depression, loss of muscle, lack of restraint, muscle spasms, compulsive behaviour, problems with coordination, increased muscle activity, mental confusion, delusion, memory loss, lack of concentration, amnesia, apathy, delirium, difficulty thinking and understanding, irritability, paranoia, mood swings, slowness in activity, hallucination, anxiety, involuntary movements, weight loss, fidgeting, difficulty speaking, abnormality walking, tremor