Sea Kelp 325 mcg Ingredients & Drug Interactions
by NusaPure
What is this page for?
First and foremost: checking Sea Kelp 325 mcg 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
Sea Kelp 325 mcg is a dietary supplement by NusaPure with 2 active ingredients. Its ingredients are commonly taken for preventing iodine deficiency, supporting thyroid hormone production, general energy and metabolism support.Based on those ingredients, 891 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Kelp, Iodine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Sea Kelp 325 mcg by NusaPure
Ask about any prescription or over-the-counter medication and we check it for interactions with Sea Kelp 325 mcg by NusaPure — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Sea Kelp 325 mcg by NusaPure
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.
What’s inside
Full disclosure
This product has 2 active ingredients: iodine and kelp. Iodine is an essential mineral your body needs to make thyroid hormone and support metabolism — your thyroid gland stores it and uses it every day.
Kelp is a seaweed that naturally contains iodine and other nutrients. The inactive ingredients are cellulose, silica, and rice flour, which help form and stabilize the capsule.
Does it work?
Strong evidence
Iodine is likely effective for preventing thyroid problems from radiation exposure and treating iodine deficiency, the main reason most people need supplemental iodine. It's possibly effective for oral sores (mucositis) and gum disease (periodontitis), though the evidence is less robust.
We hold no effectiveness data for kelp itself.
How safe is it?
Well-documented data
Iodine is generally well tolerated when you take amounts that stay within safe daily limits and don't exceed what's medically advised. High doses can cause thyroid problems — both underactive and overactive thyroid, as well as acnelike skin lesions (iododerma) if taken in very large amounts over time.
A small number of people are hypersensitive to iodine itself and can have reactions including swelling, rash, or rarely, serious allergic responses. In pregnancy, adequate iodine is important for the baby's brain and thyroid development, but you should only take the amount your doctor recommends — avoid high-dose products on your own.
Some iodine passes into breast milk, so again, follow your doctor's dosing guidance rather than adding extra on top of your prenatal or postnatal advice.
Meds to double-check
Moderate interaction found
Check with your pharmacist or doctor if you take lithium, antithyroid medications, or amiodarone (Cordarone) — all have moderate interactions with the iodine in this product that require thyroid monitoring. No other interactions are documented for the ingredients we could check.
The bottom line
Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This supplement is useful if you're iodine-deficient and not at risk for thyroid disease. If you take lithium, antithyroid drugs, or amiodarone, you need your doctor's go-ahead and thyroid monitoring.
Pregnant or breastfeeding women should confirm the dose with their doctor first. Talk to your pharmacist before starting, especially if you have any thyroid condition.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 20, 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
General information
Key facts about Sea Kelp 325 mcg, straight from the product label.
| Brand | NusaPure |
|---|---|
| Barcode (UPC) | X001MLQ6CN |
| Net contents | 200 Veg Cap(s) |
| Market status | On market |
| Date entered into DSLD | Jun 20, 2024 |
| DSLD ID | 307391 |
| Product type | Botanical With Nutrients |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy Free |
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 Sea Kelp 325 mcg by NusaPure, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Iodine | 325 mcg | 216.67% |
| Kelp | 65 mg | -- |
Other ingredients: Cellulose, Silica, Rice Flour
Tap any ingredient to jump to its full detail below.
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
New
Suggested/Recommended/Usage/Directions
Directions: Take one (1) capsule daily, preferably with a meal.
Precautions
Warning: For adults only.
Consult physician if pregnant/nursing, taking medication (especially thyroid medications), taking other iodine supplements, or have a medical condition (especially any thyroid disorder).
Discontinue use and consult your doctor if any adverse reactions occur.
Keep out of reach of children.
Allergen information: Not manufactured with yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
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.
