Tea Tree Oil + Cefaclor
Cefaclor brand names: Ceclor CD, Ceclor.
We found no known interaction between Tea Tree Oil and Cefaclor 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 Cefaclor 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.
Tea Tree Oil and Cefaclor
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 Cefaclor and Tea Tree 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 Tea Tree Oil at all — not against Cefaclor, 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.
Tea Tree Oil safety at a glance
Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Tea Tree Oil in Pregnancy & Breastfeeding
When used topically and appropriately.
When used orally. Ingestion of tea tree oil can be toxic.
DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center
Some Cefaclor Products Have a Food Rule — Tea Tree Oil Should Not Break It
At least one FDA label for a product containing Cefaclor says to take it with food. If you take Tea Tree Oil on an empty stomach out of habit, keep them separate — and take Cefaclor 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 Cefaclor 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.
DOSAGE AND ADMINISTRATION The absorption of cefaclor extended-release tablets is enhanced when it is administered with food.
From the Dosage and Administration section of the FDA label we read for Cefaclor — 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.
What Cefaclor Is Prescribed For, and What Tea Tree Oil Has Been Studied For
These two come up together because they touch the same health topic — not because they do the same job. Cefaclor is a prescription medicine with approved uses on its FDA label. Tea Tree Oil is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.
Cefaclor is prescribed for: Cefaclor treats a range of bacterial infections. The capsule and oral suspension forms are used for ear infections (otitis media), lower respiratory tract infections including pneumonia, strep throat and tonsillitis, urinary tract infections (including kidney infections and bladder infections), and skin and skin structure infections. The extended-release tablet form of Cefaclor is approved for a narrower set of uses: acute bacterial flare-ups of chronic bronchitis, strep throat and tonsillitis, and uncomplicated skin infections. Not all infections approved for the capsule or suspension are approved for the extended-release tablet — your prescriber will choose the right form for your infection.
Tea Tree Oil has been studied for:
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Otitis media studied, not established Tea Tree Oil has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows
Tea Tree Oil for otitis media
Although there is interest in using tea tree oil in the ear for otitis media, there is insufficient reliable information about the clinical effects of tea tree oil 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 Cefaclor on your own; if you are taking Tea Tree Oil for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.
See Every Supplement That Interacts With Cefaclor
This page covers Tea Tree Oil only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Cefaclor page lists 60 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Asarabacca (major), Siberian Cocklebur (major), African Wild Potato (moderate) and Aristolochia (moderate).
By severity: 3 major · 46 moderate · 11 minor.
From our pharmacist’s overview on the Cefaclor page
“The entries worth understanding before any others on this cefaclor (Ceclor) page are the kidney risks and charcoal. Cefaclor is a cephalosporin antibiotic, typically a short course for ear, sinus, throat, or skin infections, and two herbs here, Siberian cocklebur and asarabacca, can damage the kidneys on their own, so pairing either wi…”
Reviewed by 2 · Jul 18, 2026
Where Tea Tree Oil and Cefaclor 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.
#1,385 of 1,452 supplements looked up here in the last 7 days
#245 of 2,830 medications looked up here in the last 7 days
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 Tea Tree Oil reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Tea Tree Oil and Cefaclor 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.
About Tea Tree Oil
What is Tea Tree Oil?
- Acne
- Fungal skin infections (athlete's foot, nail fungus)
- Dandruff
- Minor wounds and insect bites
- Lice
Tea tree oil is an essential oil used on the skin for acne, fungal infections, and other skin problems, with some supportive but limited evidence. It is for topical use only and should never be swallowed, as it can be toxic. Always dilute it, do a patch test first, and check with your pharmacist or doctor before using.
Melaleuca alternifolia · Myrtaceae · Leaves and twigs (steam-distilled into essential oil) · Essential oil, creams, gels, ointments, soaps, shampoos, mouthwash
An interaction check asks whether these two react with each other — it does not ask whether Tea Tree Oil is a good idea for someone in your situation. Here is what our Tea Tree Oil record says about it on its own.
Tea Tree Oil: dosing
There is no official standardized dose for tea tree oil. Many skin products contain it at low concentrations, often diluted to a small percentage of the total product.The safest approach is to follow the directions on the product label and not apply more or more often than directed. If you are using pure essential oil, dilute it with a carrier oil before use. Never take it by mouth.
From our Tea Tree Oil monograph — the full record covers uses, side effects and every documented interaction.
About Cefaclor
What Is Cefaclor Used For?
