Medication interaction hub

What Supplements Interact with Nadolol?

Nadolol brand names: Corgard, Nadolol. Every interaction below applies to the brands too.

145 Interactions 6 Major 119 Moderate 20 Minor
Curated & coded by · Clinical Pharmacist · Updated September 22, 2026

Drug–supplement interaction data sourced from Natural Medicines Pro, the licensed clinical database from TRC Healthcare / Therapeutic Research, with additional analysis by the HelloPharmacist Pharmacist Team. Our sources · Editorial policy

What is this page for?

One answer, for one medication: what supplements and herbal products interact with Nadolol? Every vitamin, herb, and supplement ingredient we’ve checked against it is on this page, ranked by severity, each linking to the full report for that exact pair.

This page covers supplement interactions only — to check Nadolol against your other medications, use the drug–drug interaction checker. Educational information from our licensed clinical databases, not medical advice. Our editorial policy

HelloPharmacist Bottom Line
Our Pharmacist Explains
What is this? The interaction data in the HelloPharmacist supplement database is licensed from Natural Medicines Pro by TRC Healthcare (Therapeutic Research). HelloPharmacist pharmacists often add our own analysis and context on top of that licensed data — such as this Bottom Line summary and the notes on individual interaction pages — and any such commentary is noted as ours.

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. It is one of six major-rated interactions among the 145 supplements and herbs on file.

Most of the other 139 entries, 119 rated moderate and 20 minor, come down to blood pressure. Fish oil and many similar ingredients lower it on their own, and stacked with nadolol that can mean dizziness or fainting, while a handful push pressure up and work against the drug. A smaller set, activated charcoal among them, can block nadolol from absorbing, so keep those well separated from your dose. If green tea is part of your day, that is the first thing to raise with your pharmacist.

— , Clinical Pharmacist · July 18, 2026

Major 6 Moderate 119 Minor 20 No known interaction 1,307

This box checks one ingredient at a time (like turmeric or magnesium). Taking a supplement product with a whole label of ingredients? Search the product instead — we check every ingredient on it ↓

Most Viewed Ingredient Interactions

Nadolol: Top Interactions at a Glance

The Nadolol supplement & herbal interactions people checked most in the last 24 hours, colored by severity. Tap any ingredient to open the full report for that pair.

Showing the 12 highest-ranked of 145 interacting ingredients — plus 1,307 more checked with no known interaction. See the complete ranked list.

Start here

The Most-Checked Nadolol Combinations Today

The Nadolol + supplement pages people viewed most in the last 24 hours (resets at midnight). Open any card for the full report.

Major Likelihood Likely Green Tea + Nadololi

Green tea seems to reduce the levels and clinical effects of nadolol.

Read the full interaction Moderate Likelihood Probable Apple + Nadololi

Consuming apple juice with antihypertensive drugs might interfere with blood pressure control.

Read the full interaction Moderate Likelihood Possible Vitamin B6 + Nadololi

Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.

Read the full interaction Moderate Likelihood Possible Niacin + Nadololi

Theoretically, niacin may increase the risk of hypotension when used with antihypertensive drugs.

Read the full interaction Moderate Likelihood Possible Conjugated Linoleic Acid (cla) + Nadololi

Theoretically, taking CLA with antihypertensive drugs might increase the risk of hypotension.

Read the full interaction Moderate Likelihood Possible Royal Jelly + Nadololi

Theoretically, royal jelly might increase the risk of hypotension when taken with antihypertensive drugs.

Read the full interaction
The complete list

Every Supplement Checked Against Nadolol

All 1,452 ingredients in our database, ranked by severity — 145 with a Nadolol interaction on file and 1,307 with none found. Filter by severity or search any ingredient; hover the for what each ingredient is.

Looking for an interaction with a specific supplement product? Search products instead ↓

Straight answers

Can You Take It With Nadolol?

One-line answers, one card per combination — scroll through today’s 20 and tap any card for the full report. A different set rotates in daily until every combination has had its turn.

Can you take Green Tea with Nadolol?

Major Use real caution — this is a major-rated interaction, generally best avoided or used only under close supervision. Green tea seems to reduce the levels and clinical effects of nadolol.

