Heather + Infigratinib
Infigratinib brand name: Truseltiq.
We found no known interaction between Heather and Infigratinib 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.
Heather and Infigratinib
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 Infigratinib and Heather 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 Heather at all — not against Infigratinib, 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.
Heather safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Infigratinib
This page covers Heather only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Infigratinib page lists 138 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Acacia Rigidula (moderate) and Adrafinil (moderate).
By severity: 3 major · 94 moderate · 41 minor.
From our pharmacist’s overview on the Infigratinib page
“Infigratinib (Truseltiq) treats a form of bile duct cancer, and the supplements on this list deserve genuine care, because most of them can shift how much of the drug actually reaches your blood. Nearly all of these interactions run through CYP3A4, the liver enzyme that breaks infigratinib down.”
Reviewed by 2 · Jul 18, 2026
Taking Heather as Part of a Dietary Supplement Product? Check It for Interactions
We hold 40 real supplement products containing Heather, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Heather. Even though Heather itself has no known interaction with Infigratinib, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Heather and Infigratinib 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.
#892 of 1,452 supplements looked up here in the last 7 days
#1,942 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. Heather 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 Heather reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Heather and Infigratinib 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 Heather
What is Heather?
- Urinary tract complaints
- Mild fluid retention
- Joint and rheumatic discomfort
- Sleep and relaxation
- Skin and wound care (topical)
Heather (Calluna vulgaris) is a traditional European herb used mainly as a tea for urinary and minor inflammatory complaints, but high-quality human studies are lacking. It is generally considered gentle when used as a tea, though its effectiveness is largely unproven, so check with a pharmacist or doctor before relying on it.
Calluna vulgaris · Ericaceae · Flowering tops and aerial parts · Tea (dried flowers), tincture, liquid extract, capsules
An interaction check asks whether these two react with each other — it does not ask whether Heather is a good idea for someone in your situation. Here is what our Heather record says about it on its own.
Heather: dosing
There is no established standardized dose for heather. Traditional use is mostly as a tea made from the dried flowering tops, but exact amounts vary widely between products and sources.The safest approach is to follow the directions on the product label and not exceed them.
From our Heather monograph — the full record covers uses, side effects and every documented interaction.
About Infigratinib
What Is Infigratinib Used For?
Brand name: Truseltiq
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Infigratinib is used in adults who have received previous therapy to treat a certain type of cholangiocarcinoma (bile duct cancer) that has spread to nearby tissues or other parts of the body and cannot be removed by surgery. Infigratinib is in a class of medications called kinase inhibitors. It works by blocking the action of the abnormal protein that signals cancer cells to multiply. This helps stop or slow the spread of cancer cells.
Other Drugs & Heather
Browse every other medication we’ve checked against Heather — 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 Heather against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Losartan Potassium ›
- Testosterone ›
- Ivermectin ›
- Abemaciclib ›
- Aspirin ›
- Metoprolol ›
- Acetaminophen ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Tadalafil ›
- Docusate ›
- Tirzepatide ›
- Ibuprofen ›
- Methamphetamine ›
- Hydroxyurea ›
- Warfarin Sodium ›
- Valacyclovir ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Lisdexamfetamine ›
- Propranolol ›
- Metformin ›
- Amitriptyline ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Methotrexate ›
- Amlodipine Besylate ›
- Bendamustine ›
- Bupropion ›
- Amphetamine ›
- Fluoxetine ›
- Doxycycline ›
- Acyclovir ›
- Azithromycin ›
- Lamotrigine ›
- Pregabalin ›
- Dextroamphetamine ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Quetiapine ›
- Clonazepam ›
- Levothyroxine, Liothyronine ›
- Naproxen ›
- Omeprazole ›
- Letrozole ›
- Methylene Blue ›
- Duloxetine ›
- Citalopram ›
- Buspirone ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Heather list.
Heather References
The 2 sources that drive our Heather monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Heather is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.
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 Heather and Infigratinib Together: Common Questions
Is it safe to take Heather with Infigratinib?
Does Infigratinib 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.