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Dietary supplement

Dulse Alcohol Free Ingredients & Drug Interactions

by Herbal Terra

Dulse Alcohol Free 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 Dulse Alcohol Free 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

Dulse Alcohol Free is a dietary supplement by Herbal Terra with 1 active ingredient. Its ingredients are commonly taken for nutritional supplement (iodine, minerals), source of plant protein, general wellness.Based on those ingredients, 85 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Dulse Leaf Extract, Dry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Dulse Alcohol Free by Herbal Terra

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

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HelloPharmacist Scorecard of Dulse Alcohol Free 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 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 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: dulse leaf extract (dry form). Dulse is a type of seaweed rich in potassium and iodine, two minerals your body needs for heart health and thyroid function.

The liquid is made up with glycerin and water as inactive ingredients.

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 — see Dulse's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: Nutritional supplement and general wellness.
  • We looked for evidence on: Iodine deficiency, Thyroid support, Mineral supplementation, Nutritional status.
  • The closest evidence on file: Dulse is rated "Insufficient Reliable Evidence To Rate" for Iodine deficiency (Natural Medicines).

The evidence we hold on dulse doesn't establish that it works for lowering cholesterol or treating iodine deficiency — the data available rates both uses as having insufficient reliable evidence. That doesn't mean it doesn't work; it means we don't have solid trial data to back those claims yet.

The evidence, ingredient by ingredient Dulse

How safe is it?

Some data gaps
Safety Information · database check
Some gaps

Safety data exists for these ingredients, but with some important gaps.

Why this rating?
  • We hold adverse-effect (side-effect) data for 0 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.

Dulse is generally well tolerated as a food, but the safety data cautions against taking concentrated supplement doses. The reason is that seaweed supplements can have unpredictable iodine and potassium levels, and long-term safety data is limited.

If you're pregnant or breastfeeding, avoid the supplement form — excess iodine can pass into breast milk, and there isn't enough data to know it's safe. Food amounts are a different story; ask your doctor or pharmacist about your situation.

Side effects, ingredient by ingredient Dulse

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 — Dulse.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: heart-rhythm medications.
  • For scale: 85 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 pharmacist before starting if you take digoxin (Lanoxin), thyroid hormone, antithyroid drugs, or amiodarone (Cordarone) — all Moderate concerns. Also flag potassium-sparing diuretics, ACE inhibitors, or angiotensin receptor blockers (ARBs), which carry Minor-level theoretical risks.

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 some safety-information gaps remain.

If you're considering dulse as a supplement and you take any heart, thyroid, or blood pressure medication, you need to check with us first — this one has some meaningful theoretical interactions, especially with digoxin and thyroid drugs. Food-based iodine and potassium are fine for most people, but concentrated supplements need a closer look.

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 Nov 22, 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 Dulse Alcohol Free, straight from the product label.

Brand Herbal Terra
Barcode (UPC) 7386005054952
Net contents 2 Fluid Ounce(s); 60 mL
Market status On market
Date entered into DSLD Nov 22, 2024
DSLD ID 324153
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), 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 Dulse Alcohol Free 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
60
UPC/BARCODE
7386005054952
IngredientAmount% DV
Dulse Leaf Extract, Dry1156 mg--

Other ingredients: Glycerin, Water

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Suggested/Recommended/Usage/Directions

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.

Precautions

We recommend to seek expert medical advice before taking. May have contraindications and cause adverse reaction.

Consult a physician before giving to children under 18, before using during pregnancy, if nursing, or if you are on any medications.

Consult a physician before giving to children under 18, before using during pregnancy, if nursing, or if you are on any medications. Keep out of the reach of children!

Do not use if you are allergic to any ingredients.

Storage

Store in a cool, dry, dark place.

FDA Disclaimer Statement

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

Formulation

cGMP Made in compliance with cGMP 21 CFR 111 in an FDA registered and inspected facility.

Sugar free

Expertly extracted 100% natural Premium product

No alcohol (ethyl), artificial ingredients, color additives, fillers or binders.

