Lac-Dose Ingredients & Drug Interactions
by Rugby
What is this page for?
First and foremost: checking Lac-Dose 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
Lac-Dose is a dietary supplement by Rugby with 1 active ingredient. Its ingredients are commonly taken for lactose intolerance, gas and bloating after dairy, diarrhea from dairy foods.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of Lac-Dose by Rugby
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
Lac-Dose contains one active ingredient: lactase, an enzyme your small intestine naturally makes to digest lactose — the main sugar in milk and dairy products. The tablet also contains inactive ingredients (sucrose, stearic acid, vegetable magnesium stearate, and sucralose) that help form and preserve the pill.
Does it work?
Strong evidence
Lactase is effective for lactose intolerance — the condition where your body doesn't make enough natural lactase enzyme, leaving you unable to digest dairy comfortably. The evidence for its use in premature infants or infant colic isn't established well enough in our data to rate it.
How safe is it?
Well-documented data
Lactase is generally well tolerated when you use it as directed. A rare occupational case of allergic contact dermatitis and nasal and eye allergies (immunoglobulin E-mediated allergic rhinoconjunctivitis) has been reported in a worker exposed to powdered lactase dust — true allergy to the enzyme itself is uncommon, but it can happen.
For pregnancy and breastfeeding, the safety data advises it's likely safe, though you should still check with your doctor or pharmacist before starting regular use during pregnancy or while nursing, since information is limited.
Meds to double-check
No known interactions
No interactions are documented in our data for the lactase in Lac-Dose. You're in the clear with medications, but confirm this with your own doctor or pharmacist if you're on anything new or if you have questions about your specific situation.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with clinical evidence supporting its stated purpose. No medication interactions are currently documented, and safety information is well characterized.
Lac-Dose is a straightforward enzyme supplement for people with lactose intolerance who want to eat dairy without digestive upset. It's generally well tolerated and doesn't interact with medications.
Because safety data in pregnancy is limited, talk with your doctor or pharmacist before regular use if you're pregnant or breastfeeding, and ask them about any concerns unique to your health.
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 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
General information
Key facts about Lac-Dose, straight from the product label.
| Brand | Rugby |
|---|---|
| Barcode (UPC) | 005364087063 |
| Net contents | 50 Capsule Shaped Tablet(s) |
| Market status | On market |
| Date entered into DSLD | Apr 25, 2019 |
| DSLD ID | 200857 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | All Other |
| Intended target group(s) | Adult (18 - 50 Years) |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Lac-Dose by Rugby, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Lactase | 0 NP | -- |
Other ingredients: Sucrose, Stearic Acid, Vegetable Magnesium Stearate, Sucralose
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula
(Lactose enzyme)
FDA Statement of Identity
Dietary Supplement
Brand IP Statement(s)
Compare to Lactase in Lactaid
Rugby Laboratories is not affiliated with the owner of the trademark Lactaid.
Precautions
Tamper resistant - Do not use if imprinted safety seal under cap is broken or missing
Keep out of reach of children
Suggested/Recommended/Usage/Directions
Directions: Swallow or chew 3 tablets before eating any food that contains lactose.
Storage
Keep bottle tightly closed. Store between 15(0)- 30(0)C (59(0)- 86(0)F).
General
Rev. 07/15 R-92 Re-order No. 370338
General Statements
50/60
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Lac-Dose by Rugby 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 Lac-Dose by Rugby
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size3 Tablet(s) Dosage formTablet Or Pill Servings per container17 Amounts shown are per serving.
Lactase
No knowninteractions
Lactase is a digestive enzyme supplement that helps people who lack enough natural lactase break down lactose, the sugar in milk and dairy. It can red...
Lactase monograph & interactionsOther (inactive) ingredients: Sucrose, Stearic Acid, Vegetable Magnesium Stearate, Sucralose. These complete the product’s ingredient list but are not active constituents.
Lac-Dose by Rugby Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Lac-Dose. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for Lac-Dose, from the product label.
Rugby
See all Rugby products- Name
- Rugby Laboratories
- Street Address
- 31778 Enterprise Drive
- City
- Livonia
- State
- MI
- ZipCode
- 48150
- Phone Number
- 1-800-645-2158
- Web Address
- www.rugbylaboratories.com
Lac-Dose by Rugby: Common Questions
Does Lac-Dose by Rugby interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Will Lac-Dose help me digest milk and dairy?
Can I take this while I'm pregnant?
What if I'm breastfeeding?
Can I be allergic to lactase?
What are the inactive ingredients?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Lac-Dose 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 Lac-Dose’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Lac-Dose'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 1 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.
Lactase 1 reference
- Laukkanen A, Ruoppi P, Remes S, Koistinen T, Mäkinen-Kiljunen S. Lactase-induced occupational protein contact dermatitis and allergic rhinoconjunctivitis. Contact Dermatitis. 2007;57(2):89-93. PubMed
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