Sea-Iodine 1000 mcg Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Sea-Iodine 1000 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-Iodine 1000 mcg is a dietary supplement by Life Extension with 1 active ingredient. 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 Iodine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Sea-Iodine 1000 mcg by Life Extension
Ask about any prescription or over-the-counter medication and we check it for interactions with Sea-Iodine 1000 mcg by Life Extension — 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-Iodine 1000 mcg by Life Extension
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
Low disclosure
Sea-Iodine 1000 mcg contains 3 active ingredients. The main source of iodine is potassium iodide, a salt form your body readily absorbs.
The product also includes bladderwrack extracts and organic kelp — both sea plants rich in naturally occurring iodine — to give you iodine from multiple sources. The product is rounded out with inactive ingredients like microcrystalline cellulose and vegetable cellulose that help form the capsule.
Does it work?
Strong evidence
Potassium iodide is likely effective for preventing iodine deficiency and for protecting the thyroid after radiation exposure. It's also possibly effective for oral mucositis (mouth sores) and periodontitis (gum disease).
For bladderwrack extracts, the evidence we hold doesn't establish it works reliably for aging skin, heart health, constipation, diarrhea, or indigestion — those ratings are marked as insufficient.
How safe is it?
Well-documented data
Potassium iodide is well tolerated in normal dietary amounts, but high doses can cause thyroid problems like goiter, hypothyroidism (low thyroid function), or hyperthyroidism (high thyroid function). You may also notice a metallic taste, nausea, headache, or abdominal upset.
Rare allergic reactions including angioedema and anaphylaxis are possible, and chronic high-dose use has caused acneform skin lesions. Bladderwrack carries its own iodine load and carries a safety caution because its iodine content is variable and the plant may concentrate heavy metals from seawater.
For pregnancy and breastfeeding, the facts show potassium iodide rated as both likely safe AND possibly unsafe — meaning adequate iodine matters in pregnancy, but high doses don't. Bladderwrack is rated possibly unsafe in pregnancy and should be avoided while breastfeeding because excess iodine passes into breast milk and may disrupt the baby's thyroid.
Talk to your doctor about what amount is right for you during these times.
Meds to double-check
Moderate interaction found
Before taking this product, double-check with your doctor or pharmacist if you're on lithium, antithyroid drugs (for overactive thyroid), amiodarone (Cordarone), thyroid hormone replacement, blood thinners (anticoagulants or antiplatelet drugs), or any medications broken down by your liver through CYP2D6, CYP2C9, or CYP3A4 pathways — these are Moderate to Minor interactions that need monitoring.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This product is built for iodine deficiency and radiation protection. If you take lithium, any thyroid medication, amiodarone, antithyroid drugs, or blood thinners, you'll need to confirm it's okay with your doctor or pharmacist first.
Even if you don't take those, run your full medication list through the checker before starting — and discuss timing and dose with your healthcare provider, especially if you're pregnant, breastfeeding, or 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 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Aug 23, 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
General information
Key facts about Sea-Iodine 1000 mcg, straight from the product label.
| Brand | Life Extension |
|---|---|
| Barcode (UPC) | 737870174066 |
| Net contents | 60 Vegetarian Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Aug 23, 2020 |
| DSLD ID | 232336 |
| Product type | Botanical With Nutrients |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other |
| Intended target group(s) | Adult (18 - 50 Years), Gluten 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-Iodine 1000 mcg by Life Extension, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Iodine | 1000 mcg | 667% |
| Potassium Iodide | 0 NP | -- |
| organic Kelp | 0 NP | -- |
| Sea-Iodine Complex Blend | 0 NP | -- |
| Bladderwrack extracts | 0 NP | -- |
Other ingredients: Microcrystalline Cellulose, Vegetable Cellulose, Silica, Stearic Acid
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.
Suggested/Recommended/Usage/Directions
Read the entire label and follow the directions carefully prior to use. Directions: Take one (1) capsule daily, or as recommended by a healthcare practitioner.
