Drug & supplement interaction

Niauli Oil + Zileuton

Zileuton brand names: Zyflo, Zyflo CR.

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 Niauli Oil and Zileuton 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 Zileuton states a food rule worth keeping to, and 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

Niauli Oil and Zileuton

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 Zileuton and Niauli Oil 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 Niauli Oil at all — not against Zileuton, 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.

Niauli Oil safety at a glance

Niauli Oil overall Use caution Generally used topically or by inhalation when diluted, but it is a potent essential oil that can irritate skin and is toxic if swallowed in large amounts.
Pregnancy Avoid Safety is not established, so it is best avoided during pregnancy.
Breastfeeding Avoid Not enough safety data, so avoid use while breastfeeding.

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

Still wondering about combining Zileuton and Niauli Oil? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Niauli Oil and Zileuton May Share Several of the Same Side Effects

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 taking both 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.

  • Wheezing Worth acting on reported in 11.9% of FDA reports for Zileuton Additional detail

    Niauli Oil

    “Orally, niauli oil can cause nausea, vomiting, and diarrhea (2). The consumption of amounts greater than 10 grams can cause hypotension, circulatory disorders, collapse, and respiratory failure (18).

    Topically, it can cause glottal spasm, bronchospasm, and respiratory failure when applied to facial and nasal areas of infants and small children (2,18).”

    Niauli Oil · Natural Medicines adverse-effect record, reported in diarrhea.

    2 sources cited
    1. 2. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
    2. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

    Zileuton

    Listed in the ADVERSE REACTIONS section of the FDA label for Zileuton, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

  • Nausea / Diarrhea / Vomiting reported in 6.3% of FDA reports for Zileuton Additional detail

    Niauli Oil

    Recorded for Niauli Oil in the same Natural Medicines adverse-effect record shown under Wheezing above.

    Zileuton

    Listed in the ADVERSE REACTIONS section of the FDA label for Zileuton, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

Reported for Niauli Oil but not commonly for Zileuton: low blood pressure.

Effects for Zileuton come from the ADVERSE REACTIONS section of its FDA label; effects for Niauli Oil come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 637 voluntary FDA FAERS reports for Zileuton 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.

How to take them

Some Zileuton Products Have a Food Rule — Niauli Oil Should Not Break It

At least one FDA label for a product containing Zileuton says to take it with food. If you take Niauli Oil on an empty stomach out of habit, keep them separate — and take Zileuton 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 Zileuton 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.

For ease of administration, ZYFLO may be taken with meals and at bedtime.

From the Dosage and Administration section of the FDA label we read for Zileuton — 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 Zileuton

This page covers Niauli Oil only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Zileuton page lists 213 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Beer (major), Grapefruit (major), Siberian Cocklebur (major) and St. John's Wort (major).

By severity: 6 major · 163 moderate · 44 minor.

Open the Zileuton interaction page

How much people look this up

Where Niauli Oil and Zileuton 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 Niauli Oil
Steady interest

#1,445 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Zileuton
Top half

#1,296 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 Niauli Oil reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Niauli Oil and Zileuton 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 Niauli Oil

What is Niauli Oil?

  • Coughs and congestion
  • Sore throat
  • Minor skin infections
  • Wound care (traditional)
  • General antiseptic use

Niaouli oil is an essential oil from the Melaleuca quinquenervia tree, often used in folk medicine and aromatherapy for respiratory complaints and as an antiseptic. Solid human evidence for these uses is limited, and like other concentrated essential oils it must be diluted and never swallowed without medical guidance. Talk to a pharmacist or doctor before using it, especially in children, during pregnancy, or while breastfeeding.

Melaleuca quinquenervia · Myrtaceae · Leaves and twigs (steam-distilled into essential oil) · Essential oil, diluted topical blends, inhalation/diffuser products, some throat lozenges and cough preparations

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

Niauli Oil: dosing

There is no officially established or standardized dose for niaouli oil. Effective and safe amounts have not been well defined in human studies.For topical use, essential oils are typically diluted to a low percentage in a carrier oil; for inhalation, only a few drops are used in a diffuser or bowl of hot water. The safest approach is to follow the directions on a finished product's label and not to apply the oil undiluted.Do not take niaouli oil by mouth unless a qualified healthcare professional advises it.

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

Read the full Niauli Oil monograph & all interactions
Medication

About Zileuton

What Is Zileuton Used For?

Brand names: Zyflo, Zyflo CR

Zileuton is used for the ongoing prevention and treatment of asthma in adults and adolescents aged 12 and older. It is a maintenance medicine — meaning it is taken regularly to keep asthma under control, not to stop an asthma attack once it has started.

Zyflo (the tablet form) and zileuton extended-release tablets are both approved for this same purpose. Neither form should be used to treat a sudden asthma attack. However, both can be continued during a flare-up of asthma while you also use your rescue inhaler.

Most-Reported Side Effects for Zileuton

From FAERS, the FDA’s public side-effect reporting system (641 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Asthma 76 reports
Dyspnea 52 reports
Nausea 40 reports
Pneumonia 33 reports
Cough 31 reports
See full Zileuton drug information
Keep checking

Other Drugs & Niauli Oil

Browse every other medication we’ve checked against Niauli Oil — 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 Niauli Oil 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 Niauli Oil list.

See the full Niauli Oil interactions page
See every supplement checked against Zileuton, ranked by severity
Evidence & sources

Niauli Oil References

The 2 references that drive our Niauli Oil 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. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
  2. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

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 Niauli Oil and Zileuton Together: Common Questions

Is it safe to take Niauli Oil with Zileuton?
We do not list a known interaction between Niauli Oil and Zileuton. 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 Niauli Oil and Zileuton have any of the same side effects?
Yes — our sources link each of them separately to 4 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.
Should I take Niauli Oil and Zileuton at the same time of day?
At least one FDA label for a product containing Zileuton says to take it with food. If you take Niauli Oil on an empty stomach out of habit, keep them separate and take Zileuton with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Zileuton products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Does Zileuton interact with any supplements?
Yes. Zileuton has documented interactions with 213 supplements in our database — Niauli Oil is not one of them. The Zileuton 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

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

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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.