Full Green Tea + Nadolol answer

Can you take Apple with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Consuming apple juice with antihypertensive drugs might interfere with blood pressure control.

Full Apple + Nadolol answer

Can you take Vitamin B6 with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.

Full Vitamin B6 + Nadolol answer

Can you take Niacin with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, niacin may increase the risk of hypotension when used with antihypertensive drugs.

Full Niacin + Nadolol answer

Can you take Conjugated Linoleic Acid (cla) with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking CLA with antihypertensive drugs might increase the risk of hypotension.

Full Conjugated Linoleic Acid (cla) + Nadolol answer

Can you take Baikal Skullcap with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of Baikal skullcap with antihypertensive drugs might have additive effects and increase the risk of hypotensi...

Full Baikal Skullcap + Nadolol answer

Can you take Basil with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, basil might increase the risk of hypotension when taken with antihypertensive drugs.

Full Basil + Nadolol answer

Can you take Berberine with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, berberine might have additive effects with antihypertensive drugs.

Full Berberine + Nadolol answer

Can you take Beta-glucans with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking beta-glucans with antihypertensive drugs might increase the risk of hypotension.

Full Beta-glucans + Nadolol answer

Can you take Betony with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, betony might have additive effects with blood pressure lowering drugs due to hypotensive activity of the glycosides found in...

Full Betony + Nadolol answer

Can you take Biofeedback with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. There is some concern that electroencephalogram (EEG) biofeedback might lower the seizure threshold in some patients.

Full Biofeedback + Nadolol answer

Can you take Black Seed with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking black seed with antihypertensive drugs might increase the risk of hypotension.

Full Black Seed + Nadolol answer

Can you take Blue Cohosh with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Constituents in blue cohosh might increase blood pressure by causing coronary vasoconstriction.

Full Blue Cohosh + Nadolol answer

Can you take Breadfruit with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use with antihypertensive drugs might increase the risk of hypotension.

Full Breadfruit + Nadolol answer

Can you take Bridelia with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Animal research suggests that Bridelia extracts decrease arterial pressure.

Full Bridelia + Nadolol answer

Can you take Calamus with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking calamus with other antihypertensive medications might increase the risk of hypotension.

Full Calamus + Nadolol answer

Can you take Cannabigerol (cbg) with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking cannabigerol with antihypertensive drugs might increase the risk of hypotension.

Full Cannabigerol (cbg) + Nadolol answer

Can you take Caprylic Acid with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, caprylic acid might increase the risk of hypotension when used with antihypertensive drugs.

Full Caprylic Acid + Nadolol answer

Can you take Catechu with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use with antihypertensive drugs might increase the risk of hypotension.

Full Catechu + Nadolol answer

Can you take Ceylon Cinnamon with Nadolol?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.

Full Ceylon Cinnamon + Nadolol answer
Read the list like a pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • Possible. Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each entry links to a full report with the clinical detail, likelihood, evidence level, and citations for that exact combination.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

How Does Our Interaction Checker Work?

Behind every verdict on this page is a category system. Our source database doesn’t document supplement interactions drug-by-drug — it documents them against groups of medications that behave the same way (for example, “drugs processed by the CYP3A4 liver enzyme” or “blood-thinning medications”).

So the check works in three steps: (1) Nadolol is classified into the pharmacology categories it belongs to, (2) every supplement interaction documented against any of those categories is inherited by Nadolol, and (3) each ingredient keeps its own severity, likelihood, and evidence grades from the underlying record. That’s why one supplement can carry several records for one drug — it may interact through more than one category.

Nadolol sits in 5 interaction categories. Open any one to see what the group means:

Antihypertensive Drugs 119 ingredients

Blood-pressure-lowering medications. Supplements that lower (or raise) blood pressure can amplify or fight these drugs.

119 of the supplement ingredients on this page reach Nadolol through this category.

Oral Drugs 17 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

17 of the supplement ingredients on this page reach Nadolol through this category.

Seizure Threshold Lowering Drugs 6 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

6 of the supplement ingredients on this page reach Nadolol through this category.

