My brother is suffering from OCD. He has a habit of checking the things (like door is locked or not, phone is silent or not ) repeatedly. He has a habit of washing hands again and again. He has no concentration in his studies though he used to be a topper. He says that his life is nothing. He has no interest in his life. He consulted a psychologist. Firstly he suggested him a single tablet of serlin-50. After some time, the doctor increased this dose to two tablets. Now he has suggested to take three tablets of serlin-50. My brother is just 17. Is it safe to take three tablets a day in this age. Is there any safe alternative for this disease? Any counselling or anything. Please help.