Probiotic Complex 1 Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Probiotic Complex 1 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
Probiotic Complex 1 is a dietary supplement by GNC Probiotics with 1 active ingredient. 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 Probiotic Complex Blend. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Probiotic Complex 1 by GNC Probiotics
Ask about any prescription or over-the-counter medication and we check it for interactions with Probiotic Complex 1 by GNC Probiotics — 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
Ask the Pharmacist
A licensed pharmacist will answer your question by email — free, usually within 24 hours.
Got it — thank you!
A licensed pharmacist will answer within 24 hours. Keep an eye on your email (worth checking spam, just in case).
HelloPharmacist Scorecard of Probiotic Complex 1 by GNC Probiotics
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
This product contains 7 active probiotic ingredients: three Lactobacillus species (L. acidophilus, L. helveticus, and L. plantarum), three more lactobacilli (L. rhamnosus, L. fermentum), one Bifidobacterium species (B. bifidum), and Streptococcus thermophilus. These are live beneficial bacteria meant to support gut health.
The inactive ingredients—maltodextrin, microcrystalline cellulose, and several other binders and flow agents—help keep the bacteria stable and the tablet together.
Does it work?
Moderate evidence
The evidence for these bacteria is mixed. L. acidophilus and B. bifidum are both rated possibly effective for irritable bowel syndrome (IBS) and antibiotic-associated diarrhea (though B. bifidum's evidence for the latter is rated insufficient).
L. acidophilus may also help with bacterial vaginosis, while B. bifidum shows possibly effective evidence for respiratory tract infections. For the others—L. helveticus, L. plantarum, L. rhamnosus, L. fermentum, and S. thermophilus—the evidence we hold is either insufficient to rate or hasn't been established for the conditions they're used for.
How safe is it?
Well-documented data
These probiotic strains are generally well tolerated in healthy adults and children. The main caution is that they contain live, active organisms, so there's a theoretical risk of infection in people with severely weakened immune systems (such as those on certain medications or critically ill patients).
Gastrointestinal side effects like bloating, flatulence, abdominal discomfort, and mild diarrhea can occur but are uncommon. Rare cases of serious infection (bacteremia, sepsis) have been reported, but almost always in critically ill or immunocompromised patients, not in otherwise healthy people.
Pregnancy and breastfeeding safety data aren't on file for most of these ingredients; talk with your doctor or pharmacist before use if you're pregnant or nursing.
Meds to double-check
Moderate interaction found
If you take antibiotics, space out your dose of this probiotic—don't take them at the same time. That's the only documented Moderate-severity interaction we have on file.
No other medication interactions are documented for the ingredients we could check, but run your full medication list through the checker below to be sure.
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.
This product may help with IBS or antibiotic-associated diarrhea if you're otherwise healthy, but the evidence is modest. If you're on antibiotics, separate the timing to avoid the antibiotic killing off the live bacteria.
People with severely compromised immune systems should check with their doctor first. Talk to your pharmacist about your specific medications before starting.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 4 of 7 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Nov 25, 2013.
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 Probiotic Complex 1, straight from the product label.
| Brand | GNC Probiotics |
|---|---|
| Barcode (UPC) | 048107107185 |
| Net contents | 100 Tablet(s) |
| Market status | On market |
| Date entered into DSLD | Nov 25, 2013 |
| DSLD ID | 26361 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegetarian, Adult (18 - 50 Years), Gluten Free, Sugar Free |
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 Probiotic Complex 1 by GNC Probiotics, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Probiotic Complex Blend | 0 NP | -- |
| L. acidophilus | 0 NP | -- |
| L. plantarum | 0 NP | -- |
| L. rhamnosus | 0 NP | -- |
| L. fermentum | 0 NP | -- |
| L. helveticus | 0 NP | -- |
| B. bifidum | 0 NP | -- |
| S. thermophilus | 0 NP | -- |
Other ingredients: Maltodextrin, Microcrystalline Cellulose, Croscarmellose Sodium, Hydroxypropyl Cellulose, Stearic Acid, Magnesium Stearate, Guar Gum, Turmeric
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.
