Drug & supplement interaction

Ipriflavone + Duvelisib

Duvelisib brand name: Copiktra.

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 Ipriflavone and Duvelisib 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

Ipriflavone and Duvelisib

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 Duvelisib and Ipriflavone 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.

Ipriflavone safety at a glance

Ipriflavone overall Use caution May lower white blood cell counts and has limited long-term safety data.
Pregnancy Avoid Not enough safety data and possible estrogen-like effects; avoid use.
Breastfeeding Avoid No reliable safety information during breastfeeding; best avoided.

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

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

Why No Interaction Is Listed for Duvelisib

Interactions in our licensed database are recorded against drug classes, not just single drug names. Duvelisib is filed under 3 classifications — cytochrome p450 3a4 (cyp3a4) inhibitors, cytochrome p450 3a4 (cyp3a4) substrates, oral drugs. Ipriflavone has documented interactions with 4 drug classes — the most serious being cytochrome p450 1a2 (cyp1a2) substrates (moderate), cytochrome p450 2c9 (cyp2c9) substrates (moderate) and immunosuppressants (moderate) — and none of Duvelisib’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

Ipriflavone Does Interact With Other Medications

Ipriflavone has 391 moderate known drug interactions in our database — Duvelisib isn’t one of them. If you take anything else, check it against the full list below.

Moderate 391 No known interaction 2,439 (incl. Duvelisib)
Taking anything else?

Check Another of Your Medications Against Ipriflavone

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

What to actually watch for

No Interaction Found — But Data Suggests Ipriflavone and Duvelisib 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.

  • Diarrhea reported in 14.0% of FDA reports for Duvelisib Additional detail

    Ipriflavone

    “Orally, ipriflavone is generally well-tolerated. However, some patients taking ipriflavone can experience epigastric pain, diarrhea, and dizziness. There is some concern that ipriflavone can cause lymphocytopenia when used for at least 6 months.”

    Ipriflavone · Natural Medicines adverse-effect record, reported in diarrhea.

    3 sources cited
    1. 432. Agnusdei D, Bufalino L. Efficacy of ipriflavone in established osteoporosis and long-term safety. Calcif Tissue Int 1997;61,Suppl 1:S23-7. PubMed
    2. 104208. Hu Q, Long C, Wu D, et al. The efficacy and safety of ipriflavone in postmenopausal women with osteopenia or osteoporosis: A systematic review and meta-analysis. Pharmacol Res. 2020;159:104860. PubMed
    3. 1196. Alexandersen P, Toussaint A, Christiansen C, et al. Ipriflavone in the treatment of postmenopausal osteoporosis: A randomized controlled trial. JAMA 2001;285:1482-8.

    “Orally, ipriflavone can cause epigastric pain and diarrhea in some people.”

    Ipriflavone · Natural Medicines adverse-effect record, reported in diarrhea.

    2 sources cited
    1. 432. Agnusdei D, Bufalino L. Efficacy of ipriflavone in established osteoporosis and long-term safety. Calcif Tissue Int 1997;61,Suppl 1:S23-7. PubMed
    2. 104208. Hu Q, Long C, Wu D, et al. The efficacy and safety of ipriflavone in postmenopausal women with osteopenia or osteoporosis: A systematic review and meta-analysis. Pharmacol Res. 2020;159:104860. PubMed

    Duvelisib

    Listed in the ADVERSE REACTIONS section of the FDA label for Duvelisib, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

Reported for Ipriflavone but not commonly for Duvelisib: dizziness.

Effects for Duvelisib come from the ADVERSE REACTIONS section of its FDA label; effects for Ipriflavone come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 765 voluntary FDA FAERS reports for Duvelisib 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 Duvelisib

This page covers Ipriflavone only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Duvelisib page lists 143 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Acacia Rigidula (moderate) and Adrafinil (moderate).

By severity: 3 major · 100 moderate · 40 minor.

From our pharmacist’s overview on the Duvelisib page

“Duvelisib (Copiktra) treats certain blood cancers, and its supplement list deserves genuine care because the body clears it through a single enzyme, CYP3A4. Most of the 143 ingredients either block or speed up that enzyme, which can push duvelisib levels high enough to worsen side effects or low enough to weaken its grip on the cancer.”

Reviewed by 2 · Jul 18, 2026

Open the Duvelisib interaction page

One more smart check

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

We hold 204 real supplement products containing Ipriflavone, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Ipriflavone. Even though Ipriflavone itself has no known interaction with Duvelisib, 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 Ipriflavone and Duvelisib 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 Ipriflavone
Top 25%

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

29 days ago today
Medication Duvelisib
Steady interest

#1,613 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 Ipriflavone reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Ipriflavone and Duvelisib 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 Ipriflavone

What is Ipriflavone?

