Answer
Yes. Tamsulosin can lower blood pressure, particularly on standing. Sit or lie down until symptoms pass and do not drive while affected.
Sources for this answer
- Solifenacin succinate/Tamsulosin hydrochloride 6 mg/0.4 mg Modified-release tablet — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.