Seals/Symbols
Premium Quality Assembled in USA GMO free Made with Non-GMO ingredients Gluten free FDA Registered Facility
Manufactured in a cGMP inspected facility
Formula
Sea Kelp 325 mcg Natural iodine
Formulation
Assembled in USA Tested Supports normal nutritional supplementation Guaranteed quality, laboratory tested Made under strict GMP guidelines
Suitable for vegetarians/vegans
Allergen information: Not manufactured with yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish or tree nut ingredients. GMO free Made with Non-GMO ingredients
Natural color variation may occur in this product.
FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Sea Kelp 325 mcg by NusaPure label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Sea Kelp 325 mcg by NusaPure
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Veggie Capsule(s) Dosage formCapsule Servings per container200 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.
Iodine
Interacts with7 drugs
Iodine is an essential mineral your body needs to make thyroid hormones, and most people get enough from iodized salt, dairy, and seafood. Supplements...
Iodine monograph & interactionsKelp
Interacts with891 drugs
Fucus vesiculosus (bladderwrack) is a brown seaweed rich in iodine that has been used traditionally for thyroid concerns, weight, and skin. There is l...
Kelp monograph & interactionsOther (inactive) ingredients: Cellulose, Silica, Rice Flour. These complete the product’s ingredient list but are not active constituents.
Sea Kelp 325 mcg by NusaPure Drug Interactions
HelloPharmacist Interaction Report
NusaPure Sea Kelp 325 mcg contains iodine, which interacts with a small number of medications, most notably lithium.
Lithium is a mood stabilizer that already slows your thyroid — adding iodine can push thyroid function down further, risking low thyroid hormone levels (hypothyroidism). If you take lithium, your doctor will need to monitor your thyroid function closely while taking this product.
Read the full breakdown — every affected drug type, severity by severity
Iodine also interacts with antithyroid drugs (used to treat overactive thyroid) and amiodarone (Cordarone), a heart rhythm medication. Antithyroid drugs work by lowering thyroid hormone; iodine can either boost or block that effect depending on your history, making the drug less predictable.
Amiodarone already carries a lot of iodine — stacking this supplement on top risks iodine buildup and thyroid damage. Again, monitoring is essential.
We could not check the other ingredient, kelp, because we hold no interaction data for it. Altogether, these interactions span 7 individual medications.
Use the medication checker below to look up your exact prescriptions before starting.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Sea Kelp 325 mcg?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Sea Kelp 325 mcg interact with 891 drugs. Click any drug to see the details.
2 of the 2 ingredients in Sea Kelp 325 mcg interact with drugs. Each result below shows which ingredient is responsible. Kelp Iodine
AmiodaroneCordarone, Pacerone
How Amiodarone interacts with Sea Kelp 325 mcg — through 2 ingredients. Tap an ingredient for the detail:
KelpCytochrome P450 2c8 (cyp2c8) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, concomitant use of Fucus vesiculosus with CYP2C8 substrates might increase the risk for adverse effects.
Read the full Kelp + Amiodarone interactionIodineAmiodarone (cordarone) Moderate
Interaction Summary
Combining iodine with amiodarone might cause excessively high iodine levels.
Read the full Iodine + Amiodarone interactionCarbimazoleNeo-Mercazole
How Carbimazole interacts with Sea Kelp 325 mcg — through 2 ingredients. Tap an ingredient for the detail:
IodineAntithyroid Drugs Moderate
Interaction Summary
Iodine might alter the effects of antithyroid drugs.
Read the full Iodine + Carbimazole interactionKelpAntithyroid Drugs Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Read the full Kelp + Carbimazole interactionConjugated EstrogensCenestin, Enjuvia, Premarin, Premarin Vaginal Cream
How Conjugated Estrogens interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpCytochrome P450 3a4 (cyp3a4) Substrates, Thyroid Hormone Moderate
Interaction Summary
Theoretically, concomitant use of Fucus vesiculosus with CYP3A4 substrates might increase the risk for adverse effects.
