Fluid and electrolyte imbalance, nausea, diarrhoea, blurred vision, headache, dizziness, hypotension, photosensitisation, hepatic dysfunction, hyperglycaemia and glycosuria, rarely bone marrow depression, gynaecomastia, hirsutism, hoarseness, menstrual irregularities, loss of libido, impotence.
Potentially Fatal: Severe hyperkalaemia in patients with preexisting renal impairment or taking ACE inhibitors, agranulocytosis, cardiac arrhythmias.