Drug & supplement interaction

Ecklonia Cava + Sulfacetamide

Sulfacetamide brand name: AK-Sulf.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Ecklonia Cava and Sulfacetamide in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

Ecklonia Cava and Sulfacetamide

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Sulfacetamide and Ecklonia Cava in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for Ecklonia Cava at all — not against Sulfacetamide, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Ecklonia Cava safety at a glance

Ecklonia Cava overall Use caution Generally taken short-term in studies, but long-term safety and iodine content are not well established.
Pregnancy Avoid Not enough safety data, and seaweed can carry high iodine levels, so it is best avoided.
Breastfeeding Avoid No reliable safety data during breastfeeding, so avoid use.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Sulfacetamide and Ecklonia Cava? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Ecklonia Cava Itself Has Been Linked To

This is not an interaction — nothing below involves Sulfacetamide. It is the side-effect record for Ecklonia Cava on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Ecklonia Cava, this list is the first place to look.

  • Hair loss Additional detail

    “Orally, alopecia has been reported by one person in a clinical trial.”

    Ecklonia Cava · Natural Medicines adverse-effect record, reported in alopecia.

    1 source cited
    1. 106335. Lee DH, Park MY, Shim BJ, et al. Effects of Ecklonia cava polyphenol in individuals with hypercholesterolemia: a pilot study. J Med Food. 2012;15(11):1038-44.
  • Stomach upset / Diarrhea / Nausea Additional detail

    “Orally, nausea, dyspepsia, and diarrhea have been reported by one person each in a clinical trial.”

    Ecklonia Cava · Natural Medicines adverse-effect record, reported in diarrhea.

    1 source cited
    1. 106335. Lee DH, Park MY, Shim BJ, et al. Effects of Ecklonia cava polyphenol in individuals with hypercholesterolemia: a pilot study. J Med Food. 2012;15(11):1038-44.

Everything above comes from the Natural Medicines adverse-effect record for Ecklonia Cava — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Sulfacetamide’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Sulfacetamide column appears here.

Everything else you take

See Every Supplement That Interacts With Sulfacetamide

This page covers Ecklonia Cava only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Sulfacetamide page lists 20 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Alfalfa (moderate), Angelica Archangelica (moderate), Arrach (moderate), Bergamot (moderate) and Bishop's Weed (moderate).

By severity: 19 moderate · 1 minor.

From our pharmacist’s overview on the Sulfacetamide page

“Every one of the 20 supplement interactions on file for sulfacetamide (AK-Sulf), a sulfa antibiotic used in eye drops and skin preparations, comes down to the same issue, added sun sensitivity. Sulfa drugs can make skin react more strongly to sunlight, and each ingredient below, St.”

Reviewed by 2 · Jul 18, 2026

Open the Sulfacetamide interaction page

One more smart check

Taking Ecklonia Cava as Part of a Dietary Supplement Product? Check It for Interactions

We hold 63 real supplement products containing Ecklonia Cava, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Ecklonia Cava. Even though Ecklonia Cava itself has no known interaction with Sulfacetamide, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Ecklonia Cava and Sulfacetamide Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Ecklonia Cava
Steady interest

#1,115 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Sulfacetamide
Steady interest

#2,072 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Ecklonia Cava reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Ecklonia Cava and Sulfacetamide records this page draws on were last updated July 10, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Ecklonia Cava

What is Ecklonia Cava?

  • Antioxidant support
  • Heart and circulation health
  • Blood sugar support
  • Inflammation
  • Allergy symptoms
  • Erectile or sexual function

Ecklonia cava is an edible brown seaweed rich in plant compounds called phlorotannins that are studied as antioxidants. Early human and lab research hints at possible benefits for blood vessels, blood sugar, and inflammation, but the evidence is limited and far from proven. Because it contains iodine and has not been well studied for long-term safety, talk with your pharmacist or doctor before using it.

Ecklonia cava · Lessoniaceae · Whole brown seaweed (thallus), used to make extracts · Capsules, tablets, powders, and standardized extracts (often sold under branded names)

An interaction check asks whether these two react with each other — it does not ask whether Ecklonia Cava is a good idea for someone in your situation. Here is what our Ecklonia Cava record says about it on its own.

Ecklonia Cava: dosing

There is no official or standardized dose of Ecklonia cava. Studies have used different branded extracts at different amounts, so there is no single recommended dose for the general public.If you choose to use it, follow the directions on the product label and do not exceed the suggested amount. A pharmacist can help you review the product and decide whether it is appropriate for you, especially if you take other medicines or have a health condition.

From our Ecklonia Cava monograph — the full record covers uses, side effects and every documented interaction.

Read the full Ecklonia Cava monograph & all interactions
Medication

About Sulfacetamide Ophthalmic

What Is Sulfacetamide Ophthalmic Used For?

Brand name: AK-Sulf

Sulfacetamide Sodium Ophthalmic Solution USP, 10% is used to treat conjunctivitis (pink eye) and other superficial infections on the surface of the eye caused by susceptible bacteria. These include bacteria such as Staphylococcus aureus, Streptococcus pneumoniae, Haemophilus influenzae, Klebsiella species, and others.

It is also used alongside systemic (oral or injectable) sulfonamide antibiotic therapy in the treatment of trachoma, a serious bacterial eye infection. It is important to note that this medication does not work against all types of bacteria — it does not provide adequate coverage against Neisseria species, Serratia marcescens, or Pseudomonas aeruginosa, and some staph bacteria are fully resistant to it.

Most-Reported Side Effects for Sulfacetamide

From FAERS, the FDA’s public side-effect reporting system (736 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Drug hypersensitivity 68 reports
Nausea 45 reports
Headache 36 reports
Dyspnea 35 reports
Rash 35 reports
See full Sulfacetamide Ophthalmic drug information
Keep checking

Other Drugs & Ecklonia Cava

Browse every other medication we’ve checked against Ecklonia Cava — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
No interaction 2,829 drugs checked — show the list
Evidence & sources

Ecklonia Cava References

The 1 references that drive our Ecklonia Cava monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Lee DH, Park MY, Shim BJ, et al. Effects of Ecklonia cava polyphenol in individuals with hypercholesterolemia: a pilot study. J Med Food. 2012;15(11):1038-44.

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Ecklonia Cava and Sulfacetamide Together: Common Questions

Is it safe to take Ecklonia Cava with Sulfacetamide?
We do not list a known interaction between Ecklonia Cava and Sulfacetamide. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Does Sulfacetamide interact with any supplements?
Yes. Sulfacetamide has documented interactions with 20 supplements in our database — Ecklonia Cava is not one of them. The Sulfacetamide interaction page linked on this page lists every one, ranked by severity.

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

Still Have a Question About Sulfacetamide and Ecklonia Cava?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.