Interactions on record — worth a quick check against your medications. Based on 1 of 3 ingredients. Check your meds →
Dietary supplement

Kids Quick Melt Probiotic Sticks Wacky Watermelon Ingredients & Drug Interactions

by OLLY

Kids Quick Melt Probiotic Sticks Wacky Watermelon label
See full label image
Other (e.g. Tea Bag) Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Kids Quick Melt Probiotic Sticks Wacky Watermelon 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

Kids Quick Melt Probiotic Sticks Wacky Watermelon is a dietary supplement by OLLY with 3 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 NCFM. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Kids Quick Melt Probiotic Sticks Wacky Watermelon by OLLY

Ask about any prescription or over-the-counter medication and we check it for interactions with Kids Quick Melt Probiotic Sticks Wacky Watermelon by OLLY — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Kids Quick Melt Probiotic Sticks Wacky Watermelon by OLLY

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 Aug 13, 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 3 active ingredients.
  • “Multi-Strain Probiotic Blend” is a proprietary blend — the label doesn't break down how much of each component you get.

This product contains 3 active probiotic ingredients: Lactobacillus rhamnosus GG, Bifidobacterium lactis BL04, and Lactobacillus acidophilus NCFM. These are live, beneficial bacteria meant to support digestive and immune health.

The inactive ingredients include xylitol (a sweetener), natural flavor, malic acid, citric acid, silica, and coloring — they're there to make the stick taste like wacky watermelon and hold it 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: Support digestive and immune health.
  • We looked for evidence on: Antibiotic-associated diarrhea, Colic, Constipation, Lactose intolerance, Respiratory tract infections, Rotaviral diarrhea — and 3 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 "Insufficient Reliable Evidence To Rate" for Respiratory tract infections, Constipation, Lactose intolerance, Rotaviral diarrhea, and more.

Lactobacillus acidophilus has possibly effective evidence for irritable bowel syndrome (IBS), Helicobacter pylori infection, antibiotic-associated diarrhea, and bacterial vaginosis. It's rated possibly ineffective for atopic disease (allergic conditions), and the evidence for acute respiratory distress syndrome isn't reliable enough to rate yet.

For the other two strains in this blend, we don't hold effectiveness data in our records.

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 children and adults. That said, the safety data are limited — talk with your child's doctor before starting this product.

In rare cases, live probiotic organisms have been linked to serious infections (like bacteremia or sepsis) in vulnerable patients; most happen when bacteria move from other parts of the body. More commonly, kids may notice mild digestive side effects like stomach discomfort, bloating, gas, or loose stool, though these are uncommon.

During pregnancy, L. acidophilus is rated possibly safe, and data on safety while breastfeeding aren't on file — a conversation with your doctor or pharmacist is the best next step if you're considering it for a nursing mother.

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 concern. Taking this probiotic at the same time as an antibiotic might weaken the probiotic's effect, so ask your child's doctor or pharmacist how to space them out.

For the two probiotic strains we couldn't check, no interaction data are documented — but before adding this product to your child's medications, it's worth a quick review with your pharmacist or doctor.

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 product is an everyday probiotic for kids that may help with certain digestive or immune concerns. The main thing to watch is timing if your child is taking antibiotics — you'll want to space them apart.

If your child has any serious health conditions or takes prescription medicines, check with your child's doctor or pharmacist first.

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

Assessment coverage: 1 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Apr 25, 2019.

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 Kids Quick Melt Probiotic Sticks Wacky Watermelon, straight from the product label.

Brand OLLY
Barcode (UPC) 858158015649
Net contents 16 Stick(s)
Market status On market
Date entered into DSLD Apr 25, 2019
DSLD ID 201158
Product type Non-nutrient/non-botanical
Supplement form Other (e.g. Tea Bag)
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Children 4 or More Years of Age, Vegan, Vegetarian
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 Kids Quick Melt Probiotic Sticks Wacky Watermelon by OLLY, 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 Stick(s)
Maximum serving Sizes:
1 Stick(s)
Servings per container
16
UPC/BARCODE
858158015649
IngredientAmount% DV
Total Carbohydrates1 Gram(s)1%
Lactobacillus rhamnosus GG0 NP--
Bifidobacterium lactis BL040 NP--
Lactobacillus acidophilus NCFM0 NP--
Multi-Strain Probiotic Blend0 NP--

Other ingredients: Xylitol, Natural flavor, Malic Acid, Citric Acid, Silica, Coloring

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.
General Statements

Good bugs, good tummy There are more friendly bacteria in your kiddo's digestive tract than there are human cells in their whole entire body. When these good guys work together, your buddy's systems function at their best. Support those thriving little ecosystems daily with a blend of belly-beneficial probiotics, just like the ones we packed into every delicious OLLY Kids Quick Melt Probiotic Stick.

Find us at: Facebook Olly Instagram Pinterest Twitter @ollynutrition

5+ billion live cultures Melt in your mouth probiotics 3 Probiotics to Support Digestive & Immune Health Melts on your tongue With other Natural Flavors

Natural flavors

Good health takes guts Say hello to OLLY Kids Quick Melt Probiotic Sticks, a super delicious, multi-tasking blend of good bugs to help boost and support your kiddo's digestive health and overall wellness. Balancing little bellies is essential for happy digestion and a healthy immune system. Each yummy stick delivers 5.5 billion live cultures from a blend of three scientifically researched strains. They're perfectly portable and totally tasty, so it's easy to support happier tummies, healthy immune systems and big grins.

