Drug & supplement interaction

Reiki Therapy + Hydroxyurea

Hydroxyurea brand names: Droxia, Hydrea, Siklos, Xromi.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Reiki Therapy and Hydroxyurea 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

Reiki Therapy and Hydroxyurea

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

Worth understanding: our licensed dataset holds no drug-interaction record for Reiki Therapy at all — not against Hydroxyurea, 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.

Reiki Therapy is a treatment rather than something you take. Tell whoever provides it which medicines you use, and ask your prescriber whether it is 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.

Reiki Therapy safety at a glance

Reiki Therapy overall Generally safe Reiki is non-invasive and widely considered safe when used alongside conventional care.
Pregnancy Use caution Generally considered low-risk, but discuss with your doctor and choose a qualified practitioner.
Breastfeeding Use caution No known harm, but evidence is lacking, so check with your healthcare provider.

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

Still wondering about combining Hydroxyurea and Reiki Therapy? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Hydroxyurea’s Own FDA Label Lists

This is not an interaction — none of it involves Reiki Therapy. These are the most notable effects listed in the ADVERSE REACTIONS section of Hydroxyurea’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 have Reiki Therapy and take the medicine. 6 of them are worth acting on rather than waiting out — marked below.

  • Low magnesium Worth acting on
  • Anemia Worth acting on mentioned in 12.0% of FDA reports for Hydroxyurea
  • A low platelet count Worth acting on
  • Shortness of breath Worth acting on
  • A low white blood cell count Worth acting on
  • A higher chance of infection Worth acting on
  • Changes to your period
  • Dry skin
  • Weight gain
  • Pain in an arm or leg

Showing the 10 most notable of 25 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 Hydroxyurea. Read the label on DailyMed › Where a percentage is shown, it is the share of 21,027 voluntary FDA FAERS reports for Hydroxyurea that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Reiki Therapy’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Reiki Therapy side to compare — that is a limit of the record, not a statement that Reiki Therapy has no side effects.

From our Q&A

Questions About Reiki Therapy or Hydroxyurea

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Reiki Therapy or Hydroxyurea, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Hydroxyurea

This page covers Reiki Therapy only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Hydroxyurea page lists 18 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 10 minor.

From our pharmacist’s overview on the Hydroxyurea page

“People take hydroxyurea (Droxia, Hydrea, Siklos, Xromi) for serious reasons, most often sickle cell disease or certain blood cancers, and it only works if a steady dose reaches the bloodstream. That is exactly what nearly all 18 supplements listed here can undermine, so this page earns real vigilance rather than a skim.”

Reviewed by 2 · Jul 18, 2026

Open the Hydroxyurea interaction page

How much people look this up

Where Reiki Therapy and Hydroxyurea 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 Reiki Therapy
Steady interest

#1,380 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Hydroxyurea
Top 5%

#39 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. Reiki Therapy is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Reiki Therapy reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Reiki Therapy and Hydroxyurea 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 .
Treatment approach

About Reiki Therapy

What is Reiki Therapy?

  • Stress and relaxation
  • Anxiety
  • Pain relief
  • Fatigue and general well-being
  • Support during cancer care
  • Improved sleep

Reiki is a complementary energy-healing practice in which a trained practitioner places their hands lightly on or near your body to promote relaxation and a sense of well-being. It is generally considered safe and gentle, but high-quality evidence that it treats any specific medical condition is limited. It is best used alongside—not instead of—standard medical care.

Not applicable (energy healing practice) · Hands-on or hands-near-body sessions, distance Reiki

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

Reiki Therapy: dosing

There is no standardized "dose" for Reiki because it is a practice, not a product. Sessions commonly last about 30 to 90 minutes, and people may have a single session or a series of sessions depending on their goals and the practitioner's recommendation.If you are interested, look for a trained and reputable practitioner, and let them know about any medical conditions you have.

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

Read the full Reiki Therapy monograph & all interactions
Medication

About Hydroxyurea

What Is Hydroxyurea Used For?

Brand names: Droxia, Hydrea, Siklos, Xromi

Hydroxyurea is used for several serious conditions. Droxia, Siklos, and Xromi are each indicated to reduce the frequency of painful crises and reduce the need for blood transfusions in patients with sickle cell anemia who have recurrent moderate to severe painful crises. Siklos is approved for adults and children 2 years and older; Xromi is approved for children 6 months and older; Droxia is approved for adults.

Hydrea capsules and Hydroxyurea capsules are indicated for resistant chronic myeloid leukemia and for locally advanced squamous cell carcinomas of the head and neck (excluding the lip) when used together with chemoradiation.

Most-Reported Side Effects for Hydroxyurea

From FAERS, the FDA’s public side-effect reporting system (21,027 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 1,548 reports
Sickle cell anaemia with crisis 1,486 reports
Diarrhea 1,408 reports
Nausea 1,306 reports
Headache 1,068 reports
See full Hydroxyurea drug information
Keep checking

Other Drugs & Reiki Therapy

Browse every other medication we’ve checked against Reiki Therapy — 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 Reiki Therapy 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 Reiki Therapy list.

See the full Reiki Therapy interactions page
See every supplement checked against Hydroxyurea, ranked by severity
Evidence & sources

Reiki Therapy References

The 2 sources that drive our Reiki Therapy monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Reiki Therapy is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Reiki — NIH NCCIH Source
  2. Complementary, alternative, or integrative health: What's in a name? — NIH NCCIH Source

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

Having Reiki Therapy While Taking Hydroxyurea: Common Questions

Is it safe to have Reiki Therapy while taking Hydroxyurea?
We do not list a known interaction between Reiki Therapy and Hydroxyurea. 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 Hydroxyurea interact with any supplements?
Yes. Hydroxyurea has documented interactions with 18 supplements in our database — Reiki Therapy is not one of them. The Hydroxyurea 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

Reiki Therapy monograph Uses, safety profile, and every drug interaction in one place Hydroxyurea drug information The full plain-English guide to this medication Hydroxyurea supplement interactions Every supplement checked against Hydroxyurea, 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 Hydroxyurea and Reiki Therapy?

Our pharmacists answer your medication & supplement questions — free.

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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.