Medication interaction hub

What Supplements Interact with Sulfamethizole?

Sulfamethizole brand name: Thiosulfil Forte. Every interaction below applies to the brands too.

44 Interactions 1 Major 33 Moderate 10 Minor
Curated & coded by · Clinical Pharmacist · Updated September 23, 2026

Drug–supplement interaction data sourced from Natural Medicines Pro, the licensed clinical database from TRC Healthcare / Therapeutic Research, with additional analysis by the HelloPharmacist Pharmacist Team. Our sources · Editorial policy

What is this page for?

One answer, for one medication: what supplements and herbal products interact with Sulfamethizole? Every vitamin, herb, and supplement ingredient we’ve checked against it is on this page, ranked by severity, each linking to the full report for that exact pair.

This page covers supplement interactions only — to check Sulfamethizole against your other medications, use the drug–drug interaction checker. Educational information from our licensed clinical databases, not medical advice. Our editorial policy

HelloPharmacist Bottom Line
Our Pharmacist Explains
What is this? The interaction data in the HelloPharmacist supplement database is licensed from Natural Medicines Pro by TRC Healthcare (Therapeutic Research). HelloPharmacist pharmacists often add our own analysis and context on top of that licensed data — such as this Bottom Line summary and the notes on individual interaction pages — and any such commentary is noted as ours.

Sulfamethizole (Thiosulfil Forte) is a sulfa antibiotic most often prescribed for urinary tract infections, and because an infection left undertreated can climb toward the kidneys, the 44 supplement interactions on file deserve genuine attention. The single major-rated one is activated charcoal, which soaks up the antibiotic in the gut and cuts how much reaches your bloodstream. Most of the rest fall into two patterns: bulky or charcoal-like products that blunt absorption of oral medicines, and probiotics, from acidophilus to fermented milk, which the antibiotic simply kills off, wasting the supplement rather than harming you.

Ten of the 44 entries rate only minor and 33 moderate, and timing solves nearly all of them. Space probiotics and absorption blockers well apart from each dose, and skip activated charcoal unless your prescriber signs off, since an antibiotic that never fully absorbs cannot clear the infection.

— , Clinical Pharmacist · July 18, 2026

Major 1 Moderate 33 Minor 10 No known interaction 1,408

This box checks one ingredient at a time (like turmeric or magnesium). Taking a supplement product with a whole label of ingredients? Search the product instead — we check every ingredient on it ↓

Top Ingredient Interactions

Sulfamethizole: Top Interactions at a Glance

The most significant Sulfamethizole supplement & herbal interactions, colored by severity. Tap any ingredient to open the full report for that pair.

Showing the 12 highest-ranked of 44 interacting ingredients — plus 1,408 more checked with no known interaction. See the complete ranked list.

Start here

The Major Interactions to Know About

The most clinically significant Sulfamethizole + supplement combinations in our database, best-documented first. Open any card for the full report.

Major Likelihood Probable Activated Charcoal + Sulfamethizolei

Activated charcoal reduces systemic exposure to many drugs, including those that undergo enterohepatic recirculation, regardless of the route of administration.

Read the full interaction
The complete list

Every Supplement Checked Against Sulfamethizole

All 1,452 ingredients in our database, ranked by severity — 44 with a Sulfamethizole interaction on file and 1,408 with none found. Filter by severity or search any ingredient; hover the for what each ingredient is.

Looking for an interaction with a specific supplement product? Search products instead ↓

Straight answers

Can You Take It With Sulfamethizole?

One-line answers, one card per combination — scroll through today’s 20 and tap any card for the full report. A different set rotates in daily until every combination has had its turn.

Can you take Lactobacillus Helveticus with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.

Full Lactobacillus Helveticus + Sulfamethizole answer

Can you take Lactobacillus Jensenii with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking Lactobacillus jensenii with antibiotic drugs might decrease the effectiveness of L.

