Norway Spruce + Acenocoumarol
Acenocoumarol brand name: Sintrom.
We found no known interaction between Norway Spruce and Acenocoumarol 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.
Norway Spruce and Acenocoumarol
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 Acenocoumarol and Norway Spruce 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 Norway Spruce at all — not against Acenocoumarol, 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.
Norway Spruce safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Acenocoumarol
This page covers Norway Spruce only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Acenocoumarol page lists 221 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Danshen (major), Piracetam (major), Acetyl-l-carnitine (moderate) and Aconite (moderate).
By severity: 3 major · 193 moderate · 25 minor.
From our pharmacist’s overview on the Acenocoumarol page
“Acenocoumarol (Sintrom) is a blood thinner in the warfarin family, and it lives in a narrow zone where a little too much means bleeding and a little too little means clots. So treat its 221 supplement interactions as a real safety issue, not fine print.”
Reviewed by 2 · Jul 18, 2026
Where Norway Spruce and Acenocoumarol 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.
#1,280 of 1,452 supplements looked up here in the last 7 days
#182 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.
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Norway Spruce and Acenocoumarol 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 Norway Spruce
What is Norway Spruce?
- Coughs and chest congestion
- Sore muscles and joint discomfort
- Inhalation for stuffy nose
- Antimicrobial and wound care (traditional)
- Mild antioxidant support
Norway Spruce is an evergreen tree whose needles, shoots, bark, and essential oil have long been used in traditional medicine for coughs, congestion, and sore muscles. Solid human research is very limited, so most uses rest on tradition and lab studies. Use it cautiously, especially the concentrated essential oil, and talk to your pharmacist or doctor before using it medicinally.
Picea abies · Pinaceae · Needles, young shoots, bark, resin, and essential oil · Essential oil, tea (from needles or shoots), syrup, extracts, and topical balms
An interaction check asks whether these two react with each other — it does not ask whether Norway Spruce is a good idea for someone in your situation. Here is what our Norway Spruce record says about it on its own.
Norway Spruce: dosing
There is no standardized or well-established medicinal dose for Norway Spruce. Traditional use varies widely depending on whether you are using a tea, syrup, extract, or essential oil.If you use a commercial product, follow the directions on the label exactly.
From our Norway Spruce monograph — the full record covers uses, side effects and every documented interaction.
Other Drugs & Norway Spruce
Browse every other medication we’ve checked against Norway Spruce — 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 Norway Spruce against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Ivermectin ›
- Losartan Potassium ›
- Aspirin ›
- Abemaciclib ›
- Acetaminophen ›
- Metoprolol ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Tadalafil ›
- Tirzepatide ›
- Methamphetamine ›
- Ibuprofen ›
- Warfarin Sodium ›
- Valacyclovir ›
- Hydroxyurea ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Amitriptyline ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Amlodipine Besylate ›
- Methotrexate ›
- Bendamustine ›
- Bupropion ›
- Amphetamine ›
- Doxycycline ›
- Fluoxetine ›
- Azithromycin ›
- Acyclovir ›
- Pregabalin ›
- Lamotrigine ›
- Dextroamphetamine ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Levothyroxine, Liothyronine ›
- Clonazepam ›
- Quetiapine ›
- Naproxen ›
- Omeprazole ›
- Letrozole ›
- Duloxetine ›
- Methylene Blue ›
- Buspirone ›
- Citalopram ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Norway Spruce list.
Sources & How We Checked
We checked Norway Spruce against Acenocoumarol in the Natural Medicines interaction database and found no documented interaction on file. The medication overview comes from MedlinePlus, and supplement label details from the NIH Dietary Supplement Label Database.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference for vitamins, herbs and supplements — the basis for our interaction data.
- MedlinePlus, U.S. National Library of Medicine — NIH consumer drug information, used for the medication overviews.
- NIH Dietary Supplement Label Database (DSLD) — Official supplement product labels.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC
Taking Norway Spruce and Acenocoumarol Together: Common Questions
Is it safe to take Norway Spruce with Acenocoumarol?
Does Acenocoumarol interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Still Have a Question About Acenocoumarol and Norway Spruce?
Our pharmacists answer your medication & supplement questions — free.
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.