Peripheral edema; dizziness, somnolence, ataxia, headache, fatigue; wt gain, xerostomia; tremor; blurred vision, diplopia; infection, accidental injury. Edema, chest pain, HTN, hypotension; neuropathy, abnormal thinking, confusion, euphoria, speech disorder, attention disturbance, amnesia, incoordination, pain, insomnia, impaired memory, vertigo, hypoesthesia, abnormal feeling, anxiety, lethargy, feeling drunk, disorientation, depersonalization, fever, hypertonia, sedation, stupor, nervousness; constipation, increased appetite, nausea, flatulence, vomiting, abdominal distention, abdominal pain, gastroenteritis; balance disorder, abnormal gait, weakness, arthralgia, twitching, muscle spasm, back pain, myoclonus, increased CPK, neck pain, pain in extremity, joint swelling, paresthesia, leg cramps, myalgia, myasthenia; decubitus ulcer, facial edema, bruising, pruritus; fluid retention, hypoglycemia, decreased libido; incontinence, anorgasmia, impotence, urinary frequency; thrombocytopenia; visual abnormalities, eye disorder, conjunctivitis, nystagmus; nasopharyngitis, sinusitis, pharyngolaryngeal pain, bronchitis, dyspnea; flu-like syndrome, allergic reaction.