Methylsulfonylmethane (msm) + Treprostinil (Inh)
Treprostinil (Inh) brand name: Tyvaso.
We found no known interaction between Methylsulfonylmethane (msm) and Treprostinil (Inh) 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.
Methylsulfonylmethane (msm) and Treprostinil (Inh)
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 Treprostinil (Inh) and Methylsulfonylmethane (msm) 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 Methylsulfonylmethane (msm) at all — not against Treprostinil (Inh), 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.
Methylsulfonylmethane (msm) safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
What Treprostinil (Inh) Is Prescribed For, and What Methylsulfonylmethane (msm) Has Been Studied For
These two come up together because they touch the same health topic — not because they do the same job. Treprostinil (Inh) is a prescription medicine with approved uses on its FDA label. Methylsulfonylmethane (msm) is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.
Treprostinil (Inh) is prescribed for: Treprostinil oral inhalation is used to treat two serious lung conditions that raise pressure in the blood vessels of the lungs. It helps improve how much physical activity you can do. Tyvaso inhalation solution and Tyvaso DPI are both indicated to treat pulmonary arterial hypertension (PAH; WHO Group 1) and pulmonary hypertension associated with interstitial lung disease (PH-ILD; WHO Group 3). Clinical studies establishing effectiveness in PAH primarily included patients with moderate symptoms (NYHA Class III) whose PAH was idiopathic, heritable, or related to connective tissue disease.
Read the rest of what Treprostinil (Inh) is prescribed for
Studies in PH-ILD primarily included patients with idiopathic interstitial pneumonia, combined pulmonary fibrosis and emphysema, or connective tissue disease-related lung disease.
Methylsulfonylmethane (msm) has been studied for:
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Pneumonia studied, not established Methylsulfonylmethane (msm) has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows
Methylsulfonylmethane (msm) for pneumonia
Although there is interest in using oral MSM for pneumonia, there is insufficient reliable information about the clinical effects of MSM for this condition.
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 Treprostinil (Inh) on your own; if you are taking Methylsulfonylmethane (msm) for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.
See Every Supplement That Interacts With Treprostinil (Inh)
This page covers Methylsulfonylmethane (msm) only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Treprostinil (Inh) page lists 275 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: American Hellebore (major), American Mistletoe (major), Danshen (major), Piracetam (major) and Tyramine (major).
By severity: 5 major · 251 moderate · 19 minor.
From our pharmacist’s overview on the Treprostinil (Inh) page
“Inhaled treprostinil (Tyvaso) relaxes blood vessels in the lungs to treat pulmonary hypertension, and it also blunts platelet clotting, which is why this list of 275 ingredients warrants real vigilance rather than a shrug. Two themes cover almost everything.”
Reviewed by 2 · Jul 18, 2026
Where Methylsulfonylmethane (msm) and Treprostinil (Inh) 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.
#848 of 1,452 supplements looked up here in the last 7 days
#2,430 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 Methylsulfonylmethane (msm) reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Methylsulfonylmethane (msm) and Treprostinil (Inh) 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 Methylsulfonylmethane (msm)
What is Methylsulfonylmethane (msm)?
- Osteoarthritis and joint pain
- Muscle soreness after exercise
- Inflammation
- Skin and hair health
- Allergy symptoms
Methylsulfonylmethane (MSM) is a natural sulfur compound that people most often take for joint pain and exercise recovery. Some early research suggests it may modestly help osteoarthritis symptoms, but the evidence is limited and more study is needed. It appears generally well tolerated in the short term, but talk with your pharmacist or doctor before starting it.
Not applicable (a sulfur-containing compound) · Capsules, tablets, powders, creams, and combination joint supplements
An interaction check asks whether these two react with each other — it does not ask whether Methylsulfonylmethane (msm) is a good idea for someone in your situation. Here is what our Methylsulfonylmethane (msm) record says about it on its own.
Methylsulfonylmethane (msm): dosing
There is no official or standardized dose of MSM. Studies have used a wide range of amounts, and the best dose is not clearly established.The safest approach is to follow the directions on the product label and not take more than recommended. They can help you decide if it is appropriate and what amount is reasonable.
