Drug & supplement interaction

Pipsissewa + Treprostinil (Oral)

Treprostinil (Oral) brand names: Remodulin, Orenitram.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Pipsissewa and Treprostinil (Oral) 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

Pipsissewa and Treprostinil (Oral)

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 (Oral) and Pipsissewa 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 Pipsissewa at all — not against Treprostinil (Oral), 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.

Pipsissewa safety at a glance

Pipsissewa overall Use caution Long traditional use exists, but modern safety and effectiveness data are limited.
Pregnancy Avoid Not enough safety data; avoid during pregnancy.
Breastfeeding Avoid No reliable safety information, so avoid while breastfeeding.

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

Still wondering about combining Treprostinil (Oral) and Pipsissewa? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Pipsissewa and Treprostinil (Oral) 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.

  • Vomiting Additional detail

    Pipsissewa

    “Orally, chronic use may lead to hydroquinone toxicity. Symptoms of hydroquinone toxicity include tinnitus, vomiting, delirium, convulsions, and collapse (11).”

    Pipsissewa · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    1 source cited
    1. 11. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.

    “Orally, chronic use may lead to hydroquinone toxicity. Symptoms of toxicity include vomiting (11).”

    Pipsissewa · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    1 source cited
    1. 11. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.

    Treprostinil (Oral)

    Listed in the ADVERSE REACTIONS section of the FDA label for Treprostinil (Oral). Read the label on DailyMed ›

Reported for Pipsissewa but not commonly for Treprostinil (Oral): seizures, confusion and ringing in the ears.

Effects for Treprostinil (Oral) come from the ADVERSE REACTIONS section of its FDA label; effects for Pipsissewa come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 121,656 voluntary FDA FAERS reports for Treprostinil (Oral) 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.

Everything else you take

See Every Supplement That Interacts With Treprostinil (Oral)

This page covers Pipsissewa only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Treprostinil (Oral) page lists 291 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), Danshen (major) and Piracetam (major).

By severity: 6 major · 258 moderate · 27 minor.

From our pharmacist’s overview on the Treprostinil (Oral) page

“With treprostinil (Orenitram), a medicine that opens narrowed lung arteries in pulmonary arterial hypertension, supplements deserve more scrutiny than usual. The drug widens blood vessels and dampens platelet clumping, and nearly everything on this list leans on one of those two levers.”

Reviewed by 2 · Jul 18, 2026

Open the Treprostinil (Oral) interaction page

One more smart check

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

We hold 113 real supplement products containing Pipsissewa, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Pipsissewa. Even though Pipsissewa itself has no known interaction with Treprostinil (Oral), 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 Pipsissewa and Treprostinil (Oral) 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 Pipsissewa
Steady interest

#1,027 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Treprostinil (Oral)
Top 25%

#404 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 Pipsissewa reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Pipsissewa and Treprostinil (Oral) 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 Pipsissewa

What is Pipsissewa?

Pipsissewa
  • Urinary tract support
  • Diuretic (increasing urine flow)
  • Mild inflammation
  • Fluid retention
  • Traditional remedy for kidney and bladder complaints

Pipsissewa is a North American forest herb with a long history of traditional use as a diuretic and urinary remedy, but modern human research is very limited. There is not enough good evidence to confirm it works for any health condition, and its safety has not been well studied, so use caution and talk with your pharmacist or doctor first.

Chimaphila umbellata · Ericaceae · Leaves and above-ground parts; sometimes the root · Tea (infusion), tincture, liquid extract, capsules, dried herb

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

Pipsissewa: dosing

There is no established standardized dose for pipsissewa. Traditional use varies widely depending on whether it is taken as a tea, tincture, or extract.If you choose to use a product, follow the directions on the label and do not exceed the recommended amount.

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

Read the full Pipsissewa monograph & all interactions
Medication

About Treprostinil

What Is Treprostinil Used For?

Brand names: Remodulin, Orenitram

Treprostinil treats pulmonary arterial hypertension (PAH; WHO Group 1) — high blood pressure in the arteries of the lungs. Depending on the product and route, it is used to improve exercise ability, delay disease progression, or reduce symptoms tied to physical activity. Remodulin and treprostinil injection products are also indicated for patients who need to transition away from another PAH medicine called epoprostenol.

Tyvaso, Tyvaso DPI, and Yutrepia (inhaled forms) are additionally approved to treat pulmonary hypertension associated with interstitial lung disease (PH-ILD; WHO Group 3) — lung-pressure problems caused by scarring or inflammation in the lung tissue itself. Orenitram (extended-release oral tablet) is specifically indicated to delay disease progression and improve exercise capacity in PAH.

See full Treprostinil drug information
Keep checking

Other Drugs & Pipsissewa

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

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

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

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Pipsissewa list.

See the full Pipsissewa interactions page
See every supplement checked against Treprostinil (Oral), ranked by severity
Evidence & sources

Pipsissewa References

The 1 references that drive our Pipsissewa 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. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.

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 Pipsissewa and Treprostinil (Oral) Together: Common Questions

Is it safe to take Pipsissewa with Treprostinil (Oral)?
We do not list a known interaction between Pipsissewa and Treprostinil (Oral). 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 Pipsissewa and Treprostinil (Oral) 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.
Does Treprostinil (Oral) interact with any supplements?
Yes. Treprostinil (Oral) has documented interactions with 291 supplements in our database — Pipsissewa is not one of them. The Treprostinil (Oral) 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

Pipsissewa monograph Uses, safety profile, and every drug interaction in one place Treprostinil drug information The full plain-English guide to this medication Treprostinil (Oral) supplement interactions Every supplement checked against Treprostinil (Oral), 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 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Treprostinil (Oral) and Pipsissewa?

Our pharmacists answer your medication & supplement questions — free.

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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.