Drug & supplement interaction

Mangosteen + Metformin, Sitagliptin

Metformin, Sitagliptin brand names: Janumet, Janumet XR.

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 Mangosteen and Metformin, Sitagliptin 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 Metformin, Sitagliptin 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.

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Interaction report

Mangosteen and Metformin, Sitagliptin

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 Metformin, Sitagliptin and Mangosteen 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.

Mangosteen safety at a glance

Mangosteen overall Use caution Generally considered safe as a food, but long-term safety of concentrated supplements is not well studied.
Pregnancy Avoid Not enough safety information; avoid supplement amounts during pregnancy.
Breastfeeding Avoid Not enough safety information; avoid supplement amounts while breastfeeding.

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

Still wondering about combining Metformin, Sitagliptin and Mangosteen? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Metformin, Sitagliptin

Interactions in our licensed database are recorded against drug classes, not just single drug names. Metformin, Sitagliptin is filed under 5 classifications — including organic cation transporter 2 (oct2) substrates, antidiabetes drugs, oral drugs. Mangosteen has documented interactions with 2 drug classes — the most serious being anticoagulant/antiplatelet drugs (moderate) and donepezil (aricept) (minor) — and none of Metformin, Sitagliptin’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

Mangosteen Does Interact With Other Medications

Mangosteen has 122 moderate, 3 minor known drug interactions in our database — Metformin, Sitagliptin isn’t one of them. If you take anything else, check it against the full list below.

Moderate 122 Minor 3 No known interaction 2,705 (incl. Metformin, Sitagliptin)
Taking anything else?

Check Another of Your Medications Against Mangosteen

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

What to actually watch for

No Interaction Found — But Data Suggests Mangosteen and Metformin, Sitagliptin May Share Several of the Same Side Effects

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. One of them is worth acting on rather than waiting out — marked below.

  • Kidney problems Worth acting on Additional detail

    Mangosteen

    “Orally, mangosteen extract up to 560 mg daily has been reported to cause abnormal urination. It is not known if this side effect was related to mangosteen. In one case report, a patient with chronic kidney disease and metabolic syndrome consumed mangosteen juice daily for 12 months and later presented with severe lactic acidosis.”

    Mangosteen · Natural Medicines adverse-effect record, reported in myasthenia gravis.

    2 sources cited
    1. 97877. Suthammarak W, Numpraphrut P, Charoensakdi R, et al. Antioxidant-enhancing property of the polar fraction of mangosteen pericarp extract and evaluation of its safety in humans. Oxid Med Cell Longev 2016;2016:1293036. PubMed
    2. 16399. Wong LP, Klemmer PJ. Severe lactic acidosis associated with juice of the mangosteen fruit Garcinia mangostana. Am J Kidney Dis 2008;51:829-33. PubMed

    Metformin, Sitagliptin

    Listed in the ADVERSE REACTIONS section of the FDA label for Metformin, Sitagliptin. Read the label on DailyMed ›

  • Stomach upset / Constipation / Diarrhea / Vomiting / Nausea Additional detail

    Mangosteen

    “Orally, mangosteen extract up to 560 mg daily has been reported to cause constipation, abnormal stool, abdominal discomfort, abdominal bloating, salivation, nausea and vomiting, and diarrhea. It is not known if these side effects were related to mangosteen.”

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

    1 source cited
    1. 97877. Suthammarak W, Numpraphrut P, Charoensakdi R, et al. Antioxidant-enhancing property of the polar fraction of mangosteen pericarp extract and evaluation of its safety in humans. Oxid Med Cell Longev 2016;2016:1293036. PubMed

    Metformin, Sitagliptin

    Listed in the ADVERSE REACTIONS section of the FDA label for Metformin, Sitagliptin. Read the label on DailyMed ›

  • A skin rash Additional detail

    Mangosteen

    “Orally, mangosteen extract up to 560 mg daily has been reported to cause skin rash. It is not known if this side effect was related to mangosteen.”

