Drug interactions
Olmesartan + Reishi
Severity: Minor
Olmesartan and Reishi: 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 has been reported to lower blood pressure in some preparations. It may add to the effect of olmesartan, although supporting data are limited.
What this interaction means in plain words
Olmesartan and Reishi 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 hypotensive effect; the mechanism is not well established.
What to do
Monitor blood pressure if reishi is taken regularly with olmesartan. Adjust antihypertensive dosing only if hypotension occurs.
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 Olmesartan
- Aliskiren + Olmesartan Contraindicated
- Olmesartan + Sparsentan Contraindicated
- Aldesleukin + Olmesartan Major
- Amifostine + Olmesartan Major
- Amiloride + Olmesartan Major
- Amlodipine-benazepril + Olmesartan Major
Frequently asked questions
Can I take Olmesartan with Reishi?
MediHelp rates the interaction as minor. Olmesartan and Reishi 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 has been reported to lower blood pressure in some preparations. It may add to the effect of olmesartan, although supporting data are limited.
How serious is the interaction between Olmesartan and Reishi?
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 if reishi is taken regularly with olmesartan. Adjust antihypertensive dosing only if hypotension occurs.
What other medicines interact with Olmesartan?
MediHelp also lists interactions of Olmesartan with, for example, Aliskiren, Sparsentan, Aldesleukin. The full list is on the Olmesartan page.
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