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Dietary supplement

Green Rooibos Tea Ingredients & Drug Interactions

by Mountain Meadow Herbs

Green Rooibos Tea label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Green Rooibos Tea 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

Green Rooibos Tea is a dietary supplement by Mountain Meadow Herbs with 1 active ingredient. Its ingredients are commonly taken for caffeine-free beverage, antioxidant support, heart health.Based on those ingredients, 879 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Green Rooibos Tea. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Green Rooibos Tea by Mountain Meadow Herbs

Ask about any prescription or over-the-counter medication and we check it for interactions with Green Rooibos Tea by Mountain Meadow Herbs — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Green Rooibos Tea by Mountain Meadow Herbs

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Aug 6, 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 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: Green Rooibos Tea. Rooibos is a caffeine-free herbal tea from South Africa — it's not a true tea, but a plant beverage with a naturally sweet, earthy flavor.

The formula also includes vegetable glycerine, distilled water, and organic grain alcohol as inactive ingredients to preserve and deliver the tea.

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

This is a single-ingredient Rooibos product and its label doesn't state a use — see Rooibos's own graded uses on its monograph.

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 rooibos is effective for the conditions it's sometimes used for — age-related cognitive decline, hay fever, anxiety, cancer, heart disease, or diabetes all carry insufficient reliable evidence ratings. That doesn't mean it won't help; it means the research so far hasn't been robust enough to confirm it.

If you're considering this tea for any of those reasons, it's worth talking it through with your doctor to weigh the evidence and see if it fits your plan.

The evidence, ingredient by ingredient Rooibos

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 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Rooibos tea is generally well tolerated when you drink it as a normal beverage. The safety notes do flag that concentrated extracts haven't been well studied, so if you're using a highly concentrated form, check with your provider first.

One case report documented hepatic dysfunction (liver injury) and low platelet counts in a man drinking 10 cups daily for over a year — an unusually high amount — so regular, heavy intake isn't recommended without medical oversight.

Side effects, ingredient by ingredient Rooibos

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?
  • 1 of the 1 matched ingredient can interact with medications — Rooibos.
  • The most serious interaction on file is rated Moderate.
  • For scale: 880 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 start drinking this tea regularly, check with your own doctor or pharmacist if you take medications processed through your liver's CYP3A4, CYP2C19, CYP1A2, CYP2D6, or CYP2C9 enzymes — a very broad list that includes many blood pressure drugs, antidepressants, pain relievers, and statins. Atorvastatin (Lipitor) and ACE inhibitors warrant particular caution given the documented interactions.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Green Rooibos Tea is a caffeine-free beverage generally considered safe for occasional use, but it does interact with a broad range of medications by slowing liver clearance. If you take any prescription drugs — especially for blood pressure, cholesterol, depression, or pain — check your exact medications with the tool on this page before making this a regular habit.

Talk it over with your own doctor or pharmacist to make sure it's right for you.

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

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jun 24, 2020.

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 Green Rooibos Tea, straight from the product label.

Brand Mountain Meadow Herbs
Barcode (UPC) 7640116925663
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Jun 24, 2020
DSLD ID 223594
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Green Rooibos Tea by Mountain Meadow Herbs, 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:
0.25 tsp
Maximum serving Sizes:
0.25 tsp
Servings per container
96
UPC/BARCODE
7640116925663
IngredientAmount% DV
Green Rooibos Tea1.25 mL--

Other ingredients: Vegetable Glycerine, distilled Water, organic Grain Alcohol, Green Rooibos Tea

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

English

Nominal weight: 120 g

% DV = % Daily Value

Suggested/Recommended/Usage/Directions

Adult Suggested Use: 1/4 tsp. in water 1-3 times daily. Shake well before use.

Precautions

Store out of reach of young children.

If you are pregnant, nursing, have a medical condition, or are taking a prescription, consult your health care provider before using this product.

Dietary supplements/food supplements should not be used as a substitute for a varied diet. Do not exceed the stated recommended daily dose.

Storage

Store in a dry, cool place.

FDA Disclaimer Statement

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.

Formula

Aspalathus linearis hand-made extract

FDA Statement of Identity

Herbal Dietary Supplement

Formulation

Made in the USA.

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

See for yourself

Green Rooibos Tea by Mountain Meadow Herbs label

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

Green Rooibos Tea 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 Green Rooibos Tea by Mountain Meadow Herbs

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size0.25 tsp Dosage formLiquid Servings per container96 Amounts shown are per serving.

Green Rooibos Tea

Interacts with
879 drugs
1.25 mL per serving

Rooibos is a caffeine-free herbal tea from South Africa that is rich in antioxidants and generally considered safe as a beverage. While lab and early...

Green Rooibos Tea monograph & interactions

Other (inactive) ingredients: Vegetable Glycerine, Distilled Water, Organic Grain Alcohol, Green Rooibos Tea. These complete the product’s ingredient list but are not active constituents.

Interaction report

Green Rooibos Tea by Mountain Meadow Herbs Drug Interactions

Want to check YOUR meds against Green Rooibos Tea?

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
879Drugs
879 Moderate

Ingredients driving the most interactions

Green Rooibos Tea 879

Individual Drug Interactions

The ingredients in Green Rooibos Tea interact with 879 drugs. Click any drug to see the details.