    Mangosteen · Natural Medicines adverse-effect record, reported in myasthenia gravis.

    1 source cited
    1. 97877. Suthammarak W, Numpraphrut P, Charoensakdi R, et al. Antioxidant-enhancing property of the polar fraction of mangosteen pericarp extract and evaluation of its safety in humans. Oxid Med Cell Longev 2016;2016:1293036. PubMed

    Metformin, Sitagliptin

    Listed in the ADVERSE REACTIONS section of the FDA label for Metformin, Sitagliptin. Read the label on DailyMed ›

  • Headache Additional detail

    Mangosteen

    “Orally, mangosteen extract up to 560 mg daily has been reported to cause mild tiredness, headache, dizziness, and malaise. It is not known if these side effects were related to mangosteen.”

    Mangosteen · Natural Medicines adverse-effect record, reported in cluster headache.

    1 source cited
    1. 97877. Suthammarak W, Numpraphrut P, Charoensakdi R, et al. Antioxidant-enhancing property of the polar fraction of mangosteen pericarp extract and evaluation of its safety in humans. Oxid Med Cell Longev 2016;2016:1293036. PubMed

    Metformin, Sitagliptin

    Listed in the ADVERSE REACTIONS section of the FDA label for Metformin, Sitagliptin. Read the label on DailyMed ›

Reported for Mangosteen but not commonly for Metformin, Sitagliptin: a stuffy or runny nose, weight loss, dizziness and tiredness.

Effects for Metformin, Sitagliptin come from the ADVERSE REACTIONS section of its FDA label; effects for Mangosteen come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

How to take them

Some Metformin, Sitagliptin Products Have a Food Rule — Mangosteen Should Not Break It

At least one FDA label for a product containing Metformin, Sitagliptin says to take it with food. If you take Mangosteen on an empty stomach out of habit, keep them separate — and take Metformin, Sitagliptin 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 Metformin, Sitagliptin 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.

2 DOSAGE AND ADMINISTRATION Take sitagliptin and metformin hydrochloride extended-release tablets orally once daily with a meal.

From the Dosage and Administration section of the FDA label we read for Metformin, Sitagliptin — 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.

Everything else you take

See Every Supplement That Interacts With Metformin, Sitagliptin

This page covers Mangosteen only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Metformin, Sitagliptin page lists 257 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Siberian Cocklebur (major), Acai (moderate), African Wild Potato (moderate) and Agaricus Mushroom (moderate).

By severity: 2 major · 217 moderate · 38 minor.

From our pharmacist’s overview on the Metformin, Sitagliptin page

“Many people prescribed metformin with sitagliptin (Janumet, Janumet XR) for type 2 diabetes also try herbs sold as blood sugar support, fenugreek among the most popular, and that habit is exactly where the risk on this page concentrates. Of 257 documented supplement interactions, 239 can push glucose in the same direction the medicatio…”

Reviewed by 2 · Jul 18, 2026

Open the Metformin, Sitagliptin interaction page

One more smart check

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

We hold 1,201 real supplement products containing Mangosteen, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Mangosteen. Even though Mangosteen itself has no known interaction with Metformin, Sitagliptin, 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 Mangosteen and Metformin, Sitagliptin 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 Mangosteen
Top 25%

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

29 days ago today
Medication Metformin, Sitagliptin
Top 25%

#648 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 Mangosteen reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Mangosteen and Metformin, Sitagliptin 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 Mangosteen

What is Mangosteen?

Mangosteen
  • Antioxidant support
  • Anti-inflammatory support
  • Immune support
  • Skin health
  • General wellness

Mangosteen is a tropical fruit whose rind is rich in plant compounds called xanthones that act as antioxidants. While it is popular in juices and supplements for inflammation, immune support, and general wellness, strong human evidence for these benefits is limited. It is likely fine as a food, but talk with your pharmacist or doctor before using concentrated supplements.

