Black Alder + Psyllium (OTC drug)
Psyllium (OTC drug) brand name: Metamucil.
We found no known interaction between Black Alder and Psyllium (OTC drug) 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.
Black Alder and Psyllium (OTC drug)
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 Psyllium (OTC drug) and Black Alder 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.
Black Alder safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Why No Interaction Is Listed for Psyllium (OTC drug)
Interactions in our licensed database are recorded against drug classes, not just single drug names. Psyllium (OTC drug) is filed under a single classification — oral drugs. Black Alder has documented interactions with 2 drug classes — the most serious being cisplatin (platinol-aq) (moderate) and doxorubicin (adriamycin, others) (moderate) — and none of Psyllium (OTC drug)’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.
Black Alder Does Interact With Other Medications
Black Alder has 2 moderate known drug interactions in our database — Psyllium (OTC drug) isn’t one of them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Black Alder
We haven’t checked that one against Black Alder yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Black Alder. Pick one to open its full report.
Questions About Black Alder or Psyllium (OTC drug)
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Black Alder or Psyllium (OTC drug), not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:
- Does Taking Metamucil Before Meals Prevent Hard Stools? ›
- Potassium, Fiber Interaction And Gallbladder Removal Concerns ›
- Can You Use Metamucil For IBS With Diarrhea? ›
Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.
See Every Supplement That Interacts With Psyllium (OTC drug)
This page covers Black Alder only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Psyllium (OTC drug) page lists 17 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 · 7 moderate · 9 minor.
From our pharmacist’s overview on the Psyllium (OTC drug) page
“Activated charcoal tops the psyllium (Metamucil) list and is the one entry rated major. Charcoal binds many medicines in the gut and can cut how much of them reaches the body, so pairing it with anything you take by mouth deserves real caution, and I would read that entry before the rest.”
Reviewed by 2 · Jul 18, 2026
Taking Black Alder as Part of a Dietary Supplement Product? Check It for Interactions
We hold 21 real supplement products containing Black Alder, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Black Alder. Even though Black Alder itself has no known interaction with Psyllium (OTC drug), another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Black Alder and Psyllium (OTC drug) 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.
#384 of 1,452 supplements looked up here in the last 7 days
#964 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 Black Alder reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Black Alder and Psyllium (OTC drug) 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 Black Alder
What is Black Alder?
- Sore throat and mouth inflammation
- Skin wounds and irritation (topical)
- Fever and general aches (traditional)
- Digestive complaints
- Astringent for minor bleeding
Black Alder is a European tree whose bark and leaves have a long history in folk medicine, mainly as an astringent gargle or wound wash. There is very little modern human research to confirm any of these uses, and it can cause stomach upset, so it should be used cautiously and avoided during pregnancy and breastfeeding.
Alnus glutinosa · Betulaceae · Bark, leaves, and sometimes the catkins · Dried bark or leaf for tea, decoctions, tinctures, and gargles or mouth rinses
An interaction check asks whether these two react with each other — it does not ask whether Black Alder is a good idea for someone in your situation. Here is what our Black Alder record says about it on its own.
Black Alder: dosing
There is no established, standardized dose for Black Alder. Traditional use involved making a tea or decoction from the dried bark or leaves, or using a diluted preparation as a gargle or skin wash.If you choose to use a product, follow the directions on the label and do not exceed the recommended amount.
From our Black Alder monograph — the full record covers uses, side effects and every documented interaction.
About Psyllium
What Is Psyllium Used For?
Brand name: Metamucil
Psyllium is used to treat occasional constipation and help restore regularity. Most products indicate that a bowel movement generally occurs within 12 to 72 hours of taking a dose.
This applies to psyllium capsule products such as Best Choice, Careone, fiber laxative, meijer fiber laxative, Premier Value Fiber, and Publix, as well as oral powder products including Best Choice Fiber Therapy, Careone, Daily Fiber, Dr. Fibra, meijer fiber therapy, and Meijer Natural Daily Fiber Sugar Free.
Other Drugs & Black Alder
Browse every other medication we’ve checked against Black Alder — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
2 interactions
No interaction 2,827 drugs checked — show the list
We also checked Black Alder 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 ›
- Ivermectin ›
- Metoprolol ›
- Rivaroxaban ›
- Aspirin ›
- Rosuvastatin ›
- Acetaminophen ›
- Escitalopram ›
- Abemaciclib ›
- Clopidogrel ›
- Tadalafil ›
- Atorvastatin ›
- Docusate ›
- Tirzepatide ›
- Valacyclovir ›
- Ibuprofen ›
- Methamphetamine ›
- Hydroxyurea ›
- Warfarin Sodium ›
- Semaglutide ›
- Sumatriptan ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Bupropion ›
- Amitriptyline ›
- Methotrexate ›
- Bendamustine ›
- Acyclovir ›
- Doxycycline ›
- Amphetamine ›
- Fluoxetine ›
- Isotretinoin ›
- Lamotrigine ›
- Pregabalin ›
- Azithromycin ›
- Acetaminophen, Codeine ›
- Gabapentin ›
- Amlodipine Besylate ›
- Dextroamphetamine ›
- Clonazepam ›
- Methylene Blue ›
- Omeprazole ›
- Quetiapine ›
- Letrozole ›
- Duloxetine ›
- Naproxen ›
- Buspirone ›
- Citalopram ›
- Ciprofloxacin ›
Showing the 60 most looked-up of 2,827 medications checked with no known interaction — see the full Black Alder list.
Black Alder References
The 1 references that drive our Black Alder 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.
- Dinic J, Novakovic M, Podolski-Renic A, et al. Antioxidative activity of diarylheptanoids from the bark of black alder (Alnus glutinosa) and their interaction with anticancer drugs. Planta Med 2014;80(13):1088-96. doi: 10.1055/s-0034-1382993. Epub 2014 Au 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.
Taking Black Alder and Psyllium (OTC drug) Together: Common Questions
Is it safe to take Black Alder with Psyllium (OTC drug)?
How was the Black Alder and Psyllium (OTC drug) combination checked?
Does Black Alder interact with any other medications?
Does Psyllium (OTC drug) interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Psyllium (OTC drug) and Black Alder?
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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.