Precautions
KEEP OUT OF REACH OF CHILDREN.
CONTAINS: Milk.
General Statements
Promotes healthy digestion and immunity
Probiotics help to promote healthy digestion, support natural resistance and replenish beneficial, healthy bacteria that may be depleted as a result of poor diet, taking certain antibiotics, food poisoning, travelers' diarrhea or poor overall digestive health. This high quality, vegetarian formula blends key species of probiotics that play an important role in maintaining a healthy intestinal tract.
Lot No./Best By:
ACTUAL SIZE
(CFU = Colony Forming Units)
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.
Storage
Prior to opening, store in a cool, dry place. Refrigerate after opening.
Formula
1 BILLION CFUs
Suitable for individuals following a low lactose diet.
CONTAINS: Milk.
FDA Statement of Identity
DIETARY SUPPLEMENT
General
CODE 360823 FMG
Formulation
Vegetarian
No Sugar, No Artificial Colors, No Artificial Flavors, No Wheat, No Gluten, No Soy, Yeast Free.
Suggested/Recommended/Usage/Directions
Directions: As a dietary supplement, take one to four tablets daily prior to any meal.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Probiotic Complex 1 by GNC Probiotics 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 Probiotic Complex 1 by GNC Probiotics
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Tablet(s) Dosage formTablet Or Pill Amounts shown are per serving.
Probiotic Complex Blend
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...
Probiotic Complex Blend monograph & interactions- › L. acidophilus
- › L. plantarum
- › L. rhamnosus
- › L. fermentum
- › L. helveticus
- › B. bifidum
- › S. thermophilus
Other (inactive) ingredients: Maltodextrin, Microcrystalline Cellulose, Croscarmellose Sodium, Hydroxypropyl Cellulose, Stearic Acid, Magnesium Stearate, Guar Gum, Turmeric. These complete the product’s ingredient list but are not active constituents.
Probiotic Complex 1 by GNC Probiotics Drug Interactions
HelloPharmacist Interaction Report
GNC Probiotics' Probiotic Complex 1 contains several live bacterial strains, and the one interaction we've documented is with antibiotics.
L. acidophilus, L. helveticus, and B. bifidum all share the same Moderate-severity concern: antibiotics can kill the live organisms in the probiotic, potentially making the probiotic less effective. The fix is simple — space out when you take them, rather than at the same time.
Read the full breakdown — every affected drug type, severity by severity
We couldn't check L. plantarum, L. rhamnosus, L. fermentum, or L. helveticus for other drug interactions because we don't hold interaction data for those ingredients. S. thermophilus, by contrast, has been checked and shows no documented interactions with medications.
Although these are live organisms, documented interactions with non-antibiotic drugs are not on file for the ingredients we were able to review. Altogether, these interactions span 182 individual medications.
Run your exact prescriptions through the medication checker below before you start, especially if you're taking any antibiotics.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Probiotic Complex 1?
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 Probiotic Complex 1 interact with 182 drugs. Click any drug to see the details.
