Polydextrose + Linaclotide
Linaclotide brand name: Linzess.
We found no known interaction between Polydextrose and Linaclotide 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 Linaclotide states a food rule worth keeping to, and the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.
Polydextrose and Linaclotide
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 Linaclotide and Polydextrose 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 Polydextrose at all — not against Linaclotide, 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.
Polydextrose safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Some Linaclotide Products Have a Food Rule — Polydextrose Should Not Break It
At least one FDA label for a product containing Linaclotide says to take it on an empty stomach. Most supplements — Polydextrose included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Linaclotide on its own and move Polydextrose to a meal later in the day.
This may not be true of your version. Food instructions belong to the product, not the ingredient: two Linaclotide 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.
Preparation and Administration Instructions • Take LINZESS on an empty stomach, at least 30 minutes prior to a meal at approximately the same time each day.
From the Dosage and Administration section of the FDA label we read for Linaclotide — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›
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.
What Linaclotide Is Prescribed For, and What Polydextrose Has Been Studied For
These two come up together because they touch the same health topic — not because they do the same job. Linaclotide is a prescription medicine with approved uses on its FDA label. Polydextrose is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.
Linaclotide is prescribed for: Linzess (linaclotide) treats three related conditions that cause difficult, infrequent bowel movements. In adults, it is approved for irritable bowel syndrome with constipation (IBS-C) and chronic idiopathic constipation (CIC — ongoing constipation with no identified cause). In children ages 7 and older, Linzess is approved for IBS-C. In children ages 2 and older, Linzess is approved for functional constipation (FC).
Polydextrose has been studied for:
-
Constipation studied, not established Polydextrose has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows
Polydextrose for constipation
It is unclear if oral polydextrose is beneficial in adults or children with constipation.
Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Linaclotide on your own; if you are taking Polydextrose for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.
Questions About Polydextrose or Linaclotide
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Polydextrose or Linaclotide, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:
Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.
See Every Supplement That Interacts With Linaclotide
This page covers Polydextrose only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Linaclotide page lists 17 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).
By severity: 1 major · 7 moderate · 9 minor.
From our pharmacist’s overview on the Linaclotide page
“Linaclotide (Linzess) treats IBS with constipation by acting inside the intestine itself, so the capsule's contents have to reach the gut unbound to do their job. That is exactly what the 17 supplements on this page can interfere with, and I would read the list with genuine care.”
Reviewed by 2 · Jul 18, 2026
Taking Polydextrose as Part of a Dietary Supplement Product? Check It for Interactions
We hold 37 real supplement products containing Polydextrose, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Polydextrose. Even though Polydextrose itself has no known interaction with Linaclotide, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Polydextrose and Linaclotide 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.
#479 of 1,452 supplements looked up here in the last 7 days
#1,523 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 Polydextrose reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Polydextrose and Linaclotide 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 Polydextrose
What is Polydextrose?
- Adding dietary fiber
- Supporting digestive regularity
- Sugar and fat replacement in foods
- Promoting gut bacteria (prebiotic)
- Helping with calorie reduction
Polydextrose is a man-made soluble fiber used widely in foods as a low-calorie bulking agent and prebiotic. It is generally well tolerated, though large amounts can cause gas, bloating, or loose stools. It is not a medicine and should not replace a balanced, fiber-rich diet.
Synthetic carbohydrate made from glucose (dextrose), sorbitol, and citric acid · Added to foods and drinks (baked goods, low-calorie products), powders, fiber supplements
An interaction check asks whether these two react with each other — it does not ask whether Polydextrose is a good idea for someone in your situation. Here is what our Polydextrose record says about it on its own.
Polydextrose: dosing
There is no official medicinal dose for polydextrose, since it is mainly used as a food ingredient rather than a medicine. The amount you get depends on the foods or supplements you choose.If you use a product that contains polydextrose, follow the directions on the label. As with any fiber, it is best to start with a small amount and increase gradually while drinking plenty of water.
From our Polydextrose monograph — the full record covers uses, side effects and every documented interaction.
About Linaclotide
What Is Linaclotide Used For?
Brand name: Linzess
Linzess (linaclotide) treats three related conditions that cause difficult, infrequent bowel movements. In adults, it is approved for irritable bowel syndrome with constipation (IBS-C) and chronic idiopathic constipation (CIC — ongoing constipation with no identified cause). In children ages 7 and older, Linzess is approved for IBS-C. In children ages 2 and older, Linzess is approved for functional constipation (FC).
Most-Reported Side Effects for Linaclotide
From FAERS, the FDA’s public side-effect reporting system (26,525 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Polydextrose
Browse every other medication we’ve checked against Polydextrose — 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 Polydextrose against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Ivermectin ›
- Losartan Potassium ›
- Aspirin ›
- Abemaciclib ›
- Acetaminophen ›
- Metoprolol ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Tadalafil ›
- Tirzepatide ›
- Methamphetamine ›
- Ibuprofen ›
- Warfarin Sodium ›
- Valacyclovir ›
- Hydroxyurea ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Amitriptyline ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Amlodipine Besylate ›
- Methotrexate ›
- Bendamustine ›
- Bupropion ›
- Amphetamine ›
- Doxycycline ›
- Fluoxetine ›
- Azithromycin ›
- Acyclovir ›
- Pregabalin ›
- Lamotrigine ›
- Dextroamphetamine ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Levothyroxine, Liothyronine ›
- Clonazepam ›
- Quetiapine ›
- Naproxen ›
- Omeprazole ›
- Letrozole ›
- Duloxetine ›
- Methylene Blue ›
- Buspirone ›
- Citalopram ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Polydextrose list.
Polydextrose References
The 7 references that drive our Polydextrose 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.
- Ziegler E, Vanderhoof JA, Petschow B, et al. Term infants fed formula supplemented with selected blends of prebiotics grow normally and have soft stools similar to those reported for breast-fed infants. J Pediatr Gastroenterol Nutr 2007;44(3):359-364. PubMed
- Flood MT, Auerbach MH, Craig SA. A review of the clinical toleration studies of polydextrose in food. Food Chem Toxicol 2004;42(9):1531-1542. PubMed
- Burdock GA, Flamm WG. A review of the studies of the safety of polydextrose in food. Food Chem Toxicol 1999;37(2-3):233-264. PubMed
- Saku K, Yoshinaga K, Okura Y, et al. Effects of polydextrose on serum lipids, lipoproteins, and apolipoproteins in healthy subjects. Clin Ther 1991;13(2):254-258.
- Tomlin J, Read NW. A comparative study of the effects on colon function caused by feeding ispaghula husk and polydextrose. Aliment Pharmacol Ther 1988;2(6):513-519. PubMed
- Ibarra A, Olli K, Pasman W, et al. Effects of polydextrose with breakfast or with a midmorning preload on food intake and other appetite-related parameters in healthy normal-weight and overweight females: An acute, randomized, double-blind, placebo-contro
- Colombo J, Carlson SE, Algarín C, et al. Developmental effects on sleep-wake patterns in infants receiving a cow's milk-based infant formula with an added prebiotic blend: a randomized controlled trial. Pediatr Res 2021;89(5):1222-31. 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 Polydextrose and Linaclotide Together: Common Questions
Is it safe to take Polydextrose with Linaclotide?
Do Polydextrose and Linaclotide have any of the same side effects?
Should I take Polydextrose and Linaclotide at the same time of day?
Are Polydextrose and Linaclotide used for the same thing?
Does Linaclotide interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.