Mountain Flax + Propoxyphene
Propoxyphene brand names: Darvon, Prophene-65, Margesic, Davon.
We found no known interaction between Mountain Flax and Propoxyphene 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. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.
Mountain Flax and Propoxyphene
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 Propoxyphene and Mountain Flax 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 Mountain Flax at all — not against Propoxyphene, 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.
Mountain Flax safety at a glance
Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Mountain Flax in Pregnancy & Breastfeeding
When used orally due to possible emetic effects.
DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center
See Every Supplement That Interacts With Propoxyphene
This page covers Mountain Flax only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Propoxyphene page lists 172 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Beer (major), Gamma-hydroxybutyrate (ghb) (major) and Kava (major).
By severity: 8 major · 141 moderate · 23 minor.
From our pharmacist’s overview on the Propoxyphene page
“Propoxyphene (Darvon) is an opioid painkiller, and the biggest hazard among the 172 supplement interactions on file is anything else that slows the brain and breathing. Seventy-eight of these ingredients pile on that sedation, alcohol and kava among the worst rated, and with an opioid the combination can push breathing dangerously low.”
Reviewed by 2 · Jul 18, 2026
Where Mountain Flax and Propoxyphene 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.
#824 of 1,452 supplements looked up here in the last 7 days
#84 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 Mountain Flax reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Mountain Flax and Propoxyphene records this page draws on were last updated July 10, 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 Mountain Flax
What is Mountain Flax?
- Constipation
- Laxative/purgative
- Liver and digestive complaints
- Joint and rheumatic discomfort
- Traditional 'cleansing' remedies
Mountain Flax (Linum catharticum) is a small wild flax once used in traditional European herbalism mainly as a strong laxative or purgative. There is very little modern scientific evidence to support its use, and it can be harsh on the gut, so it is rarely recommended today. If you are considering any herbal laxative, talk to your pharmacist or doctor first.
Linum catharticum · Linaceae · Whole flowering plant (dried aerial parts) · Dried herb, tea/infusion, tincture (rare today)
An interaction check asks whether these two react with each other — it does not ask whether Mountain Flax is a good idea for someone in your situation. Here is what our Mountain Flax record says about it on its own.
Mountain Flax: dosing
There is no established or standardized dose for Mountain Flax, and it is not a common modern product. Older herbal traditions used small amounts of the dried plant as a tea, but exact safe amounts have not been studied.Because of this uncertainty and its strong purgative effect, we cannot recommend a specific dose.
From our Mountain Flax monograph — the full record covers uses, side effects and every documented interaction.
About Acetaminophen, Butalbital, and Caffeine
What Is Acetaminophen, Butalbital, and Caffeine Used For?
Brand names: Darvon, Prophene-65, Margesic, Davon
This three-ingredient combination — butalbital, acetaminophen, and caffeine — is used to relieve the symptoms of tension headache (also called muscle contraction headache). All supported products, including tablets, capsules, and oral solution, share this same approved use.
It is worth knowing that evidence for using this combination to treat repeated, frequent tension headaches over time is limited. Because butalbital can be habit-forming, extended or repeated use is not recommended.
Other Drugs & Mountain Flax
Browse every other medication we’ve checked against Mountain Flax — 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 Mountain Flax against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Metoprolol ›
- Aspirin ›
- Ivermectin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Escitalopram ›
- Tadalafil ›
- Acetaminophen ›
- Clopidogrel ›
- Atorvastatin ›
- Valacyclovir ›
- Docusate ›
- Hydroxyurea ›
- Abemaciclib ›
- Ibuprofen ›
- Methamphetamine ›
- Semaglutide ›
- Sumatriptan ›
- Tirzepatide ›
- Warfarin Sodium ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Bupropion ›
- Metformin ›
- Acyclovir ›
- Amoxicillin ›
- Lisinopril ›
- Bendamustine ›
- Amitriptyline ›
- Doxycycline ›
- Lamotrigine ›
- Methotrexate ›
- Fluoxetine ›
- Gabapentin ›
- Pregabalin ›
- Amphetamine ›
- Acetaminophen, Codeine ›
- Isotretinoin ›
- Azithromycin ›
- Dextroamphetamine ›
- Clonazepam ›
- Omeprazole ›
- Quetiapine ›
- Methylene Blue ›
- Amlodipine Besylate ›
- Duloxetine ›
- Letrozole ›
- Buspirone ›
- Citalopram ›
- Ciprofloxacin ›
- Naproxen ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Mountain Flax list.
Mountain Flax References
The 1 references that drive our Mountain Flax 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.
- Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 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 Mountain Flax and Propoxyphene Together: Common Questions
Is it safe to take Mountain Flax with Propoxyphene?
Do Mountain Flax and Propoxyphene have any of the same side effects?
Does Propoxyphene interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Propoxyphene and Mountain Flax?
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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.