Drug & supplement interaction

Strophanthus + Triamcinolone Acetonide

Triamcinolone Acetonide brand names: Zilretta, Xipere.

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

Strophanthus has a moderate interaction with Triamcinolone Acetonide. Use of corticosteroids may cause electrolyte depletion and increase the risk of strophanthus toxicity.

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

Strophanthus and Triamcinolone Acetonide

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

Moderate

CORTICOSTEROIDS

Why this applies to Triamcinolone Acetonide

Triamcinolone Acetonide falls under CORTICOSTEROIDS — the group Strophanthus interacts with.

Use of corticosteroids may cause electrolyte depletion and increase the risk of strophanthus toxicity.
Severity Moderate Likelihood Possible Evidence D

Interaction 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.

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

Here's the connection worth knowing: Strophanthus contains cardiac glycosides that act a lot like digoxin, and they're very sensitive to your body's potassium levels. Triamcinolone acetonide is a corticosteroid (you'll see it as Zilretta for joints or Xipere for the eye), and steroids like it can lower potassium over time. When potassium drops, these heart compounds hit harder, which raises the chance of Strophanthus toxicity, things like nausea, vision changes, or irregular heartbeats.

Keep in mind this is a theoretical concern based on how the two work, not strong real-world data, and a single joint or eye injection is far less likely to shift your potassium than long-term oral steroids. Still, Strophanthus is potent and not casual, so please loop in your doctor or pharmacist before combining them.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

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

Strophanthus Also Interacts With Other Medications

Strophanthus has 3 major, 119 moderate known drug interactions in our database — the Triamcinolone Acetonide one above is one of them. If you take anything else, check it against the full list below.

Major 3 Moderate 119 No known interaction 2,708 (incl. Triamcinolone Acetonide)
Taking anything else?

Check Another of Your Medications Against Strophanthus

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

Everything else you take

See Every Supplement That Interacts With Triamcinolone Acetonide

This page covers Strophanthus only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Triamcinolone Acetonide page lists 104 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Lily-of-the-valley (major), St. John's Wort (major), Active Hexose Correlated Compound (ahcc) (moderate), Alder Buckthorn (moderate) and Alfalfa (moderate).

By severity: 2 major · 93 moderate · 9 minor.

From our pharmacist’s overview on the Triamcinolone Acetonide page

“Triamcinolone acetonide (Zilretta, Xipere), an injected corticosteroid used for knee osteoarthritis and certain eye conditions, comes with a supplement list I would treat with genuine care rather than a shrug. Two of its 104 flagged ingredients rate major.”

Reviewed by 2 · Jul 18, 2026

Open the Triamcinolone Acetonide interaction page

How much people look this up

Where Strophanthus and Triamcinolone Acetonide 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 Strophanthus
Steady interest

#1,061 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Triamcinolone Acetonide
Top half

#1,053 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 Strophanthus

What is Strophanthus?

  • Heart failure
  • Angina (chest pain)
  • Irregular heartbeat
  • Circulation support
  • Traditional African arrow poison (historical)

Strophanthus is a plant that contains powerful heart-affecting compounds called cardiac glycosides (the best known is ouabain/g-strophanthin). Because these substances can strongly affect heart rhythm and are toxic in the wrong amount, Strophanthus is not a casual supplement and should never be used without close medical supervision. Reliable modern evidence for its supplement use is limited.

Read the full Strophanthus monograph & all interactions
Keep checking

Other Drugs & Strophanthus

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

3Major
119Moderate
0Minor
2,707No known interaction
3 Major 119 Moderate 2,707 No interaction
Major

3 interactions

Moderate

119 interactions

Showing 60 of 119 moderate interactions — see all 119 on the Strophanthus page.

No interaction 2,707 drugs checked — show the list

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

Showing the 60 most looked-up of 2,707 medications checked with no known interaction — see the full Strophanthus list.

See the full Strophanthus interactions page
See every supplement checked against Triamcinolone Acetonide, 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
Strophanthus monograph › Uses, safety, and every drug interaction in one place Triamcinolone Acetonide supplement interactions › Every supplement checked against Triamcinolone Acetonide, 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 Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Strophanthus and Triamcinolone Acetonide Together: Common Questions

Can you take Strophanthus with Triamcinolone Acetonide?
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 Strophanthus and Triamcinolone Acetonide 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 Triamcinolone Acetonide and Strophanthus?

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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.