Precautions
Caution: If you have a thyroid condition or are taking antithyroid medications, do not use without consulting your healthcare practitioner.
Warnings: Keep out of reach of children.
Do not exceed recommended dose. Do not purchase if outer seal is broken or damaged.
When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
To report a serious adverse event or obtain product information, contact 1-866-280-2852.
Storage
Store tightly closed in a cool, dry place.
Formulation
Gluten free
Non GMO LE Certified
Seals/Symbols
Non GMO LE Certified
Formula
Iodine with sea plant complex
FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Sea-Iodine 1000 mcg by Life Extension 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-Iodine 1000 mcg by Life Extension
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Vegetarian Capsule(s) Dosage formCapsule Amounts shown are per serving.
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 & interactions- › Sea-Iodine Complex Blend
Other (inactive) ingredients: Microcrystalline Cellulose, Vegetable Cellulose, Silica, Stearic Acid. These complete the product’s ingredient list but are not active constituents.
Sea-Iodine 1000 mcg by Life Extension Drug Interactions
HelloPharmacist Interaction Report
Sea-Iodine 1000 mcg by Life Extension contains iodine through its potassium iodide and bladderwrack extracts, and both ingredients interact with several medication types.
The most serious concern is a Moderate interaction with lithium — iodine can add to lithium's effect on the thyroid, potentially lowering thyroid function, which needs monitoring.
Read the full breakdown — every affected drug type, severity by severity
You'll also want to check before combining this product with antithyroid drugs (used to treat overactive thyroid), amiodarone (Cordarone, a heart rhythm medication), or thyroid hormone replacement. Iodine can shift your thyroid function either way depending on your history, and amiodarone already carries a lot of iodine itself — adding more could push levels too high.
The bladderwrack extracts carry the same Moderate-level concerns with these three drug types, plus a Moderate risk with thyroid hormone.
Bladderwrack also shows Minor interactions with blood thinners (anticoagulants and antiplatelet drugs) and with medications broken down by your liver through the CYP2D6, CYP2C9, and CYP3A4 pathways — though these haven't been reported in humans yet, they're flagged from lab studies. We could not check organic kelp for interactions.
Altogether, these interactions span 892 individual medications.
Before you start this product, use the interaction checker below with your exact prescriptions, and talk to your doctor or pharmacist — especially if you take any thyroid or heart medication.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Sea-Iodine 1000 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-Iodine 1000 mcg interact with 891 drugs. Click any drug to see the details.
1 of the 1 ingredient in Sea-Iodine 1000 mcg interact with drugs. Each result below shows which ingredient is responsible. Iodine
AmiodaroneCordarone, Pacerone
How Amiodarone interacts with Sea-Iodine 1000 mcg — through 2 ingredients. Tap an ingredient for the detail:
Bladderwrack ExtractsCytochrome 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 Bladderwrack Extracts + Amiodarone interactionPotassium IodideAmiodarone (cordarone) Moderate
Interaction Summary
Combining iodine with amiodarone might cause excessively high iodine levels.
Read the full Potassium Iodide + Amiodarone interactionCarbimazoleNeo-Mercazole
How Carbimazole interacts with Sea-Iodine 1000 mcg — through 2 ingredients. Tap an ingredient for the detail:
Potassium IodideAntithyroid Drugs Moderate
Interaction Summary
Iodine might alter the effects of antithyroid drugs.
