Drug & supplement interaction

Taurine + Treprostinil (Inh)

Treprostinil (Inh) brand name: Tyvaso.

Moderate Interaction
Medically reviewed by · Updated October 2026
The bottom line Moderate

Taurine has a moderate interaction with Treprostinil (Inh). Theoretically, taurine might increase the risk of hypotension when taken with antihypertensive drugs.

Read the full interaction report
SeverityModerate
LikelihoodProbable
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Taurine and Treprostinil (Inh)

Here is the interaction we found between these two, with the evidence behind it.

Moderate

ANTIHYPERTENSIVE DRUGS

Why this applies to Treprostinil (Inh)

Treprostinil (Inh) falls under ANTIHYPERTENSIVE DRUGS — the group Taurine interacts with.

Theoretically, taurine might increase the risk of hypotension when taken with antihypertensive drugs.
Some clinical evidence suggests that taurine can reduce both systolic and diastolic blood pressure.
Severity Moderate Likelihood Probable Evidence D

Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports..

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the simple version: inhaled treprostinil (Tyvaso) works by relaxing and widening blood vessels, so lowering blood pressure is part of how it does its job. Taurine, on the other hand, may nudge blood pressure down a little on its own. Put the two together and, at least in theory, you could get a bit more of a blood pressure drop than you'd expect.

If that happened, you might notice more dizziness, lightheadedness, headache, flushing, or feeling faint when you stand up. To be clear, this is a theoretical concern based on how these two work, not a well-documented, dangerous reaction, and small amounts of taurine (like in a single energy drink) are unlikely to cause trouble. Still, before starting a regular taurine supplement, run it by your pharmacist or doctor so they can keep an eye on your readings.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Fujita, T., Ando, K., Noda, H., Ito, Y., and Sato, Y. Effects of increased adrenomedullary activity and taurine in young patients with borderline hypertension. Circulation 1987;75(3):525-532. PubMed
  2. Sun Q, Wang B, Li Y, Sun F, et al. Taurine supplementation lowers blood pressure and improves vascular function in prehypertension: randomized, double-blind, placebo-controlled study. Hypertension 2016 Mar;67(3):541-9. PubMed
  3. Guan L, Miao P. The effects of taurine supplementation on obesity, blood pressure and lipid profile: A meta-analysis of randomized controlled trials. Eur J Pharmacol 2020;885:173533. PubMed

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Taurine Also Interacts With Other Medications

Taurine has 172 moderate known drug interactions in our database — the Treprostinil (Inh) one above is one of them. If you take anything else, check it against the full list below.

Moderate 172 No known interaction 2,658 (incl. Treprostinil (Inh))
Taking anything else?

Check Another of Your Medications Against Taurine

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

Everything else you take

See Every Supplement That Interacts With Treprostinil (Inh)

This page covers Taurine 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

Open the Treprostinil (Inh) interaction page

One more smart check

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

We hold 6,304 real supplement products containing Taurine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Taurine. Your product may carry other ingredients that interact with Treprostinil (Inh) too, on top of Taurine — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Taurine 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.

Supplement Taurine
Top 5%

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

29 days ago today
Medication Treprostinil (Inh)
Top half

#1,140 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.

Supplement

About Taurine

What is Taurine?

  • Exercise performance and endurance
  • Heart health
  • Energy support
  • Eye and nerve health
  • Blood sugar support

Taurine is an amino acid your body makes naturally and that you also get from animal foods. It is widely used in energy drinks and sports supplements, and short-term use appears generally safe for most adults, though the evidence for many claimed benefits is mixed or limited. Talk with your pharmacist or doctor before taking it regularly, especially if you have a health condition or take medications.

Read the full Taurine monograph & all interactions
Medication

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.

See full Treprostinil Oral Inhalation drug information
Keep checking

Other Drugs & Taurine

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

0Major
172Moderate
0Minor
2,657No known interaction
172 Moderate 2,657 No interaction
Moderate

172 interactions

Showing 60 of 172 moderate interactions — see all 172 on the Taurine page.

No interaction 2,657 drugs checked — show the list

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

Showing the 60 most looked-up of 2,657 medications checked with no known interaction — see the full Taurine list.

See the full Taurine interactions page
See every supplement checked against Treprostinil (Inh), ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Taurine monograph › Uses, safety, and every drug interaction in one place Treprostinil (Inh) supplement interactions › Every supplement checked against Treprostinil (Inh), ranked by severity Treprostinil Oral Inhalation drug information › The full plain-English guide to this medication Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Taurine and Treprostinil (Inh) Together: Common Questions

Can you take Taurine with Treprostinil (Inh)?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Taurine and Treprostinil (Inh) interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

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

Still Have a Question About Treprostinil (Inh) and Taurine?

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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.