GI Flora Ingredients & Drug Interactions
What is this page for?
First and foremost: checking GI Flora 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
GI Flora is a dietary supplement by Allergy Research Group with 4 active ingredients. Its ingredients are commonly taken for digestive health and balance, diarrhea (including antibiotic-related), vaginal yeast and bacterial infections.Based on those ingredients, 182 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Lactobacillus acidophilus, Bifidobacterium longum. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against GI Flora by Allergy Research Group
Ask about any prescription or over-the-counter medication and we check it for interactions with GI Flora by Allergy Research Group — 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 GI Flora by Allergy Research Group
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
GI Flora contains 4 active probiotic ingredients: three Lactobacillus strains (casei, rhamnosus, and acidophilus) and Bifidobacterium longum. These are live, beneficial bacteria meant to support your gut flora.
The capsules also contain inactive ingredients—hydroxypropyl methylcellulose (the capsule material itself), FOS (a prebiotic fiber that feeds beneficial bacteria), silicon dioxide, and magnesium silicate.
Does it work?
Moderate evidence
The evidence for these probiotics is mixed. Lactobacillus acidophilus is possibly effective for irritable bowel syndrome (IBS), Helicobacter pylori infection, antibiotic-associated diarrhea, and bacterial vaginosis—but the data are preliminary.
For Bifidobacterium longum, the evidence on the label conditions (cognitive decline, hay fever, anxiety, asthma, and athletic performance) is insufficient to rate; we don't have reliable data showing it works for those uses. Neither ingredient has strong, established effectiveness in our data.
How safe is it?
Well-documented data
Lactobacillus acidophilus is generally well tolerated in healthy adults and children. Gastrointestinal side effects like bloating, flatulence, abdominal discomfort, and diarrhea can occur, but they're uncommon.
Very rarely, these live bacteria have been found in bloodstream infections or serious infections in susceptible patients, though this typically occurs in those already ill or with compromised immunity. Bifidobacterium longum is also generally well tolerated in healthy people but warrants caution in those who are seriously ill or immune-compromised; rare gastrointestinal symptoms and one case of dry cough have been reported.
Because this product contains live organisms and safety data are limited, especially during breastfeeding, check with your doctor or pharmacist before starting—especially if you're critically ill, immune-compromised, or nursing.
Meds to double-check
Moderate interaction found
If you take antibiotic drugs, do not take this product at the same time. Antibiotics can kill the live bacteria in these probiotics, making them less effective; your doctor or pharmacist can help you space out the doses properly.
Additionally, because we could not check two of the four probiotic strains in this product, use the search tool below to run your full medication list through.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
GI Flora is a four-strain probiotic mix that may help with IBS, antibiotic-related diarrhea, and a couple of other digestive concerns, though evidence is preliminary. The main thing to watch is timing with antibiotics—they can kill the live bacteria, so space out the doses and ask your doctor or pharmacist when to take each.
If you're seriously ill, immune-compromised, or breastfeeding, talk it over with your healthcare provider before starting.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Sep 21, 2017.
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 GI Flora, straight from the product label.
| Brand | Allergy Research Group |
|---|---|
| Barcode (UPC) | 713947724600 |
| Net contents | 90 Vegetarian Capsules |
| Market status | On market |
| Date entered into DSLD | Sep 21, 2017 |
| DSLD ID | 78908 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Capsule |
| Dietary claims / uses | Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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 GI Flora by Allergy Research Group, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Lactobacillus casei | 0 NP | -- |
| Lactobacillus rhamnosus | 0 NP | -- |
| Lactobacillus acidophilus | 0 NP | -- |
| Bifidobacterium longum | 0 NP | -- |
Other ingredients: Hydroxypropyl Methylcellulose, FOS, Silicon Dioxide, Magnesium Silicate
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.
Formula
This combination of 4 beneficial probiotic bacteria consists of Lactobacillus acidophilus, L. rhamnosus, L. casei, and Bifidobacterium longum.
L. acidophilus, L. casei, L. rhamnosus, B. longum
Contains: Milk (in trace amounts)
General Statements
Lyophilized (freeze dried).
Suggested/Recommended/Usage/Directions
Suggested Use As a dietary supplement, 1 to 3 capsules two or three times daily, or as directed by a healthcare practitioner.