Read the full Potassium Iodide + Carbimazole interactionBladderwrack ExtractsAntithyroid Drugs Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Read the full Bladderwrack Extracts + Carbimazole interactionConjugated EstrogensCenestin, Enjuvia, Premarin, Premarin Vaginal Cream
How Conjugated Estrogens interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsCytochrome 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 Bladderwrack Extracts + Conjugated Estrogens interactionDesiccated Thyroid ExtractWesthroid, WP Thyroid
How Desiccated Thyroid Extract interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Desiccated Thyroid Extract interactionDesiccated Thyroid Extract (prescription Drug)Nature-Throid, Thyrar
How Desiccated Thyroid Extract (prescription Drug) interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Desiccated Thyroid Extract (prescription Drug) interactionDextrothyroxineCholoxin
How Dextrothyroxine interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Dextrothyroxine interactionHuman Chorionic Gonadotropin (hcg)Pregnyl
How Human Chorionic Gonadotropin (hcg) interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Human Chorionic Gonadotropin (hcg) interactionLevothyroxineEltroxin, Estre, Euthyrox, Levo-T, Levolet, Levothroid +5 more
How Levothyroxine interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Levothyroxine interactionLevothyroxine SodiumErmez, Thyquidity, Tirosint-Sol
How Levothyroxine Sodium interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Levothyroxine Sodium interactionLevothyroxine, LiothyronineArmour Thyroid
How Levothyroxine, Liothyronine interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Levothyroxine, Liothyronine interactionLiothyronineCytomel
How Liothyronine interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Liothyronine interactionLiotrixEuthroid 1, Euthroid 1/2, Euthroid 3
How Liotrix interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Liotrix interactionLiotrix, T4/t3Euthroid 2
How Liotrix, T4/t3 interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Liotrix, T4/t3 interactionLithium Carbonate (prescription Drug)Eskalith, Lithium Carbonate
How Lithium Carbonate (prescription Drug) interacts with Sea-Iodine 1000 mcg — through 2 ingredients. Tap an ingredient for the detail:
Potassium IodideLithium Moderate
Interaction Summary
Combining iodine with lithium might have additive hypothyroid effects.
Read the full Potassium Iodide + Lithium Carbonate (prescription Drug) interactionBladderwrack ExtractsLithium Moderate
Interaction Summary
Concomitant use of Fucus vesiculosus and lithium has resulted in hyperthyroidism.
Read the full Bladderwrack Extracts + Lithium Carbonate (prescription Drug) interactionMenotropinsMenopur, Repronex
How Menotropins interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Menotropins interactionMethenamine MandelateMandelamine, Methimazole
How Methenamine Mandelate interacts with Sea-Iodine 1000 mcg — through 2 ingredients. Tap an ingredient for the detail:
Potassium IodideAntithyroid Drugs Moderate
Interaction Summary
Iodine might alter the effects of antithyroid drugs.
Read the full Potassium Iodide + Methenamine Mandelate interactionBladderwrack ExtractsAntithyroid Drugs Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Read the full Bladderwrack Extracts + Methenamine Mandelate interactionMethimazoleTapazole
How Methimazole interacts with Sea-Iodine 1000 mcg — through 2 ingredients. Tap an ingredient for the detail:
Bladderwrack ExtractsAntithyroid Drugs Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Read the full Bladderwrack Extracts + Methimazole interactionPotassium IodideAntithyroid Drugs Moderate
Interaction Summary
Iodine might alter the effects of antithyroid drugs.
Read the full Potassium Iodide + Methimazole interactionOspemifeneOsphena
How Ospemifene interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsCytochrome 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 Bladderwrack Extracts + Ospemifene interactionPotassium Iodide (prescription Drug)Thyro-Block
How Potassium Iodide (prescription Drug) interacts with Sea-Iodine 1000 mcg — through 2 ingredients. Tap an ingredient for the detail:
Potassium IodideAntithyroid Drugs Moderate
Interaction Summary
Iodine might alter the effects of antithyroid drugs.
Read the full Potassium Iodide + Potassium Iodide (prescription Drug) interactionBladderwrack ExtractsAntithyroid Drugs Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Read the full Bladderwrack Extracts + Potassium Iodide (prescription Drug) interactionPropylthiouracil, PtuPropylthiouracil
How Propylthiouracil, Ptu interacts with Sea-Iodine 1000 mcg — through 2 ingredients. Tap an ingredient for the detail:
Potassium IodideAntithyroid Drugs Moderate
Interaction Summary
Iodine might alter the effects of antithyroid drugs.
