Interactions on record — worth a quick check against your medications. Based on 2 of 5 ingredients. Check your meds →
Dietary supplement

Ortho Spore Complete Ingredients & Drug Interactions

by Ortho Molecular Products

Ortho Spore Complete label
See full label image
Capsule Category: Non-nutrient/non-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 Ortho Spore Complete 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

Ortho Spore Complete is a dietary supplement by Ortho Molecular Products with 5 active ingredients. Its ingredients are commonly taken for constipation, irritable bowel syndrome (ibs), diarrhea.Based on those ingredients, 182 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are LactoSpore, Bacillus subtilis. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Ortho Spore Complete by Ortho Molecular Products

Ask about any prescription or over-the-counter medication and we check it for interactions with Ortho Spore Complete by Ortho Molecular Products — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Ortho Spore Complete by Ortho Molecular Products

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 5 of its 5 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Ortho Spore Complete is a 5-ingredient capsule built on four live bacterial strains: LactoSpore (Bacillus coagulans), Bacillus clausii (B106), Bacillus coagulans (SNZ1969), Bacillus subtilis, and Bacillus subtilis (HS43). These are all probiotics — beneficial organisms meant to support your gut health.

The product also contains inactive ingredients (microcrystalline cellulose, hypromellose, and silicon dioxide) that act as capsule fillers and binders.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: Digestive health and immune support.
  • We looked for evidence on: Constipation, Diarrhea, Irritable bowel syndrome (IBS), Flatulence, Dyspepsia, Antibiotic-associated diarrhea — and 4 related terms.
  • The strongest evidence on file: Bacillus Coagulans is rated "Possibly Effective" for Constipation (Natural Medicines).
  • Also on file: Bacillus Coagulans is rated "Possibly Effective" for Irritable bowel syndrome (IBS).
  • Also on file: Bacillus Subtilis is rated "Possibly Effective" for Antibiotic-associated diarrhea.

The evidence is mixed. Bacillus coagulans strains show possibly effective ratings for constipation and irritable bowel syndrome (IBS), while Bacillus subtilis strains are possibly effective for antibiotic-associated diarrhea.

For other uses listed — athletic performance, cancer, nonalcoholic fatty liver disease, eczema, diabetes, and cirrhosis — the evidence we hold isn't strong enough to rate them either way.

The evidence, ingredient by ingredient Bacillus Coagulans Bacillus Subtilis

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

These probiotics are generally well tolerated in healthy adults, but the evidence and product quality vary, and safety data overall is limited. Before using, talk to your doctor — especially important because live organisms in probiotic products can, rarely, cause serious infections (bacteremia and sepsis) in people with weakened immune systems, central lines, or severe illness.

Reported side effects in trials include headache and diarrhea, though diarrhea is rare. Pregnancy and lactation safety data isn't on file for these ingredients — discuss with your doctor or pharmacist for personalized advice.

Side effects, ingredient by ingredient Bacillus Coagulans Bacillus Subtilis

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?
  • 2 of the 2 matched ingredients can interact with medications — Bacillus Coagulans, Bacillus Subtilis.
  • The most serious interaction on file is rated Moderate.
  • For scale: 182 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.

Antibiotics are the main one to double-check. Taking them at the same time as this product may reduce how well the probiotics work, so you'll want to separate the doses.

Ask your pharmacist for the right timing before you begin.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This probiotic may help with constipation, IBS, or antibiotic-related diarrhea if you're otherwise healthy. If you take antibiotics, you'll need to space them apart from this product — talk to us about timing.

If you're immunocompromised, have a central line, or are severely ill, check with your doctor first. Run your medications through our checker before you start.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 4 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated May 19, 2022.

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 Ortho Spore Complete, straight from the product label.

Brand Ortho Molecular Products
Barcode (UPC) 615033004774
Net contents 60 Capsule(s)
Market status On market
Date entered into DSLD May 19, 2022
DSLD ID 269514
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy 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 Ortho Spore Complete by Ortho Molecular Products, 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:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
30
UPC/BARCODE
615033004774
IngredientAmount% DV
LactoSpore13 mg--
Bacillus clausii (B106)13 mg--
Bacillus coagulans (SNZ1969)13 mg--
Bacillus subtilis13 mg--
Bacillus subtilis (HS43)6.5 mg--

Other ingredients: Microcrystalline Cellulose, Hypromellose, Silicon Dioxide

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

Suggested use: 2 capsules per day or as recommended by your health care professional.