Natural Gluten free

Formula

Palmaria palmata

FDA Statement of Identity

Herbal Supplement

General Statements

Organic raw material.

Seals/Symbols

Made in USA

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

See for yourself

Dulse Alcohol Free by Herbal Terra label

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

Dulse Alcohol Free 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 Dulse Alcohol Free 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 container60 Amounts shown are per serving.

Dulse Leaf Extract, Dry

Interacts with
85 drugs
1156 mg per serving Form: Palmaria palmata Leaf Extract, Dry

Dulse is a red seaweed eaten as a food in many coastal cultures and is a natural source of iodine, potassium, protein, and antioxidant compounds. As a...

Dulse Leaf Extract, Dry monograph & interactions

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

Interaction report

Dulse Alcohol Free by Herbal Terra Drug Interactions

Want to check YOUR meds against Dulse Alcohol Free?

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 Go to the checker
85Drugs
23 Moderate 62 Minor

Ingredients driving the most interactions

Dulse Leaf Extract, Dry 85

Individual Drug Interactions

The ingredients in Dulse Alcohol Free interact with 85 drugs. Click any drug to see the details.

1 of the 1 ingredient in Dulse Alcohol Free interact with drugs. Each result below shows which ingredient is responsible. Dulse Leaf Extract, Dry

Each ingredient & the kinds of drugs it affects

For each ingredient in Dulse Alcohol Free 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.

Dulse Leaf Extract, Dry7 drug types · 85 drugs

Amiodarine (Cordarone)

Theoretically, combining dulse with amiodarone might cause excessively high iodine levels.
Dulse is rich in iodine, and amiodarone contains 37.3% iodine and can increase iodine levels.

Likelihood Possible Evidence D
Antithyroid Drugs

Theoretically, due to its iodine content, dulse might alter the effects of antithyroid drugs.
Dulse is rich in iodine. Iodine in high doses has been reported to cause both hyperthyroidism and hypothyroidism, depending on the individual's past medical history.

Likelihood Possible Evidence D
Digoxin (Lanoxin)

Theoretically, dulse might increase the risk of hyperkalemia when taken with digoxin.
Dulse is rich in potassium, and digoxin can increase potassium levels in the blood. This interaction has not been demonstrated in humans.

Likelihood Possible Evidence D
Thyroid Hormone

Theoretically, due to its iodine content, dulse might alter the effects of thyroid hormone.
Dulse is rich in iodine. Iodine in high doses has been reported to cause both hyperthyroidism and hypothyroidism, depending on the individual's past medical history. Although dulse has been associated with a statistically significant increase in thyroid stimulating hormone (TSH) levels in clinical research, clinically significant increases have not been documented.

Likelihood Possible Evidence D
Ace Inhibitors (Aceis)

Theoretically, dulse might increase the risk of hyperkalemia when taken with ACEIs.
Dulse is rich in potassium. ACEIs block the actions of the renin-angiotensin-aldosterone system and reduce potassium excretion. Concomitant use of these drugs with moderate dietary potassium intake (about 3775-5200 mg daily) does not increase serum potassium levels. However, using these drugs while consuming dulse in quantities that provide larger amounts of potassium daily might increase the risk of hyperkalemia. Additionally, in vitro research suggests that dulse protein hydrolysates inhibit the activity of ACE. However, these effects have not been demonstrated in humans.

Likelihood Possible Evidence D
Angiotensin Receptor Blockers (Arbs)

Theoretically, dulse might increase the risk of hyperkalemia when taken with ARBs.
Dulse is rich in potassium. ARBs block the actions of the renin-angiotensin-aldosterone system and reduce potassium excretion. Concomitant use of these drugs with moderate dietary potassium intake (about 3775-5200 mg daily) does not increase serum potassium levels. However, using these drugs while consuming dulse in quantities that provide higher amounts of potassium daily might increase the risk of hyperkalemia. Additionally, in vitro research suggests that dulse protein hydrolysates inhibit the activity of angiotensin converting enzyme (ACE). However, these effects have not been demonstrated in humans.