Brand names: Ceclor CD, Ceclor
Cefaclor treats a range of bacterial infections. The capsule and oral suspension forms are used for ear infections (otitis media), lower respiratory tract infections including pneumonia, strep throat and tonsillitis, urinary tract infections (including kidney infections and bladder infections), and skin and skin structure infections.
The extended-release tablet form of Cefaclor is approved for a narrower set of uses: acute bacterial flare-ups of chronic bronchitis, strep throat and tonsillitis, and uncomplicated skin infections. Not all infections approved for the capsule or suspension are approved for the extended-release tablet — your prescriber will choose the right form for your infection.
Most-Reported Side Effects for Cefaclor
From FAERS, the FDA’s public side-effect reporting system (1,535 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Tea Tree Oil
Browse every other medication we’ve checked against Tea Tree Oil — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Tea Tree Oil against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Ivermectin ›
- Abemaciclib ›
- Testosterone ›
- Losartan Potassium ›
- Sertraline ›
- Acetaminophen ›
- Rosuvastatin ›
- Aspirin ›
- Metoprolol ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Rivaroxaban ›
- Isotretinoin ›
- Tirzepatide ›
- Ibuprofen ›
- Warfarin Sodium ›
- Amlodipine Besylate ›
- Levothyroxine, Liothyronine ›
- Docusate ›
- Methamphetamine ›
- Prednisone ›
- Metformin ›
- Amitriptyline ›
- Tadalafil ›
- Semaglutide ›
- Lisdexamfetamine ›
- Hydroxyurea ›
- Valacyclovir ›
- Amphetamine ›
- Sumatriptan ›
- Propranolol ›
- Methotrexate ›
- Lisinopril ›
- Amoxicillin ›
- Bupropion ›
- Fluoxetine ›
- Azithromycin ›
- Pregabalin ›
- Doxycycline ›
- Gabapentin ›
- Acetaminophen, Aspirin, Caffeine ›
- Dextroamphetamine ›
- Lamotrigine ›
- Naproxen ›
- Bendamustine ›
- Quetiapine ›
- Clonazepam ›
- Acyclovir ›
- Buspirone ›
- Duloxetine ›
- Omeprazole ›
- Letrozole ›
- Citalopram ›
- Methylene Blue ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Tea Tree Oil list.
Tea Tree Oil References
The 31 references that drive our Tea Tree 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.
- Robbers JE, Tyler VE. Tyler's Herbs of Choice: The Therapeutic Use of Phytomedicinals. New York, NY: The Haworth Herbal Press, 1999.
- Foster S, Tyler VE. Tyler's Honest Herbal, 4th ed., Binghamton, NY: Haworth Herbal Press, 1999. DOI
- De Groot AC. Airborn allergic contact dermatitis from tea tree oil. Contact Dermatitis 1996;35:304-5.
- Rubel DM, Freeman S, Southwell IA. Tea tree oil allergy: what is the offending agent? Report of three cases of tea tree oil allergy and review of the literature. Australas J Dermatol 1998;39:244-7. PubMed
- Carson CF, Riley TV, Cookson BD. Efficacy and safety of tea tree oil as a topical antimicrobial agent. J Hosp Infect 1998;40:175-8. PubMed
- Bhushan M, Beck MH. Allergic contact dermatitis from tea tree oil in a wart paint. Contact Dermatitis 1997;36:117-8. PubMed
- Del Beccaro MA. Melaleuca oil poisoning in a 17-month-old. Vet Hum Toxicol 1995;37:557-8.
- Jandourek A, Vaishampayan JK, Vazquez JA. Efficacy of melaleuca oral solution for the treatment of fluconazole refractory oral candidiasis in AIDS patients. AIDS 1998;12:1033-7. DOI
- Zhang SY, Robertson D. A study of tea tree oil ototoxicity. Audiol Neurootol 2000;5:64-8. PubMed
- Bassett IB, Pannowitz DL, Barnetson RS. A comparative study of tea-tree oil versus benzoylperoxide in the treatment of acne. Med J Aust 1990;153:455-8. PubMed
- Jacobs MR, Hornfeldt CS. Melaleuca oil poisoning. J Toxicol Clin Toxicol 1994;32:461-4.. PubMed
- Elliott C. Tea tree oil poisoning. Med J Aust 1993;159:830-1. PubMed
- Knight TE, Hausen BM. Melaleuca oil (tea tree oil) dermatitis. J Am Acad Dermatol 1994;30:423-7.. PubMed
- Bruynzeel DP. Contact dermatitis due to tea tree oil. Trop Med Int Health 1999;4:630.