Read the full Kelp + Conjugated Estrogens interactionDesiccated Thyroid ExtractWesthroid, WP Thyroid
How Desiccated Thyroid Extract interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Desiccated Thyroid Extract interactionDesiccated Thyroid Extract (prescription Drug)Nature-Throid, Thyrar
How Desiccated Thyroid Extract (prescription Drug) interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Desiccated Thyroid Extract (prescription Drug) interactionDextrothyroxineCholoxin
How Dextrothyroxine interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Dextrothyroxine interactionHuman Chorionic Gonadotropin (hcg)Pregnyl
How Human Chorionic Gonadotropin (hcg) interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Human Chorionic Gonadotropin (hcg) interactionLevothyroxineEltroxin, Estre, Euthyrox, Levo-T, Levolet, Levothroid +5 more
How Levothyroxine interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Levothyroxine interactionLevothyroxine SodiumErmez, Thyquidity, Tirosint-Sol
How Levothyroxine Sodium interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Levothyroxine Sodium interactionLevothyroxine, LiothyronineArmour Thyroid
How Levothyroxine, Liothyronine interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Levothyroxine, Liothyronine interactionLiothyronineCytomel
How Liothyronine interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Liothyronine interactionLiotrixEuthroid 1, Euthroid 1/2, Euthroid 3
How Liotrix interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Liotrix interactionLiotrix, T4/t3Euthroid 2
How Liotrix, T4/t3 interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Liotrix, T4/t3 interactionLithium Carbonate (prescription Drug)Eskalith, Lithium Carbonate
How Lithium Carbonate (prescription Drug) interacts with Sea Kelp 325 mcg — through 2 ingredients. Tap an ingredient for the detail:
IodineLithium Moderate
Interaction Summary
Combining iodine with lithium might have additive hypothyroid effects.
Read the full Iodine + Lithium Carbonate (prescription Drug) interactionKelpLithium Moderate
Interaction Summary
Concomitant use of Fucus vesiculosus and lithium has resulted in hyperthyroidism.
Read the full Kelp + Lithium Carbonate (prescription Drug) interactionMenotropinsMenopur, Repronex
How Menotropins interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Menotropins interactionMethenamine MandelateMandelamine, Methimazole
How Methenamine Mandelate interacts with Sea Kelp 325 mcg — through 2 ingredients. Tap an ingredient for the detail:
IodineAntithyroid Drugs Moderate
Interaction Summary
Iodine might alter the effects of antithyroid drugs.
Read the full Iodine + Methenamine Mandelate interactionKelpAntithyroid Drugs Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Read the full Kelp + Methenamine Mandelate interactionMethimazoleTapazole
How Methimazole interacts with Sea Kelp 325 mcg — through 2 ingredients. Tap an ingredient for the detail:
KelpAntithyroid Drugs Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Read the full Kelp + Methimazole interactionIodineAntithyroid Drugs Moderate
Interaction Summary
Iodine might alter the effects of antithyroid drugs.
Read the full Iodine + Methimazole interactionOspemifeneOsphena
How Ospemifene interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpCytochrome P450 3a4 (cyp3a4) Substrates, Thyroid Hormone Moderate
Interaction Summary
Theoretically, concomitant use of Fucus vesiculosus with CYP3A4 substrates might increase the risk for adverse effects.
Read the full Kelp + Ospemifene interactionPotassium Iodide (prescription Drug)Thyro-Block
How Potassium Iodide (prescription Drug) interacts with Sea Kelp 325 mcg — through 2 ingredients. Tap an ingredient for the detail:
IodineAntithyroid Drugs Moderate
Interaction Summary
Iodine might alter the effects of antithyroid drugs.
Read the full Iodine + Potassium Iodide (prescription Drug) interactionKelpAntithyroid Drugs Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Read the full Kelp + Potassium Iodide (prescription Drug) interactionPropylthiouracil, PtuPropylthiouracil
How Propylthiouracil, Ptu interacts with Sea Kelp 325 mcg — through 2 ingredients. Tap an ingredient for the detail:
IodineAntithyroid Drugs Moderate
Interaction Summary
Iodine might alter the effects of antithyroid drugs.
