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Dietary supplement

Couch Ingredients & Drug Interactions

by Herbal Terra

Couch label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Oct 7, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Couch 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

Couch is a dietary supplement by Herbal Terra with 1 active ingredient. Its ingredients are commonly taken for general nutrition support, digestive health, antioxidant support.Based on those ingredients, 272 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are certified organic Couch (Elymus repens) dried root 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 Couch by Herbal Terra

Ask about any prescription or over-the-counter medication and we check it for interactions with Couch by Herbal Terra — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Couch by Herbal Terra

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 16, 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.

Herbal Terra's Couch contains one active ingredient: certified organic couch grass (Elymus repens) root as a dried liquid extract. The only other ingredient listed is menstruum, which is the liquid used to extract and preserve the herb.

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 Wheatgrass product and its label doesn't state a use — see Wheatgrass'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 for couch grass isn't established yet. Our data shows insufficient reliable evidence to rate it for bronchitis, benign prostatic hyperplasia (enlarged prostate), beta-thalassemia, cancer, or the common cold.

That doesn't mean it doesn't work — it means the research to prove it hasn't been done or published in a way we can rely on.

The evidence, ingredient by ingredient Wheatgrass

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.

Wheatgrass is generally well tolerated when used as a food, but quality and contamination concerns warrant caution. The most common side effects reported are allergic reactions, loss of appetite, constipation, and nausea.

Because wheatgrass contains wheat, it can trigger allergic reactions in people sensitive to wheat — a major food allergen. Safety data in pregnancy and lactation isn't on file, so talk with your doctor or pharmacist for personalized advice if you're pregnant, nursing, or planning either.

Side effects, ingredient by ingredient Wheatgrass

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 — Wheatgrass.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 272 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 with your doctor or pharmacist before taking this if you use antidiabetes drugs (blood sugar medications) — wheatgrass may lower your glucose too much. Also flag any medication broken down by the liver enzyme CYP1A2; the herb may reduce its effectiveness.

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.

This product is a single-herb extract used in herbal medicine, but the evidence for its effectiveness isn't clear yet. If you take antidiabetes medications or any drug metabolized by your liver, check with your doctor or pharmacist first — the interactions could affect how well your medicines work.

Wheat allergies are a real concern here.

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 Sep 25, 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 Couch, straight from the product label.

Brand Herbal Terra
Barcode (UPC) 7429523386379
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Sep 25, 2020
DSLD ID 234436
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Organic, Gluten Free, Sugar Free
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 Couch by Herbal Terra, 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:
1 mL
Maximum serving Sizes:
1 mL
Servings per container
120
UPC/BARCODE
7429523386379
IngredientAmount% DV
certified organic Couch (Elymus repens) dried root liquid extract970 mg--

Other ingredients: Menstruum

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.
Formulation

Origin of plant material: Poland.

Manufactured in the USA in an FDA registered facility

Sugar free

Dried herb/menstruum ratio: 1:3 Expertly extracted Laboratory tested 330 mg/1 mL Premium product Super concentrated liquid herbal extract

Non GMO

No artificial ingredients, GMO, gluten, color additives, fillers, preservatives or binders. Natural Gluten Free

Suggested/Recommended/Usage/Directions

Direction Shake well before use. Adults take up to 30 drops (1 mL, one full squeeze of the dropper bulb) in 3-4 fl. oz of juice or water up to 4 times a day. We recommend to seek expert medical advice before taking this or any other herbal supplements.

FDA Disclaimer Statement

Notice This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease.

Precautions

Caution May have contraindications.

Do not use if you are allergic to any ingredients.

Consult a physician before using during pregnancy, if nursing, or if you are on any medications.

Keep out of the reach of children.

Storage

Store in a cool, dry, dark place.

Formula

Elymus repens

FDA Statement of Identity

Herbal Supplement

Seals/Symbols

Made in USA Made in an FDA registered facility Natural Gluten Free

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

See for yourself

Couch by Herbal Terra label

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

Couch 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 Couch by Herbal Terra

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

Serving size1 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.

Certified organic Couch (Elymus repens) dried root liquid extract

Interacts with
272 drugs
970 mg per serving

Wheatgrass is the young grass of the wheat plant, taken as a juice or powder, and is mainly used as a concentrated source of vitamins and plant nutrie...

