The short answer
An exact Salix alba interaction with nadolol has not been established. Check the bark product and kidney history before use; willow should not be treated as chemically identical to aspirin.
What this answer covers
Oral nadolol with the exact supplement preparation described below.
- Supplement or preparation
- Salix alba
- Medication ingredient
- nadolol
The exact willow material matters
The medicinal bark monograph covers defined Salix materials and salicylate-related precautions. Salix alba is not specifically named among its principal species, so the product’s identity must be checked before applying those details.
Kidney health is relevant to the review
Covered willow medicines have renal precautions, while nadolol is mainly cleared through the kidneys. That provides a reason to examine kidney function and other medicines, not proof this exact pair causes kidney injury.
Do not substitute aspirin evidence automatically
Willow products vary in constituents and exposure. The reviewed sources did not establish a nadolol-specific clinical interaction, safe dose or protective interval for white willow.
Keep the prescribed treatment plan
Do not stop nadolol abruptly or adjust the dose to compensate for a supplement. Bring the product label and your recent blood-pressure and pulse readings to your pharmacist or prescriber so any change can be assessed in context.
Evidence and practical considerations
Side effects & toxicity
An exact Salix alba interaction with nadolol has not been established. Check the bark product and kidney history before use; willow should not be treated as chemically identical to aspirin.
- Exact scope
- Oral nadolol with the exact supplement preparation described below. with Oral nadolol; intravenous cases are identified as indirect route evidence where discussed.
- Medication form and route
- oral
What remains uncertain
- Salix monograph is not exact S.alba/nadolol clinical evidence. Renal and salicylate precautions support review without a measured harm rate or all-willow equivalence.
Factors that may matter: Exact ingredient and preparation; Kidney function and clinical indication; Concomitant medicines.
Read the supporting source summaries
Source 1: Current U.S. regulatory product labeling
dailymed.nlm.nih.gov · Source check Sep 10, 2026
Population: Patients prescribed oral nadolol.
Nadolol is not metabolized by the liver and is mainly cleared unchanged by the kidneys. Kidney function affects dosing. Bradycardia and abrupt-withdrawal precautions apply.
How this applies: Exact active-ingredient and oral-route context.
Label omission of an herb does not prove safety. No invented exact supplement interaction rate or universal spacing rule.
Source 2: Regulatory herbal monograph
ema.europa.eu · Source check Sep 10, 2026
Population: People considering covered medicinal willow-bark preparations.
Lists severe renal dysfunction, ulcers and salicylate hypersensitivity among contraindications for covered preparations.
How this applies: Supports verifying the product and kidney context without treating willow as identical to aspirin.
Salix alba is not specifically named among the principal species. No exact nadolol co-use or clinical renal/bleeding event rate.
Research assessment: · Open full citations ↗
Review and change history
- Publication status
- Published research summary
- Clinical review
- Not yet recorded
| Date | Update |
|---|---|
| Article prepared | |
| Initial source-checked research draft with exact preparation limits, contrary findings and source-access details. Clinical review not recorded. | |
| Research summary published |
Article revision: b1f0f6f1d0c604de
This guide brings together the evidence records used by our interaction checker. Each finding retains its own preparation limits, research date, and source summaries.
Full citations require verification. Reading this answer and the source summaries does not.
Taking other supplements or medications?
Use the checker to explore your other combinations. Ask a pharmacist to review the exact products, amounts and medical conditions in your complete list.
Open the interaction checkerInformation, not medical advice. Do not change prescribed treatment based on this guide.