Drug & supplement interaction

Pulsed Electromagnetic Field (pemf) Therapy + Diclofenac Sodium

Diclofenac Sodium brand names: Voltaren XR, Voltaren, Voltaren SR, Diclo, Difenac, and others.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 27, 2026
The bottom line No known interaction

We found no known interaction between Pulsed Electromagnetic Field (pemf) Therapy and Diclofenac Sodium 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

Pulsed Electromagnetic Field (pemf) Therapy and Diclofenac Sodium

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 Diclofenac Sodium and Pulsed Electromagnetic Field (pemf) Therapy in our sources. This does not guarantee that the combination is completely free of risk — research on Pulsed Electromagnetic Field (pemf) Therapy alongside specific medications may be limited.

Worth understanding: our licensed dataset holds no drug-interaction record for Pulsed Electromagnetic Field (pemf) Therapy at all — not against Diclofenac Sodium, 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.

Pulsed Electromagnetic Field (pemf) 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.

Pulsed Electromagnetic Field (pemf) Therapy safety at a glance

Pulsed Electromagn... overall Use caution Generally well tolerated for most people, but not appropriate for everyone, especially those with implanted electronic devices.
Pregnancy Avoid Safety during pregnancy has not been established, so it is best avoided unless directed by a doctor.
Breastfeeding Not established There is little research on PEMF use while breastfeeding, so caution is advised.

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

Still wondering about combining Diclofenac Sodium and Pulsed Electromagnetic Field (pemf) Therapy? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Pulsed Electromagnetic Field (pemf) Therapy and Diclofenac Sodium 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 having Pulsed Electromagnetic Field (pemf) Therapy while taking the medicine can make those effects more likely to turn up, and harder to pin on one or the other if they do. One of them is worth acting on rather than waiting out — marked below.

  • Raised blood pressure Worth acting on Additional detail

    Pulsed Electromagnetic Field (pemf) Therapy

    “In one study, two patients given PEMF treatment had orthostatic hypertension which resolved upon treatment discontinuation.”

    Pulsed Electromagnetic Field (pemf) Therapy · Natural Medicines adverse-effect record, reported in hypertension.

    1 source cited
    1. 109144. Sutbeyaz ST, Sezer N, Koseoglu F, Kibar S. Low-frequency pulsed electromagnetic field therapy in fibromyalgia: a randomized, double-blind, sham-controlled clinical study. Clin J Pain. 2009;25(8):722-8. PubMed

    Diclofenac Sodium

    Listed in the ADVERSE REACTIONS section of the FDA label for Diclofenac Sodium. Read the label on DailyMed ›

Effects for Diclofenac Sodium come from the ADVERSE REACTIONS section of its FDA label; effects for Pulsed Electromagnetic Field (pemf) Therapy come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 155,962 voluntary FDA FAERS reports for Diclofenac Sodium 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.

Overlapping uses

What Diclofenac Sodium Is Prescribed For, and What Pulsed Electromagnetic Field (pemf) Therapy Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Diclofenac Sodium is a prescription medicine with approved uses on its FDA label. Pulsed Electromagnetic Field (pemf) Therapy is a treatment: what follows is what researchers have looked at it for, and how strong that evidence is.

Diclofenac Sodium is prescribed for: Diclofenac sodium topical gel is used to treat actinic keratoses (AK) — rough, scaly skin patches that form after years of sun exposure. These patches are considered precancerous, meaning they can develop into skin cancer if left untreated. This is a topical gel, meaning it is applied directly to the skin over the affected area rather than taken by mouth. It belongs to the NSAID (nonsteroidal anti-inflammatory drug) family.

Pulsed Electromagnetic Field (pemf) Therapy has been studied for:

  • Osteoarthritis Natural Medicines rates the evidence for Pulsed Electromagnetic Field (pemf) Therapy: Possibly Effective Read what the research shows

    Pulsed Electromagnetic Field (pemf) Therapy for osteoarthritis

    Most research shows that PEMF therapy is beneficial for osteoarthritis, especially knee osteoarthritis.

  • Cancer studied, not established Pulsed Electromagnetic Field (pemf) Therapy has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Pulsed Electromagnetic Field (pemf) Therapy for cancer

    Although there is interest in using PEMF therapy for cancer, there is insufficient reliable information about the clinical effects of PEMF therapy for this condition.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Diclofenac Sodium on your own; if you are taking Pulsed Electromagnetic Field (pemf) Therapy for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Pulsed Electromagnetic Field (pemf) Therapy or Diclofenac Sodium

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Pulsed Electromagnetic Field (pemf) Therapy or Diclofenac Sodium, 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 Diclofenac Sodium

This page covers Pulsed Electromagnetic Field (pemf) Therapy only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Diclofenac Sodium page lists 308 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Asarabacca (major), Beer (major), Danshen (major) and Piracetam (major).

By severity: 7 major · 266 moderate · 35 minor.

From our pharmacist’s overview on the Diclofenac Sodium page

“Diclofenac (Voltaren), a daily mainstay for arthritis and joint pain, comes with a supplement list that calls for real vigilance. Of the 308 ingredients on file, 7 rate major, and roughly two hundred entries share a single theme: anything with blood-thinning activity adds to diclofenac's own bleeding risk, especially in the stomach.”