1 of the 1 ingredient in Probiotic Complex 1 interact with drugs. Each result below shows which ingredient is responsible. Probiotic Complex Blend
AmikacinAmikin, Arikayce
How Amikacin interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Amikacin interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Amikacin interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Amikacin interactionAmoxicillinAmix, Amoram, Amoxident, Amoxil Capsules, Amoxil Injection, Galenamox +3 more
How Amoxicillin interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Amoxicillin interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Amoxicillin interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Amoxicillin interactionAmoxicillin VeterinaryBiomox
How Amoxicillin Veterinary interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Amoxicillin Veterinary interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Amoxicillin Veterinary interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + 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 Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Amoxicillin, Clavulanate Potassium interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Amoxicillin, Clavulanate Potassium interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Amoxicillin, Clavulanate Potassium interactionAmoxicillin, Omeprazole Magnesium, RifabutinTalicia
How Amoxicillin, Omeprazole Magnesium, Rifabutin interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Amoxicillin, Omeprazole Magnesium, Rifabutin interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Amoxicillin, Omeprazole Magnesium, Rifabutin interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Amoxicillin, Omeprazole Magnesium, Rifabutin interactionAmphotericin, TetracyclineMysteclin-F
How Amphotericin, Tetracycline interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
B. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Amphotericin, Tetracycline interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Amphotericin, Tetracycline interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Amphotericin, Tetracycline interactionAmpicillinOmnipen, Omnipen-N, Penbritin, Principen, Rimacillin
How Ampicillin interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Ampicillin interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Ampicillin interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Ampicillin interactionAmpicillin, SulbactamUnasyn
How Ampicillin, Sulbactam interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Ampicillin, Sulbactam interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Ampicillin, Sulbactam interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Ampicillin, Sulbactam interactionAvibactam Sodium, CeftazidimeAvycaz
How Avibactam Sodium, Ceftazidime interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
B. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Avibactam Sodium, Ceftazidime interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Avibactam Sodium, Ceftazidime interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Avibactam Sodium, Ceftazidime interactionAzithromycinAzasite, Zithromax, Zmax
How Azithromycin interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Azithromycin interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Azithromycin interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Azithromycin interactionAztreonamAzactam
How Aztreonam interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Aztreonam interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Aztreonam interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Aztreonam interactionBacampicillinPenglobe
How Bacampicillin interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Bacampicillin interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Bacampicillin interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Bacampicillin interactionBacitracinBaci-IM, Baciguent, Bacitracin Ointment
How Bacitracin interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Bacitracin interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Bacitracin interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Bacitracin interactionBenznidazoleBenznidazole
How Benznidazole interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Benznidazole interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Benznidazole interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Benznidazole interactionBismuth Subsalicylate, Metronidazole, TetracyclineHelidac
How Bismuth Subsalicylate, Metronidazole, Tetracycline interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
B. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionCapreomycinCapastat
How Capreomycin interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Capreomycin interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Capreomycin interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Capreomycin interactionCarbenicillin Indanyl SodiumGeocillin
How Carbenicillin Indanyl Sodium interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Carbenicillin Indanyl Sodium interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Carbenicillin Indanyl Sodium interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Carbenicillin Indanyl Sodium interactionCefaclorCeclor, Ceclor CD
How Cefaclor interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefaclor interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefaclor interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefaclor interactionCefadroxilCef-Tab, Duricef, Ultracef
How Cefadroxil interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefadroxil interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefadroxil interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefadroxil interactionCefamandoleMandol
How Cefamandole interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
B. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefamandole interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefamandole interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefamandole interactionCefazolinAncef
How Cefazolin interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefazolin interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefazolin interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefazolin interactionCefdinirOmnicef
How Cefdinir interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefdinir interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefdinir interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefdinir interactionCefditoren PivoxilSpectracef
How Cefditoren Pivoxil interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
B. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefditoren Pivoxil interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefditoren Pivoxil interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefditoren Pivoxil interactionCefepimeMaxipime
How Cefepime interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefepime interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefepime interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefepime interactionCefiderocol Sulfate TosylateFetroja
How Cefiderocol Sulfate Tosylate interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefiderocol Sulfate Tosylate interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefiderocol Sulfate Tosylate interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefiderocol Sulfate Tosylate interactionCefiximeSuprax
How Cefixime interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefixime interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefixime interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefixime interactionCefmetazoleZefazone
How Cefmetazole interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefmetazole interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefmetazole interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefmetazole interactionCefonicidMonocid
How Cefonicid interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
B. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefonicid interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefonicid interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefonicid interactionCefoperazoneCefobid
How Cefoperazone interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefoperazone interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefoperazone interactionL. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefoperazone interactionCefotaximeClaforan
How Cefotaxime interacts with Probiotic Complex 1 — through 3 ingredients. Tap an ingredient for the detail:
L. AcidophilusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Acidophilus + Cefotaxime interactionL. HelveticusAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus helveticus with antibiotic drugs might decrease the effectiveness of L.