Beta-Blockers 5 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

5 of the supplement ingredients on this page reach Nadolol through this category.

Nadolol (Corgard) 2 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

2 of the supplement ingredients on this page reach Nadolol through this category.

About Nadolol

Nadolol is a beta-blocker used to treat high blood pressure and angina pectoris (chest pain from the heart).

Generic name: Nadolol  ·  Brand names: Corgard, Nadolol.

See the full Nadolol drug information

Related: does Nadolol deplete any nutrients?

Nadolol has 4 reported nutrient associations in the research literature — see the Nadolol nutrient depletion report.

Check a real product

Take a Supplement Product? Check the Whole Bottle Against Nadolol

Most supplements are combination products — and the interaction may come from an ingredient you didn’t buy it for. Search any product below (or scan its label) and we’ll check every ingredient on it against Nadolol.

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Pharmacist Counseling Corner

Nadolol & Supplements: Common Questions

What supplements interact with Nadolol?
In our interaction database, 145 supplement and herbal ingredients have an interaction with Nadolol on file — 6 rated major, 119 moderate, and 20 minor. That number sounds scarier than it is: severity matters far more than the count, which is why the list on this page is ranked instead of alphabetical. Start at the top. The highest-ranked right now: American Hellebore, Green Tea, Tyramine.
Which Nadolol supplement interactions are the most serious?
The 6 major-rated combinations — led by American Hellebore, Green Tea, Tyramine, Activated Charcoal and American Mistletoe — deserve real caution: these are the ones generally best avoided, or used only with your prescriber watching. If you take any of them today, don't panic and don't stop anything abruptly — call your pharmacist first. Jump to the ranked list.
Can I take vitamins or supplements while on Nadolol?
That depends entirely on which supplement. The honest answer for Nadolol is in the ranked list above — and if what you take is a combination product with a dozen ingredients, don't check them one by one: photograph the label with our scanner and we'll check the whole thing at once. Try the label scanner or the interaction checker.
Do brands like Corgard have the same supplement interactions as Nadolol?
Yes — Corgard, Nadolol all contain Nadolol, so everything on this page applies to them equally. Interactions belong to the active drug, never to the brand on the box; the same is true of generics.
Where do these interaction ratings come from?
Every rating comes from the Natural Medicines database — the same evidence-graded reference pharmacists and hospitals use — and each interaction carries three separate grades: severity (how bad it can be), likelihood (how well it's documented in studies and case reports), and an evidence level. Our pharmacists review the content; we never let an AI decide an interaction. See how to read the ratings and our editorial policy.
Does Nadolol deplete any vitamins or nutrients?
It might — Nadolol has 4 reported nutrient-depletion associations in the research literature, which is a different question from interactions: instead of a supplement changing the drug, the drug may lower a nutrient over time. See the Nadolol nutrient depletion report for the specifics and what to discuss with your pharmacist.
What about Nadolol and my other medications?
This page covers Nadolol against supplements and herbal ingredients. Checking Nadolol against your other prescription or OTC medications is a different tool — our drug interaction checker covers that side. Head to the drug–drug interaction checker, or read the full Nadolol drug information.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Sourcing

Where This Data Comes From — and Why You Can Trust It

🧪 Licensed clinical database

Every interaction verdict on this page comes from Natural Medicines Pro (TRC Healthcare / Therapeutic Research) — the same evidence-graded reference used by pharmacists and hospitals. We license this data directly; we do not scrape it, and no AI invents an interaction.

🧑‍⚕️ Pharmacist review

This page is curated and coded by , Clinical Pharmacist, with additional analysis by the HelloPharmacist Pharmacist Team. Editorial commentary is ours; the licensed interaction records are shown as sourced.

🔄 Kept current

Our interaction database refreshes on a weekly cycle, and this page re-checks the live database every time it’s rebuilt — what you see reflects the database as of September 22, 2026.

🔍 Full transparency

How every dataset on this site is sourced, licensed, and updated is documented publicly: our data sources · editorial policy · how we use AI.

Educational information, not medical advice. An interaction being on file does not mean it will happen to you — and absence of one is not proof of safety. Never start or stop a medication or supplement without talking to your pharmacist or doctor.