Drug & supplement interaction

Heart's Ease + Ethambutol

Ethambutol brand names: Myambutol, Etibi.

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 Heart's Ease and Ethambutol 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 label for Ethambutol states a food rule worth keeping to.

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Interaction report

Heart's Ease and Ethambutol

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 Ethambutol and Heart's Ease 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.

Worth understanding: our licensed dataset holds no drug-interaction record for Heart's Ease at all — not against Ethambutol, 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.

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.

Heart's Ease safety at a glance

Heart's Ease overall Use caution Generally considered low-risk in traditional use, but high-quality safety data are limited.
Pregnancy Avoid Not enough safety information, so it is best avoided during pregnancy.
Breastfeeding Avoid Not enough safety information, so it is best avoided while breastfeeding.

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

Still wondering about combining Ethambutol and Heart's Ease? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Ethambutol’s Own FDA Label Lists

This is not an interaction — none of it involves Heart's Ease. These are the most notable effects listed in the ADVERSE REACTIONS section of Ethambutol’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 take both. 10 of them are worth acting on rather than waiting out — marked below.

  • Loss of vision Worth acting on
  • Hallucinations Worth acting on
  • Confusion Worth acting on
  • A severe skin reaction Worth acting on
  • A low platelet count Worth acting on
  • Kidney problems Worth acting on
  • A severe allergic reaction Worth acting on
  • A low white blood cell count Worth acting on
  • Liver problems Worth acting on
  • An allergic reaction Worth acting on

Showing the 10 most notable of 24 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 Ethambutol. Read the label on DailyMed › Heart's Ease’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Heart's Ease side to compare — that is a limit of the record, not a statement that Heart's Ease has no side effects.

How to take them

Some Ethambutol Products Have a Food Rule — Heart's Ease Should Not Break It

At least one FDA label for a product containing Ethambutol says to take it with food. If you take Heart's Ease on an empty stomach out of habit, keep them separate — and take Ethambutol with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Ethambutol products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

Absorption is not significantly altered by administration with food.

From the Dosage and Administration section of the FDA label we read for Ethambutol — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Ethambutol

This page covers Heart's Ease only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ethambutol page lists 17 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 · 9 minor.

Open the Ethambutol interaction page

One more smart check

Taking Heart's Ease as Part of a Dietary Supplement Product? Check It for Interactions

We hold 35 real supplement products containing Heart's Ease, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Heart's Ease. Even though Heart's Ease itself has no known interaction with Ethambutol, 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 Heart's Ease and Ethambutol 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 Heart's Ease
Steady interest

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

29 days ago today
Medication Ethambutol
Steady interest

#1,989 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 Heart's Ease reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Heart's Ease and Ethambutol 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 Heart's Ease

What is Heart's Ease?

  • Skin conditions like eczema and cradle cap
  • Mild respiratory complaints (cough)
  • Mild inflammation
  • Diuretic (increasing urine flow)
  • General 'blood cleansing' tonic

Heart's Ease (Viola tricolor) is a traditional European herb used mostly for skin problems and mild coughs. Modern human evidence for these uses is very limited, so it should be seen as a gentle traditional remedy rather than a proven treatment. Talk to your pharmacist or doctor before using it, especially if you are pregnant, breastfeeding, or giving it to a child.

Viola tricolor · Violaceae · Above-ground flowering parts (herb) · Tea, dried herb, tincture, topical preparations, capsules

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

Heart's Ease: dosing

There is no well-established, standardized dose for Heart's Ease. Traditional use varies widely depending on whether it is taken as a tea, tincture, or applied to the skin.The safest approach is to follow the directions on the product label and to start with the lowest suggested amount.

From our Heart's Ease monograph — the full record covers uses, side effects and every documented interaction.

Read the full Heart's Ease monograph & all interactions
Medication

About Ethambutol

What Is Ethambutol Used For?

Brand names: Myambutol, Etibi

Ethambutol hydrochloride tablets are used to treat pulmonary tuberculosis — TB that affects the lungs. It must always be taken with at least one other anti-TB medication, never on its own.

For people being treated for TB for the first time, ethambutol is commonly paired with isoniazid, or with isoniazid and streptomycin. For people who have been treated for TB before, it is combined with other second-line anti-TB drugs chosen based on which medicines the bacteria are still sensitive to.

See full Ethambutol drug information
Keep checking

Other Drugs & Heart's Ease

Browse every other medication we’ve checked against Heart's Ease — 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 Heart's Ease 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 Heart's Ease list.

See the full Heart's Ease interactions page
See every supplement checked against Ethambutol, ranked by severity
Evidence & sources

Heart's Ease References

The 4 references that drive our Heart's Ease 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. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Behmanesh Y, Abdollahi M. Hemolysis after consumption of Viola tricolor. WHO Drug Inf (Iran) 2002;16:15-16.
  3. Klovekorn, W., Tepe, A., and Danesch, U. A randomized, double-blind, vehicle-controlled, half-side comparison with a herbal ointment containing Mahonia aquifolium, Viola tricolor and Centella asiatica for the treatment of mild-to-moderate atopic dermatit
  4. Kirichenko TV, Sobenin IA, Markina YV, et al. Clinical effectiveness of a combination of black elder berries, violet herb, and calendula flowers in chronic obstructive pulmonary disease: the results of a double-blinded placebo-controlled study. Biology (B 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 Heart's Ease and Ethambutol Together: Common Questions

Is it safe to take Heart's Ease with Ethambutol?
We do not list a known interaction between Heart's Ease and Ethambutol. 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.
Should I take Heart's Ease and Ethambutol at the same time of day?
At least one FDA label for a product containing Ethambutol says to take it with food. If you take Heart's Ease on an empty stomach out of habit, keep them separate and take Ethambutol with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Ethambutol products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Does Ethambutol interact with any supplements?
Yes. Ethambutol has documented interactions with 17 supplements in our database — Heart's Ease is not one of them. The Ethambutol 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

Heart's Ease monograph Uses, safety profile, and every drug interaction in one place Ethambutol drug information The full plain-English guide to this medication Ethambutol supplement interactions Every supplement checked against Ethambutol, 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 4 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Ethambutol and Heart's Ease?

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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.