Drug & supplement interaction

Feldenkrais Method + Idelalisib

Idelalisib brand name: Zydelig.

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

We found no known interaction between Feldenkrais Method and Idelalisib 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

Feldenkrais Method and Idelalisib

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 Idelalisib and Feldenkrais Method in our sources. This does not guarantee that the combination is completely free of risk — research on Feldenkrais Method alongside specific medications may be limited.

Worth understanding: our licensed dataset holds no drug-interaction record for Feldenkrais Method at all — not against Idelalisib, 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.

Feldenkrais Method is a practice rather than something you take. Ask your care team whether the type and intensity you plan to practice are appropriate for your health and treatment. 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.

Feldenkrais Method safety at a glance

Feldenkrais Method overall Generally safe Gentle, low-impact movement that is generally well tolerated by most people.
Pregnancy Use caution Often used during pregnancy for comfort, but check first with your doctor or a qualified practitioner.
Breastfeeding Generally safe No known concern, since it involves gentle movement rather than any ingested substance.

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

Still wondering about combining Idelalisib and Feldenkrais Method? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Idelalisib’s Own FDA Label Lists

This is not an interaction — none of it involves Feldenkrais Method. These are the most notable effects listed in the ADVERSE REACTIONS section of Idelalisib’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 practice Feldenkrais Method and take the medicine. 8 of them are worth acting on rather than waiting out — marked below.

  • Dehydration Worth acting on mentioned in 3.5% of FDA reports for Idelalisib
  • A severe skin reaction Worth acting on
  • A low platelet count Worth acting on
  • Anemia Worth acting on
  • A low white blood cell count Worth acting on
  • A higher chance of infection Worth acting on mentioned in 6.2% of FDA reports for Idelalisib
  • Liver problems Worth acting on
  • An allergic reaction Worth acting on
  • Heartburn
  • Chills

Showing the 10 most notable of 22 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 Idelalisib. Read the label on DailyMed › Where a percentage is shown, it is the share of 7,040 voluntary FDA FAERS reports for Idelalisib that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Feldenkrais Method’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Feldenkrais Method side to compare — that is a limit of the record, not a statement that Feldenkrais Method has no side effects.

Everything else you take

See Every Supplement That Interacts With Idelalisib

This page covers Feldenkrais Method only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Idelalisib 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 Idelalisib page

“Idelalisib (Zydelig) treats certain blood cancers, work that leaves little room for error, so start with the three major-rated entries on this page. Grapefruit raises idelalisib levels and the risk of side effects with them, St.”

Reviewed by 2 · Jul 18, 2026

Open the Idelalisib interaction page

How much people look this up

Where Feldenkrais Method and Idelalisib 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 Feldenkrais Method
Steady interest

#1,255 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Idelalisib
Steady interest

#2,550 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 Feldenkrais Method reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Feldenkrais Method and Idelalisib records this page draws on were last updated June 22, 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 .
Mind-body practice

About Feldenkrais Method

What is Feldenkrais Method?

  • Chronic neck and back pain
  • Balance and mobility problems
  • Posture improvement
  • Stress and body awareness
  • Recovery and rehabilitation

The Feldenkrais Method is a gentle movement-education practice, not an herb or supplement. It is generally considered low-risk and may help some people with pain, balance, and body awareness, but the quality of research is limited and results vary. Talk with your doctor or physical therapist before using it as a substitute for proven treatment.

Not applicable (this is a movement education method, not a plant or supplement) · Group classes (Awareness Through Movement) and one-on-one sessions (Functional Integration)

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

Feldenkrais Method: dosing

There is no pill, dose, or standardized amount for the Feldenkrais Method because it is a movement practice, not a supplement. How often you practice is usually decided between you and your instructor.Many people attend weekly group classes or schedule individual sessions, and some practice short movement lessons at home.

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

Read the full Feldenkrais Method monograph & all interactions
Medication

About Idelalisib

What Is Idelalisib Used For?

Brand name: Zydelig

Zydelig (idelalisib) is approved to treat relapsed chronic lymphocytic leukemia (CLL) — a cancer of the blood and bone marrow — when used together with rituximab. It is specifically for patients who have already received treatment and for whom rituximab alone would be appropriate due to other health conditions.