Storage
To maintain potency, store tightly closed and refrigerated. Short term heat exposure is acceptable.
FDA Disclaimer Statement
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
FDA Statement of Identity
Dietary Supplement
Precautions
Contains: Milk (in trace amounts)
General
Rev. 008
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
GI Flora by Allergy Research Group 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 GI Flora by Allergy Research Group
These are the 4 active ingredients this product is made of. Select any to open its full monograph.
Serving size3 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.
Lactobacillus casei
Lactobacillus rhamnosus
Lactobacillus acidophilus
Interacts with182 drugs
Lactobacillus acidophilus is a 'friendly' bacterium used as a probiotic to support gut and vaginal health. It is generally well tolerated in healthy p...
Lactobacillus acidophilus monograph & interactionsBifidobacterium longum
Interacts with182 drugs
Bifidobacterium longum is a 'friendly' bacterium found naturally in the human gut and used as a probiotic. It is generally well tolerated and is most...
Bifidobacterium longum monograph & interactionsOther (inactive) ingredients: Hydroxypropyl Methylcellulose, FOS, Silicon Dioxide, Magnesium Silicate. These complete the product’s ingredient list but are not active constituents.
GI Flora by Allergy Research Group Drug Interactions
HelloPharmacist Interaction Report
GI Flora by Allergy Research Group contains four probiotic strains, two of which we can check for interactions.
Through its Lactobacillus acidophilus and Bifidobacterium longum content, this product has a moderate interaction with antibiotic drugs—the live organisms in these probiotics may be killed by antibiotics, potentially reducing the effectiveness of the probiotic itself.
Read the full breakdown — every affected drug type, severity by severity
The concern is specific to timing: if you take antibiotics and this product at the same time, the antibiotics may kill off too many of the live bacteria before they can establish themselves. The data advises separating the two by spacing out doses, so talk with your doctor or pharmacist about the right timing for your situation.
We were unable to check Lactobacillus casei and Lactobacillus rhamnosus—we hold no interaction data for these ingredients. Altogether, these interactions span 182 individual medications.
Use the search tool below to enter your exact medications and see whether any fall into the antibiotic category or have other documented interactions with the checked ingredients.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against GI Flora?
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 GI Flora interact with 182 drugs. Click any drug to see the details.
2 of the 4 ingredients in GI Flora interact with drugs. Each result below shows which ingredient is responsible. Lactobacillus acidophilus Bifidobacterium longum
AmikacinAmikin, Arikayce
How Amikacin interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Amikacin interactionLactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Amikacin interactionAmoxicillinAmix, Amoram, Amoxident, Amoxil Capsules, Amoxil Injection, Galenamox +3 more
How Amoxicillin interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Amoxicillin interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Amoxicillin interactionAmoxicillin VeterinaryBiomox
How Amoxicillin Veterinary interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Amoxicillin Veterinary interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Amoxicillin Veterinary interactionAmoxicillin, Clavulanate PotassiumAugmentin, Augmentin '125/31 SF', Augmentin '250/62 SF', Augmentin XR, Augmentin-Duo 400/57, Clavulin
How Amoxicillin, Clavulanate Potassium interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Amoxicillin, Clavulanate Potassium interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Amoxicillin, Clavulanate Potassium interactionAmoxicillin, Omeprazole Magnesium, RifabutinTalicia
How Amoxicillin, Omeprazole Magnesium, Rifabutin interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Amoxicillin, Omeprazole Magnesium, Rifabutin interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Amoxicillin, Omeprazole Magnesium, Rifabutin interactionAmphotericin, TetracyclineMysteclin-F
How Amphotericin, Tetracycline interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Amphotericin, Tetracycline interactionLactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Amphotericin, Tetracycline interactionAmpicillinOmnipen, Omnipen-N, Penbritin, Principen, Rimacillin
How Ampicillin interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Ampicillin interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Ampicillin interactionAmpicillin, SulbactamUnasyn
How Ampicillin, Sulbactam interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Ampicillin, Sulbactam interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Ampicillin, Sulbactam interactionAvibactam Sodium, CeftazidimeAvycaz
How Avibactam Sodium, Ceftazidime interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Avibactam Sodium, Ceftazidime interactionLactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Avibactam Sodium, Ceftazidime interactionAzithromycinAzasite, Zithromax, Zmax
How Azithromycin interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Azithromycin interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Azithromycin interactionAztreonamAzactam
How Aztreonam interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Aztreonam interactionLactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Aztreonam interactionBacampicillinPenglobe