Brand IP Statement(s)

Formulated to be free of allergens derived from: Gluten, corn, yeast, artificial colors and flavors. Dairy free

Ortho Molecular Products Because Efficacy Matters

LactoSpore LactoSpore is a registered trademark of Sabinsa Corporation, USA.

Precautions

If you are pregnant or nursing, consult your physician before taking this product.

As with all dietary supplements, some individuals may not tolerate or may be allergic to the ingredients used. Please read the ingredient panel carefully prior to ingestion. Cease taking this product and consult your physician if you have negative reactions upon ingestion.

Keep out of reach of children.

This product was sealed for your protection. Do not use if outer logoed neck seal or inner-seal is missing or damaged. Do not accept if label shows signs of tampering

Storage

Keep container tightly closed. Store at room temperature.

General Statements

Professional strength: Not for sale through Amazon.com

Learn more about us at OrthoMolecularProducts.com

Formulation

VitaSecure

Gastrointestinal health

FDA Statement of Identity

Dietary Supplement

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.

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

See for yourself

Ortho Spore Complete by Ortho Molecular Products label

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

Ortho Spore Complete 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 Ortho Spore Complete by Ortho Molecular Products

These are the 5 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Capsule(s) Dosage formCapsule Servings per container30 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.

LactoSpore

Interacts with
182 drugs
13 mg per serving

Bacillus coagulans is a spore-forming probiotic that survives stomach acid well and may help with some digestive problems such as IBS, constipation, a...

LactoSpore monograph & interactions

Bacillus clausii (B106)

13 mg per serving

Bacillus coagulans (SNZ1969)

Interacts with
182 drugs
13 mg per serving

Bacillus coagulans is a spore-forming probiotic that survives stomach acid well and may help with some digestive problems such as IBS, constipation, a...

Bacillus coagulans (SNZ1969) monograph & interactions

Bacillus subtilis

Interacts with
182 drugs
13 mg per serving

Bacillus subtilis is a spore-forming probiotic bacterium found in soil and some fermented foods, and it is used mainly to support gut health and diges...

Bacillus subtilis monograph & interactions

Bacillus subtilis (HS43)

Interacts with
182 drugs
6.5 mg per serving

Bacillus subtilis is a spore-forming probiotic bacterium found in soil and some fermented foods, and it is used mainly to support gut health and diges...

Bacillus subtilis (HS43) monograph & interactions

Other (inactive) ingredients: Microcrystalline Cellulose, Hypromellose, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.

Interaction report

Ortho Spore Complete by Ortho Molecular Products Drug Interactions

Want to check YOUR meds against Ortho Spore Complete?

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 checker
182Drugs
182 Moderate

Ingredients driving the most interactions

LactoSpore 182
Bacillus subtilis 182

Individual Drug Interactions

The ingredients in Ortho Spore Complete interact with 182 drugs. Click any drug to see the details.

2 of the 5 ingredients in Ortho Spore Complete interact with drugs. Each result below shows which ingredient is responsible. LactoSpore Bacillus subtilis

Each ingredient & the kinds of drugs it affects

For each ingredient in Ortho Spore Complete 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.

LactoSpore1 drug type · 182 drugs

Antibiotic Drugs

Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B. coagulans.
B. coagulans preparations usually contain live and active organisms. Therefore, simultaneously taking antibiotics might kill a significant number of the organisms. Tell patients to separate administration of antibiotics and B. coagulans preparations by at least two hours.

Likelihood Probable Evidence D
LactoSpore full monograph & interactions

Bacillus subtilis1 drug type · 182 drugs

Antibiotic Drugs

Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B. subtilis.
Since B. subtilis preparations usually contain live and active organisms, simultaneously taking antibiotics might kill a significant number of the organisms. Tell patients to separate administration of antibiotics and B. subtilis preparations by at least 2 hours.

Likelihood Probable Evidence D
Bacillus subtilis full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Ortho Spore Complete, from the product label.

