulation Complex by TerraVita

Ask about any prescription or over-the-counter medication and we check it for interactions with Digestive Stimulation Complex by TerraVita — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Digestive Stimulation Complex by TerraVita

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 23, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

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

Why this rating?
  • The label discloses an exact amount for 0 of its 3 active ingredients.
  • “Proprietary Blend” is a proprietary blend — the label gives one combined amount (0.13 mL) without saying how much of each component you get.

This liquid contains 3 active ingredients: birch glycerite extract, boldo glycerite extract, and prickly ash tree glycerite extract, each a concentrated plant liquid. The product also contains glycerin as an inactive ingredient (a common preservative and sweetener in liquid supplements).

Does it work?

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

The label doesn't state a purpose we can grade — see each ingredient's own graded uses on its monograph instead.

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

The evidence we hold doesn't establish that any of these ingredients work for their intended uses. Birch shows insufficient evidence for joint pain, hair loss, or dandruff.

Boldo shows insufficient evidence for prostate health, gallbladder issues, or kidney stones. Prickly ash has no effectiveness ratings on file.

The evidence, ingredient by ingredient Birch Boldo Northern Prickly Ash

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 2 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.

Boldo carries the biggest safety concern: it contains ascaridole, a liver toxin, and medicinal doses can cause hepatotoxicity (liver injury), nausea, vomiting, and abdominal pain. Birch is generally well tolerated in food-like amounts but can trigger allergic reactions in people sensitive to birch pollen or birch bark, including contact dermatitis.

Prickly ash has limited safety data and is best used only short-term. Birch is unsafe in pregnancy and breastfeeding.

Boldo is unsafe in pregnancy and should be avoided while breastfeeding. Prickly ash lacks enough safety information and should be avoided during both pregnancy and breastfeeding — talk with your doctor or pharmacist for personalized guidance.

Side effects, ingredient by ingredient Birch Boldo Northern Prickly Ash

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 — Northern Prickly Ash, Birch, Boldo.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; lithium.
  • For scale: 579 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 this product, double-check with your doctor or pharmacist if you take medications that harm the liver, blood thinners (especially warfarin), lithium, transplant rejection drugs like tacrolimus, acid-reducing drugs (H2-blockers, antacids, or PPIs), or diuretics. Boldo carries Moderate risks with most of these; the others range from Minor to Moderate severity.

Check your own medication Run your meds through the checker above

The bottom line

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

This product combines three plant extracts with documented interactions and very limited evidence they work. If you take any medications — especially blood thinners, acid reducers, diuretics, lithium, or immunosuppressants — check with your doctor or pharmacist before starting.

The safety data for pregnancy and breastfeeding advise against use; talk it over with your healthcare provider.

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

Assessment coverage: 3 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jan 23, 2023.

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 Digestive Stimulation Complex, straight from the product label.

Brand TerraVita
Barcode (UPC) 064435237868
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Jan 23, 2023
DSLD ID 282102
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
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 Digestive Stimulation Complex by TerraVita, 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:
25 Drop(s)
Maximum serving Sizes:
40 Drop(s)
Servings per container
227
UPC/BARCODE
064435237868
IngredientAmount% DV
Proprietary Blend0.13 mL--
Birch Glycerite Liquid Extract0 NP--
Boldo Glycerite Liquid Extract0 NP--
Prickly Ash Tree Glycerite Liquid Extract0 NP--

Other ingredients: Glycerin

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.
Brand IP Statement(s)

Copyright 2018 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Formula

Glycerite liquid extract (1:5)

Formulation

Alcohol free

Suggested/Recommended/Usage/Directions

Suggested Use: Take 25-40 drops of extract in a small amount of warm water 3-4 times daily. Shake well before using.

Precautions

Keep away from children.

Do not use if safety seal around cap is broken or missing.

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

See for yourself

Digestive Stimulation Complex by TerraVita label

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

Digestive Stimulation Complex 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 Digestive Stimulation Complex by TerraVita

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

Serving size25 Drop(s) Dosage formLiquid Servings per container227 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.

Other (inactive) ingredients: Glycerin. These complete the product’s ingredient list but are not active constituents.

Interaction report

Digestive Stimulation Complex by TerraVita Drug Interactions

Want to check YOUR meds against Digestive Stimulation Complex?

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
578Drugs
482 Moderate 96 Minor

Ingredients driving the most interactions

Boldo Glycerite Liquid Extract 482
Birch Glycerite Liquid Extract 75
Prickly Ash Tree Glycerite Liquid Extract 36

Individual Drug Interactions

The ingredients in Digestive Stimulation Complex interact with 578 drugs. Click any drug to see the details.

