Drug interactions
Reishi + Timolol
Severity: Minor
Reishi and Timolol: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Reishi mushroom may have blood pressure lowering activity, so it could add to the hypotensive and bradycardic effect of timolol. The effect is theoretical and clinical data are scant.
What this interaction means in plain words
Reishi and Timolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Possible additive blood pressure lowering effect (pharmacodynamic); not well established.
What to do
Monitor blood pressure and heart rate if the patient starts taking reishi supplements while on timolol.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Timolol
- Acebutolol + Timolol Major
- Albuterol + Timolol Major
- Aldesleukin + Timolol Major
- Amifostine + Timolol Major
- Amiodarone + Timolol Major
- Arformoterol + Timolol Major
Frequently asked questions
Can I take Reishi with Timolol?
MediHelp rates the interaction as minor. Reishi and Timolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Reishi mushroom may have blood pressure lowering activity, so it could add to the hypotensive and bradycardic effect of timolol. The effect is theoretical and clinical data are scant.
How serious is the interaction between Reishi and Timolol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and heart rate if the patient starts taking reishi supplements while on timolol.
What other medicines interact with Timolol?
MediHelp also lists interactions of Timolol with, for example, Acebutolol, Albuterol, Aldesleukin. The full list is on the Timolol page.
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