Dizziness, drowsiness, headache. Increased appetite; feeling of elation, confusion, disorientation, decrease in sexual interest, irritability; disturbance in attention, clumsiness, memory impairment, loss of memory, tremor, difficulty w/ speaking, tingling feeling, numbness, sedation, lethargy, insomnia, fatigue, feeling abnormal; blurred vision, double vision; vertigo, problems w/ balance, fall; dry mouth, constipation, vomiting, flatulence, diarrhoea, nausea, swollen abdomen; difficulties w/ erection; swelling of the body including extremities; feeling drunk, abnormal style of walking; wt gain; muscle cramp, joint pain, back pain, pain in limb; sore throat.