Garcinia mangostana · Clusiaceae · Fruit, and especially the rind (pericarp) · Juice, capsules, tablets, powders, dried rind, extracts

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

Mangosteen: dosing

There is no standard, well-established dose for mangosteen supplements. Products vary widely in strength and form, from juices to capsules to powders.The best advice is to follow the directions on the product label and not exceed the recommended amount.

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

Read the full Mangosteen monograph & all interactions
Keep checking

Other Drugs & Mangosteen

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

0Major
122Moderate
3Minor
2,704No known interaction
122 Moderate 3 Minor 2,704 No interaction
Moderate

122 interactions

Showing 60 of 122 moderate interactions — see all 122 on the Mangosteen page.

Minor

3 interactions

No interaction 2,704 drugs checked — show the list

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

Showing the 60 most looked-up of 2,704 medications checked with no known interaction — see the full Mangosteen list.

See the full Mangosteen interactions page
See every supplement checked against Metformin, Sitagliptin, ranked by severity
Evidence & sources

Mangosteen References

The 6 references that drive our Mangosteen 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. Chairungsrilerd N, Furukawa K, Ohta T, et al. Histaminergic and serotonergic receptor blocking substances from the medicinal plant Garcinia mangostana. Planta Med 1996;62:471-2.
  2. Wong LP, Klemmer PJ. Severe lactic acidosis associated with juice of the mangosteen fruit Garcinia mangostana. Am J Kidney Dis 2008;51:829-33. PubMed
  3. Furukawa, K., Chairungsrilerd, N., Ohta, T., Nozoe, S., and Ohizumi, Y. [Novel types of receptor antagonists from the medicinal plant Garcinia mangostana]. Nippon Yakurigaku Zasshi 1997;110 Suppl 1:153P-158P. PubMed
  4. Chairungsrilerd, N., Furukawa, K., Tadano, T., Kisara, K., and Ohizumi, Y. Effect of gamma-mangostin through the inhibition of 5-hydroxy-tryptamine2A receptors in 5-fluoro-alpha-methyltryptamine-induced head-twitch responses of mice. Br J Pharmacol. 1998
  5. Suthammarak W, Numpraphrut P, Charoensakdi R, et al. Antioxidant-enhancing property of the polar fraction of mangosteen pericarp extract and evaluation of its safety in humans. Oxid Med Cell Longev 2016;2016:1293036. PubMed
  6. Bae M, Han SY, Kim ES, et al. Effect of Water Extract of Mangosteen Pericarp on Donepezil Pharmacokinetics in Mice. Molecules 2021;26(17):5246. 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 Mangosteen and Metformin, Sitagliptin Together: Common Questions

Is it safe to take Mangosteen with Metformin, Sitagliptin?
We do not list a known interaction between Mangosteen and Metformin, Sitagliptin. 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 Mangosteen and Metformin, Sitagliptin have any of the same side effects?
Yes — our sources link each of them separately to 8 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.
Should I take Mangosteen and Metformin, Sitagliptin at the same time of day?
At least one FDA label for a product containing Metformin, Sitagliptin says to take it with food. If you take Mangosteen on an empty stomach out of habit, keep them separate and take Metformin, Sitagliptin with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Metformin, Sitagliptin products can differ — so check the directions on your own box. This is about absorption, not an interaction.
How was the Mangosteen and Metformin, Sitagliptin combination checked?
Interactions in our licensed database are recorded against drug classes. Metformin, Sitagliptin is filed under 5 classifications, and Mangosteen has documented interactions with 2 drug classes — none of Metformin, Sitagliptin'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 Mangosteen interact with any other medications?
Yes. Mangosteen has 125 documented drug interactions in our database — Metformin, Sitagliptin 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 Metformin, Sitagliptin interact with any supplements?
Yes. Metformin, Sitagliptin has documented interactions with 257 supplements in our database — Mangosteen is not one of them. The Metformin, Sitagliptin 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

Mangosteen monograph Uses, safety profile, and every drug interaction in one place Metformin, Sitagliptin supplement interactions Every supplement checked against Metformin, Sitagliptin, 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 Metformin, Sitagliptin and Mangosteen?

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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.