Fireweed + Sodium Phenylbutyrate, Taurursodiol
Sodium Phenylbutyrate, Taurursodiol brand name: Relyvrio.
We found no known interaction between Fireweed and Sodium Phenylbutyrate, Taurursodiol 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.
Fireweed and Sodium Phenylbutyrate, Taurursodiol
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 Sodium Phenylbutyrate, Taurursodiol and Fireweed 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 Fireweed at all — not against Sodium Phenylbutyrate, Taurursodiol, 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.
Fireweed safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Sodium Phenylbutyrate, Taurursodiol
This page covers Fireweed only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Sodium Phenylbutyrate, Taurursodiol page lists 20 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 · 10 moderate · 9 minor.
From our pharmacist’s overview on the Sodium Phenylbutyrate, Taurursodiol page
“Relyvrio (sodium phenylbutyrate and taurursodiol) treats ALS, a disease where losing part of a dose is a real loss, and that is exactly what most of these 20 interactions threaten, so give them a hard look before adding any supplement. Seventeen involve ingredients, mostly fibers, gums, and mucilage-rich herbs, that can change how much…”
Reviewed by 2 · Jul 18, 2026
Open the Sodium Phenylbutyrate, Taurursodiol interaction page
Taking Fireweed as Part of a Dietary Supplement Product? Check It for Interactions
We hold 5 real supplement products containing Fireweed, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Fireweed. Even though Fireweed itself has no known interaction with Sodium Phenylbutyrate, Taurursodiol, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Fireweed and Sodium Phenylbutyrate, Taurursodiol 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.
#958 of 1,452 supplements looked up here in the last 7 days
#400 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 Fireweed reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Fireweed and Sodium Phenylbutyrate, Taurursodiol records this page draws on were last updated June 22, 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 Fireweed
What is Fireweed?
- Prostate and urinary symptoms
- Digestive upset and diarrhea
- Skin irritation (topical)
- Sore throat and mouth inflammation
- General anti-inflammatory support
Fireweed is a wild flowering plant used traditionally as a tea and folk remedy, most often for prostate, urinary, digestive, and skin complaints. Human evidence is very limited, so its benefits are not well proven. Talk with your pharmacist or doctor before using it, and avoid it during pregnancy and breastfeeding.
Epilobium angustifolium · Onagraceae · Aerial parts (leaves, flowers, and stems); a related species, Epilobium parviflorum, is often used for prostate concerns · Tea, dried herb, tincture, capsules, topical preparations
An interaction check asks whether these two react with each other — it does not ask whether Fireweed is a good idea for someone in your situation. Here is what our Fireweed record says about it on its own.
Fireweed: dosing
There is no well-established standardized dose for fireweed. Traditional use often involves a tea made from the dried leaves, while supplements come in capsules or tinctures with varying strengths.Because products differ so much, the safest approach is to follow the directions on the product label and not exceed the recommended amount. A pharmacist can help you review a specific product and decide whether it is appropriate for you.If you do not notice benefit, or you have ongoing symptoms, see a healthcare provider instead of increasing the dose on your own.
From our Fireweed monograph — the full record covers uses, side effects and every documented interaction.
About Sodium Phenylbutyrate and Taurursodiol
What Is Sodium Phenylbutyrate and Taurursodiol Used For?
Brand name: Relyvrio
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Sodium phenylbutyrate and taurursodiol is used for the treatment of amyotrophic lateral sclerosis (ALS, Lou Gehrig's disease; a condition in which the nerves that control muscle movement slowly die, causing the muscles to shrink and weaken). Sodium phenylbutyrate is a histone deacetylase inhibitor. Taurursodiol is a bile acid. It is not known exactly how the combination of sodium phenylbutyrate and taurursodiol works, but it may reduce the breakdown and death of nerve cells associated with the worsening of ALS symptoms.
Other Drugs & Fireweed
Browse every other medication we’ve checked against Fireweed — 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 Fireweed 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 ›
- Levothyroxine, Liothyronine ›
- Amlodipine Besylate ›
- Docusate ›
- Methamphetamine ›
- Amitriptyline ›
- Metformin ›
- Prednisone ›
- Tadalafil ›
- Lisdexamfetamine ›
- Semaglutide ›
- Hydroxyurea ›
- Valacyclovir ›
- Amphetamine ›
- Sumatriptan ›
- Propranolol ›
- Methotrexate ›
- Lisinopril ›
- Amoxicillin ›
- Bupropion ›
- Fluoxetine ›
- Azithromycin ›
- Doxycycline ›
- Pregabalin ›
- Acetaminophen, Aspirin, Caffeine ›
- Gabapentin ›
- 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 Fireweed list.
Fireweed References
The 1 references that drive our Fireweed 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.
- Esposito C, Santarcangelo C, Masselli R, et al. Epilobium angustifolium L. extract with high content in oenothein B on benign prostatic hyperplasia: A monocentric, randomized, double-blind, placebo-controlled clinical trial. Biomed Pharmacother. 2021 Jun; 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.
Sodium Phenylbutyrate, Taurursodiol Is Linked to Lower Levels of 5 Nutrients
Natural Medicines records Sodium Phenylbutyrate, Taurursodiol as a medicine that can lower these. This is not an interaction with Fireweed — 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 Sodium Phenylbutyrate, Taurursodiol 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 Fireweed and Sodium Phenylbutyrate, Taurursodiol Together: Common Questions
Is it safe to take Fireweed with Sodium Phenylbutyrate, Taurursodiol?
Does Sodium Phenylbutyrate, Taurursodiol 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.