3 of the 3 ingredients in Digestive Stimulation Complex interact with drugs. Each result below shows which ingredient is responsible. Boldo Glycerite Liquid Extract Birch Glycerite Liquid Extract Prickly Ash Tree Glycerite Liquid Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Digestive Stimulation Complex 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.

Boldo Glycerite Liquid Extract5 drug types · 482 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, taking boldo with anticoagulant/antiplatelet drugs might increase the risk of bleeding.
Animal and in vitro research shows that boldine, a constituent of boldo, has antiplatelet activity. In one case report, an adult taking a combination of boldo and fenugreek with warfarin experienced an increase in international normalized ratio (INR); however, it is unclear if this effect was due to boldo, fenugreek, the combination, or another factor.

Likelihood Possible Evidence D
Hepatotoxic Drugs

Theoretically, taking boldo with hepatotoxic drugs might increase the risk of hepatic injury and disease.
Boldo leaf contains ascaridole, a known liver toxin. Many cases of hepatotoxicity, including elevated liver transaminase levels and jaundice, have been reported in patients taking boldo.

Likelihood Possible Evidence D
Lithium

Theoretically, taking boldo with lithium might increase the levels and clinical effects of lithium.
Boldo is believed to have diuretic effects. Theoretically, these diuretic effects might reduce the excretion of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D
Tacrolimus (Prograf)

Taking boldo with tacrolimus may decrease the levels and clinical effects of tacrolimus, potentially increasing the risk of transplant rejection.
In one case report, a patient with a long-term history of stable tacrolimus levels developed subtherapeutic levels after taking boldo 300 mg twice daily orally for several weeks. Tacrolimus levels returned to normal after discontinuing boldo. However, the mechanism of this interaction is unclear.

Likelihood Possible Evidence D
Warfarin (Coumadin)

A combination of boldo and fenugreek was thought to be associated with an increased international normalized ratio (INR) in a female on warfarin. It is not clear if boldo, fenugreek, or the combination played a role in this interaction. Therefore, boldo may have additive effects with warfarin.

Likelihood Possible Evidence D
Boldo Glycerite Liquid Extract full monograph & interactions

Birch Glycerite Liquid Extract1 drug type · 75 drugs

Diuretic Drugs

Theoretically, birch might interfere with diuretic therapy.

Likelihood Possible Evidence D
Birch Glycerite Liquid Extract full monograph & interactions

Prickly Ash Tree Glycerite Liquid Extract3 drug types · 36 drugs

Antacids

Theoretically, northern prickly ash might decrease the effectiveness of antacids.
There are reports that northern prickly ash increases stomach acid.

Likelihood Possible Evidence D
H2-Blockers

Theoretically, northern prickly ash might decrease the effectiveness of H2-blockers.
There are reports that northern prickly ash increases stomach acid.

Likelihood Possible Evidence D
Proton Pump Inhibitors (Ppis)

Theoretically, northern prickly ash might decrease the effectiveness of PPIs.
There are reports that northern prickly ash increases stomach acid.

Likelihood Possible Evidence D
Prickly Ash Tree Glycerite Liquid Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Digestive Stimulation Complex, from the product label.

TerraVita

See all TerraVita products
Name
ZooScape LLC
Phone Number
844-449-0444
Web Address
www.ZooScape.com
Pharmacist Counseling Corner

Digestive Stimulation Complex by TerraVita: Common Questions

Does Digestive Stimulation Complex by TerraVita interact with any medications?
Yes. Based on its ingredients, Digestive Stimulation Complex has a known interaction with 578 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Digestive Stimulation Complex contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take this if I'm pregnant or breastfeeding?
No. Birch is unsafe in pregnancy and breastfeeding, boldo is unsafe in pregnancy and should be avoided while breastfeeding, and prickly ash lacks enough safety data to recommend it during either. Talk with your doctor or pharmacist about what's safe for you.
Can I take this with warfarin or other blood thinners?
Not without checking first. Boldo has been linked in a case report to increased bleeding risk with warfarin, and it also has antiplatelet activity of its own. Your doctor or pharmacist needs to review your specific medication.
What does each ingredient do?
The product contains birch, boldo, and prickly ash — all traditional plant extracts marketed for digestive support. However, we hold no solid evidence that any of them actually work for that purpose. The facts don't explain what role each is meant to play.
What are the most common side effects?
Boldo can cause abdominal pain, nausea, and vomiting when taken in medicinal amounts. Birch can cause allergic reactions in people sensitive to birch pollen. Liver injury (hepatotoxicity) is a rare but serious risk with boldo.
Is it safe to use long-term?
Not according to the safety data. Prickly ash is recommended only for short-term use. Boldo carries liver toxicity risks and is best used only in low doses for brief periods.
Does it contain any fillers?
It contains glycerin as an inactive ingredient — a preservative and sweetener commonly used in liquid supplements.

