51 Uncommon side effects which may affect more than 1 person in a 1000, are listed below − Heart failure, palpitations (awareness of heart beat), fast heart rate − Worsening of existing high blood pressure − Abnormalities in liver-related blood tests − Abnormalities in kidney-related blood tests − Anaemia (changes in red blood cells that can cause fatigue and breathlessness) − Anxiety, depression, tiredness, drowsiness, tingling sensations (pins and needles) − High levels of potassium in blood test results (can cause nausea (feeling sick), fatigue, muscle weakness or palpitations) − Impaired or blurred vision, ringing in the ears, mouth pain and sores − Constipation, burping, stomach inflammation (indigestion, stomach ache or vomiting), worsening of inflammation of the stomach or intestine. − Leg cramps − Raised itchy rash (hives)