From our Methylsulfonylmethane (msm) monograph — the full record covers uses, side effects and every documented interaction.
About Treprostinil Oral Inhalation
What Is Treprostinil Oral Inhalation Used For?
Brand name: Tyvaso
Treprostinil oral inhalation is used to treat two serious lung conditions that raise pressure in the blood vessels of the lungs. It helps improve how much physical activity you can do.
Tyvaso inhalation solution and Tyvaso DPI are both indicated to treat pulmonary arterial hypertension (PAH; WHO Group 1) and pulmonary hypertension associated with interstitial lung disease (PH-ILD; WHO Group 3). Clinical studies establishing effectiveness in PAH primarily included patients with moderate symptoms (NYHA Class III) whose PAH was idiopathic, heritable, or related to connective tissue disease. Studies in PH-ILD primarily included patients with idiopathic interstitial pneumonia, combined pulmonary fibrosis and emphysema, or connective tissue disease-related lung disease.
Other Drugs & Methylsulfonylmethane (msm)
Browse every other medication we’ve checked against Methylsulfonylmethane (msm) — 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 Methylsulfonylmethane (msm) against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Ivermectin ›
- Metoprolol ›
- Aspirin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Acetaminophen ›
- Escitalopram ›
- Tadalafil ›
- Clopidogrel ›
- Abemaciclib ›
- Atorvastatin ›
- Docusate ›
- Valacyclovir ›
- Hydroxyurea ›
- Ibuprofen ›
- Tirzepatide ›
- Methamphetamine ›
- Warfarin Sodium ›
- Semaglutide ›
- Sumatriptan ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Metformin ›
- Lisinopril ›
- Amoxicillin ›
- Bupropion ›
- Bendamustine ›
- Amitriptyline ›
- Acyclovir ›
- Methotrexate ›
- Doxycycline ›
- Fluoxetine ›
- Amphetamine ›
- Lamotrigine ›
- Pregabalin ›
- Acetaminophen, Codeine ›
- Azithromycin ›
- Gabapentin ›
- Dextroamphetamine ›
- Isotretinoin ›
- Clonazepam ›
- Methylene Blue ›
- Amlodipine Besylate ›
- Omeprazole ›
- Quetiapine ›
- Letrozole ›
- Duloxetine ›
- Buspirone ›
- Naproxen ›
- Citalopram ›
- Ciprofloxacin ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Methylsulfonylmethane (msm) list.
Methylsulfonylmethane (msm) References
The 4 references that drive our Methylsulfonylmethane (msm) 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.
- Barrager E, Veltmann JR Jr, Schauss AG, Schiller RN. A multicentered, open-label trial on the safety and efficacy of methylsulfonylmethane in the treatment of seasonal allergic rhinitis. J Altern Complement Med 2002;8:167-73. PubMed
- Usha PR, Naidu MU. Randomised, Double-Blind, Parallel, Placebo-Controlled Study of Oral Glucosamine, Methylsulfonylmethane and their Combination in Osteoarthritis. Clin Drug Investig. 2004;24(6):353-63. PubMed
- Kim LS, Axelrod LJ, Howard P, et al. Efficacy of methylsulfonylmethane (MSM) in osteoarthritis pain of the knee: a pilot clinical trial. Osteoarthritis Cartilage 2006;14:286-94. PubMed
- Hwang JC, Khine KT, Lee JC, Boyer DS, Francis BA. Methyl-sulfonyl-methane (MSM)-induced acute angle closure. J Glaucoma. 2015 Apr-May;24(4):e28-30. 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.
Treprostinil (Inh) Is Linked to Lower Levels of One Nutrient
Natural Medicines records Treprostinil (Inh) as a medicine that can lower these. This is not an interaction with Methylsulfonylmethane (msm) — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Treprostinil (Inh) nutrient depletion report ›
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Methylsulfonylmethane (msm) and Treprostinil (Inh) Together: Common Questions
Is it safe to take Methylsulfonylmethane (msm) with Treprostinil (Inh)?
Do Methylsulfonylmethane (msm) and Treprostinil (Inh) have any of the same side effects?
Are Methylsulfonylmethane (msm) and Treprostinil (Inh) used for the same thing?
Does Treprostinil (Inh) 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.