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Dietary supplement

Advanced Acidophilus Ingredients & Drug Interactions

by Solgar

Advanced Acidophilus label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Advanced Acidophilus against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Advanced Acidophilus is a dietary supplement by Solgar 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 L. acidophilus. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Advanced Acidophilus by Solgar

Ask about any prescription or over-the-counter medication and we check it for interactions with Advanced Acidophilus by Solgar — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Advanced Acidophilus by Solgar

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 1 active ingredient.
  • “Advanced Acidophilus Complex” is a proprietary blend — the label gives one combined amount (83 mg) without saying how much of each component you get.

This product has one active ingredient: Advanced Acidophilus Complex, which contains Lactobacillus acidophilus, a beneficial live bacterium that naturally lives in your gut and helps support digestive health. The capsule itself is made with microcrystalline cellulose, vegetable magnesium stearate, and vegetable cellulose—all inactive ingredients that help hold the capsule together.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Moderate

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

Why this rating?
  • The label markets this product for: maintain healthy intestinal flora and digestive balance.
  • We looked for evidence on: Antibiotic-associated diarrhea, Bacterial vaginosis, Clostridioides difficile infection, Constipation, Irritable bowel syndrome (IBS), Lactose intolerance — and 4 related terms.
  • The strongest evidence on file: Lactobacillus Acidophilus is rated "Possibly Effective" for Antibiotic-associated diarrhea (Natural Medicines).
  • Also on file: Lactobacillus Acidophilus is rated "Possibly Effective" for Bacterial vaginosis, Irritable bowel syndrome (IBS).
  • Also on file: Lactobacillus Acidophilus is rated "Insufficient Reliable Evidence To Rate" for Constipation, Radiation-induced diarrhea, Lactose intolerance, Rotaviral diarrhea.

L. acidophilus is possibly effective for irritable bowel syndrome (IBS), bacterial vaginosis, Helicobacter pylori infection, and antibiotic-associated diarrhea. The evidence is mixed for other uses—it's possibly ineffective for atopic disease (like eczema and allergies), and there isn't enough reliable evidence yet to rate it for acute respiratory distress syndrome.

The evidence, ingredient by ingredient Lactobacillus Acidophilus

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

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

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Lactobacillus acidophilus is generally well tolerated in healthy adults and children. However, data are limited, so check with your doctor before use.

Because the product contains live microorganisms, there is a theoretical concern that it could cause infection in some patients—though serious cases are rare and typically happen in people with compromised immune systems or other risk factors. Mild gastrointestinal side effects like bloating, gas, stomach pain, or loose stools can occur but are uncommon.

There isn't enough data on file for Lactobacillus acidophilus in breastfeeding, so talk with your healthcare provider if you're nursing.

Side effects, ingredient by ingredient Lactobacillus Acidophilus

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Lactobacillus Acidophilus.
  • The most serious interaction on file is rated Moderate.
  • For scale: 182 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Antibiotic drugs are the main medication type to double-check before you start this product. Because L. acidophilus is a live organism, antibiotics can kill it and reduce the supplement's effectiveness.

Timing matters — ask your pharmacist when to take them separately.

Check your own medication Run your meds through the checker above

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 supplement may help with IBS, antibiotic-associated diarrhea, bacterial vaginosis, or H. pylori infection. If you take antibiotics, space this product several hours apart and check with your pharmacist.

Healthy people typically tolerate it well, but if you have a weakened immune system or serious illness, talk to your doctor first.

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

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Apr 23, 2020.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Advanced Acidophilus, straight from the product label.

Brand Solgar
Barcode (UPC) 033984000193
Net contents 250 Vegetable Capsule(s)
Market status On market
Date entered into DSLD Apr 23, 2020
DSLD ID 217189
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy Free, Sugar Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Advanced Acidophilus by Solgar, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Vegetable Capsule(s)
Maximum serving Sizes:
1 Vegetable Capsule(s)
UPC/BARCODE
033984000193
IngredientAmount% DV
Advanced Acidophilus Complex83 mg--
L. acidophilus0 NP--

Other ingredients: Advanced Acidophilus Complex, Microcrystalline Cellulose, Vegetable Magnesium Stearate, Vegetable Cellulose

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula

Solgar Advanced Acidophilus Vegetable Capsules are a source of L. acidophilus, a beneficial microorganism that naturally resides in the lower digestive tract.

Formulation

This product is formulated to protect these organism from stomach acidity, helping to maintain a healthy intestinal flora.