Read the full Iodine + Propylthiouracil, Ptu interactionKelpAntithyroid Drugs Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Read the full Kelp + Propylthiouracil, Ptu interactionTestosterone UndecanoateAndriol, Aveed, Jatenzo, Kyzatrex
How Testosterone Undecanoate interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpCytochrome P450 3a4 (cyp3a4) Substrates, Thyroid Hormone Moderate
Interaction Summary
Theoretically, concomitant use of Fucus vesiculosus with CYP3A4 substrates might increase the risk for adverse effects.
Read the full Kelp + Testosterone Undecanoate interactionThyroglobulinProloid
How Thyroglobulin interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Thyroglobulin interactionThyroid HormoneEtwon
How Thyroid Hormone interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Kelp + Thyroid Hormone interactionAdo-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, concomitant use of Fucus vesiculosus with CYP3A4 substrates might increase the risk for adverse effects.
Read the full Kelp + Ado-trastuzumab Emtansine interactionAbciximabReoPro
How Abciximab interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpAnticoagulant/antiplatelet Drugs Minor
Interaction Summary
Theoretically, taking Fucus vesiculosus with antiplatelet or anticoagulant drugs might increase the risk of bruising and bleeding.
Read the full Kelp + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, concomitant use of Fucus vesiculosus with CYP3A4 substrates might increase the risk for adverse effects.
Read the full Kelp + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, concomitant use of Fucus vesiculosus with CYP3A4 substrates might increase the risk for adverse effects.
Read the full Kelp + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, concomitant use of Fucus vesiculosus with CYP3A4 substrates might increase the risk for adverse effects.
Read the full Kelp + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpAnticoagulant/antiplatelet Drugs, Cytochrome P450 2c9 (cyp2c9) Substrates Minor
Interaction Summary
Theoretically, taking Fucus vesiculosus with antiplatelet or anticoagulant drugs might increase the risk of bruising and bleeding.
Read the full Kelp + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Sea Kelp 325 mcg — through 1 ingredient. Tap an ingredient for the detail:
KelpCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, concomitant use of Fucus vesiculosus with CYP3A4 substrates might increase the risk for adverse effects.
Read the full Kelp + Acalabrutinib interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Sea Kelp 325 mcg 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.
Kelp
Amiodarone (Cordarone)
Theoretically, combining Fucus vesiculosus with amiodarone might cause excessively high iodine levels.
Fucus vesiculosus contains high concentrations of iodine. Amiodarone contains 37.3% iodine and can increase iodine levels. Concomitant use might increase the risk of having excessive iodine levels and adversely affecting thyroid function. Monitor thyroid function.
Antithyroid Drugs
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Fucus vesiculosus contains high concentrations of iodine. Iodine in high doses has been reported to cause both hyperthyroidism and hypothyroidism, depending on the individual's past medical history. Taking Fucus vesiculosus while using antithyroid drugs could alter the effects of the antithyroid drugs.
Lithium
Concomitant use of Fucus vesiculosus and lithium has resulted in hyperthyroidism.
There is a case of hyperthyroidism occurring in a patient taking Fucus vesiculosus and lithium. Monitor thyroid hormones closely in patients taking lithium and Fucus vesiculosus concomitantly.
Thyroid Hormone
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Fucus vesiculosus contains high concentrations of iodine. Iodine in high doses has been reported to cause both hyperthyroidism and hypothyroidism, depending on the individual's past medical history. Taking Fucus vesiculosus while using thyroid hormone could alter the effects of thyroid hormone.
Anticoagulant/Antiplatelet Drugs
Theoretically, taking Fucus vesiculosus with antiplatelet or anticoagulant drugs might increase the risk of bruising and bleeding.
In vitro evidence suggests that a constituent of Fucus vesiculosus, known as fucoidan, has anticoagulant effects. However, in clinical research, fucoidan does not seem to have significant anticoagulant activity when taken orally, possibly due to poor absorption.
Cytochrome P450 2C8 (Cyp2C8) Substrates
Theoretically, concomitant use of Fucus vesiculosus with CYP2C8 substrates might increase the risk for adverse effects.
