Answer
Check with a pharmacist or prescriber first. NSAIDs such as ibuprofen can weaken its blood-pressure effect and increase kidney-injury risk, especially during dehydration.
Sources for this answer
- Olmesartan 40 mg Film-Coated Tablets — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.