Lungmoss + Terfenadine
Terfenadine brand name: Seldane.
We found no known interaction between Lungmoss and Terfenadine 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.
Lungmoss and Terfenadine
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 Terfenadine and Lungmoss 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 Lungmoss at all — not against Terfenadine, 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.
Lungmoss safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Terfenadine
This page covers Lungmoss only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Terfenadine page lists 65 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), American Hellebore (major), Arsenic (major), Cesium (major) and Ephedra (major).
By severity: 8 major · 42 moderate · 15 minor.
From our pharmacist’s overview on the Terfenadine page
“Terfenadine (Seldane) is an older antihistamine with a well-known heart rhythm hazard, and its supplement list warrants genuine caution. Eight of the 65 interactions on file are rated major, and the biggest danger is additive strain on the heart's electrical timing: 13 ingredients can prolong the QT interval the way terfenadine itself…”
Reviewed by 2 · Jul 18, 2026
Where Lungmoss and Terfenadine 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.
#783 of 1,452 supplements looked up here in the last 7 days
#1,450 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. Lungmoss is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
- Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Lungmoss reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Lungmoss and Terfenadine records this page draws on were last updated July 11, 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 Lungmoss
What is Lungmoss?
- Coughs and respiratory complaints
- Sore throat
- Loss of appetite
- Digestive upset
- Wound and skin care (traditional, topical)
Lungmoss (Lobaria pulmonaria) is a forest lichen used in traditional folk medicine mostly for coughs and respiratory problems. There is very little modern human research to support these uses, and its safety has not been well studied, so it should be used with caution and only after talking with a pharmacist or doctor.
Lobaria pulmonaria · Lobariaceae · Whole lichen (thallus) · Tea, tincture, dried lichen, occasionally in syrups or topical preparations
An interaction check asks whether these two react with each other — it does not ask whether Lungmoss is a good idea for someone in your situation. Here is what our Lungmoss record says about it on its own.
Lungmoss: dosing
There is no established or standardized dose for lungmoss. Traditional uses involved brewing the dried lichen into a tea or making a tincture, but reliable, science-based dosing guidelines do not exist.If you choose to use a commercial product, follow the directions on the label and do not exceed the recommended amount.
From our Lungmoss monograph — the full record covers uses, side effects and every documented interaction.
Other Drugs & Lungmoss
Browse every other medication we’ve checked against Lungmoss — 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 Lungmoss against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Warfarin ›
- Methylphenidate ›
- Sertraline ›
- Abemaciclib ›
- Ivermectin ›
- Testosterone ›
- Acetaminophen ›
- Losartan Potassium ›
- Aspirin ›
- Rosuvastatin ›
- Metoprolol ›
- Clopidogrel ›
- Escitalopram ›
- Rivaroxaban ›
- Atorvastatin ›
- Docusate ›
- Tirzepatide ›
- Ibuprofen ›
- Methamphetamine ›
- Warfarin Sodium ›
- Tadalafil ›
- Valacyclovir ›
- Hydroxyurea ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Amitriptyline ›
- Propranolol ›
- Metformin ›
- Lisdexamfetamine ›
- Isotretinoin ›
- Amoxicillin ›
- Methotrexate ›
- Lisinopril ›
- Amlodipine Besylate ›
- Amphetamine ›
- Bendamustine ›
- Bupropion ›
- Fluoxetine ›
- Doxycycline ›
- Azithromycin ›
- Pregabalin ›
- Acyclovir ›
- Lamotrigine ›
- Dextroamphetamine ›
- Gabapentin ›
- Levothyroxine, Liothyronine ›
- Acetaminophen, Codeine ›
- Naproxen ›
- Clonazepam ›
- Quetiapine ›
- Omeprazole ›
- Duloxetine ›
- Letrozole ›
- Methylene Blue ›
- Citalopram ›
- Buspirone ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Lungmoss list.
Lungmoss References
The 3 sources that drive our Lungmoss monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Lungmoss is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.
- Lungwort — MedlinePlus / NIH (Drugs and Supplements) Source
- Using Dietary Supplements Wisely — NIH NCCIH Source
- Dietary Supplements: What You Need to Know — NIH Office of Dietary Supplements Source
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.
Taking Lungmoss and Terfenadine Together: Common Questions
Is it safe to take Lungmoss with Terfenadine?
Does Terfenadine interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.