Full Lactobacillus Jensenii + Sulfamethizole answer

Can you take Lactobacillus Johnsonii with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking Lactobacillus johnsonii with antibiotic drugs might decrease the effectiveness of L.

Full Lactobacillus Johnsonii + Sulfamethizole answer

Can you take Latilactobacillus Sakei with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking Latilactobacillus sakei with antibiotic drugs might decrease the effectiveness of L.

Full Latilactobacillus Sakei + Sulfamethizole answer

Can you take Levilactobacillus Brevis with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking Levilactobacillus brevis with antibiotic drugs might decrease the effectiveness of L.

Full Levilactobacillus Brevis + Sulfamethizole answer

Can you take Ligilactobacillus Salivarius with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking Ligilactobacillus salivarius with antibiotic drugs might decrease the effectiveness of L.

Full Ligilactobacillus Salivarius + Sulfamethizole answer

Can you take Limosilactobacillus Fermentum with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking Limosilactobacillus fermentum with antibiotic drugs might decrease the effectiveness of L.

Full Limosilactobacillus Fermentum + Sulfamethizole answer

Can you take Limosilactobacillus Reuteri with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking Limosilactobacillus reuteri with antibiotic drugs might decrease the effectiveness of L.

Full Limosilactobacillus Reuteri + Sulfamethizole answer

Can you take Probiotics with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking antibiotic drugs with certain probiotics might decrease the effectiveness of probiotics.

Full Probiotics + Sulfamethizole answer

Can you take Flaxseed with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, antibiotics might interfere with the metabolism of flaxseed constituents, which could potentially alter the effects of flaxse...

Full Flaxseed + Sulfamethizole answer

Can you take Guar Gum with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Guar gum might reduce the absorption of some oral drugs, potentially decreasing their effectiveness.

Full Guar Gum + Sulfamethizole answer

Can you take Gum Arabic with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, gum arabic can alter the absorption of oral drugs due to its fiber content.

Full Gum Arabic + Sulfamethizole answer

Can you take Slippery Elm with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.

Full Slippery Elm + Sulfamethizole answer

Can you take Tragacanth with Sulfamethizole?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, tragacanth might alter absorption of oral drugs.

Full Tragacanth + Sulfamethizole answer

Can you take Thyroid Extract with Sulfamethizole?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Food and medications can interfere with thyroid hormone absorption.

Full Thyroid Extract + Sulfamethizole answer

Can you take Agar with Sulfamethizole?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Agar forms a thick gel, which may disrupt the absorption of nutrients and medications.

Full Agar + Sulfamethizole answer

Can you take Algin with Sulfamethizole?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, algin can alter the absorption of oral drugs.

Full Algin + Sulfamethizole answer

Can you take Black Psyllium with Sulfamethizole?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.

Full Black Psyllium + Sulfamethizole answer

Can you take Blond Psyllium with Sulfamethizole?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.

Full Blond Psyllium + Sulfamethizole answer

Can you take Carob with Sulfamethizole?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, carob might also impair the absorption of oral drugs.

Full Carob + Sulfamethizole answer
Read the list like a pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • Possible. Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each entry links to a full report with the clinical detail, likelihood, evidence level, and citations for that exact combination.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

How Does Our Interaction Checker Work?

Behind every verdict on this page is a category system. Our source database doesn’t document supplement interactions drug-by-drug — it documents them against groups of medications that behave the same way (for example, “drugs processed by the CYP3A4 liver enzyme” or “blood-thinning medications”).

So the check works in three steps: (1) Sulfamethizole is classified into the pharmacology categories it belongs to, (2) every supplement interaction documented against any of those categories is inherited by Sulfamethizole, and (3) each ingredient keeps its own severity, likelihood, and evidence grades from the underlying record. That’s why one supplement can carry several records for one drug — it may interact through more than one category.

Sulfamethizole sits in 2 interaction categories. Open any one to see what the group means:

Antibiotic Drugs 27 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

27 of the supplement ingredients on this page reach Sulfamethizole through this category.