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.

Digestive Stimulation Complex label
Go deeper

The Full Monographs Behind Digestive Stimulation Complex’s Ingredients

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

Herb & supplement monograph

Birch

Interacts with 75 drugs

Birch is a tree whose leaves, bark, and sap are used in traditional remedies, most often as a mild diuretic or for joint and urinary complaints. Solid human evidence is limited, and birch is...

Read the full Birch monograph → Herb & supplement monograph

Boldo

Interacts with 482 drugs

Boldo is a South American shrub whose leaves are traditionally used for digestive and gallbladder complaints, but good human evidence is very limited. The leaves and oil contain ascaridole,...

Read the full Boldo monograph → Herb & supplement monograph

Northern Prickly Ash

Interacts with 36 drugs

Northern Prickly Ash is a North American shrub whose bark and berries have a long history in folk medicine, especially for toothache, joint pain, and sluggish digestion. Modern scientific ev...

Read the full Northern Prickly Ash monograph →
Sources

Sources & How We Checked

Digestive Stimulation Complex'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 16 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.

Birch 4 references
  1. Robbers JE, Tyler VE. Tyler's Herbs of Choice: The Therapeutic Use of Phytomedicinals. New York, NY: The Haworth Herbal Press, 1999.
  2. Lahti, A. and Hannuksela, M. Immediate contact allergy to birch leaves and sap. Contact Dermatitis 1980;6(7):464-465. PubMed
  3. Allam JP, Wuestenberg E, Wolf H, et al. Immunologic response and safety in birch pollen sublingual versus oral vestibule immunotherapy: a pilot study. J Allergy Clin Immunol. 2014;133(6):1757-9.e3. PubMed
  4. Meyer-Hoffert U, Brasch J. Allergic contact dermatitis caused by betulin-containing triterpene extract from the outer bark of birch (Betula alba). Contact Dermatitis. 2013;68(6):382-3.

See these in context on the Birch monograph →

Boldo 10 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Lambert J, Cormier J. Potential interaction between warfarin and boldo-fenugreek. Pharmacotherapy 2001;21:509-12. PubMed
  3. Piscaglia F, Leoni S, Venturi A, et al. Caution in the use of boldo in herbal laxatives: a case of hepatotoxicity. Scand J Gastroenterol 2005;40:236-9. PubMed
  4. Agarwal SC, Crook JR, Pepper CB. Herbal remedies -- how safe are they? A case report of polymorphic ventricular tachycardia/ventricular fibrillation induced by herbal medication used for obesity. Int J Cardiol 2006;106:260-1. PubMed
  5. Teng, C. M., Hsueh, C. M., Chang, Y. L., Ko, F. N., Lee, S. S., and Liu, K. C. Antiplatelet effects of some aporphine and phenanthrene alkaloids in rabbits and man. J Pharm Pharmacol 1997;49(7):706-711. PubMed
  6. Carbajal R, Yisfalem A, Pradhan N, et al. Case report: Boldo (Peumus boldus) and tacrolimus interaction in a renal transplant patient. Transplant Proc 2014;46(7):2400-2. PubMed
  7. Almeida ER, Melo AM, Xavier H. Toxicological evaluation of the hydro-alcohol extract of the dry leaves of Peumus boldus and boldine in rats. Phytother Res 2000;14(2):99-102. DOI
  8. Ribeiro RJ, Silvestre C, Duarte C. Hidden risks of alternative medicines: a case of boldo-induced hepatotoxicity. J Diet Suppl 2017;14(2):186-90. PubMed
  9. Oliveira Sá A, Pimentel T, Oliveira N. Boldo-Induced Hepatotoxicity: A Case of Unexplained Jaundice. Eur J Case Rep Intern Med 2020;7(12):002116. PubMed
  10. Valdes R, Feuereisen A, Bellinghausen M. Allergic Contact Dermatitis to Boldo. Dermatitis 2021;32(2):e31-e32. PubMed

See these in context on the Boldo monograph →

Northern Prickly Ash 2 references
  1. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

See these in context on the Northern Prickly Ash monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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