Drug & supplement interaction

White Mulberry + Phenelzine Sulfate

Phenelzine Sulfate brand name: Nardil.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between White Mulberry and Phenelzine Sulfate 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 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.

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Interaction report

White Mulberry and Phenelzine Sulfate

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 Phenelzine Sulfate 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 Phenelzine Sulfate and White Mulberry? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Phenelzine Sulfate

Interactions in our licensed database are recorded against drug classes, not just single drug names. Phenelzine Sulfate is filed under 6 classifications — including monoamine oxidase inhibitors (maois), antidepressant drugs, serotonergic 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 Phenelzine Sulfate’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 — Phenelzine Sulfate 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. Phenelzine Sulfate)
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

No Interaction Found — But Data Suggests White Mulberry and Phenelzine Sulfate May Share a Side Effect

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • Constipation Additional detail

    White Mulberry

    “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

    Phenelzine Sulfate

    Listed in the ADVERSE REACTIONS section of the FDA label for Phenelzine Sulfate. Read the label on DailyMed ›

Reported for White Mulberry but not commonly for Phenelzine Sulfate: diarrhea and bloating or gas.

Effects for Phenelzine Sulfate come from the ADVERSE REACTIONS section of its FDA label; effects for White Mulberry come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 1,559 voluntary FDA FAERS reports for Phenelzine Sulfate that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

From our Q&A

Questions About White Mulberry or Phenelzine Sulfate

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 Phenelzine Sulfate, 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 Phenelzine Sulfate

This page covers White Mulberry only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Phenelzine Sulfate page lists 144 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Beer (major), Bitter Orange (major) and Brewer's Yeast (major).

By severity: 18 major · 111 moderate · 15 minor.

From our pharmacist’s overview on the Phenelzine Sulfate page

“Few medications demand as much dietary and supplement care as phenelzine sulfate (Nardil), an older MAOI antidepressant, and this list backs that up, with 18 of its 144 recorded interactions rated major. The two dominant themes are sedation and blood pressure.”

Reviewed by 2 · Jul 18, 2026

Open the Phenelzine Sulfate 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 Phenelzine Sulfate, 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 Phenelzine Sulfate 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 half

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

29 days ago today
Medication Phenelzine Sulfate
Top half

#965 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 13, 2026. The White Mulberry and Phenelzine Sulfate 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 Phenelzine

What Is Phenelzine Used For?

Brand name: Nardil

Phenelzine is used to treat depression — specifically the types described as atypical, nonendogenous, or neurotic depression. This often includes people who have a mix of anxiety and depression, or who have phobic or hypochondriacal features (strong fears about illness or physical symptoms).

It is generally not the first antidepressant a doctor will try. It is best suited for patients who have already tried other antidepressants without enough relief. There is less evidence supporting its use in severe depression with classic biological features (called endogenous depression).

Most-Reported Side Effects for Phenelzine Sulfate

From FAERS, the FDA’s public side-effect reporting system (1,563 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Depression 187 reports
Headache 138 reports
Anxiety 129 reports
Weight increased 122 reports
Insomnia 104 reports
See full Phenelzine 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 Phenelzine Sulfate, 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 Phenelzine Sulfate Together: Common Questions

Is it safe to take White Mulberry with Phenelzine Sulfate?
We do not list a known interaction between White Mulberry and Phenelzine Sulfate. 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.
Do White Mulberry and Phenelzine Sulfate have any of the same side effects?
Yes — our sources link each of them separately to one of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
How was the White Mulberry and Phenelzine Sulfate combination checked?
Interactions in our licensed database are recorded against drug classes. Phenelzine Sulfate is filed under 6 classifications, and White Mulberry has documented interactions with 2 drug classes — none of Phenelzine Sulfate'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 — Phenelzine Sulfate 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 Phenelzine Sulfate interact with any supplements?
Yes. Phenelzine Sulfate has documented interactions with 144 supplements in our database — White Mulberry is not one of them. The Phenelzine Sulfate 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 Phenelzine drug information The full plain-English guide to this medication Phenelzine Sulfate supplement interactions Every supplement checked against Phenelzine Sulfate, 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 Phenelzine Sulfate and White Mulberry?

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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.