Suggested/Recommended/Usage/Directions

How to use 1 Tear open 2 Pour on tongue 3 Yum! No water needed

Suggested use: Ages 4+ take one stick daily. Slowly pour onto tongue, close mouth and allow powder to dissolve. Use under adult supervision.

FDA Statement of Identity

Probiotic Supplement

Formula

Popular culture OLLY Kids Quick Melt Probiotic Sticks contain 3 of the most beneficial probiotic strains around. The hero AKA: Bifidobacterium lactis BL04 This might guy gives your little one's natural defenses a boost. The best buddy AKA: Lactobacillus acidophilus NCFM A time-tested good bacteria, this guy is a belly's BFF. The A+ AKA: Lactobacillus rhamnosus GG This wise guy is one of the most studied probiotics.

Precautions

Processed in a facility with products that may contain soy, egg, peanuts, tree nuts, milk, fish, shellfish and wheat.

Take only as directed. Do not exceed suggested dosage.

If you have a medical condition or are on medication, please seek the advice of a qualified health care professional before using.

Do not use if sealed stick is open, torn or broken.

Keep out of the reach of children and pets

Storage

Store in a cool, dry place.

Formulation

No sugar added

Vegan

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.

Brand IP Statement(s)

2017 OLLY PBC

General

3085-01

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

See for yourself

Kids Quick Melt Probiotic Sticks Wacky Watermelon by OLLY label

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

Kids Quick Melt Probiotic Sticks Wacky Watermelon 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 Kids Quick Melt Probiotic Sticks Wacky Watermelon by OLLY

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Stick(s) Dosage formOther (e.g. Tea Bag) Servings per container16 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.

Multi-Strain Probiotic Blend

0 NP per serving

Other (inactive) ingredients: Xylitol, Natural flavor, Malic Acid, Citric Acid, Silica, Coloring. These complete the product’s ingredient list but are not active constituents.

Interaction report

Kids Quick Melt Probiotic Sticks Wacky Watermelon by OLLY Drug Interactions

Want to check YOUR meds against Kids Quick Melt Probiotic Sticks Wacky Watermelon?

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

Lactobacillus acidophilus NCFM 182

Individual Drug Interactions

The ingredients in Kids Quick Melt Probiotic Sticks Wacky Watermelon interact with 182 drugs. Click any drug to see the details.

1 of the 3 ingredients in Kids Quick Melt Probiotic Sticks Wacky Watermelon interact with drugs. Each result below shows which ingredient is responsible. Lactobacillus acidophilus NCFM

Each ingredient & the kinds of drugs it affects

For each ingredient in Kids Quick Melt Probiotic Sticks Wacky Watermelon 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.

Lactobacillus acidophilus NCFM1 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
Lactobacillus acidophilus NCFM full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Kids Quick Melt Probiotic Sticks Wacky Watermelon, from the product label.

OLLY

See all OLLY products
Name
OLLY Public Benefit Corp.
City
San Francisco
State
CA
ZipCode
94129
Phone Number
1-844-439-6559
Web Address
OLLY.com
Pharmacist Counseling Corner

Kids Quick Melt Probiotic Sticks Wacky Watermelon by OLLY: Common Questions

Does Kids Quick Melt Probiotic Sticks Wacky Watermelon by OLLY interact with any medications?
Yes. Based on its ingredients, Kids Quick Melt Probiotic Sticks Wacky Watermelon 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?
Kids Quick Melt Probiotic Sticks Wacky Watermelon contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I give this to my child while they're on an antibiotic?
Yes, but timing matters. Antibiotics can kill off the live organisms in this probiotic. Your child's doctor or pharmacist can suggest the best spacing — for example, giving the antibiotic a few hours before or after the probiotic stick.
Will this help my child's digestion?
Lactobacillus acidophilus has some evidence supporting it for irritable bowel syndrome and antibiotic-associated diarrhea. The evidence for general digestive health isn't clearly established in our data, so talk with your child's doctor about whether it's right for your situation.
What are the main side effects?
Most kids tolerate it fine. Uncommonly, they might notice mild stomach discomfort, bloating, gas, or loose stool. Serious side effects are very rare and mostly happen in vulnerable patients.
Is it safe if my child has a compromised immune system?
That's an important question for your child's doctor or pharmacist. While probiotics are generally well tolerated, rare serious infections linked to live probiotic bacteria have occurred in certain vulnerable patients — your child's healthcare provider needs to weigh the benefits and risks for your child's specific situation.
What does this probiotic actually do?
Probiotics are live, beneficial bacteria that support digestive and immune function. This one has evidence for helping with IBS, antibiotic-associated diarrhea, and certain infections, though results vary from child to child.
Can I use this if I'm breastfeeding and giving it to my baby?
The safety data while breastfeeding aren't on file for this ingredient. Talk with your doctor or pharmacist before giving it to a baby or using it yourself while nursing.

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

Not sure if Kids Quick Melt Probiotic Sticks Wacky Watermelon 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.

Kids Quick Melt Probiotic Sticks Wacky Watermelon label
Go deeper

The Full Monographs Behind Kids Quick Melt Probiotic Sticks Wacky Watermelon’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

Kids Quick Melt Probiotic Sticks Wacky Watermelon'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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