Common side effects include increase in appetite and weight gain, headaches, dizziness, nausea, constipation, dry mouth, increased sweating, shaking hands, tremor, difficulty in passing urine, problems with their eyes, feeling tired or sleepy, sexual disturbances, and restlessness.
Uncommon but serious side effects include glaucoma, hepatitis causing jaundice (yellowing of the skin or whites of the eyes), and light colored urine, urinary retention, oedema (generalized swelling), hair loss, blood disorders (which might result in persistent sore throat, fever or frequent infections, unexplained bruising or bruising more easily).