Drug & supplement interaction

Ligilactobacillus Salivarius + Ustekinumab

Ustekinumab brand name: Stelara.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Ligilactobacillus Salivarius and Ustekinumab 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. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Ligilactobacillus Salivarius and Ustekinumab

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 Ustekinumab and Ligilactobacillus Salivarius 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.

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.

Ligilactobacillus Salivarius safety at a glance

Ligilactobacillus... overall Use caution Generally well tolerated in healthy people, but caution is advised for those who are seriously ill or immunocompromised.
Pregnancy Possibly Safe When used orally and appropriately. Ligilactobacillus salivarius has been safely used from about 30 weeks' gestation or diagnosis of gestational diabetes until... Read the full pregnancy detail
Breastfeeding Use caution Limited safety data while breastfeeding; check with your doctor first.

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Ustekinumab and Ligilactobacillus Salivarius? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Ustekinumab

Interactions in our licensed database are recorded against drug classes, not just single drug names. Ustekinumab is filed under a single classification — immunosuppressants. Ligilactobacillus Salivarius has documented interactions with 1 drug class — the most serious being antibiotic drugs (moderate) — and none of Ustekinumab’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Ligilactobacillus Salivarius Does Interact With Other Medications

Ligilactobacillus Salivarius has 182 moderate known drug interactions in our database — Ustekinumab isn’t one of them. If you take anything else, check it against the full list below.

Moderate 182 No known interaction 2,648 (incl. Ustekinumab)
Taking anything else?

Check Another of Your Medications Against Ligilactobacillus Salivarius

Covers the 2,830 medications we’ve checked against Ligilactobacillus Salivarius. Pick one to open its full report.

What to actually watch for

No Interaction Found — But Data Suggests Ligilactobacillus Salivarius and Ustekinumab May Share a Side Effect

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do. One of them is worth acting on rather than waiting out — marked below.

  • A higher chance of infection Worth acting on Additional detail

    Ligilactobacillus Salivarius

    “Since Ligilactobacillus salivarius preparations contain live and active microorganisms, there is some concern that they might cause pathogenic infection in some patients. Some lactobacilli species have been isolated in cases of bacteremia, sepsis, splenic abscess, endocarditis, necrotizing fasciitis, pancreatic necrosis, and meningoencephalitis.”

    Ligilactobacillus Salivarius · Natural Medicines adverse-effect record, reported in diabetes.

    6 sources cited
    1. 107543. 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
    2. 110917. Ranchal P, Gupta R, Goldberg R, A Lobo S, Pascual A, El Khoury MY. Penicillin-sensitive Lactobacillus jensenii bacteremia. Am J Ther 2021;28(2):e250-e252. PubMed
    3. 110918. Grazioli-Gauthier L, Rigamonti E, Leo LA, Martinetti Lucchini G, Lo Priore E, Bernasconi E. Lactobacillus jensenii mitral valve endocarditis: Case report, literature review and new perspectives. IDCases 2022;27:e01401. PubMed
    4. 110920. Toprak NU, Bozan T, Yilmaz S, Buyukbayrak EE, Tigen ET. Polymicrobial bacteremia due to Lactobacillus jensenii and Veillonella montpellierensis in a pregnant patient; case report and review of literature. Anaerobe 2022;75:102576. PubMed
    5. 110921. Chazan B, Raz R, Shental Y, Sprecher H, Colodner R. Bacteremia and pyelonephritis caused by Lactobacillus jensenii in a patient with urolithiasis. Isr Med Assoc J 2008;10(2):164-5.
    6. 112546. Wang HK, Teng LJ, Chen YC, Du SH, Hsueh PR. Lactobacillus salivarius empyema with respiratory failure. J Microbiol Immunol Infect 2017;50(6):923-925. PubMed

    Ustekinumab

    Listed in the ADVERSE REACTIONS section of the FDA label for Ustekinumab. Read the label on DailyMed ›

Effects for Ustekinumab come from the ADVERSE REACTIONS section of its FDA label; effects for Ligilactobacillus Salivarius come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 100,563 voluntary FDA FAERS reports for Ustekinumab that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Ligilactobacillus Salivarius in Pregnancy & Breastfeeding

