Nausea, dry mouth, dizziness, trouble sleeping, sweating, headache, drowsiness. Heart palpitations, tinnitus, vertigo, mydriasis, blurred vision, vomiting, diarrhea, weakness, chills, feeling jittery, irritability, decreased/increased wt, increased BP, musculoskeletal stiffness, shaking, disturbance in attention, tingling sensations, taste changes, anorgasmia, anxiety, nervousness, decreased libido, abnormal dreams, delayed ejaculation (in men), erectile dysfunction (in men), yawning, rash, hot flush, decreased appetite, constipation, tiredness, drug w/drawal syndrome, abnormal LFTs.