Read the full L. Helveticus + Cefotaxime interactionB. BifidumAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium.
Read the full B. Bifidum + Cefotaxime interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Probiotic Complex 1 with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
Probiotic Complex Blend
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.
Brand information
Manufacturer and brand details for Probiotic Complex 1, from the product label.
Probiotic Complex 1 by GNC Probiotics: Common Questions
Does Probiotic Complex 1 by GNC Probiotics interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take this with my antibiotic?
What side effects might I notice?
Is this actually proven to work?
Is it safe during pregnancy or breastfeeding?
What do these different bacterial strains do?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Probiotic Complex 1 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 Probiotic Complex 1’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 monographLactobacillus Helveticus
Interacts with 182 drugsLactobacillus helveticus is a lactic acid bacterium used as a probiotic, often combined with other strains in mood, gut, and general wellness products. Early research is interesting—especial...
Read the full Lactobacillus Helveticus monograph → Herb & supplement monographBifidobacterium Bifidum
Interacts with 182 drugsBifidobacterium bifidum is a 'friendly' bacteria (probiotic) that naturally lives in the human gut and is taken to support digestion and gut balance. Some evidence suggests probiotics may he...
Read the full Bifidobacterium Bifidum monograph → Herb & supplement monographStreptococcus Thermophilus
Streptococcus thermophilus is a friendly bacterium used as a probiotic, often combined with other strains in yogurt and supplements. It is generally well tolerated in healthy people and may...
Read the full Streptococcus Thermophilus monograph →Sources & How We Checked
Probiotic Complex 1'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 45 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 →
Lactobacillus Helveticus 2 references
- Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
- 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
See these in context on the Lactobacillus Helveticus monograph →
Bifidobacterium Bifidum 7 references
- 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
- Rerksuppaphol S, Rerksuppaphol L. Randomized controlled trial of probiotics to reduce common cold in schoolchildren. Pediatr Int. 2012;54(5):682-7. PubMed
- 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.
- 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.
- 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
See these in context on the Bifidobacterium Bifidum monograph →
Streptococcus Thermophilus 21 references
- Saxelin M, Chuang NH, Chassy B, et al. Lactobacilli and bacteremia in southern Finland 1989-1992. Clin Infect Dis 1996;22:564-6. PubMed
- 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
- 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:
- 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
- Goldin BR. Health Benefits of probiotics. Br J Nutr 1998;80:S203-7. DOI
- 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.
- MacGregor G, Smith AJ, Thakker B, Kinsella J. Yoghurt biotherapy: contraindicated in immunosuppressed patients? Postgrad Med J 2002;78:366-7. PubMed
- Land MH, Rouster-Stevens K, Woods CR, et al. Lactobacillus sepsis associated with probiotic therapy. Pediatrics 2005;115:178-81.
- 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
- 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
- Dolatkhah N, Hajifaraji M, Abbasalizadeh F, Aghamohammadzadeh N, Mehrabi Y, Abbasi MM. Is there a value for probiotic supplements in gestational diabetes mellitus? A randomized clinical trial. J Health Popul Nutr. 2015;33:25. 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.
- 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
- 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
- Pasala S, Singer L, Arshad T, Roach K. Lactobacillus endocarditis in a healthy patient with probiotic use. IDCases. 2020;22:e00915. PubMed
- 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.
- 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
- 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
- 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
- Campbell RE, Miller A, Afroze A. Native valve endocarditis secondary to Lactobacillus paracasei bacteremia. Consultant. 2020;60(9):27-8. DOI
- 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 Streptococcus Thermophilus 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