Ortho Molecular Products

See all Ortho Molecular Products products
Name
Ortho Molecular Products, Inc.
Street Address
3017 Business Park Drive
City
Stevens Point
State
WI
ZipCode
54482
Web Address
OrthoMolecularProducts.com
Pharmacist Counseling Corner

Ortho Spore Complete by Ortho Molecular Products: Common Questions

Does Ortho Spore Complete by Ortho Molecular Products interact with any medications?
Yes. Based on its ingredients, Ortho Spore Complete has a known interaction with 182 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Ortho Spore Complete contains 5 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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.
Can I take this if I'm on an antibiotic?
Yes, but you need to time it right. Since antibiotics can kill the live organisms in this product, space them a few hours apart — your pharmacist can tell you exactly how. Come talk to us before you start the antibiotic so we can help you plan the schedule.
What does each of these Bacillus strains actually do?
The Bacillus coagulans strains (LactoSpore and SNZ1969) are possibly effective for constipation and IBS. The two Bacillus subtilis strains are possibly effective for antibiotic-associated diarrhea. All are live bacteria meant to support your gut balance.
Is this safe if I'm pregnant or breastfeeding?
We don't have safety data on file for these ingredients during pregnancy or lactation. Talk to your doctor or pharmacist — they can weigh the possible benefits against any risks for your situation.
What are the side effects?
These probiotics are generally well tolerated. Headache was reported in one trial, and diarrhea has been reported rarely. If you're immunocompromised or severely ill, there's a small risk of serious infection — ask your doctor if this product is right for you.
Do these probiotics actually work for what the label says?
The evidence is solid for constipation and IBS with the Bacillus coagulans strains, and for antibiotic-associated diarrhea with the Bacillus subtilis strains — all rated possibly effective. For other uses, the evidence isn't strong enough to rate them either way.

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

Not sure if Ortho Spore Complete is safe with your meds?

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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.

Ortho Spore Complete label
Go deeper

The Full Monographs Behind Ortho Spore Complete’s Ingredients

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

Herb & supplement monograph

Bacillus Coagulans

Interacts with 182 drugs

Bacillus coagulans is a spore-forming probiotic that survives stomach acid well and may help with some digestive problems such as IBS, constipation, and certain types of diarrhea. The eviden...

Read the full Bacillus Coagulans monograph → Herb & supplement monograph

Bacillus Subtilis

Interacts with 182 drugs

Bacillus subtilis is a spore-forming probiotic bacterium found in soil and some fermented foods, and it is used mainly to support gut health and digestion. Early research is promising for ce...

Read the full Bacillus Subtilis monograph →
Sources

Sources & How We Checked

Ortho Spore Complete'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 30 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.

Bacillus Coagulans 20 references
  1. Saxelin M, Chuang NH, Chassy B, et al. Lactobacilli and bacteremia in southern Finland 1989-1992. Clin Infect Dis 1996;22:564-6. PubMed
  2. Tynkkynen S, Singh KV, Varmanen P. Vancomycin resistance factor of Lactobacillus rhamnosus GG in relation to enterococcal vancomycin resistance (van) genes. Int J Food Microbiol 1998;41:195-204. PubMed
  3. Klein G, Zill E, Schindler R, et al. Peritonitis associated with vancomycin-resistant Lactobacillus rhamnosus in a continuous ambulatory peritoneal dialysis patient; organism identification, antibiotic therapy, and case report. J Clin Microbiol 1998;36:
  4. Kalima P, Masterton RG, Roddie PH, et al. Lactobacillus rhamnosus infection in a child following bone marrow transplant. J Infect 1996;32:165-7. PubMed
  5. Goldin BR. Health Benefits of probiotics. Br J Nutr 1998;80:S203-7. DOI
  6. Rautio M, Jousimies-Somer H, Kauma H, et al. Liver abscess due to Lactobacillus rhamnosus strain indistinguishable from L. rhamnosus strain GG. Clin Infect Dis 1999;28:1159-60.
  7. MacGregor G, Smith AJ, Thakker B, Kinsella J. Yoghurt biotherapy: contraindicated in immunosuppressed patients? Postgrad Med J 2002;78:366-7. PubMed
  8. Land MH, Rouster-Stevens K, Woods CR, et al. Lactobacillus sepsis associated with probiotic therapy. Pediatrics 2005;115:178-81.
  9. De Groote MA, Frank DN, Dowell E, et al. Lactobacillus rhamnosus GG bacteremia associated with probiotic use in a child with short gut syndrome. Pediatr Infect Dis J 2005;24:278-80. PubMed
  10. Vahabnezhad E, Mochon AB, Wozniak LJ, Ziring DA. Lactobacillus bacteremia associated with probiotic use in a pediatric patient with ulcerative colitis. J Clin Gastroenterol. 2013;47(5):437-9. PubMed
  11. Pruccoli G, Silvestro E, Pace Napoleone C, Aidala E, Garazzino S, Scolfaro C. Are probiotics safe? Bifidobacterium bacteremia in a child with severe heart failure. Infez Med. 2019;27(2):175-178.
  12. Sendil S, Shrimanker I, Mansoora Q, Goldman J, Nookala VK. Lactobacillus rhamnosus bacteremia in an immunocompromised renal transplant patient. Cureus. 2020;12(2):e6887. PubMed
  13. Albarillo FS, Shah U, Joyce C, Slade D. Lactobacillus rhamnosus Infection: A single-center 4-year descriptive analysis. J Glob Infect Dis. 2020;12(3):119-123. PubMed
  14. Pasala S, Singer L, Arshad T, Roach K. Lactobacillus endocarditis in a healthy patient with probiotic use. IDCases. 2020;22:e00915. PubMed
  15. Agrawal S, Tuchman ES, Bruce MJ, Theodorou ME. Fatal Lactobacillus endocarditis in a patient with transcatheter aortic valve replacement. BMJ Case Rep. 2020;13(11):e236835.
  16. Antoun M, Hattab Y, Akhrass FA, Hamilton LD. Uncommon pathogen, Lactobacillus, causing infective endocarditis: Case report and review. Case Rep Infect Dis. 2020;2020:8833948. PubMed
  17. Rossi F, Amadoro C, Gasperi M, Colavita G. Lactobacilli infection case reports in the last three years and safety implications. Nutrients. 2022;14(6):1178. PubMed
  18. Franko B, Vaillant M, Recule C, Vautrin E, et al. Lactobacillus paracasei endocarditis in a consumer of probiotics. Med Mal Infect. 2013;43(4):171-3. PubMed
  19. Campbell RE, Miller A, Afroze A. Native valve endocarditis secondary to Lactobacillus paracasei bacteremia. Consultant. 2020;60(9):27-8. DOI
  20. Kato K, Funabashi N, Takaoka H, et al. Lactobacillus paracasei endocarditis in a consumer of probiotics with advanced and severe bicuspid aortic valve stenosis complicated with diffuse left ventricular mid-layer fibrosis. Int J Cardiol. 2016;224:157-161. PubMed

