Answer
Hydrochlorothiazide removes sodium and water but can lower potassium. Amiloride adds a potassium-sparing effect, although high potassium can still occur.
Sources for this answer
- Co-amilozide 5mg-50mg 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.