Allergic reactions, including anaphylaxis, angioedema, dyspnoea, rash, urticaria, pruritus; erythema; electrolyte disturbances, particularly hyperkalaemia & hypokalaemia; headache; abdominal pain, diarrhoea, vomiting, nausea, dyspepsia, abdominal distention, borborygmi, flatulence, anorectal discomfort; peripheral oedema.