See these in context on the Bacillus Coagulans monograph →

Bacillus Subtilis 10 references
  1. Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
  2. Lampropoulos PK, Gkentzi D, Tzifas S, Dimitriou G. Neonatal sepsis due to Bacillus subtilis. Cureus 2021;13(9):e17692. PubMed
  3. La Jeon Y, Yang JJ, Kim MJ, et al. Combined Bacillus licheniformis and Bacillus subtilis infection in a patient with oesophageal perforation. J Med Microbiol 2012;61(Pt 12):1766-1769. PubMed
  4. Wallet F, Crunelle V, Roussel-Delvallez M, Fruchart A, Saunier P, Courcol RJ. Bacillus subtilis as a cause of cholangitis in polycystic kidney and liver disease. Am J Gastroenterol 1996;91(7):1477-8.
  5. Velasco E, Martins CA, Tabak D, Bouzas LF. "Bacillus subtilis" infection in a patient submitted to a bone marrow transplantation. Rev Paul Med 1992;110(3):116-7.
  6. Kato A, Yoshifuji A, Komori K, et al. A case of Bacillus subtilis var. natto bacteremia caused by ingestion of natto during COVID-19 treatment in a maintenance hemodialysis patient with multiple myeloma. J Infect Chemother 2022;28(8):1212-1215. PubMed
  7. Freedman KE, Hill JL, Wei Y, et al. Examining the gastrointestinal and immunomodulatory effects of the novel probiotic Bacillus subtilis DE111. Int J Mol Sci 2021;22(5):2453. PubMed
  8. Lefevre M, Racedo SM, Denayrolles M, et al. Safety assessment of Bacillus subtilis CU1 for use as a probiotic in humans. Regul Toxicol Pharmacol 2017;83:54-65. PubMed
  9. Hanifi A, Culpepper T, Mai V, et al. Evaluation of Bacillus subtilis R0179 on gastrointestinal viability and general wellness: a randomised, double-blind, placebo-controlled trial in healthy adults. Benef Microbes 2015;6(1):19-27. PubMed
  10. Tokano M, Tarumoto N, Imai K, et al. A case of bacterial meningitis caused by Bacillus subtilis var. natto. Intern Med. 2022. Epub ahead of print.

See these in context on the Bacillus Subtilis 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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