How Bacampicillin interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Bacampicillin interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Bacampicillin interactionBacitracinBaci-IM, Baciguent, Bacitracin Ointment
How Bacitracin interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Bacitracin interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Bacitracin interactionBenznidazoleBenznidazole
How Benznidazole interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Benznidazole interactionLactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Benznidazole interactionBismuth Subsalicylate, Metronidazole, TetracyclineHelidac
How Bismuth Subsalicylate, Metronidazole, Tetracycline interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionCapreomycinCapastat
How Capreomycin interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Capreomycin interactionLactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Capreomycin interactionCarbenicillin Indanyl SodiumGeocillin
How Carbenicillin Indanyl Sodium interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Carbenicillin Indanyl Sodium interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Carbenicillin Indanyl Sodium interactionCefaclorCeclor, Ceclor CD
How Cefaclor interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefaclor interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefaclor interactionCefadroxilCef-Tab, Duricef, Ultracef
How Cefadroxil interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefadroxil interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefadroxil interactionCefamandoleMandol
How Cefamandole interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefamandole interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefamandole interactionCefazolinAncef
How Cefazolin interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefazolin interactionLactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefazolin interactionCefdinirOmnicef
How Cefdinir interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefdinir interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefdinir interactionCefditoren PivoxilSpectracef
How Cefditoren Pivoxil interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefditoren Pivoxil interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefditoren Pivoxil interactionCefepimeMaxipime
How Cefepime interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefepime interactionLactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefepime interactionCefiderocol Sulfate TosylateFetroja
How Cefiderocol Sulfate Tosylate interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefiderocol Sulfate Tosylate interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefiderocol Sulfate Tosylate interactionCefiximeSuprax
How Cefixime interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefixime interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefixime interactionCefmetazoleZefazone
How Cefmetazole interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefmetazole interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefmetazole interactionCefonicidMonocid
How Cefonicid interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefonicid interactionLactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefonicid interactionCefoperazoneCefobid
How Cefoperazone interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Lactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefoperazone interactionBifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefoperazone interactionCefotaximeClaforan
How Cefotaxime interacts with GI Flora — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium LongumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum + Cefotaxime interactionLactobacillus AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Lactobacillus Acidophilus + Cefotaxime interactionEach ingredient & the kinds of drugs it affects
For each ingredient in GI Flora 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.
Lactobacillus acidophilus
Antibiotic Drugs
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L. acidophilus.
L. acidophilus 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 L. acidophilus preparations by at least two hours.
Bifidobacterium longum
Antibiotic Drugs
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B. longum.
Since B. longum 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. longum preparations by at least 2 hours.
Brand information
Manufacturer and brand details for GI Flora, from the product label.
Allergy Research Group
See all Allergy Research Group products- Name
- Allergy Research Group
- City
- Alameda
- State
- CA
- ZipCode
- 94502
- Phone Number
- 510-263-2000
- Web Address
- www.allergyresearchgroup.com
GI Flora by Allergy Research Group: Common Questions
Does GI Flora by Allergy Research Group interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take GI Flora while I'm on antibiotics?
Will this help with my IBS or diarrhea?
What are the most common side effects?
Is it safe to take while breastfeeding?
Is there a risk of infection from the live bacteria?
What do these bacteria actually do?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if GI Flora 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 GI Flora’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Lactobacillus Acidophilus
Interacts with 182 drugsLactobacillus acidophilus is a 'friendly' bacterium used as a probiotic to support gut and vaginal health. It is generally well tolerated in healthy people, and there is reasonable evidence...
Read the full Lactobacillus Acidophilus monograph → Herb & supplement monographBifidobacterium Longum
Interacts with 182 drugsBifidobacterium longum is a 'friendly' bacterium found naturally in the human gut and used as a probiotic. It is generally well tolerated and is most studied for digestive issues, though evi...
