Answer
It can increase blood volume and pressure by retaining sodium and water. Excessive effects can cause hypertension, swelling or heart failure.
Sources for this answer
- Fludrocortisone Acetate 0.1 mg Tablets — 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.