Drug & supplement interaction

White Mulberry + Psyllium (OTC drug)

Psyllium (OTC drug) brand name: Metamucil.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 27, 2026
The bottom line No known interaction

We found no known interaction between White Mulberry and Psyllium (OTC drug) 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.

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Interaction report

White Mulberry and Psyllium (OTC drug)

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 Psyllium (OTC drug) and White Mulberry 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.

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.

White Mulberry safety at a glance

White Mulberry overall Use caution Likely safe as a food, but concentrated supplements are less studied and may lower blood sugar.
Pregnancy Avoid Not enough safety data; avoid medicinal amounts during pregnancy.
Breastfeeding Avoid Not enough safety data; avoid medicinal amounts while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Pharmacist analysis

White mulberry is not known to have many clinically significant drug interactions.

While our drug-herb interaction checker does list potential interactions with antidiabetic drugs and drugs that are affected by a protein known as OCT2, it is generally thought these are clinically insignificant for most individuals as they are theoretical and have not been seen in humans.

Nevertheless, it is important to be cautious if you take any drug that our tool shows an interaction for.

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Still wondering about combining Psyllium (OTC drug) and White Mulberry? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Psyllium (OTC drug)

Interactions in our licensed database are recorded against drug classes, not just single drug names. Psyllium (OTC drug) is filed under a single classification — oral drugs. White Mulberry has documented interactions with 2 drug classes — the most serious being antidiabetes drugs (moderate) and organic cation transporter 2 (oct2) substrates (moderate) — and none of Psyllium (OTC drug)’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

White Mulberry Does Interact With Other Medications

White Mulberry has 87 moderate known drug interactions in our database — Psyllium (OTC drug) isn’t one of them. If you take anything else, check it against the full list below.

Moderate 87 No known interaction 2,743 (incl. Psyllium (OTC drug))
Taking anything else?

Check Another of Your Medications Against White Mulberry

Covers the 2,830 medications we’ve checked against White Mulberry. Pick one to open its full report.

What to actually watch for

What White Mulberry Itself Has Been Linked To

This is not an interaction — nothing below involves Psyllium (OTC drug). It is the side-effect record for White Mulberry on its own, from the licensed Natural Medicines monograph. If something new turns up after you add White Mulberry, this list is the first place to look.

  • Bloating or gas / Constipation / Diarrhea Additional detail

    “Orally, white mulberry leaf powder 4.6 grams three times daily for 4 weeks was associated with bloating and flatulence in 50% of patients, loose stools in 25% of patients, and constipation in 21% of patients in one clinical study. However, reports of these adverse effects decreased over the course of the 12-week study, suggesting that for some patients the adverse effects may be transient in nature.”

    White Mulberry · Natural Medicines adverse-effect record, reported in constipation.

    1 source cited
    1. 103870. Thaipitakwong T, Supasyndh O, Rasmi Y, Aramwit P. A randomized controlled study of dose-finding, efficacy, and safety of mulberry leaves on glycemic profiles in obese persons with borderline diabetes. Complement Ther Med. 2020;49:102292. PubMed

Everything above comes from the Natural Medicines adverse-effect record for White Mulberry — expand a row for the licensed statement it rests on. We haven’t matched Psyllium (OTC drug) to its FDA label in our system yet, so we can’t compare its own side-effect list here — the leaflet that comes with your prescription is the authoritative list for Psyllium (OTC drug).

From our Q&A

Questions About White Mulberry or Psyllium (OTC drug)

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers White Mulberry or Psyllium (OTC drug), 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.

Everything else you take

See Every Supplement That Interacts With Psyllium (OTC drug)

This page covers White Mulberry only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Psyllium (OTC drug) 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 Psyllium (OTC drug) page

“Activated charcoal tops the psyllium (Metamucil) list and is the one entry rated major. Charcoal binds many medicines in the gut and can cut how much of them reaches the body, so pairing it with anything you take by mouth deserves real caution, and I would read that entry before the rest.”

Reviewed by 2 · Jul 18, 2026

Open the Psyllium (OTC drug) interaction page

One more smart check

Taking White Mulberry as Part of a Dietary Supplement Product? Check It for Interactions

We hold 282 real supplement products containing White Mulberry, each one broken down to its full ingredient list — and combination products often carry several ingredients besides White Mulberry. Even though White Mulberry itself has no known interaction with Psyllium (OTC drug), another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where White Mulberry and Psyllium (OTC drug) 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.

Supplement White Mulberry
Top 25%

#339 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Psyllium (OTC drug)
Top half

#1,412 of 2,830 medications looked up here in the last 7 days

29 days ago today

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 White Mulberry reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The White Mulberry and Psyllium (OTC drug) 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.
Data structure & sourcing designed and verified by .
Supplement

About White Mulberry

What is White Mulberry?