Reviewed by 2 · Jul 18, 2026

Open the Diclofenac Sodium interaction page

How much people look this up

Where Pulsed Electromagnetic Field (pemf) Therapy and Diclofenac Sodium 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 Pulsed Electromagnetic Field (pemf) Therapy
Steady interest

#1,112 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Diclofenac Sodium
Top 10%

#228 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 Pulsed Electromagnetic Field (pemf) Therapy reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Pulsed Electromagnetic Field (pemf) Therapy and Diclofenac Sodium 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 .
Treatment approach

About Pulsed Electromagnetic Field (pemf) Therapy

What is Pulsed Electromagnetic Field (pemf) Therapy?

  • Bone healing (fractures and non-unions)
  • Osteoarthritis and joint pain
  • General pain and inflammation
  • Muscle recovery and stiffness
  • Wound healing
  • Sleep and relaxation

PEMF therapy uses pulsing electromagnetic fields from a device to try to ease pain and support tissue or bone healing. The strongest evidence is for certain bone-healing uses, where it is FDA-cleared; for most other claims the evidence is limited or mixed. It is generally well tolerated, but people with implanted electronic devices and those who are pregnant should avoid it unless a doctor approves.

Not applicable (a device-based therapy, not an herb or supplement) · Mats, pads, rings, handheld wands, and full-body devices that deliver electromagnetic pulses

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

Pulsed Electromagnetic Field (pemf) Therapy: dosing

There is no single standard dose for PEMF therapy. Settings such as frequency, intensity, session length, and how often to use the device vary widely between products and conditions.For medical-grade devices used for bone healing, the doctor or device maker provides a specific treatment schedule.

From our Pulsed Electromagnetic Field (pemf) Therapy monograph — the full record covers uses, side effects and every documented interaction.

Read the full Pulsed Electromagnetic Field (pemf) Therapy monograph & all interactions
Medication

About Diclofenac

What Is Diclofenac Used For?

Brand names: Voltaren XR, Voltaren, Voltaren SR, Diclo, Difenac, Diclo SR, Voltarol, Acoflam, Defenac, Dicloflex, Diclovol, Diclozip, Fenactol, Flamrase, Volraman, Diclomax SR, Diclomax Retard, Motifene 75 mg, Voltarol 75 mg SR, Acoflam 75 SR, Defenac SR, Dexomon 75 SR, Dicloflex 75 SR, Diclovol SR, Fenactol 75 mg SR, Flamatak 75 MR, Flamrase SR, Flexotard MR 75, Rheumatac Retard 75, Rhumalgan CR, Slofenac SR, Volsaid Retard 75, Voltarol Retard, Acoflam Retard, Defenac Retard, Dexomon Retard 100, Dicloflex Retard, Diclovol Retard, Fenactol Retard 100 mg, Flamatak 100 MR, Volsaid Retard 100, Voltarol Ophtha Multidose, Voltarol Ophtha, Pennsaid, Voltaren Emulgel, Dyloject

Diclofenac sodium topical gel is used to treat actinic keratoses (AK) — rough, scaly skin patches that form after years of sun exposure. These patches are considered precancerous, meaning they can develop into skin cancer if left untreated.

This is a topical gel, meaning it is applied directly to the skin over the affected area rather than taken by mouth. It belongs to the NSAID (nonsteroidal anti-inflammatory drug) family.

Most-Reported Side Effects for Diclofenac Sodium

From FAERS, the FDA’s public side-effect reporting system (155,962 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 13,844 reports
Arthralgia 11,333 reports
Rash 10,855 reports
Rheumatoid arthritis 10,744 reports
Abdominal discomfort 9,636 reports
See full Diclofenac drug information
Keep checking

Other Drugs & Pulsed Electromagnetic Field (pemf) Therapy

Browse every other medication we’ve checked against Pulsed Electromagnetic Field (pemf) 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 Pulsed Electromagnetic Field (pemf) 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 Pulsed Electromagnetic Field (pemf) Therapy list.

See the full Pulsed Electromagnetic Field (pemf) Therapy interactions page
See every supplement checked against Diclofenac Sodium, ranked by severity
Evidence & sources

Pulsed Electromagnetic Field (pemf) Therapy References

The 1 references that drive our Pulsed Electromagnetic Field (pemf) Therapy 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. Sutbeyaz ST, Sezer N, Koseoglu F, Kibar S. Low-frequency pulsed electromagnetic field therapy in fibromyalgia: a randomized, double-blind, sham-controlled clinical study. Clin J Pain. 2009;25(8):722-8. 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

Having Pulsed Electromagnetic Field (pemf) Therapy While Taking Diclofenac Sodium: Common Questions

Is it safe to have Pulsed Electromagnetic Field (pemf) Therapy while taking Diclofenac Sodium?
We do not list a known interaction between Pulsed Electromagnetic Field (pemf) Therapy and Diclofenac Sodium. 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 Pulsed Electromagnetic Field (pemf) Therapy and Diclofenac Sodium 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.
Are Pulsed Electromagnetic Field (pemf) Therapy and Diclofenac Sodium used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Pulsed Electromagnetic Field (pemf) Therapy in each. That is a conversation for your prescriber, especially if Diclofenac Sodium is being adjusted to a target.
Does Diclofenac Sodium interact with any supplements?
Yes. Diclofenac Sodium has documented interactions with 308 supplements in our database — Pulsed Electromagnetic Field (pemf) Therapy is not one of them. The Diclofenac Sodium 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

Pulsed Electromagnetic Field (pemf) Therapy monograph Uses, safety profile, and every drug interaction in one place Diclofenac drug information The full plain-English guide to this medication Diclofenac Sodium supplement interactions Every supplement checked against Diclofenac Sodium, 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 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Diclofenac Sodium and Pulsed Electromagnetic Field (pemf) Therapy?

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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.