Lactase + Bethanechol Chloride
Bethanechol Chloride brand name: Urecholine.
We found no known interaction between Lactase and Bethanechol Chloride in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the label for Bethanechol Chloride states a food rule worth keeping to.
Lactase and Bethanechol Chloride
We checked these two against our interaction database. Here is what we found.
No Known Interaction Found
We did not find a documented interaction between Bethanechol Chloride and Lactase in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.
Worth understanding: our licensed dataset holds no drug-interaction record for Lactase at all — not against Bethanechol Chloride, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.
If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.
Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.
Lactase safety at a glance
Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Lactase in Pregnancy & Breastfeeding
When used orally and appropriately with lactose-containing foods.
DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center
Some Bethanechol Chloride Products Have a Food Rule — Lactase Should Not Break It
At least one FDA label for a product containing Bethanechol Chloride says to take it with food. If you take Lactase on an empty stomach out of habit, keep them separate — and take Bethanechol Chloride with a meal where the label says to.
This may not be true of your version. Food instructions belong to the product, not the ingredient: two Bethanechol Chloride products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.
If taken soon after eating, nausea and vomiting may occur.
From the Dosage and Administration section of the FDA label we read for Bethanechol Chloride — where that label names a specific product, the instruction is that product's. See the Bethanechol Chloride drug page ›
A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.
See Every Supplement That Interacts With Bethanechol Chloride
This page covers Lactase only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Bethanechol Chloride page lists 38 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Bacopa (moderate), Bael (moderate), Betel Nut (moderate) and Boxwood (moderate).
By severity: 1 major · 27 moderate · 10 minor.
From our pharmacist’s overview on the Bethanechol Chloride page
“Anyone taking bethanechol chloride (Urecholine) for urinary retention should read this list carefully, starting with activated charcoal, the lone major-rated entry among the 38 ingredients here. Charcoal can bind bethanechol in the gut and sharply cut how much reaches your system, a real problem for a drug that has to get a sluggish bl…”
Reviewed by 2 · Jul 18, 2026
Taking Lactase as Part of a Dietary Supplement Product? Check It for Interactions
We hold 3,200 real supplement products containing Lactase, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Lactase. Even though Lactase itself has no known interaction with Bethanechol Chloride, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Lactase and Bethanechol Chloride Sit Against Everything Else
Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.
#87 of 1,452 supplements looked up here in the last 7 days
#2,431 of 2,830 medications looked up here in the last 7 days
Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.
Where does our data come from?
- Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
- Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Lactase reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Lactase and Bethanechol Chloride records this page draws on were last updated July 10, 2026.
- What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
About Lactase
What is Lactase?
- Lactose intolerance
- Gas and bloating after dairy
- Diarrhea from dairy foods
- Stomach cramps from milk products
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 reduce gas, bloating, cramping, and diarrhea when taken with dairy foods, and it is generally considered safe for most people. It treats symptoms only and does not cure lactose intolerance.
Enzyme (often sourced from yeast such as Kluyveromyces lactis or fungi like Aspergillus species) · Tablets, caplets, chewables, drops (liquid), and capsules
An interaction check asks whether these two react with each other — it does not ask whether Lactase is a good idea for someone in your situation. Here is what our Lactase record says about it on its own.
Lactase: dosing
There is no single official dose for lactase. The amount of enzyme is usually measured in FCC lactase units, and different products contain different strengths.In general, lactase is taken right before or with the first bite of a dairy-containing food or drink. With liquid drops, you can add them to milk and let it sit as directed on the label. Start with the smallest amount that controls your symptoms.
From our Lactase monograph — the full record covers uses, side effects and every documented interaction.
About Bethanechol
What Is Bethanechol Used For?
Brand name: Urecholine
Bethanechol Chloride Tablets are used to treat urinary retention — when the bladder holds urine but can't release it properly — in two specific situations: after surgery or childbirth (acute postoperative or postpartum nonobstructive urinary retention), and when weak bladder muscle caused by nerve problems (neurogenic atony) prevents normal emptying.
These are functional problems, meaning there's no physical blockage — the bladder simply isn't contracting the way it should.
Other Drugs & Lactase
Browse every other medication we’ve checked against Lactase — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Lactase against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Ivermectin ›
- Abemaciclib ›
- Aspirin ›
- Acetaminophen ›
- Metoprolol ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Tadalafil ›
- Docusate ›
- Tirzepatide ›
- Ibuprofen ›
- Methamphetamine ›
- Hydroxyurea ›
- Warfarin Sodium ›
- Valacyclovir ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Lisdexamfetamine ›
- Propranolol ›
- Metformin ›
- Amitriptyline ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Amlodipine Besylate ›
- Methotrexate ›
- Bendamustine ›
- Bupropion ›
- Amphetamine ›
- Doxycycline ›
- Fluoxetine ›
- Azithromycin ›
- Acyclovir ›
- Lamotrigine ›
- Pregabalin ›
- Dextroamphetamine ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Quetiapine ›
- Clonazepam ›
- Levothyroxine, Liothyronine ›
- Naproxen ›
- Omeprazole ›
- Letrozole ›
- Methylene Blue ›
- Duloxetine ›
- Buspirone ›
- Citalopram ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Lactase list.
Lactase References
The 1 references that drive our Lactase monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.
- 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
Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Taking Lactase and Bethanechol Chloride Together: Common Questions
Is it safe to take Lactase with Bethanechol Chloride?
Should I take Lactase and Bethanechol Chloride at the same time of day?
Does Bethanechol Chloride interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Bethanechol Chloride and Lactase?
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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.