Drug & supplement interaction

Chromotherapy + Dextromethorphan HBr, Guaifenesin

Dextromethorphan HBr, Guaifenesin brand names: Vicks Formula 44E Cough & Chest Congestion Relief, Pediatric Vicks Formula 44e Cough & Chest Congesti.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Chromotherapy and Dextromethorphan HBr, Guaifenesin 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

Chromotherapy and Dextromethorphan HBr, Guaifenesin

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 Dextromethorphan HBr, Guaifenesin and Chromotherapy in our sources. This does not guarantee that the combination is completely free of risk — research on Chromotherapy alongside specific medications may be limited.

Worth understanding: our licensed dataset holds no drug-interaction record for Chromotherapy at all — not against Dextromethorphan HBr, Guaifenesin, 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.

Chromotherapy 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.

Chromotherapy safety at a glance

Chromotherapy overall Use caution Generally low-risk as a relaxation aid, but unproven and should not replace medical treatment.
Pregnancy Use caution No reliable safety data; gentle ambient color exposure is unlikely to harm, but check with your doctor.
Breastfeeding Use caution No reliable safety data; discuss with your healthcare provider before relying on it.

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

Still wondering about combining Dextromethorphan HBr, Guaifenesin and Chromotherapy? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
Everything else you take

See Every Supplement That Interacts With Dextromethorphan HBr, Guaifenesin

This page covers Chromotherapy only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Dextromethorphan HBr, Guaifenesin page lists 171 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), Lithium (major), St. John's Wort (major) and 1,3-dmaa (moderate).

By severity: 4 major · 125 moderate · 42 minor.

From our pharmacist’s overview on the Dextromethorphan HBr, Guaifenesin page

“A bad cough tends to hit when supplements are already on the counter, and anyone reaching for Vicks Formula 44E (dextromethorphan HBr and guaifenesin) should treat this list with real care, since 4 of its 171 entries carry a major rating. Two themes dominate.”

Reviewed by 2 · Jul 18, 2026

Open the Dextromethorphan HBr, Guaifenesin interaction page

How much people look this up

Where Chromotherapy and Dextromethorphan HBr, Guaifenesin 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 Chromotherapy
Top half

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

29 days ago today
Medication Dextromethorphan HBr, Guaifenesin
Top half

#1,394 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 Chromotherapy reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Chromotherapy and Dextromethorphan HBr, Guaifenesin 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 Chromotherapy

What is Chromotherapy?

  • Stress and relaxation
  • Mood and emotional balance
  • Sleep difficulties
  • Energy and general wellness
  • Pain or discomfort relief

Chromotherapy (color therapy) is an alternative practice that uses colored light or color exposure to try to improve health and mood. It is not a dietary supplement or herb, and there is very little high-quality scientific evidence that it treats any medical condition. It is generally low-risk as a relaxation tool, but it should not replace proven medical care.

Not applicable (chromotherapy is a light/color therapy, not a plant or supplement) · Colored light exposure, colored lamps or LED panels, colored glass or filters, sometimes paired with water, fabrics, or environment design

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

Chromotherapy: dosing

There is no standardized or proven "dose" for chromotherapy. Session length, color, and intensity vary widely between devices, practitioners, and traditions, and none has been scientifically established as effective.If you choose to try chromotherapy, follow the instructions that come with the device or the guidance of a qualified practitioner. Avoid staring directly into bright light sources, and stop if you feel any discomfort.

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

Read the full Chromotherapy monograph & all interactions
Medication

About Dextromethorphan HBr, Guaifenesin

Most-Reported Side Effects for Dextromethorphan HBr, Guaifenesin

From FAERS, the FDA’s public side-effect reporting system (1,675 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Dyspnea 140 reports
Pneumonia 123 reports
Nausea 120 reports
Cough 119 reports
Fatigue 118 reports
Keep checking

Other Drugs & Chromotherapy

Browse every other medication we’ve checked against Chromotherapy — 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
No interaction 2,829 drugs checked — show the list
Evidence & sources

Chromotherapy References

The 1 references that drive our Chromotherapy 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. Minguillon J, Lopez-Gordo MA, Renedo-Criado DA, Sanchez-Carrion MJ, Pelayo F. Blue lighting accelerates post-stress relaxation: Results of a preliminary study. PLoS One. 2017;12(10):e0186399. 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 Chromotherapy While Taking Dextromethorphan HBr, Guaifenesin: Common Questions

Is it safe to have Chromotherapy while taking Dextromethorphan HBr, Guaifenesin?
We do not list a known interaction between Chromotherapy and Dextromethorphan HBr, Guaifenesin. 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 Dextromethorphan HBr, Guaifenesin interact with any supplements?
Yes. Dextromethorphan HBr, Guaifenesin has documented interactions with 171 supplements in our database — Chromotherapy is not one of them. The Dextromethorphan HBr, Guaifenesin interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Still Have a Question About Dextromethorphan HBr, Guaifenesin and Chromotherapy?

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.