Oral Drugs 17 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

17 of the supplement ingredients on this page reach Sulfamethizole through this category.

Related: does Sulfamethizole deplete any nutrients?

Sulfamethizole has 7 reported nutrient associations in the research literature — see the Sulfamethizole nutrient depletion report.

Check a real product

Take a Supplement Product? Check the Whole Bottle Against Sulfamethizole

Most supplements are combination products — and the interaction may come from an ingredient you didn’t buy it for. Search any product below (or scan its label) and we’ll check every ingredient on it against Sulfamethizole.

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Pharmacist Counseling Corner

Sulfamethizole & Supplements: Common Questions

What supplements interact with Sulfamethizole?
In our interaction database, 44 supplement and herbal ingredients have an interaction with Sulfamethizole on file — 1 rated major, 33 moderate, and 10 minor. That number sounds scarier than it is: severity matters far more than the count, which is why the list on this page is ranked instead of alphabetical. Start at the top. The highest-ranked right now: Activated Charcoal, Bacillus Coagulans, Bacillus Subtilis.
Which Sulfamethizole supplement interactions are the most serious?
Focus on the major group: Activated Charcoal. A major rating means the combination can be clinically significant, not that harm is guaranteed — but it's exactly the kind of thing to run past your pharmacist before your next dose, not after. Jump to the ranked list.
Can I take vitamins or supplements while on Sulfamethizole?
That depends entirely on which supplement. The honest answer for Sulfamethizole is in the ranked list above — and if what you take is a combination product with a dozen ingredients, don't check them one by one: photograph the label with our scanner and we'll check the whole thing at once. Try the label scanner or the interaction checker.
Do brands like Thiosulfil Forte have the same supplement interactions as Sulfamethizole?
Yes — Thiosulfil Forte all contain Sulfamethizole, so everything on this page applies to them equally. Interactions belong to the active drug, never to the brand on the box; the same is true of generics.
Where do these interaction ratings come from?
Every rating comes from the Natural Medicines database — the same evidence-graded reference pharmacists and hospitals use — and each interaction carries three separate grades: severity (how bad it can be), likelihood (how well it's documented in studies and case reports), and an evidence level. Our pharmacists review the content; we never let an AI decide an interaction. See how to read the ratings and our editorial policy.
Does Sulfamethizole deplete any vitamins or nutrients?
It might — Sulfamethizole has 7 reported nutrient-depletion associations in the research literature, which is a different question from interactions: instead of a supplement changing the drug, the drug may lower a nutrient over time. See the Sulfamethizole nutrient depletion report for the specifics and what to discuss with your pharmacist.
What about Sulfamethizole and my other medications?
This page covers Sulfamethizole against supplements and herbal ingredients. Checking Sulfamethizole against your other prescription or OTC medications is a different tool — our drug interaction checker covers that side. Head to the drug–drug interaction checker.

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

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Sourcing

Where This Data Comes From — and Why You Can Trust It

🧪 Licensed clinical database

Every interaction verdict on this page comes from Natural Medicines Pro (TRC Healthcare / Therapeutic Research) — the same evidence-graded reference used by pharmacists and hospitals. We license this data directly; we do not scrape it, and no AI invents an interaction.

🧑‍⚕️ Pharmacist review

This page is curated and coded by , Clinical Pharmacist, with additional analysis by the HelloPharmacist Pharmacist Team. Editorial commentary is ours; the licensed interaction records are shown as sourced.

🔄 Kept current

Our interaction database refreshes on a weekly cycle, and this page re-checks the live database every time it’s rebuilt — what you see reflects the database as of September 23, 2026.

🔍 Full transparency

How every dataset on this site is sourced, licensed, and updated is documented publicly: our data sources · editorial policy · how we use AI.

Educational information, not medical advice. An interaction being on file does not mean it will happen to you — and absence of one is not proof of safety. Never start or stop a medication or supplement without talking to your pharmacist or doctor.