My brother is 27 years old. He is not able to sleep properly since last few days. He is introvert by nature. But from last few days he is appearing over-talkative and saying all aggressive and negative things about people. A doctor who stays nearby wrote tolaz (2.5 mg) saying that it will correct his thought pattern. But 2 days have passed nothing as such is visible to us. He is abusing on phone as well.