- Greig JE, Thoo SL, Carson CF, Riley TV. Allergic contact dermatitis following use of a tea tree oil hand-wash not due to tea tree oil. Contact Dermatitis 1999;41:354-5. PubMed
- Varma S, Blackford S, Statham BN, Blackwell A. Combined contact allergy to tea tree oil and lavender oil complicating chronic vulvovaginitis. Contact Dermatitis 2000;42:309-10.
- Khanna M, Qasem K, Sasseville D. Allergic contact dermatitis to tea tree oil with erythema multiforme-like id reaction. Am J Contact Dermat 2000;11:238-42..
- Satchell AC, Saurajen A, Bell C, Barnetson RS. Treatment of interdigital tinea pedis with 25% and 50% tea tree oil solution: a randomized, placebo-controlled, blinded study. Australas J Dermatol 2002;43:175-8.. PubMed
- Morris MC, Donoghue A, Markowitz JA, Osterhoudt KC. Ingestion of tea tree oil (Melaleuca oil) by a 4-year-old boy. Pediatr Emerg Care 2003;19:169-71. PubMed
- Martin KW, Ernst E. Herbal medicines for treatment of fungal infections: a systematic review of controlled clinical trials. Mycoses 2004;47:87-92. PubMed
- De Groot A. C. and Weyland J. W. Systemic contact dermatitis from tea tree oil. Contact Dermatitis 1992;27(4):279-280. PubMed
- Enshaieh S, Jooya A, Siadat AH, and Iraji F. The efficacy of 5% topical tea tree oil gel in mild to moderate acne vulgaris: a randomized, double-blind placebo-controlled study. Indian J Dermatol Venereol Leprol 2007;73(1):22-25. PubMed
- Christoffers WA, Blömeke B, Coenraads PJ, Schuttelaar ML. Co-sensitization to ascaridole and tea tree oil. Contact Dermatitis. 2013 Sep;69(3):187-9. PubMed
- Corazza M, Borghi A, Gallo R, Schena D, Pigatto P, Lauriola MM, Guarneri F, Stingeni L, Vincenzi C, Foti C, Virgili A. Topical botanically derived products: use, skin reactions, and usefulness of patch tests. A multicentre Italian study. Contact Dermatiti
- Kwon HH, Yoon JY, Park SY, Min S, Suh DH. Comparison of clinical and histological effects between lactobacillus-fermented Chamaecyparis obtusa and tea tree oil for the treatment of acne: an eight-week double-blind randomized controlled split-face study. D PubMed
- Martínez Campayo N, Goday Buján JJ, Fonseca Capdevila E. Allergic contact dermatitis due to tea tree oil. Actas Dermosifiliogr (Engl Ed). 2020;111(9):787-788. DOI
- Lauriola MM, Sena P, De Bitonto A, Corazza M. Allergic contact dermatitis due to "therapeutic uses" of tea tree oil on the lips and toenails. Dermatitis. 2021;32(3):e40-e41. PubMed
- Navarro-Triviño FJ, Prados-Carmona Á, Ruiz-Villaverde R. Systemic allergic contact dermatitis caused by tea tree oil in a cream for treatment of molluscum contagiosum. Contact Dermatitis 2022;87(3):285-287. PubMed
- Bekhof AMW, van Hunsel FPAM, van de Koppel S, Woerdenbag HJ. Safety assessment and adverse drug reaction reporting of tea tree oil (Melaleuca aetheroleum). Phytother Res 2022.
- Ambrogio F, Foti C, Cazzato G, et al. Spreading Allergic Contact Dermatitis to Tea Tree Oil in an Over-the-Counter Product Applied on a Wart. Medicina (Kaunas) 2022;58(5):561. PubMed
- Samaran Q, Litovsky J, Girod M, Dereure O, Raison-Peyron N. Allergic Contact Dermatitis to Tea Tree Oil With No Sensitization to Fragrance Markers. Dermatitis 2023. 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.
Cefaclor Is Linked to Lower Levels of 7 Nutrients
Natural Medicines records Cefaclor as a medicine that can lower these. This is not an interaction with Tea Tree Oil — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Cefaclor nutrient depletion report ›
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Tea Tree Oil and Cefaclor Together: Common Questions
Is it safe to take Tea Tree Oil with Cefaclor?
Do Tea Tree Oil and Cefaclor have any of the same side effects?
Should I take Tea Tree Oil and Cefaclor at the same time of day?
Are Tea Tree Oil and Cefaclor used for the same thing?
Does Cefaclor interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Cefaclor and Tea Tree 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.