White Mulberry
  • Blood sugar support
  • High cholesterol
  • Weight management
  • Antioxidant support
  • High blood pressure (traditional use)

White mulberry leaf is most studied for helping blunt the rise in blood sugar after meals, but the human evidence is limited and not strong. It is generally well tolerated as a food and tea, but talk to your pharmacist or doctor before using concentrated supplements, especially if you take diabetes medicine.

Morus alba · Moraceae · Leaves, fruit (berries), root bark, and twigs · Capsules, tablets, leaf tea, powdered leaf extract, dried fruit, liquid extracts

An interaction check asks whether these two react with each other — it does not ask whether White Mulberry is a good idea for someone in your situation. Here is what our White Mulberry record says about it on its own.

White Mulberry: dosing

There is no officially established standard dose for white mulberry supplements. Doses used in studies have varied widely depending on the plant part and extract, and there is not enough consistent research to recommend a specific milligram amount.If you choose to use it, follow the directions on the product label and do not exceed the suggested amount.

From our White Mulberry monograph — the full record covers uses, side effects and every documented interaction.

Read the full White Mulberry monograph & all interactions
Medication

About Psyllium

What Is Psyllium Used For?

Brand name: Metamucil

Psyllium is used to treat occasional constipation and help restore regularity. It is available under many brand names — including Careone, Best Choice, Premier Value Fiber, fiber laxative, meijer fiber laxative, Publix, Best Choice Fiber Therapy, Daily Fiber, Dr. Fibra, Lidl Orange Smooth Fiber Powder, and meijer fiber therapy — all for this same purpose.

Most products note that psyllium generally produces a bowel movement within 12 to 72 hours of taking a dose.

See full Psyllium drug information
Keep checking

Other Drugs & White Mulberry

Browse every other medication we’ve checked against White Mulberry — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
87Moderate
0Minor
2,742No known interaction
87 Moderate 2,742 No interaction
Moderate

87 interactions

Showing 60 of 87 moderate interactions — see all 87 on the White Mulberry page.

No interaction 2,742 drugs checked — show the list

We also checked White Mulberry against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,742 medications checked with no known interaction — see the full White Mulberry list.

See the full White Mulberry interactions page
See every supplement checked against Psyllium (OTC drug), ranked by severity
Evidence & sources

White Mulberry References

The 6 references that drive our White Mulberry 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.

  1. Andallu B, Suryakantham V, Lakshmi Srikanthi B, Reddy GK. Effect of mulberry (Morus indica L.) therapy on plasma and erythrocyte membrane lipids in patients with type 2 diabetes. Clin Chim Acta 2001;314:47-53. PubMed
  2. Mudra M, Ercan-Fang N, Zhong L, et al. Influence of mulberry leaf extract on the blood glucose and breath hydrogen response to ingestion of 75 g sucrose by type 2 diabetic and control subjects. Diabetes Care 2007;30:1272-4. PubMed
  3. Kimura T, Nakagawa K, Kubota H, et al. Food-grade mulberry powder enriched with 1-deoxynojirimycin suppresses the elevation of postprandial blood glucose in humans. J Agric Food Chem 2007;55:5869-74. PubMed
  4. Huh HW, Na YG, Bang KH, et al. Extended intake of mulberry leaf extract delayed metformin elimination via inhibiting the organic cation transporter 2. Pharmaceutics. 2020;12(1):49. PubMed
  5. Thaipitakwong T, Supasyndh O, Rasmi Y, Aramwit P. A randomized controlled study of dose-finding, efficacy, and safety of mulberry leaves on glycemic profiles in obese persons with borderline diabetes. Complement Ther Med. 2020;49:102292. PubMed
  6. Thondre PS, Lightowler H, Ahlstrom L, Gallagher A. Mulberry leaf extract improves glycaemic response and insulaemic response to sucrose in healthy subjects: results of a randomized, double blind, placebo-controlled study. Nutr Metab (Lond) 2021;18(1):41. 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.

Pharmacist Counseling Corner

Taking White Mulberry and Psyllium (OTC drug) Together: Common Questions

Is it safe to take White Mulberry with Psyllium (OTC drug)?
We do not list a known interaction between White Mulberry and Psyllium (OTC drug). That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
How was the White Mulberry and Psyllium (OTC drug) combination checked?
Interactions in our licensed database are recorded against drug classes. Psyllium (OTC drug) is filed under 1 classification, and White Mulberry has documented interactions with 2 drug classes — none of Psyllium (OTC drug)'s classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does White Mulberry interact with any other medications?
Yes. White Mulberry has 87 documented drug interactions in our database — Psyllium (OTC drug) is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Psyllium (OTC drug) interact with any supplements?
Yes. Psyllium (OTC drug) has documented interactions with 17 supplements in our database — White Mulberry is not one of them. The Psyllium (OTC drug) interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

White Mulberry monograph Uses, safety profile, and every drug interaction in one place Psyllium drug information The full plain-English guide to this medication Psyllium (OTC drug) supplement interactions Every supplement checked against Psyllium (OTC drug), ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 6 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Psyllium (OTC drug) and White Mulberry?

Our pharmacists answer your medication & supplement questions — free.

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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.