Common side effects These may affect up to 1 in 10 people: • chest pain (angina) • broken bones • reduction in blood count (anaemia) • small increases in blood cholesterol, increased amount of fats in the blood • increased weight, increased appetite • dizziness • constipation • lower blood sugar than normal (hypoglycaemia) • swelling (oedema) due to water retention • metallic taste in the mouth.