Drug & supplement interaction

Dendrobium + Belzutifan

Belzutifan brand name: Welireg.

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 Dendrobium and Belzutifan 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

Dendrobium and Belzutifan

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 Belzutifan and Dendrobium 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.

Dendrobium safety at a glance

Dendrobium overall Use caution Generally used in traditional medicine, but modern safety data in people is limited.
Pregnancy Avoid Not enough safety information, so it is best avoided during pregnancy.
Breastfeeding Avoid No reliable safety data while breastfeeding, so avoid use.

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

Still wondering about combining Belzutifan and Dendrobium? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Belzutifan

Interactions in our licensed database are recorded against drug classes, not just single drug names. Belzutifan is filed under 3 classifications — cytochrome p450 2c19 (cyp2c19) substrates, glucuronidated drugs, oral drugs. Dendrobium has documented interactions with 3 drug classes — the most serious being anticonvulsants (moderate), seizure threshold lowering drugs (moderate) and antihypertensive drugs (minor) — and none of Belzutifan’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Dendrobium Does Interact With Other Medications

Dendrobium has 461 moderate, 148 minor known drug interactions in our database — Belzutifan isn’t one of them. If you take anything else, check it against the full list below.

Moderate 461 Minor 148 No known interaction 2,221 (incl. Belzutifan)
Taking anything else?

Check Another of Your Medications Against Dendrobium

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

What to actually watch for

What Dendrobium Itself Has Been Linked To

This is not an interaction — nothing below involves Belzutifan. It is the side-effect record for Dendrobium on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Dendrobium, this list is the first place to look.

  • Anxiety or restlessness / Trouble sleeping / Stomach upset Additional detail

    “Orally, a thorough evaluation of safety outcomes has not been conducted. The only reports of adverse effects, including jitteriness, upset stomach, and insomnia, are related to the use of a combination product that was found to contain amphetamine-like ingredients. It is unclear whether any of these effects can be attributed to dendrobium.”

    Dendrobium · Natural Medicines adverse-effect record, reported in insomnia.

    2 sources cited
    1. 90320. Kedia AW, Hofheins JE, Habowski SM, et al. Effects of a pre-workout supplement on lean mass, muscular performance, subjective workout experience and markers of safety. Int J Med Sci 2014;11(2):116-26.
    2. 100517. Warning Letter: Driven Sports, Inc 04/04/14. FDA Inspections, Compliance, Enforcement, and Criminal Investigations, April 4, 2014. https://www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/warning-letters/driven-sports-inc-0404201

Everything above comes from the Natural Medicines adverse-effect record for Dendrobium — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Belzutifan’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Belzutifan column appears here.

Everything else you take

See Every Supplement That Interacts With Belzutifan

This page covers Dendrobium only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Belzutifan page lists 60 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Adrafinil (moderate), Artichoke (moderate), Bacopa (moderate) and Baikal Skullcap (moderate).

By severity: 1 major · 45 moderate · 14 minor.

From our pharmacist’s overview on the Belzutifan page

“A drug like belzutifan (Welireg), taken long term to keep kidney and other tumors in check, only works if a steady amount reaches the blood, so I would be genuinely careful before adding supplements here. Most of the interactions on file shift how the liver clears the drug, through the CYP2C19 enzyme or the glucuronidation pathway, nud…”

Reviewed by 2 · Jul 18, 2026

Open the Belzutifan interaction page

One more smart check

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

We hold 117 real supplement products containing Dendrobium, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Dendrobium. Even though Dendrobium itself has no known interaction with Belzutifan, 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 Dendrobium and Belzutifan 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 Dendrobium
Top half

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

29 days ago today
Medication Belzutifan
Steady interest

#2,073 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 Dendrobium reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Dendrobium and Belzutifan 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 Dendrobium

What is Dendrobium?