Pregnancy Possibly Safe

When used orally and appropriately. Ligilactobacillus salivarius has been safely used from about 30 weeks' gestation or diagnosis of gestational diabetes until delivery.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

Overlapping uses

What Ustekinumab Is Prescribed For, and What Ligilactobacillus Salivarius Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Ustekinumab is a prescription medicine with approved uses on its FDA label. Ligilactobacillus Salivarius is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Ustekinumab is prescribed for: Ustekinumab injection treats four immune-related conditions. It is approved for moderate to severe plaque psoriasis and active psoriatic arthritis in adults and children 6 years of age and older. It also treats moderately to severely active Crohn's disease in adults and children 2 years of age and older. For moderately to severely active ulcerative colitis, ustekinumab injection is approved for adult patients only.

Read the rest of what Ustekinumab is prescribed for

A prescriber will determine which condition is being treated and choose the appropriate product, route, and dosing schedule.

Ligilactobacillus Salivarius has been studied for:

  • Ulcerative colitis studied, not established Ligilactobacillus Salivarius has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Ligilactobacillus Salivarius for ulcerative colitis

    Oral Ligilactobacillus salivarius has only been evaluated in combination with other ingredients; its effect when used alone is unclear.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Ustekinumab on your own; if you are taking Ligilactobacillus Salivarius for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

Everything else you take

See Every Supplement That Interacts With Ustekinumab

This page covers Ligilactobacillus Salivarius only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ustekinumab page lists 53 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Active Hexose Correlated Compound (ahcc) (moderate), Alfalfa (moderate), American Ginseng (moderate), Andrographis (moderate) and Ashwagandha (moderate).

By severity: 52 moderate · 1 minor.

From our pharmacist’s overview on the Ustekinumab page

“Nothing on this page should scare anyone off ustekinumab (Stelara), but the pattern is worth knowing. Stelara treats psoriasis, psoriatic arthritis, and Crohn's disease by quieting part of the immune system, and all 53 supplements here are flagged for the same reason.”

Reviewed by 2 · Jul 18, 2026

Open the Ustekinumab interaction page

How much people look this up

Where Ligilactobacillus Salivarius and Ustekinumab 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 Ligilactobacillus Salivarius
Steady interest

#1,039 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Ustekinumab
Steady interest

#2,092 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 Ligilactobacillus Salivarius reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Ligilactobacillus Salivarius and Ustekinumab records this page draws on were last updated July 11, 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 Ligilactobacillus Salivarius

What is Ligilactobacillus Salivarius?

  • Digestive and gut health
  • Oral and dental health
  • Immune support
  • Vaginal and urinary health
  • General probiotic supplementation

Ligilactobacillus salivarius (formerly called Lactobacillus salivarius) is a probiotic bacterium found naturally in the mouth and gut of humans and animals. People take it to support digestion, oral health, and immunity, but solid human evidence is still limited for most uses. It is generally well tolerated in healthy people, but those with weakened immune systems should check with a doctor first.

Ligilactobacillus salivarius · Lactobacillaceae · Live bacterial cells (probiotic strain) · Capsules, tablets, chewable tablets, powders, and some fortified foods or oral lozenges

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

Ligilactobacillus Salivarius: dosing

There is no official standardized dose for Ligilactobacillus salivarius. Probiotic doses are usually measured in colony-forming units (CFUs), and the amount varies widely between products.The best approach is to follow the directions on the product label, since doses are tied to the specific strain and formulation.

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

Read the full Ligilactobacillus Salivarius monograph & all interactions
Medication

About Ustekinumab Injection

What Is Ustekinumab Injection Used For?

Brand name: Stelara

Ustekinumab injection treats four immune-related conditions. It is approved for moderate to severe plaque psoriasis and active psoriatic arthritis in adults and children 6 years of age and older. It also treats moderately to severely active Crohn's disease in adults and children 2 years of age and older.

For moderately to severely active ulcerative colitis, ustekinumab injection is approved for adult patients only. A prescriber will determine which condition is being treated and choose the appropriate product, route, and dosing schedule.

