Uncommon side effects (these can affect from 1 to 10 users in 1,000 patients treated) • Throat inflammation. • Feeling disorientated, feeling sleepy, lack of motivation. • Tasting things differently than usual, disturbance in attention, stiffness, spasms and involuntary movements of the muscles, muscle twitching, abnormal manner of walking. • Poor sleep quality • Burping, indigestion, gastroenteritis • Vertigo, ear pain. • Inflammation of the liver that may cause abdominal pain • Large pupils (the dark centre of the eye), visual disturbance. • Fast or irregular heart beat • Sexual problems, including changes in ejaculation, orgasm. • Abnormal periods, including heavy or prolonged periods. • Allergic reactions, increased tendency to bruise, blisters or sensitivity to sunlight • Increase in blood pressure, feeling cold in your fingers and/ or toes, feeling dizzy (particularly when standing up too quickly), cold sweats, shivering or fainting. • An increased level of sugar in the blood. • Need to pass more urine than normal, need to pass urine during the night, difficulty or inability to pass urine or having an urine flow decreased. • Grinding of teeth, feeling hot/ cold, thirst, throat tightness, nose bleeds. • Weight gain.