My brother is a recovering alcoholic of 7 months and was diagnosed with non-Hodgkin lymphoma 5 weeks ago. Anything that can go wrong has. He had adverse reactions to the medicines prior to chemo, chemo went not well, and now he is extremely angry, makes up stories, breaks into houses at night, goes drinking, yells and grunts at us and makes very irrational decisions. It started 1 week ago and is steadily getting worse. Could this be a psychotic break or a reaction to the new pill he started 2 weeks ago, Klonopin? I need to keep him and his family safe
Thanks for your question on Chat Doctor. I can understand your problem and condition. In his case following are the possibilities for his symptoms. 1. Alcohol with Chat Doctor.  2. Spread of non Hodgkin lymphoma in the brain and this causes similar symptoms too.3. Sever liver damage either by alcohol or by metastases and this can produce early hepatic encephalopathy.4. Any malignancy itself produce sudden psychological shock and behavioral changes. So better to admit him in hospital and discuss all these with doctor.