Drug & supplement interaction

Lungmoss + Fostemsavir Tromethamine

Fostemsavir Tromethamine brand name: Rukobia.

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 Lungmoss and Fostemsavir Tromethamine 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

Lungmoss and Fostemsavir Tromethamine

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 Fostemsavir Tromethamine 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 Fostemsavir Tromethamine, 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

Lungmoss overall Not established There is little reliable human safety data for lungmoss.
Pregnancy Avoid Safety is not established, so avoid use during pregnancy.
Breastfeeding Avoid Safety is not established, so avoid use while breastfeeding.

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

Still wondering about combining Fostemsavir Tromethamine and Lungmoss? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Fostemsavir Tromethamine’s Own FDA Label Lists

This is not an interaction — none of it involves Lungmoss. These are the most notable effects listed in the ADVERSE REACTIONS section of Fostemsavir Tromethamine’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. 3 of them are worth acting on rather than waiting out — marked below.

  • Yellowing of the skin or eyes Worth acting on
  • Liver problems Worth acting on
  • A higher chance of infection Worth acting on
  • Vivid dreams or nightmares
  • Drowsiness
  • Trouble sleeping
  • Stomach upset
  • Tiredness mentioned in 3.8% of FDA reports for Fostemsavir Tromethamine
  • Stomach pain
  • A skin rash mentioned in 4.6% of FDA reports for Fostemsavir Tromethamine

Showing the 10 most notable of 14 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 Fostemsavir Tromethamine. Read the label on DailyMed › Where a percentage is shown, it is the share of 238 voluntary FDA FAERS reports for Fostemsavir Tromethamine that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Lungmoss’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Lungmoss side to compare — that is a limit of the record, not a statement that Lungmoss has no side effects.

Everything else you take

See Every Supplement That Interacts With Fostemsavir Tromethamine

This page covers Lungmoss only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Fostemsavir Tromethamine page lists 146 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 · 98 moderate · 40 minor.

Open the Fostemsavir Tromethamine interaction page

How much people look this up

Where Lungmoss and Fostemsavir Tromethamine 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 Lungmoss
Steady interest

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

29 days ago today
Medication Fostemsavir Tromethamine
Top half

#722 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. 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 27, 2026. The Lungmoss and Fostemsavir Tromethamine 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.
Data structure & sourcing designed and verified by .
Supplement

About Lungmoss

What is Lungmoss?

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.

Read the full Lungmoss monograph & all interactions
Medication

About Fostemsavir

What Is Fostemsavir Used For?

Brand name: Rukobia

Rukobia (fostemsavir) is used to treat HIV-1 infection in adults who have tried many other antiretroviral treatments and whose virus is no longer responding — due to resistance, side effects, or safety concerns. It is always used alongside other HIV medicines, not on its own.

Rukobia is specifically intended for heavily treatment-experienced patients with multidrug-resistant HIV-1 who are failing their current regimen. It is not a first-line HIV treatment.

Most-Reported Side Effects for Fostemsavir Tromethamine

From FAERS, the FDA’s public side-effect reporting system (238 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Nausea 17 reports
Rash 11 reports
Viral load increased 11 reports
Pathogen resistance 10 reports
Dizziness 9 reports
See full Fostemsavir drug information
Keep checking

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.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
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.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Lungmoss list.

See the full Lungmoss interactions page
See every supplement checked against Fostemsavir Tromethamine, ranked by severity
Evidence & sources

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.

  1. Lungwort — MedlinePlus / NIH (Drugs and Supplements) Source
  2. Using Dietary Supplements Wisely — NIH NCCIH Source
  3. 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.

Pharmacist Counseling Corner

Taking Lungmoss and Fostemsavir Tromethamine Together: Common Questions

Is it safe to take Lungmoss with Fostemsavir Tromethamine?
We do not list a known interaction between Lungmoss and Fostemsavir Tromethamine. 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 Fostemsavir Tromethamine interact with any supplements?
Yes. Fostemsavir Tromethamine has documented interactions with 146 supplements in our database — Lungmoss is not one of them. The Fostemsavir Tromethamine 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

Lungmoss monograph Uses, safety profile, and every drug interaction in one place Fostemsavir drug information The full plain-English guide to this medication Fostemsavir Tromethamine supplement interactions Every supplement checked against Fostemsavir Tromethamine, 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 3 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Fostemsavir Tromethamine and Lungmoss?

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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.