Laburnum + Nadolol
Nadolol brand names: Corgard, Nadolol.
We found no known interaction between Laburnum and Nadolol 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.
Laburnum and Nadolol
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 Nadolol and Laburnum 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 Laburnum at all — not against Nadolol, 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.
Laburnum 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.
Laburnum in Pregnancy & Breastfeeding
When used orally. All parts of the plant contain toxic alkaloids that are reported to cross the placenta and enter breast milk.
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 Nadolol
This page covers Laburnum only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Nadolol page lists 145 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Green Tea (major) and Indian Snakeroot (major).
By severity: 6 major · 119 moderate · 20 minor.
From our pharmacist’s overview on the Nadolol page
“If you take nadolol (Corgard) for blood pressure, angina, or heart rhythm, treat this list with real care, and green tea is the surprise at the top. In a clinical study, green tea cut nadolol blood levels by roughly 85 percent, which can quietly leave you undertreated.”
Reviewed by 2 · Jul 18, 2026
Taking Laburnum as Part of a Dietary Supplement Product? Check It for Interactions
We hold 11 real supplement products containing Laburnum, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Laburnum. Even though Laburnum itself has no known interaction with Nadolol, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Laburnum and Nadolol 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.
#987 of 1,452 supplements looked up here in the last 7 days
#1,682 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 Laburnum reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Laburnum and Nadolol 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 Laburnum
What is Laburnum?
- Historically explored as a smoking-cessation aid (due to cytisine content)
- Traditional folk use as a purgative or emetic
- Ornamental garden plant
- Source of the alkaloid cytisine
Laburnum is a poisonous ornamental tree, not a safe dietary supplement. All parts of the plant—especially the seeds—contain the toxic alkaloid cytisine and can cause serious poisoning. Do not eat or take any part of the Laburnum plant; consult a doctor or poison control immediately if ingestion is suspected.
Laburnum anagyroides · Fabaceae · Seeds, flowers, bark, and other plant parts (all considered toxic) · Not used as a commercial supplement; the plant is grown as an ornamental tree
An interaction check asks whether these two react with each other — it does not ask whether Laburnum is a good idea for someone in your situation. Here is what our Laburnum record says about it on its own.
Laburnum: dosing
There is no safe or established dose of Laburnum. It is not a dietary supplement, and no amount of the raw plant is considered safe to consume.Any information you may see about cytisine doses refers to purified, prescription-type products used under medical supervision in certain countries—not to the Laburnum plant. Do not attempt to make or take anything from this tree.
From our Laburnum monograph — the full record covers uses, side effects and every documented interaction.
About Nadolol
What Is Nadolol Used For?
Brand names: Corgard, Nadolol
Nadolol tablets are used for two main conditions: high blood pressure (hypertension) and angina pectoris (ongoing chest pain caused by reduced blood flow to the heart). Lowering high blood pressure reduces the risk of stroke and heart attack.
For high blood pressure, nadolol may be prescribed on its own or combined with other blood pressure medications, especially thiazide-type diuretics (water pills). For angina, it is used for long-term management to help reduce how often chest pain occurs.
Most-Reported Side Effects for Nadolol
From FAERS, the FDA’s public side-effect reporting system (7,530 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Laburnum
Browse every other medication we’ve checked against Laburnum — 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 Laburnum 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 ›
- Metoprolol ›
- Aspirin ›
- Acetaminophen ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Tadalafil ›
- Docusate ›
- Tirzepatide ›
- Ibuprofen ›
- Methamphetamine ›
- Hydroxyurea ›
- Warfarin Sodium ›
- Valacyclovir ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Lisdexamfetamine ›
- Propranolol ›
- Metformin ›
- Amitriptyline ›
- Lisinopril ›
- Amoxicillin ›
- 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 ›
- Buspirone ›
- Citalopram ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Laburnum list.
Laburnum References
The 4 references that drive our Laburnum 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.
- Bramley A, Goulding R. Laburnum "poisoning". Br Med J (Clin Res Ed). 1981;283(6301):1220-1.
- Schep LJ, Slaughter RJ, Beasley DMG. Nicotinic plant poisoning. Clin Toxicol (Phila). 2009;47(8):771-81. doi: 10.1080/15563650903252186. PubMed
- Musshoff F, Madea B. Fatal cytisine intoxication and analysis of biological samples with LC-MS/MS. Forensic Sci Int. 2009;186(1-3):e1-4. doi: 10.1016/j.forsciint.2009.01.011. 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.
Nadolol Is Linked to Lower Levels of One Nutrient
Natural Medicines records Nadolol as a medicine that can lower these. This is not an interaction with Laburnum — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Nadolol nutrient depletion report ›
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Laburnum and Nadolol Together: Common Questions
Is it safe to take Laburnum with Nadolol?
Do Laburnum and Nadolol have any of the same side effects?
Does Nadolol interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Nadolol and Laburnum?
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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.