Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) such as ibuprofen or indometacin and aspirin) • Medicines for cancer (chemotherapy) • Medicines to stop the rejection of organs after a transplant such as ciclosporin • Diuretics (water tablets) such as furosemide • Medicines which can increase the amount of potassium in your blood such as spironolactone, triamterene, amiloride, potassium salts and heparin (for thinning blood) • Steroid medicines for inflammation such as prednisolone • Allopurinol (used to lower the uric acid in your blood) • Procainamide (for heart rhythm problems).