Likelihood Possible Evidence D
Potassium-Sparing Diuretics

Theoretically, dulse might increase the risk of hyperkalemia when taken with potassium-sparing diuretics.
Dulse is rich in potassium, and potassium-sparing diuretics can increase potassium levels in the blood. This interaction has not been shown in humans.

Likelihood Possible Evidence D
Dulse Leaf Extract, Dry full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Dulse Alcohol Free, from the product label.

Herbal Terra

See all Herbal Terra products
Name
Herbal Terra LLC
Phone Number
+18083857868
Web Address
herbalterra.com
Pharmacist Counseling Corner

Dulse Alcohol Free by Herbal Terra: Common Questions

Does Dulse Alcohol Free by Herbal Terra interact with any medications?
Yes. Based on its ingredients, Dulse Alcohol Free has a known interaction with 85 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Dulse Alcohol Free 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 dulse, and why is it in this supplement?
Dulse is a type of edible seaweed that's naturally high in potassium and iodine, minerals important for heart and thyroid health. It's used as a supplement for those reasons, though we don't yet have solid evidence it works for lowering cholesterol or correcting iodine deficiency.
Can I take this if I'm pregnant or breastfeeding?
The safety data advises against concentrated supplement doses during pregnancy and breastfeeding because excess iodine can cross into breast milk and we don't have enough information to know it's safe. Food amounts are different. Talk with your doctor or pharmacist about what's right for you.
What are the side effects?
We don't hold any documented side-effect data for dulse from clinical trials. That said, since this supplement is rich in potassium and iodine, people taking medications that already raise potassium or iodine levels should be cautious.
Why does this product interact with so many medications?
The total count reflects the breadth of drugs affected by dulse's two main properties — its high potassium and iodine content. Many common heart, blood pressure, and thyroid medications interact with one or both of those minerals, so a single ingredient can theoretically affect multiple drug types.
Is this safe to take if I'm on a thyroid medication?
Not without checking first. Dulse is high in iodine, which can alter how thyroid hormones work — potentially making them less effective or causing other thyroid problems depending on your history. Run it by your pharmacist before you start.

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

Not sure if Dulse Alcohol Free is safe with your meds?

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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.

Dulse Alcohol Free label
Go deeper

The Full Monographs Behind Dulse Alcohol Free’s Ingredients

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

Herb & supplement monograph

Dulse

Interacts with 85 drugs

Dulse is a red seaweed eaten as a food in many coastal cultures and is a natural source of iodine, potassium, protein, and antioxidant compounds. As a food it is generally considered safe fo...

Read the full Dulse monograph →
Sources

Sources & How We Checked

Dulse Alcohol Free'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.

Dulse 5 references
  1. Malta D, Arcand J, Ravindran A, Floras V, Allard JP, Newton GE. Adequate intake of potassium does not cause hyperkalemia in hypertensive individuals taking medications that antagonize the renin angiotensin aldosterone system. Am J Clin Nutr 2016 Oct;104(4 PubMed
  2. Allsopp P, Crowe W, Bahar B, et al. The effect of consuming Palmaria palmata-enriched bread on inflammatory markers, antioxidant status, lipid profile and thyroid function in a randomised placebo-controlled intervention trial in healthy adults. Eur J Nutr PubMed
  3. McGrath BM, Harmon JP, Bishop G. Palmaria palmata (Dulse) as an unusual maritime aetiology of hyperkalemia in a patient with chronic renal failure: a case report. J Med Case Rep. 2010;4:301. PubMed
  4. Furuta T, Miyabe Y, Yasui H, Kinoshita Y, Kishimura H. Angiotensin I converting enzyme inhibitory peptides derived from phycobiliproteins of dulse Palmaria palmata. Mar Drugs. 2016;14(2):32. PubMed
  5. Takase T, Nakamura A, Miyoshi H, et al. Effects of Palmaria palmata on lipid metabolism and glycemic control in participants with hypercholesterolemia in a randomized double-blind placebo-controlled trial. Phytother Res. 2020.

See these in context on the Dulse 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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