Drug & supplement interaction

Glyconutrients + Macitentan

Macitentan brand name: Opsumit.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Oct 4, 2026
The bottom line No known interaction

We found no known interaction between Glyconutrients and Macitentan 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

Glyconutrients and Macitentan

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 Macitentan and Glyconutrients 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.

Glyconutrients safety at a glance

Glyconutrients overall Use caution Generally low-risk for healthy adults, but benefits are unproven and product quality varies.
Pregnancy Avoid Safety has not been studied, so it is best to avoid during pregnancy.
Breastfeeding Avoid Not enough safety data, so avoid while breastfeeding.

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

Still wondering about combining Macitentan and Glyconutrients? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Macitentan

Interactions in our licensed database are recorded against drug classes, not just single drug names. Macitentan is filed under 4 classifications — including antihypertensive drugs, hepatotoxic drugs, cytochrome p450 3a4 (cyp3a4) substrates. Glyconutrients has documented interactions with 1 drug class — the most serious being immunosuppressants (moderate) — and none of Macitentan’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

Glyconutrients Does Interact With Other Medications

Glyconutrients has 121 moderate known drug interactions in our database — Macitentan isn’t one of them. If you take anything else, check it against the full list below.

Moderate 121 No known interaction 2,709 (incl. Macitentan)
Taking anything else?

Check Another of Your Medications Against Glyconutrients

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

What to actually watch for

What Glyconutrients Itself Has Been Linked To

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

  • Bloating or gas Additional detail

    “Orally, glyconutrients appear to be well tolerated. Side effects reported in clinical research have included gastrointestinal symptoms such as flatulence”

    Glyconutrients · Natural Medicines adverse-effect record, reported in flatulence.

    1 source cited
    1. 26790. Best T, Kemps E, Bryan J. Perceived changes in well-being following polysaccharide intake in middle-aged adults. Applied Res Qual Life 2012;7(2):183-192. DOI

    “Orally, side effects of glyconutrients reported in clinical research have included gastrointestinal symptoms such as flatulence.”

    Glyconutrients · Natural Medicines adverse-effect record, reported in flatulence.

    1 source cited
    1. 26790. Best T, Kemps E, Bryan J. Perceived changes in well-being following polysaccharide intake in middle-aged adults. Applied Res Qual Life 2012;7(2):183-192. DOI

Everything above comes from the Natural Medicines adverse-effect record for Glyconutrients — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Macitentan’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Macitentan column appears here.

Everything else you take

See Every Supplement That Interacts With Macitentan

This page covers Glyconutrients only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Macitentan page lists 253 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Beer (major) and Grapefruit (major).

By severity: 9 major · 205 moderate · 39 minor.

From our pharmacist’s overview on the Macitentan page

“If you take macitentan (Opsumit) for pulmonary arterial hypertension, study this page rather than skim it. It lists 253 supplement and herbal ingredients, nine rated major.”

Reviewed by 2 · Jul 18, 2026

Open the Macitentan interaction page

How much people look this up

Where Glyconutrients and Macitentan 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 Glyconutrients
Steady interest

#1,273 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Macitentan
Top 25%

#507 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 Glyconutrients reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Glyconutrients and Macitentan records this page draws on were last updated July 11, 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 Glyconutrients

What is Glyconutrients?

  • General immune support
  • Overall wellness and energy
  • Cognitive or memory support
  • Inflammation
  • Digestive health

Glyconutrients are supplements containing certain sugar molecules (monosaccharides) that marketers claim are essential for cell communication and health. The science behind most health claims is weak and largely promotional, and your body already makes these sugars from a normal diet. They are generally low-risk, but talk to your pharmacist or doctor before using them, and don't rely on them to treat any disease.

Not a single plant; refined sugars (monosaccharides) from sources like aloe vera, gums, larch, mushrooms, and seaweeds · Capsules, powders, chewable tablets, drink mixes

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

Glyconutrients: dosing

There is no official or standardized dose for glyconutrients. Products differ widely in their ingredients and strength, so a single recommended amount does not exist.If you choose to try one, follow the directions on the product label and do not take more than suggested. Choose products from reputable brands that use third-party testing when possible.