Read the full Potassium Iodide + Propylthiouracil, Ptu interactionBladderwrack ExtractsAntithyroid Drugs Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of antithyroid drugs.
Read the full Bladderwrack Extracts + Propylthiouracil, Ptu interactionTestosterone UndecanoateAndriol, Aveed, Jatenzo, Kyzatrex
How Testosterone Undecanoate interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsCytochrome 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 Bladderwrack Extracts + Testosterone Undecanoate interactionThyroglobulinProloid
How Thyroglobulin interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Thyroglobulin interactionThyroid HormoneEtwon
How Thyroid Hormone interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsThyroid Hormone Moderate
Interaction Summary
Due to its iodine content, Fucus vesiculosus might alter the effects of thyroid hormone.
Read the full Bladderwrack Extracts + Thyroid Hormone interactionAdo-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsCytochrome 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 Bladderwrack Extracts + Ado-trastuzumab Emtansine interactionAbciximabReoPro
How Abciximab interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsAnticoagulant/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 Bladderwrack Extracts + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsCytochrome 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 Bladderwrack Extracts + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsCytochrome 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 Bladderwrack Extracts + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsCytochrome 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 Bladderwrack Extracts + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsAnticoagulant/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 Bladderwrack Extracts + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Sea-Iodine 1000 mcg — through 1 ingredient. Tap an ingredient for the detail:
Bladderwrack ExtractsCytochrome 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 Bladderwrack Extracts + Acalabrutinib interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Sea-Iodine 1000 mcg 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.
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-Iodine 1000 mcg, from the product label.
Life Extension
See all Life Extension products- Name
- Quality Supplements and Vitamins, Inc.
- City
- Ft. Lauderdale
- State
- FL
- ZipCode
- 33309
- Phone Number
- 1-866-280-2852
- Web Address
- LifeExtension.com
Sea-Iodine 1000 mcg by Life Extension: Common Questions
Does Sea-Iodine 1000 mcg by Life Extension interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What is this iodine product actually for?
Why does this product have both potassium iodide and kelp if they're both iodine?
Can I take this if I'm pregnant or breastfeeding?
What side effects might I notice?
Is this safe if I have a thyroid condition?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Sea-Iodine 1000 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-Iodine 1000 mcg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Sea-Iodine 1000 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
- Yarrington CD, Pearce EN. Dietary iodine in pregnancy and postpartum. Clin Obstet Gynecol 2011;54:459-70. PubMed
- Goel, S., Mandhani, A., Srivastava, A., Kapoor, R., Gogoi, S., Kumar, A., and Bhandari, M. Is povidone iodine an alternative to silver nitrate for renal pelvic instillation sclerotherapy in chyluria? BJU.Int 2004;94(7):1082-1085. PubMed
- Teng, W., Shan, Z., Teng, X., Guan, H., Li, Y., Teng, D., Jin, Y., Yu, X., Fan, C., Chong, W., Yang, F., Dai, H., Yu, Y., Li, J., Chen, Y., Zhao, D., Shi, X., Hu, F., Mao, J., Gu, X., Yang, R., Tong, Y., Wang, W., Gao, T., and Li, C. Effect of iodine int
- Crawford, B. A., Cowell, C. T., Emder, P. J., Learoyd, D. L., Chua, E. L., Sinn, J., and Jack, M. M. Iodine toxicity from soy milk and seaweed ingestion is associated with serious thyroid dysfunction. Med J Aust. 10-4-2010;193(7):413-415. PubMed
- Ohkuma, M. Molluscum contagiosum treated with iodine solution and salicylic acid plaster. Int J Dermatol. 1990;29(6):443-445. PubMed
- Connelly KJ, Boston BA, Pearce EN, Sesser D, Snyder D, Braverman LE, Pino S, LaFranchi SH. Congenital hypothyroidism caused by excess prenatal maternal iodine ingestion. J Pediatr. 2012 Oct;161(4):760-2. PubMed
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