Read the full Bifidobacterium Longum monograph →Sources & How We Checked
GI Flora'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 36 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.
Lactobacillus Acidophilus 15 references
- Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
- Begtrup LM, de Muckadell OB, Kjeldsen J, Christensen RD, Jarbøl DE. Long-term treatment with probiotics in primary care patients with irritable bowel syndrome--a randomised, double-blind, placebo controlled trial. Scand J Gastroenterol 2013;48(10):1127-35 PubMed
- Chatterjee S, Kar P, Das T, Ray S, Gangulyt S, Rajendiran C, Mitra M. Randomised placebo-controlled double blind multicentric trial on efficacy and safety of Lactobacillus acidophilus LA-5 and Bifidobacterium BB-12 for prevention of antibiotic-associated
- Shavakhi A, Tabesh E, Yaghoutkar A, Hashemi H, Tabesh F, Khodadoostan M,Minakari M, Shavakhi S, Gholamrezaei A. The effects of multistrain probiotic compound on bismuth-containing quadruple therapy for Helicobacter pylori infection: a randomized placebo-c
- Karamali M, Dadkhah F, Sadrkhanlou M, et al. Effects of probiotic supplementation on glycaemic control and lipid profiles in gestational diabetes: a randomized, double-blind, placebo-controlled trial. Diabetes Metab 2016;42(4):234-41. PubMed
- Badehnoosh B, Karamali M, Zarrati M, et al. The effects of probiotic supplementation on biomarkers of inflammation, oxidative stress and pregnancy outcomes in gestational diabetes. J Matern Fetal Neonatal Med. 2018 May;31(9):1128-1136.
- Kumar S, Kumar R, Rohilla L, Jacob N, Yadav J, Sachdeva N. A high potency multi-strain probiotic improves glycemic control in children with new-onset type 1 diabetes mellitus: A randomized, double-blind, and placebo-controlled pilot study. Pediatr Diabete
- Shahriari A, Karimi E, Shahriari M, Aslani N, Khooshideh M, Arab A. The effect of probiotic supplementation on the risk of gestational diabetes mellitus among high-risk pregnant women: A parallel double-blind, randomized, placebo-controlled clinical trial PubMed
- Xiao SD, Zhang DZ, Lu H, et al. Multicenter, randomized, controlled trial of heat-killed Lactobacillus acidophilus LB in patients with chronic diarrhea. Adv Ther. 2003;20(5):253-60.
- 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
- Ozer M, Goksu SY, Shahverdiani A, Mustafa M. Lactobacillus acidophilus-induced endocarditis and associated splenic abscess. Case Rep Infect Dis 2020;2020:1382709.
- Sadrin S, Sennoune S, Gout B, et al. A 2-strain mixture of Lactobacillus acidophilus in the treatment of irritable bowel syndrome: A placebo-controlled randomized clinical trial. Dig Liver Dis 2020;52(5):534-540. PubMed
- Stoffer JN, Slingsby TJ, Giuliari GP. Lactobacillus acidophilus endophthalmitis after intravitreal bevacizumab injection requiring intraocular lens explantation. Can J Ophthalmol 2022;57(1):e21-e22. PubMed
- Cukovic-Cavka S, Likic R, Francetic I, Rustemovic N, Opacic M, Vucelic B. Lactobacillus acidophilus as a cause of liver abscess in a NOD2/CARD15-positive patient with Crohn's disease. Digestion 2006;73(2-3):107-10.
- Hui J, Ren Y, Wang Y, Han Q. Lactobacillus acidophilus endophthalmitis postcataract operation: A case report with a literature review. Ocul Immunol Inflamm 2023.
See these in context on the Lactobacillus Acidophilus monograph →
Bifidobacterium Longum 21 references
- Ha GY, Yang CH, Kim H, Chong Y. Case of sepsis caused by Bifidobacterium longum. J Clin Microbiol 1999;37:1227-8.
- Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
- Xiao JZ, Takahashi S, Odamaki T, et al. Antibiotic susceptibility of bifidobacterial strains distributed in the Japanese market. Biosci Biotechnol Biochem. 2010;74(2):336-42. PubMed
- Rautava S, Kainonen E, Salminen S, Isolauri E. Maternal probiotic supplementation during pregnancy and breast-feeding reduces the risk of eczema in the infant. J Allergy Clin Immunol. 2012;130(6):1355-60. PubMed
- 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.