  • Dry mouth and thirst
  • Supporting digestion
  • General tonic/vitality
  • Eye and skin health
  • Recovery after illness

Dendrobium is a group of orchids long used in traditional Chinese medicine, often to moisten the body and as a general tonic. Human evidence for its modern health claims is very limited, so it should be viewed as a traditional remedy rather than a proven treatment. Talk to your pharmacist or doctor before using it, and avoid it during pregnancy and breastfeeding because safety isn't known.

Dendrobium nobile · Orchidaceae · Stems (and sometimes whole plant) · Dried stems, tea, decoction, powder, capsules, tinctures

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

Dendrobium: dosing

There is no well-established standard dose of Dendrobium. Traditional preparations are usually made as teas or decoctions from the dried stems, while modern products come in capsules, powders, and liquid extracts with very different strengths.Because a proven safe and effective dose has not been set, the best approach is to follow the directions on the product label and not exceed them.

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

Read the full Dendrobium monograph & all interactions
Medication

About Belzutifan

What Is Belzutifan Used For?

Brand name: Welireg

Welireg treats several serious conditions. In adults with von Hippel-Lindau (VHL) disease, it targets associated kidney cancer (renal cell carcinoma), brain or spinal tumors (CNS hemangioblastomas), and pancreatic neuroendocrine tumors that don't need immediate surgery. It is also used in adults with clear cell renal cell carcinoma (ccRCC) — either after surgery to lower the risk of the cancer coming back (used with pembrolizumab or pembrolizumab and berahyaluronidase alfa-pmph), or as a single agent for advanced ccRCC that has already been treated with two other types of cancer drugs.

Welireg also treats pheochromocytoma or paraganglioma (PPGL) — rare tumors of the adrenal gland or nearby nerve tissue — in adults and in children 12 years and older when the tumor cannot be removed by surgery or has spread.

See full Belzutifan drug information
Keep checking

Other Drugs & Dendrobium

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

0Major
461Moderate
148Minor
2,220No known interaction
461 Moderate 148 Minor 2,220 No interaction
Moderate

461 interactions

Showing 60 of 461 moderate interactions — see all 461 on the Dendrobium page.

Minor

148 interactions

Showing 60 of 148 minor interactions — see all 148 on the Dendrobium page.

No interaction 2,220 drugs checked — show the list

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

Showing the 60 most looked-up of 2,220 medications checked with no known interaction — see the full Dendrobium list.

See the full Dendrobium interactions page
See every supplement checked against Belzutifan, ranked by severity
Evidence & sources

Dendrobium References

The 3 references that drive our Dendrobium 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. Dr. Duke's Phytochemical and Ethnobotanical Databases. Available at: http://www.ars-grin.gov/duke/.
  2. Kedia AW, Hofheins JE, Habowski SM, et al. Effects of a pre-workout supplement on lean mass, muscular performance, subjective workout experience and markers of safety. Int J Med Sci 2014;11(2):116-26.
  3. Warning Letter: Driven Sports, Inc 04/04/14. FDA Inspections, Compliance, Enforcement, and Criminal Investigations, April 4, 2014. https://www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/warning-letters/driven-sports-inc-0404201

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 Dendrobium and Belzutifan Together: Common Questions

Is it safe to take Dendrobium with Belzutifan?
We do not list a known interaction between Dendrobium and Belzutifan. 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.
How was the Dendrobium and Belzutifan combination checked?
Interactions in our licensed database are recorded against drug classes. Belzutifan is filed under 3 classifications, and Dendrobium has documented interactions with 3 drug classes — none of Belzutifan's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Dendrobium interact with any other medications?
Yes. Dendrobium has 609 documented drug interactions in our database — Belzutifan is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Belzutifan interact with any supplements?
Yes. Belzutifan has documented interactions with 60 supplements in our database — Dendrobium is not one of them. The Belzutifan 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

Dendrobium monograph Uses, safety profile, and every drug interaction in one place Belzutifan drug information The full plain-English guide to this medication Belzutifan supplement interactions Every supplement checked against Belzutifan, 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 3 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Belzutifan and Dendrobium?

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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.