Zydelig is not approved or recommended as a first-line (initial) treatment for CLL or any other cancer, including small lymphocytic lymphoma (SLL) or follicular lymphoma (FL). It is also not approved in combination with bendamustine and rituximab, or with rituximab alone, for FL, SLL, or other slow-growing non-Hodgkin lymphomas.

Most-Reported Side Effects for Idelalisib

From FAERS, the FDA’s public side-effect reporting system (7,040 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Disease progression 1,225 reports
Diarrhea 771 reports
Pneumonia 437 reports
Fever 375 reports
Fatigue 301 reports
See full Idelalisib drug information
Keep checking

Other Drugs & Feldenkrais Method

Browse every other medication we’ve checked against Feldenkrais Method — 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 Feldenkrais Method 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 Feldenkrais Method list.

See the full Feldenkrais Method interactions page
See every supplement checked against Idelalisib, ranked by severity
Evidence & sources

Feldenkrais Method References

The 11 references that drive our Feldenkrais Method 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. Kendall, S. A., Ekselius, L., and Gerdle, B. Feldenkrais intervention in fibromyalgia patients: a pilot study. J Musculoskel Pain 2001;9(4):25-35. DOI
  2. Smith, A. L., Kolt, G. S., and McConville, J. C. The effect of the Feldenkrais Method on pain and anxiety in people experiencing chronic low back pain. NZ J Physiother 2001;29(1):6-14.
  3. Netz, Y. and Lidor, R. Mood alterations in mindful versus aerobic exercise modes. J Psychol. 2003;137(5):405-419. PubMed
  4. Johnson, S. K., Frederick, J., Kaufman, M., and Mountjoy, B. A controlled investigation of bodywork in multiple sclerosis. J Altern Complement Med 1999;5(3):237-243. PubMed
  5. Lundqvist LO, Zetterlund C, Richter HO. Effects of Feldenkrais method on chronic neck/scapular pain in people with visual impairment: a randomized controlled trial with one-year follow-up. Arch Phys Med Rehabil. 2014;95(9):1656-61. PubMed
  6. Paolucci T, Zangrando F, Iosa M, et al. Improved interoceptive awareness in chronic low back pain: a comparison of Back school versus Feldenkrais method. Disabil Rehabil. 2017;39(10):994-1001. PubMed
  7. Teixeira-Machado L, Araújo FM, Cunha FA, Menezes M, Menezes T, Melo DeSantana J. Feldenkrais method-based exercise improves quality of life in individuals with Parkinson's disease: a controlled, randomized clinical trial. Altern Ther Health Med. 2015;21(1
  8. Torres-Unda J, Polo V, Dunabeitia I, et al. The Feldenkrais Method improves functioning and body balance in people with intellectual disability in supported employment: A randomized clinical trial. Res Dev Disabil. 2017;70:104-112. PubMed
  9. Ullmann G, Williams HG, Hussey J, Durstine JL, McClenaghan BA. Effects of Feldenkrais exercises on balance, mobility, balance confidence, and gait performance in community-dwelling adults age 65 and older. J Altern Complement Med. 2010;16(1):97-105. PubMed
  10. Vrantsidis F, Hill KD, Moore K, Webb R, Hunt S, Dowson L. Getting Grounded Gracefully: effectiveness and acceptability of Feldenkrais in improving balance. J Aging Phys Act. 2009;17(1):57-76. PubMed
  11. Ahmadi H, Adib H, Selk-Ghaffari M, et al. Comparison of the effects of the Feldenkrais method versus core stability exercise in the management of chronic low back pain: a randomised control trial. Clin Rehabil 2020;34(12):1449-1457. 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

Practicing Feldenkrais Method While Taking Idelalisib: Common Questions

Is it safe to practice Feldenkrais Method while taking Idelalisib?
We do not list a known interaction between Feldenkrais Method and Idelalisib. 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 Idelalisib interact with any supplements?
Yes. Idelalisib has documented interactions with 143 supplements in our database — Feldenkrais Method is not one of them. The Idelalisib 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

Feldenkrais Method monograph Uses, safety profile, and every drug interaction in one place Idelalisib drug information The full plain-English guide to this medication Idelalisib supplement interactions Every supplement checked against Idelalisib, 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 11 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Idelalisib and Feldenkrais Method?

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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.