- Pellonperä O, Vahlberg T, Mokkala K, et al. Weight gain and body composition during pregnancy: a randomised pilot trial with probiotics and/or fish oil. Br J Nutr. 2020 Nov 4:1-11. PubMed
- Pellonperä O, Mokkala K, Houttu N, et al. Efficacy of fish oil and/or probiotic intervention on the incidence of gestational diabetes mellitus in an at-risk group of overweight and obese women: A randomized, placebo-controlled, double-blind clinical trial PubMed
- Shahriari A, Karimi E, Shahriari M, Aslani N, Khooshideh M, Arab A. The effect of probiotic supplementation on the risk of gestational diabetes mellitus among high-risk pregnant women: A parallel double-blind, randomized, placebo-controlled clinical trial PubMed
- Esaiassen E, Hjerde E, Cavanagh JP, Simonsen GS, Klingenberg C; Norwegian Study Group on Invasive Bifidobacterial Infections. Bifidobacterium bacteremia: Clinical characteristics and a genomic approach to assess pathogenicity. J Clin Microbiol. 2017;55(7) PubMed
- Enomoto T, Sowa M, Nishimori K, et al. Effects of bifidobacterial supplementation to pregnant women and infants in the prevention of allergy development in infants and on fecal microbiota. Allergol Int 2014;63(4):575-85. PubMed
- US Food and Drug Administration (FDA). Dear Healthcare Provider Letter: Warning Regarding Use of Probiotics in Preterm Infants. September 2023. Available at: https://www.fda.gov/media/172606/download?attachment. Accessed November 1, 2023.
- Pillai A, Tan J, Paquette V, Panczuk J. Does probiotic bacteremia in premature infants impact clinically relevant outcomes? A case report and updated review of literature. Clin Nutr ESPEN. 2020;39:255-259. PubMed
- Sabaté JM, Iglicki F. Effect of Bifidobacterium longum 35624 on disease severity and quality of life in patients with irritable bowel syndrome. World J Gastroenterol 2022;28(7):732-744.
- Malaguarnera M, Greco F, Barone G, Gargante MP, Malaguarnera M, Toscano MA. Bifidobacterium longum with fructo-oligosaccharide (FOS) treatment in minimal hepatic encephalopathy: a randomized, double-blind, placebo-controlled study. Dig Dis Sci 2007;52(11) PubMed
- Zbinden A, Zbinden R, Berger C, Arlettaz R. Case series of Bifidobacterium longum bacteremia in three preterm infants on probiotic therapy. Neonatology 2015;107(1):56-9.
- Tamaki H, Nakase H, Inoue S, et al. Efficacy of probiotic treatment with Bifidobacterium longum 536 for induction of remission in active ulcerative colitis: A randomized, double-blinded, placebo-controlled multicenter trial. Dig Endosc 2016;28(1):67-74.
- Bertelli C, Pillonel T, Torregrossa A, et al. Bifidobacterium longum bacteremia in preterm infants receiving probiotics. Clin Infect Dis 2015;60(6):924-7. PubMed
- Esaiassen E, Cavanagh P, Hjerde E, Simonsen GS, Støen R, Klingenberg C. Bifidobacterium longum subspecies infantis bacteremia in 3 extremely preterm infants receiving probiotics. Emerg Infect Dis 2016;22(9):1664-6.
- Tena D, Losa C, Medina MJ, Sáez-Nieto JA. Peritonitis caused by Bifidobacterium longum: case report and literature review. Anaerobe 2014;27:27-30. PubMed
- Sangkanjanavanich S, Pradubpongsa P, Mitthamsiri W, Sangasapaviliya A, Boonpiyathad T. Bifidobacterium infantis 35624 efficacy in patients with uncontrolled asthma: A randomized placebo-controlled trial. Ann Allergy Asthma Immunol 2022;129(6):790-792. PubMed
- Wilson HL, Ong CW. Bifidobacterium longum vertebrodiscitis in a patient with cirrhosis and prostate cancer. Anaerobe 2017;47:47-50. PubMed
See these in context on the Bifidobacterium Longum 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