In vitro research shows that fucoidan, a constituent of Fucus vesiculosus, inhibits CYP2C8. This interaction has not been reported in humans.
Cytochrome P450 2C9 (Cyp2C9) Substrates
Theoretically, concomitant use of Fucus vesiculosus with CYP2C9 substrates might increase the risk for adverse effects.
In vitro research shows that fucoidan, a constituent of Fucus vesiculosus, inhibits CYP2C9. This interaction has not been reported in humans.
Cytochrome P450 2D6 (Cyp2D6) Substrates
Theoretically, concomitant use of Fucus vesiculosus with CYP2D6 substrates might alter the effects of these substrates.
In vitro research shows that fucoidan, a constituent of Fucus vesiculosus, both inhibits and induces CYP2D6. This interaction has not been reported in humans.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, concomitant use of Fucus vesiculosus with CYP3A4 substrates might increase the risk for adverse effects.
In vitro research shows that fucoidan, a constituent of Fucus vesiculosus, inhibits CYP3A4. This interaction has not been reported in humans.
Iodine
Amiodarone (Cordarone)
Combining iodine with amiodarone might cause excessively high iodine levels.
Amiodarone contains 37.3% iodine and can increase iodine levels. Concomitant use with iodine might increase the risk of having excessive iodine levels and adversely affecting thyroid function. Monitor thyroid function.
Antithyroid Drugs
Iodine might alter the effects of antithyroid drugs.
Iodine in high doses has been reported to cause both hyperthyroidism and hypothyroidism, depending on the individual's past medical history. Taking iodine while using antithyroid drugs could alter the effects of the antithyroid drugs.
Lithium
Combining iodine with lithium might have additive hypothyroid effects.
Lithium can inhibit thyroid function. Several case reports suggest that concomitant use of lithium and potassium iodide can reduce thyroid function in otherwise healthy adults. Monitor thyroid function.
Brand information
Manufacturer and brand details for Sea Kelp 325 mcg, from the product label.
NusaPure
See all NusaPure products- Name
- Gmax Central, LLC
- Street Address
- 500 Westover Dr. #92909
- City
- Sanford
- State
- NC
- ZipCode
- 27330
Sea Kelp 325 mcg by NusaPure: Common Questions
Does Sea Kelp 325 mcg by NusaPure interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Will this help my thyroid?
Can I take this if I'm pregnant?
Is iodine safe to take long-term?
What are the side effects?
What is kelp and why is it in here?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Sea Kelp 325 mcg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Sea Kelp 325 mcg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Iodine
Interacts with 7 drugsIodine is an essential mineral your body needs to make thyroid hormones, and most people get enough from iodized salt, dairy, and seafood. Supplements help when you are truly deficient, but...
Read the full Iodine monograph → Herb & supplement monographFucus Vesiculosus
Interacts with 891 drugsFucus vesiculosus (bladderwrack) is a brown seaweed rich in iodine that has been used traditionally for thyroid concerns, weight, and skin. There is little solid human evidence to support mo...
Read the full Fucus Vesiculosus monograph →Sources & How We Checked
Sea Kelp 325 mcg'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 41 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.
Iodine 26 references
- McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
- Goodman GA, Rall TW, Nies AS, Taylor P. The Pharmacological Basis of Therapeutics, 9th ed.
- Ghent WR, Eskin BA, Low DA, Hill LP. Iodine replacement in fibrocystic disease of the breast. Can J Surg 1993;36:453-60.
- Potassium iodide for nuclear exposure. Pharmacist's Letter/Prescriber's Letter 2001;17(12):171214.
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
- Cabezas C, Bustamante B, Holgado W, Begue RE. Treatment of cutaneous sporotrichosis with one daily dose of potassium iodide. Pediatr Infect Dis J 1996;15:352-4. PubMed
- Sterling JB, Heymann WR. Potassium iodide in dermatology: a 19th century drug for the 21st century-uses, pharmacology, adverse effects, and contraindications. J Am Acad Dermatol 2000;43:691-7. PubMed
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