500 Million microorganisms per serving

100% Dairy, lactose & milk free (Contains no casein)

Suitable for vegetarians

Free of: Gluten, wheat, dairy, soy, yeast, sugar, artificial flavor, sweetener, preservatives and color.

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.

Brand IP Statement(s)

2012 Solgar, Inc.

LA-5 is a registered trademark of Chr. Hansen.

General Statements

Solgar since 1947 Enhanced series

Storage

Refrigeration optional

Store at room temperature or refrigerate. Although it is not required, refrigeration helps to further preserve the probiotic microorganisms.

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement for adults, take one (1) vegetable capsule two times daily, preferably with a meal or as directed by a healthcare practitioner.

Precautions

If you are pregnant, nursing, taking any medications or have a medical condition, please consult your healthcare practitioner before taking any dietary supplement.

Discontinue use and consult your healthcare practitioner if any adverse reactions occur.

Keep out of reach of children.

Do not use if outer bottle seal is missing or damaged.

Contains no major allergens

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

See for yourself

Advanced Acidophilus by Solgar label

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

Advanced Acidophilus label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Advanced Acidophilus by Solgar

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Vegetable Capsule(s) Dosage formCapsule Amounts shown are per serving.

Advanced Acidophilus Complex

83 mg per serving

Other (inactive) ingredients: Advanced Acidophilus Complex, Microcrystalline Cellulose, Vegetable Magnesium Stearate, Vegetable Cellulose. These complete the product’s ingredient list but are not active constituents.

Interaction report

Advanced Acidophilus by Solgar Drug Interactions

Want to check YOUR meds against Advanced Acidophilus?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
182Drugs
182 Moderate

Ingredients driving the most interactions

L. acidophilus 182

Individual Drug Interactions

The ingredients in Advanced Acidophilus interact with 182 drugs. Click any drug to see the details.

1 of the 1 ingredient in Advanced Acidophilus interact with drugs. Each result below shows which ingredient is responsible. L. acidophilus

Each ingredient & the kinds of drugs it affects

For each ingredient in Advanced Acidophilus 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.

L. acidophilus1 drug type · 182 drugs

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.

Likelihood Probable Evidence D
L. acidophilus full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Advanced Acidophilus, from the product label.

Solgar

See all Solgar products
Name
Solgar, Inc.
Street Address
500 Willow Tree Road
City
Leonia
State
NJ
ZipCode
07605
Phone Number
1-877-765-4274
Web Address
www.solgar.com
Pharmacist Counseling Corner

Advanced Acidophilus by Solgar: Common Questions

Does Advanced Acidophilus by Solgar interact with any medications?
Yes. Based on its ingredients, Advanced Acidophilus has a known interaction with 182 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Advanced Acidophilus contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Will this probiotic work if I'm taking an antibiotic?
Not as well if you take them at the same time. Antibiotics kill the live bacteria in this supplement. Your pharmacist can help you space them several hours apart so both can work better.
Does this product help with digestive issues?
It may help with irritable bowel syndrome, antibiotic-associated diarrhea, and some digestive problems. The evidence is strongest for these specific conditions, though everyone's body responds differently.
What side effects should I expect?
Most people don't experience any. Some notice mild stomach discomfort, bloating, or gas, but these are uncommon. If you have a weakened immune system, talk to your doctor first since live probiotics carry a small theoretical risk in that group.
Is it safe to take while pregnant?
The data suggest it's possibly safe during pregnancy, but there isn't a lot of information. Discuss it with your doctor or midwife to make sure it's right for your situation.
What does this probiotic actually do?
L. acidophilus is a beneficial bacterium that naturally lives in your gut and helps support digestive health and your immune system. It's used to help restore healthy gut bacteria, especially after antibiotics have disrupted them.

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

Not sure if Advanced Acidophilus is safe with your meds?

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Ask a pharmacist

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.

Advanced Acidophilus label
Go deeper

The Full Monographs Behind Advanced Acidophilus’s Ingredients

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

Herb & supplement monograph

Lactobacillus Acidophilus

Interacts with 182 drugs

Lactobacillus 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 →
Sources

Sources & How We Checked

Advanced Acidophilus's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 15 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
  1. Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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.
  7. 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
  8. 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
  9. 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.
  10. 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
  11. Ozer M, Goksu SY, Shahverdiani A, Mustafa M. Lactobacillus acidophilus-induced endocarditis and associated splenic abscess. Case Rep Infect Dis 2020;2020:1382709.
  12. 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
  13. 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
  14. 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.
  15. 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 →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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