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

Read the full Glyconutrients monograph & all interactions
Medication

About Macitentan

What Is Macitentan Used For?

Brand name: Opsumit

Macitentan tablets — sold under the brand name Opsumit — are used to treat pulmonary arterial hypertension (PAH, WHO Group I), a type of high blood pressure in the arteries of the lungs. The goal is to slow the disease from getting worse and to lower the chance of being hospitalized because of PAH.

In the key clinical study, macitentan was used in adults with mainly moderate-to-severe PAH symptoms. Patients had PAH caused by unknown or inherited causes, connective tissue disorders, or congenital heart disease with repaired shunts.

Most-Reported Side Effects for Macitentan

From FAERS, the FDA’s public side-effect reporting system (68,860 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Dyspnea 11,958 reports
Headache 8,323 reports
Diarrhea 6,584 reports
Nausea 5,972 reports
Fatigue 5,041 reports
See full Macitentan drug information
Keep checking

Other Drugs & Glyconutrients

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

0Major
121Moderate
0Minor
2,708No known interaction
121 Moderate 2,708 No interaction
Moderate

121 interactions

Showing 60 of 121 moderate interactions — see all 121 on the Glyconutrients page.

No interaction 2,708 drugs checked — show the list

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

Showing the 60 most looked-up of 2,708 medications checked with no known interaction — see the full Glyconutrients list.

See the full Glyconutrients interactions page
See every supplement checked against Macitentan, ranked by severity
Evidence & sources

Glyconutrients References

The 9 references that drive our Glyconutrients 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. Best T, Kemps E, Bryan J. Saccharide effects on cognition and well-being in middle-aged adults: a randomized controlled trial. Dev Neuropsychol 2010;35(1):66-80. PubMed
  2. Dykman KD, Dykman RA. Effect of nutritional supplements on attentional-deficit hyperactivity disorder. Integr Physiol Behav Sci 1998;33(1):49-60. PubMed
  3. Dykman K, Ford CR, Gardiner T. The effect of glyconutritional supplementation on toddlers with failure to thrive. Glycoscience Nutr 2000;1(36):1-7.
  4. Best T, Kemps E, Bryan J. Perceived changes in well-being following polysaccharide intake in middle-aged adults. Applied Res Qual Life 2012;7(2):183-192. DOI
  5. Lefkowitz DL, Stuart R, Gnade BT, Roberts E, Lefkowitz SS. Effects of a glyconutrient on macrophage functions. Int J Immunopharmacol 2000;22(4):299-308. PubMed
  6. See DM, Cimoch P, Chou S, Chang J, Tilles J. The in vitro immunomodulatory effects of glyconutrients on peripheral blood mononuclear cells of patients with chronic fatigue syndrome. Integr Physiol Behav Sci 1998;33(3):280-287. PubMed
  7. Best T, Bryan J, Burns N. An investigation of the effects of saccharides on the memory performance of middle-aged adults. J Nutr Health Aging 2008;12(9):657-662. PubMed
  8. Stancil AN, Hicks LH. Glyconutrients and perception, cognition, and memory. Percept Mot Skills 2009;108(1):259-270. PubMed
  9. Haji, Faraji M. and Haji, Tarkhani A. The effect of sour tea (Hibiscus sabdariffa) on essential hypertension. J.Ethnopharmacol. 1999;65(3):231-236. 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 Glyconutrients and Macitentan Together: Common Questions

Is it safe to take Glyconutrients with Macitentan?
We do not list a known interaction between Glyconutrients and Macitentan. 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 Glyconutrients and Macitentan combination checked?
Interactions in our licensed database are recorded against drug classes. Macitentan is filed under 4 classifications, and Glyconutrients has documented interactions with 1 drug class — none of Macitentan'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 Glyconutrients interact with any other medications?
Yes. Glyconutrients has 121 documented drug interactions in our database — Macitentan 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 Macitentan interact with any supplements?
Yes. Macitentan has documented interactions with 253 supplements in our database — Glyconutrients is not one of them. The Macitentan 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

Glyconutrients monograph Uses, safety profile, and every drug interaction in one place Macitentan drug information The full plain-English guide to this medication Macitentan supplement interactions Every supplement checked against Macitentan, 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 9 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Macitentan and Glyconutrients?

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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.