See full Ustekinumab Injection drug information
Keep checking

Other Drugs & Ligilactobacillus Salivarius

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

0Major
182Moderate
0Minor
2,647No known interaction
182 Moderate 2,647 No interaction
Moderate

182 interactions

Showing 60 of 182 moderate interactions — see all 182 on the Ligilactobacillus Salivarius page.

No interaction 2,647 drugs checked — show the list

We also checked Ligilactobacillus Salivarius against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,647 medications checked with no known interaction — see the full Ligilactobacillus Salivarius list.

See the full Ligilactobacillus Salivarius interactions page
See every supplement checked against Ustekinumab, ranked by severity
Evidence & sources

Ligilactobacillus Salivarius References

The 10 references that drive our Ligilactobacillus Salivarius 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. Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
  2. Lindsay KL, Brennan L, Kennelly MA, et al. Impact of probiotics in women with gestational diabetes mellitus on metabolic health: a randomized controlled trial. Am J Obstet Gynecol. 2015;212(4):496.e1-11. PubMed
  3. Fernández L, Cárdenas N, Arroyo R, et al. Prevention of Infectious Mastitis by Oral Administration of Lactobacillus salivarius PS2 During Late Pregnancy. Clin Infect Dis. 2016;62(5):568-573.
  4. 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
  5. Ranchal P, Gupta R, Goldberg R, A Lobo S, Pascual A, El Khoury MY. Penicillin-sensitive Lactobacillus jensenii bacteremia. Am J Ther 2021;28(2):e250-e252. PubMed
  6. Grazioli-Gauthier L, Rigamonti E, Leo LA, Martinetti Lucchini G, Lo Priore E, Bernasconi E. Lactobacillus jensenii mitral valve endocarditis: Case report, literature review and new perspectives. IDCases 2022;27:e01401. PubMed
  7. Toprak NU, Bozan T, Yilmaz S, Buyukbayrak EE, Tigen ET. Polymicrobial bacteremia due to Lactobacillus jensenii and Veillonella montpellierensis in a pregnant patient; case report and review of literature. Anaerobe 2022;75:102576. PubMed
  8. Chazan B, Raz R, Shental Y, Sprecher H, Colodner R. Bacteremia and pyelonephritis caused by Lactobacillus jensenii in a patient with urolithiasis. Isr Med Assoc J 2008;10(2):164-5.
  9. Wang HK, Teng LJ, Chen YC, Du SH, Hsueh PR. Lactobacillus salivarius empyema with respiratory failure. J Microbiol Immunol Infect 2017;50(6):923-925. PubMed
  10. García Carretero R, Regodon Dominguez M, Ruiz Bastian M, Lopez Lomba M. Lactobacillus salivarius infection as a postoperative complication after bariatric surgery. Enferm Infecc Microbiol Clin (Engl Ed) 2018;36(1):60-61. DOI

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 Ligilactobacillus Salivarius and Ustekinumab Together: Common Questions

Is it safe to take Ligilactobacillus Salivarius with Ustekinumab?
We do not list a known interaction between Ligilactobacillus Salivarius and Ustekinumab. 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.
Do Ligilactobacillus Salivarius and Ustekinumab have any of the same side effects?
Yes — our sources link each of them separately to one of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Are Ligilactobacillus Salivarius and Ustekinumab used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Ligilactobacillus Salivarius in each. That is a conversation for your prescriber, especially if Ustekinumab is being adjusted to a target.
How was the Ligilactobacillus Salivarius and Ustekinumab combination checked?
Interactions in our licensed database are recorded against drug classes. Ustekinumab is filed under 1 classification, and Ligilactobacillus Salivarius has documented interactions with 1 drug class — none of Ustekinumab's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Ligilactobacillus Salivarius interact with any other medications?
Yes. Ligilactobacillus Salivarius has 182 documented drug interactions in our database — Ustekinumab is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Ustekinumab interact with any supplements?
Yes. Ustekinumab has documented interactions with 53 supplements in our database — Ligilactobacillus Salivarius is not one of them. The Ustekinumab interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Ligilactobacillus Salivarius monograph Uses, safety profile, and every drug interaction in one place Ustekinumab Injection drug information The full plain-English guide to this medication Ustekinumab supplement interactions Every supplement checked against Ustekinumab, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 10 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

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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.