Certified organic Couch (Elymus repens) dried root liquid extract monograph & interactions

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

Interaction report

Couch by Herbal Terra Drug Interactions

Want to check YOUR meds against Couch?

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
272Drugs
272 Moderate

Ingredients driving the most interactions

certified organic Couch (Elymus repens) dried root liquid extract 272

Individual Drug Interactions

The ingredients in Couch interact with 272 drugs. Click any drug to see the details.

1 of the 1 ingredient in Couch interact with drugs. Each result below shows which ingredient is responsible. certified organic Couch (Elymus repens) dried root liquid extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Couch 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.

certified organic Couch (Elymus repens) dried root liquid extract2 drug types · 272 drugs

Antidiabetes Drugs

Theoretically, taking wheatgrass with antidiabetes drugs might lower blood glucose levels and increase the risk of hypoglycemia.
Animal research shows that taking wheatgrass stimulates the release of insulin from beta-cells and lowers blood glucose.

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

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

Likelihood Possible Evidence D
certified organic Couch (Elymus repens) dried root liquid extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Couch, from the product label.

Herbal Terra

See all Herbal Terra products
Name
Herbal Terra
Pharmacist Counseling Corner

Couch by Herbal Terra: Common Questions

Does Couch by Herbal Terra interact with any medications?
Yes. Based on its ingredients, Couch has a known interaction with 272 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Couch 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.
What is couch grass used for?
In herbal practice, couch grass root has been used for bronchitis, prostate health, and other conditions, but the research to prove these uses isn't solid yet. We don't have reliable evidence that it works for any of them.
Can I take this if I have a wheat allergy?
No. Wheatgrass contains wheat, which is a major allergen, so it can trigger allergic reactions in people who are wheat-sensitive. Avoid it and talk with your doctor if you're unsure about your wheat status.
What side effects does wheatgrass cause?
The most common ones are allergic reactions, nausea, loss of appetite, and constipation. Most people tolerate it well, but nausea and constipation do show up in the research.
Is it safe to use while pregnant or breastfeeding?
We don't have safety information for wheatgrass in pregnancy or lactation, so we can't say either way. Talk with your doctor or pharmacist for personalized advice.
Does couch grass lower blood sugar?
Animal research shows wheatgrass can trigger insulin release and lower blood glucose. That's why taking it with diabetes medications is a concern — the combined effect could drop your blood sugar too low.

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

Not sure if Couch is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Couch label
Go deeper

The Full Monographs Behind Couch’s Ingredients

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

Herb & supplement monograph

Wheatgrass

Interacts with 272 drugs

Wheatgrass is the young grass of the wheat plant, taken as a juice or powder, and is mainly used as a concentrated source of vitamins and plant nutrients. Solid scientific evidence for most...

Read the full Wheatgrass monograph →
Sources

Sources & How We Checked

Couch'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 5 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.

Wheatgrass 5 references
  1. Ben-Arye E, Golden E, Wengrower D, et al. Wheat grass juice in the treatment of active distal ulcerative colitis a randomized double-blind placebo-controlled trial. Scand J Gastroenterol 2002;4:444-9.. PubMed
  2. Mohan Y, Jesuthankaraj GN1, Ramasamy Thangavelu N. Antidiabetic and antioxidant properties of Triticum aestivum in streptozotocin-induced diabetic rats. Adv Pharmacol Sci 2013;2013:716073.
  3. Shakya G, Randhi PK, Pajaniradje S, Mohankumar K, Rajagopalan R. Hypoglycaemic role of wheatgrass and its effect on carbohydrate metabolic enzymes in type II diabetic rats. Toxicol Ind Health 2016;32(6):1026-32. PubMed
  4. Food and Drug Administration. Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA); Public Law 108-282, Title II. Accessed on May 19, 2021. Available at: https://www.fda.gov/food/food-allergensgluten-free-guidance-documents-regulatory-infor
  5. Haron MH, Dale O, Martin K, et al. Evaluation of the Herb-Drug Interaction Potential of Commonly Used Botanicals on the US Market with Regard to PXR- and AhR-Mediated Influences on CYP3A4 and CYP1A2. J Diet Suppl 2022. PubMed

See these in context on the Wheatgrass 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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