Masterwort + Efgartigimod alfa-fcab
Efgartigimod alfa-fcab brand name: Vyvgart.
We found no known interaction between Masterwort and Efgartigimod alfa-fcab 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.
Masterwort and Efgartigimod alfa-fcab
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 Efgartigimod alfa-fcab and Masterwort 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.
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.
Masterwort safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Why No Interaction Is Listed for Efgartigimod alfa-fcab
Interactions in our licensed database are recorded against drug classes, not just single drug names. Efgartigimod alfa-fcab is filed under a single classification — immunosuppressants. Masterwort has documented interactions with 1 drug class — the most serious being photosensitizing drugs (moderate) — and none of Efgartigimod alfa-fcab’s classifications are among them.
Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.
Masterwort Does Interact With Other Medications
Masterwort has 335 moderate known drug interactions in our database — Efgartigimod alfa-fcab isn’t one of them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Masterwort
We haven’t checked that one against Masterwort yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Masterwort. Pick one to open its full report.
See Every Supplement That Interacts With Efgartigimod alfa-fcab
This page covers Masterwort only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Efgartigimod alfa-fcab page lists 53 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Active Hexose Correlated Compound (ahcc) (moderate), Alfalfa (moderate), American Ginseng (moderate), Andrographis (moderate) and Ashwagandha (moderate).
By severity: 52 moderate · 1 minor.
From our pharmacist’s overview on the Efgartigimod alfa-fcab page
“Every supplement on this list points the same direction for someone taking efgartigimod alfa-fcab (Vyvgart). The drug works by dialing down part of the immune system to treat generalized myasthenia gravis, and each of these ingredients, echinacea, astragalus, and American ginseng among them, is thought to stimulate immunity, which coul…”
Reviewed by 2 · Jul 18, 2026
Where Masterwort and Efgartigimod alfa-fcab 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.
#391 of 1,452 supplements looked up here in the last 7 days
#1,147 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 Masterwort reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Masterwort and Efgartigimod alfa-fcab records this page draws on were last updated June 20, 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 Masterwort
What is Masterwort?
- Digestive upset
- Mild anxiety and tension
- Skin complaints
- Respiratory and cough relief
- Traditional tonic
Masterwort (Heracleum sphondylium), a plant in the carrot family, has a long folk-medicine history for digestion, nerves, and skin. Modern scientific evidence to support these uses is very limited, and the plant can cause skin reactions to sunlight, so use it cautiously and talk with your pharmacist or doctor first.
Heracleum sphondylium · Apiaceae · Root, leaves, seeds, and aerial parts · Tea, tincture, dried herb, essential oil
An interaction check asks whether these two react with each other — it does not ask whether Masterwort is a good idea for someone in your situation. Here is what our Masterwort record says about it on its own.
Masterwort: dosing
There is no standardized, well-established dose for masterwort. Traditional preparations vary widely, and product strengths are not consistent.If you choose to use a commercial product, follow the directions on the label and do not exceed the suggested amount.
From our Masterwort monograph — the full record covers uses, side effects and every documented interaction.
About Efgartigimod alfa-fcab Injection
What Is Efgartigimod alfa-fcab Injection Used For?
Brand name: Vyvgart
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Efgartigimod alfa-fcab injection is used to treat a certain form of myasthenia gravis (MG; a disorder of the nervous system that causes muscle weakness). Efgartigimod alfa-fcab is in a group of medications called monoclonal antibodies. It works by reducing a certain natural substance in the body that causes symptoms of myasthenia gravis.
Other Drugs & Masterwort
Browse every other medication we’ve checked against Masterwort — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
335 interactions
- Diclofenac Sodium ›
- Diltiazem ›
- Nifedipine ›
- Ibuprofen ›
- Diphenhydramine ›
- Naproxen ›
- Doxycycline ›
- Minocycline ›
- Tetracycline ›
- Hydrochlorothiazide ›
- Quinidine ›
- Glyburide ›
- Ciprofloxacin ›
- Flurbiprofen ›
- Isotretinoin ›
- Carbamazepine ›
- Diclofenac Potassium ›
- Tazarotene ›
- Trimipramine ›
- Etodolac ›
- Griseofulvin ›
- Ketoprofen ›
- Lofepramine ›
- Meloxicam ›
- Nortriptyline ›
- Ofloxacin ›
- Selegiline ›
- Topiramate ›
- Tretinoin ›
- Trichlormethiazide ›
- Aripiprazole ›
- Azithromycin ›
- Bendroflumethiazide ›
- Dapsone ›
- Desipramine ›
- Doxepin ›
- Doxycycline Hyclate ›
- Fluphenazine ›
- Hydroxyzine ›
- Interferon Alfa-2b ›
- Interferon Beta-1b ›
- Levofloxacin ›
- Lisinopril ›
- Metolazone ›
- Paroxetine ›
- Sulfasalazine ›
- Valproic Acid ›
- Acetazolamide ›
- Aminolevulinic Acid Hydrochloride ›
- Amiodarone ›
- Aripiprazole Lauroxil ›
- Brompheniramine ›
- Captopril ›
- Celecoxib ›
- Chlorpheniramine ›
- Chlorpromazine ›
- Chlorpropamide ›
- Chlorthalidone ›
- Clomipramine ›
- Clozapine ›
Showing 60 of 335 moderate interactions — see all 335 on the Masterwort page.
No interaction 2,494 drugs checked — show the list
We also checked Masterwort against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Testosterone ›
- Metoprolol ›
- Aspirin ›
- Ivermectin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Escitalopram ›
- Tadalafil ›
- Acetaminophen ›
- Clopidogrel ›
- Valacyclovir ›
- Atorvastatin ›
- Docusate ›
- Hydroxyurea ›
- Abemaciclib ›
- Methamphetamine ›
- Sumatriptan ›
- Semaglutide ›
- Tirzepatide ›
- Warfarin Sodium ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Acyclovir ›
- Bupropion ›
- Metformin ›
- Amoxicillin ›
- Bendamustine ›
- Lamotrigine ›
- Methotrexate ›
- Acetaminophen, Codeine ›
- Gabapentin ›
- Amphetamine ›
- Pregabalin ›
- Dextroamphetamine ›
- Clonazepam ›
- Omeprazole ›
- Amlodipine Besylate ›
- Methylene Blue ›
- Duloxetine ›
- Letrozole ›
- Buspirone ›
- Bisoprolol ›
- Levothyroxine, Liothyronine ›
- Acetaminophen, Oxycodone ›
- Diazepam ›
- Cyclopentolate ›
- Candesartan Cilexetil ›
- Mannitol ›
- Cephalexin ›
- Roxithromycin ›
- Pegunigalsidase Alfa-iwxj ›
- Atorvastatin Calcium ›
- Acetaminophen, Dextromethorphan, Doxylamine ›
- Daptomycin ›
Showing the 60 most looked-up of 2,494 medications checked with no known interaction — see the full Masterwort list.
Masterwort References
The 1 references that drive our Masterwort 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.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 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.
Taking Masterwort and Efgartigimod alfa-fcab Together: Common Questions
Is it safe to take Masterwort with Efgartigimod alfa-fcab?
How was the Masterwort and Efgartigimod alfa-fcab combination checked?
Does Masterwort interact with any other medications?
Does Efgartigimod alfa-fcab 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.