Ipriflavone
  • Bone density and osteoporosis
  • Postmenopausal bone loss
  • Athletic performance
  • Tinnitus related to bone disorders

Ipriflavone is a synthetic isoflavone studied mainly for bone health and osteoporosis, but high-quality research has not shown that it reliably prevents fractures or builds strong bone. Because it can lower white blood cell counts in some people and its long-term safety is not well established, talk with your pharmacist or doctor before using it.

Synthetic compound (a semi-synthetic isoflavone derived from soy isoflavones) · Tablets, capsules

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

Ipriflavone: dosing

There is no officially established or universally agreed dietary supplement dose for ipriflavone. Doses used in research were studied for osteoporosis and are not a recommendation for general use.If you choose to use a product, follow the directions on the label and do not exceed them. People considering it for bone health should also discuss adequate calcium and vitamin D intake.

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

Read the full Ipriflavone monograph & all interactions
Medication

About Duvelisib

What Is Duvelisib Used For?

Brand name: Copiktra

Copiktra (duvelisib) is used in adults with relapsed or refractory chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) — meaning the cancer has returned or stopped responding to treatment — after at least two prior therapies.

Copiktra is also used for relapsed or refractory follicular lymphoma (FL) after at least two prior systemic therapies. The follicular lymphoma approval is based on overall response rate and is considered an accelerated approval; continued approval may depend on results from confirmatory trials. Copiktra is not intended for use as a first- or second-line treatment for any of these cancers.

Most-Reported Side Effects for Duvelisib

From FAERS, the FDA’s public side-effect reporting system (765 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Diarrhea 107 reports
Fatigue 78 reports
Prescribed underdose 65 reports
Nausea 49 reports
Pneumonia 41 reports
See full Duvelisib drug information
Keep checking

Other Drugs & Ipriflavone

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

0Major
391Moderate
0Minor
2,438No known interaction
391 Moderate 2,438 No interaction
Moderate

391 interactions

Showing 60 of 391 moderate interactions — see all 391 on the Ipriflavone page.

No interaction 2,438 drugs checked — show the list

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

Showing the 60 most looked-up of 2,438 medications checked with no known interaction — see the full Ipriflavone list.

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

Ipriflavone References

The 6 references that drive our Ipriflavone 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. Agnusdei D, Bufalino L. Efficacy of ipriflavone in established osteoporosis and long-term safety. Calcif Tissue Int 1997;61,Suppl 1:S23-7. PubMed
  2. Alexandersen P, Toussaint A, Christiansen C, et al. Ipriflavone in the treatment of postmenopausal osteoporosis: A randomized controlled trial. JAMA 2001;285:1482-8.
  3. Agnusdei D, Camporeale A, Gonnelli S, et al. Short-term treatment of Paget's disease of bone with ipriflavone. Bone Miner 1992;19 Suppl 1:S35-42. PubMed
  4. Monostory K, Vereczkey L, Levai F, et al. Ipriflavone as an inhibitor of human cytochrome P450 enzymes. Br J Pharmacol 1998;123:605-10. PubMed
  5. Takahashi J, Kawakatsu K, Wakayama T, Sawaoka H. Elevation of serum theophylline levels by ipriflavone in a patient with chronic obstructive pulmonary disease. Eur J Clin Pharmacol 1992;43:207-8. PubMed
  6. Hu Q, Long C, Wu D, et al. The efficacy and safety of ipriflavone in postmenopausal women with osteopenia or osteoporosis: A systematic review and meta-analysis. Pharmacol Res. 2020;159:104860. 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 Ipriflavone and Duvelisib Together: Common Questions

Is it safe to take Ipriflavone with Duvelisib?
We do not list a known interaction between Ipriflavone and Duvelisib. 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 Ipriflavone and Duvelisib 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.
How was the Ipriflavone and Duvelisib combination checked?
Interactions in our licensed database are recorded against drug classes. Duvelisib is filed under 3 classifications, and Ipriflavone has documented interactions with 4 drug classes — none of Duvelisib'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 Ipriflavone interact with any other medications?
Yes. Ipriflavone has 391 documented drug interactions in our database — Duvelisib 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 Duvelisib interact with any supplements?
Yes. Duvelisib has documented interactions with 143 supplements in our database — Ipriflavone is not one of them. The Duvelisib 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

Ipriflavone monograph Uses, safety profile, and every drug interaction in one place Duvelisib drug information The full plain-English guide to this medication Duvelisib supplement interactions Every supplement checked against Duvelisib, 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 6 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Duvelisib and Ipriflavone?

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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.