1 of the 1 ingredient in Green Rooibos Tea interact with drugs. Each result below shows which ingredient is responsible. Green Rooibos Tea

Each ingredient & the kinds of drugs it affects

For each ingredient in Green Rooibos Tea with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Green Rooibos Tea7 drug types · 879 drugs

Ace Inhibitors (Aceis)

Theoretically, taking rooibos with ACEIs may increase the therapeutic and adverse effects of ACEIs.
Clinical research in healthy adults shows that taking a single dose of rooibos tea, 400 mL orally, inhibits angiotensin-converting enzyme activity.

Likelihood Possible Evidence D
Atorvastatin (Lipitor)

Theoretically, taking rooibos with atorvastatin may increase the therapeutic and adverse effects of atorvastatin.
Animal research shows that consuming green rooibos extract with atorvastatin daily for 3 weeks increases the maximum plasma concentration of atorvastatin by 6-fold and reduces the clearance of atorvastatin.

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

Theoretically, taking rooibos with CYP1A2 substrates may increase the effects of CYP1A2 substrates.
In vitro research shows that the methanol extract of rooibos leaves and stems inhibits CYP1A2 enzyme activity.

Likelihood Possible Evidence D
Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, taking rooibos with CYP2C19 substrates may increase the effects of CYP2C19 substrates.
In vitro research shows that the methanol extract of rooibos leaves and stems strongly inhibits CYP2C19 enzyme activity.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, taking rooibos with CYP2C9 substrates may increase the effects of CYP2C9 substrates.
In vitro research shows that the methanol extract of rooibos leaves and stems inhibits CYP2C9 enzyme activity.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, taking rooibos with CYP2D6 substrates may increase the effects of CYP2D6 substrates.
In vitro research shows that the methanol extract of rooibos leaves and stems inhibits CYP2D6 enzyme activity.

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

Theoretically, taking rooibos with CYP3A4 substrates may increase the effects of CYP3A4 substrates.
In vitro research shows that the methanol extract of rooibos leaves and stems strongly inhibits CYP3A4 enzyme activity.

Likelihood Possible Evidence D
Green Rooibos Tea full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Green Rooibos Tea, from the product label.

Mountain Meadow Herbs

See all Mountain Meadow Herbs products
Name
Mountain Meadow Herbs Inc.
Street Address
PO Box 9227
City
Kalispell
State
MT
ZipCode
59904
Phone Number
(888) 528 8615
Web Address
www.mountainmeadowherbs.com
Pharmacist Counseling Corner

Green Rooibos Tea by Mountain Meadow Herbs: Common Questions

Does Green Rooibos Tea by Mountain Meadow Herbs interact with any medications?
Yes. Based on its ingredients, Green Rooibos Tea has a known interaction with 879 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Green Rooibos Tea contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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 this safe to drink every day?
The facts show rooibos is well tolerated as a regular beverage, but concentrated extracts haven't been well studied. One documented case involved liver problems in someone drinking 10 cups daily for over a year — very high intake. For everyday use, especially if you're on medications, talk it over with your doctor or pharmacist.
Can I drink this if I take blood pressure medication?
Rooibos may increase the effects of ACE inhibitors (like lisinopril), so you'll want to check your specific blood pressure drugs with your pharmacist before making this a regular habit. Your doctor or pharmacist can help you figure out if it's okay for your situation.
Does this tea have caffeine?
No. Rooibos is naturally caffeine-free, so it won't give you the stimulant effect of black or green tea.
Will this help with anxiety or improve my memory?
The evidence we hold for anxiety, memory, and age-related cognitive decline is rated insufficient — meaning research hasn't been robust enough yet to confirm rooibos works for those uses. That doesn't rule it out, but the data doesn't establish it yet.
Is it safe to drink while pregnant or breastfeeding?
The safety data on file doesn't cover pregnancy or breastfeeding. Since rooibos does interact with medications, it's worth talking with your doctor or midwife before regular use during pregnancy or while nursing.
What does the grain alcohol in this do?
The organic grain alcohol is an inactive ingredient used to preserve the rooibos extract in the liquid formulation — it's not meant to be a medicinal part of the product.

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

Not sure if Green Rooibos Tea is safe with your meds?

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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.

Green Rooibos Tea label
Go deeper

The Full Monographs Behind Green Rooibos Tea’s Ingredients

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

Herb & supplement monograph

Rooibos

Interacts with 879 drugs

Rooibos is a caffeine-free herbal tea from South Africa that is rich in antioxidants and generally considered safe as a beverage. While lab and early studies suggest possible benefits for he...

Read the full Rooibos monograph →
Sources

Sources & How We Checked

Green Rooibos Tea'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 4 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.

Rooibos 4 references
  1. Fantoukh OI, Dale OR, Parveen A, et al. Safety Assessment of Phytochemicals Derived from the Globalized South African Rooibos Tea (Aspalathus linearis) through Interaction with CYP, PXR, and P-gp. J Agric Food Chem. 2019;67(17):4967-4975.
  2. Persson IA, Persson K, Hägg S, Andersson RG. Effects of green tea, black tea and Rooibos tea on angiotensin-converting enzyme and nitric oxide in healthy volunteers. Public Health Nutr. 2010;13(5):730-7. PubMed
  3. Reddy S, Mishra P, Qureshi S, Nair S, Straker T. Hepatotoxicity due to red bush tea consumption: a case report. J Clin Anesth. 2016;35:96-98. PubMed
  4. Patel O, Muller CJF, Joubert E, et al. Pharmacokinetic Interaction of Green Rooibos Extract With Atorvastatin and Metformin in Rats. Front Pharmacol. 2019;10:1243. PubMed

See these in context on the Rooibos 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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