Hepatic dysfunction (discontinue). Gynaecomastia, breast tenderness, galactorrhoea. Less frequently, appetite increase, diarrhoea, insomnia, nausea, fatigue, vomiting, transient abnormal liver function, hepatitis. Rarely, anorexia, anxiety, chest pain, constipation, depression, dizziness, ecchymoses, headache, heartburn, herpes zoster, libido decline, lupus-like syndrome, lymphoedema, malaise, oedema, pruritus, stomach upset, ulcer-like pain, vision blurring, weakness, decreased sperm count.