Rapid heartbeat, mental confusion, hallucinations, agitation, nightmares, depression; photophobia; tendon rupture; headache, dizziness, insomnia, chills, fever; back pain, abdominal pain; constipation, nausea, vomiting, diarrhoea, inflammation of the tongue, mouth sores; abnormal vision, ringing in the ears, vaginitis.
Potentially Fatal: Hyperosmolar nonketotic hyperglycaemic coma, diabetic ketoacidosis, hypoglycaemic coma, convulsions and mental status changes.