Drug & supplement interaction

Stereospermum + Retifanlimab-Dlwr

Retifanlimab-Dlwr brand name: Zynyz.

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 Stereospermum and Retifanlimab-Dlwr 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

Stereospermum and Retifanlimab-Dlwr

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 Retifanlimab-Dlwr and Stereospermum 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.

Stereospermum safety at a glance

Stereospermum overall Not established Human safety data are very limited, so its overall safety is not well established.
Pregnancy Avoid Not enough safety information exists, so it is best avoided during pregnancy.
Breastfeeding Avoid There is no reliable safety data for breastfeeding, so avoid use.

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

Still wondering about combining Retifanlimab-Dlwr and Stereospermum? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
Keep it in perspective

Stereospermum Does Interact With Other Medications

Stereospermum has 86 moderate known drug interactions in our database — Retifanlimab-Dlwr isn’t one of them. If you take anything else, check it against the full list below.

Moderate 86 No known interaction 2,744 (incl. Retifanlimab-Dlwr)
Taking anything else?

Check Another of Your Medications Against Stereospermum

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

What to actually watch for

What Retifanlimab-Dlwr’s Own FDA Label Lists

This is not an interaction — none of it involves Stereospermum. These are the most notable effects listed in the ADVERSE REACTIONS section of Retifanlimab-Dlwr’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 10 of them are worth acting on rather than waiting out — marked below.

  • A change in thyroid levels Worth acting on
  • Blood clots Worth acting on
  • Pancreatitis Worth acting on
  • Yellowing of the skin or eyes Worth acting on
  • An irregular heartbeat Worth acting on
  • A severe skin reaction Worth acting on
  • Chest pain Worth acting on
  • A low platelet count Worth acting on
  • Kidney problems Worth acting on
  • Anemia Worth acting on

Showing the 10 most notable of 39 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Retifanlimab-Dlwr. Read the label on DailyMed › Stereospermum’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Stereospermum side to compare — that is a limit of the record, not a statement that Stereospermum has no side effects.

One more smart check

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

We hold 34 real supplement products containing Stereospermum, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Stereospermum. Even though Stereospermum itself has no known interaction with Retifanlimab-Dlwr, 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 Stereospermum and Retifanlimab-Dlwr 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 Stereospermum
Top half

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

29 days ago today
Medication Retifanlimab-Dlwr
Top 25%

#402 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 Stereospermum reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Stereospermum and Retifanlimab-Dlwr records this page draws on were last updated July 3, 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 Stereospermum

What is Stereospermum?

  • Fever
  • Inflammation and pain
  • Digestive complaints
  • Respiratory issues
  • General tonic in Ayurveda

Stereospermum is a tree used in traditional Ayurvedic medicine, most notably as one of the herbs in the classic 'Dashamula' (ten-root) formula. There is very little high-quality human research to confirm its benefits, so its uses remain largely traditional. If you are considering it, talk with a pharmacist or doctor first, especially if you are pregnant, breastfeeding, or taking other medicines.

Stereospermum suaveolens · Bignoniaceae · Root bark, stem bark, leaves, and flowers · Powder (churna), decoction, capsules, and as part of traditional Ayurvedic herbal blends

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

Stereospermum: dosing

There is no well-established standardized dose for Stereospermum. Traditional preparations vary, and it is often used as part of multi-herb formulas rather than alone.If you choose to use a product that contains it, follow the directions on the product label and do not exceed the recommended amount.

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

Read the full Stereospermum monograph & all interactions
Medication

About Retifanlimab-dlwr Injection

What Is Retifanlimab-dlwr Injection Used For?

Brand name: Zynyz

Zynyz (retifanlimab-dlwr) is approved to treat two types of cancer in adults. For squamous cell carcinoma of the anal canal (SCAC), Zynyz is used in two ways: combined with chemotherapy (carboplatin and paclitaxel) as a first-line treatment for disease that cannot be surgically removed or has spread, and on its own for patients whose SCAC has progressed on or who cannot tolerate platinum-based chemotherapy.

Zynyz is also approved for metastatic or recurrent locally advanced Merkel cell carcinoma (MCC), a rare and aggressive form of skin cancer.

See full Retifanlimab-dlwr Injection drug information
Keep checking

Other Drugs & Stereospermum

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

0Major
86Moderate
0Minor
2,743No known interaction
86 Moderate 2,743 No interaction
Moderate

86 interactions

Showing 60 of 86 moderate interactions — see all 86 on the Stereospermum page.

No interaction 2,743 drugs checked — show the list

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

Showing the 60 most looked-up of 2,743 medications checked with no known interaction — see the full Stereospermum list.

See the full Stereospermum interactions page
See every supplement checked against Retifanlimab-Dlwr, ranked by severity
Evidence & sources

Stereospermum References

The 2 references that drive our Stereospermum 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. Balasubramanian T, Lal MS, Sarkar M, Chatterjee TK. Antihyperglycemic and antioxidant activities of medicinal plant Stereospermum suaveolens in streptozotocin-induced diabetic rats. J Diet Suppl 2009;6(3):227-51.
  2. Balsubramanian T, Senthilkumar GP, Karthikeyan M, Chatterjee TK. Protective effect of ethyl acetate fraction of Stereospermum suaveolens against hepatic oxidative stress in STZ diabetic rats. J Tradit Complement Med 2013;3(3):175-81. 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 Stereospermum and Retifanlimab-Dlwr Together: Common Questions

Is it safe to take Stereospermum with Retifanlimab-Dlwr?
We do not list a known interaction between Stereospermum and Retifanlimab-Dlwr. 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.
Does Stereospermum interact with any other medications?
Yes. Stereospermum has 86 documented drug interactions in our database — Retifanlimab-Dlwr is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

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

Where next

Keep Exploring

Stereospermum monograph Uses, safety profile, and every drug interaction in one place Retifanlimab-dlwr Injection drug information The full plain-English guide to this medication Retifanlimab-Dlwr supplement interactions Every supplement checked against Retifanlimab-Dlwr, 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 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Retifanlimab-Dlwr and Stereospermum?

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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.