When you dream of your brother using drugs, it often represents hidden fears or concerns about his well-being. This dream can symbolize anxiety over a loved one’s potential for self-destructive behavior, addiction, or harmful habits. In Hinduism, the use of drugs in a dream can point to emotional or psychological imbalances that need addressing. Such a dream could also reflect the dreamer’s own fear of losing control or inability to intervene in a loved one’s life. If your brother is struggling with real-life issues or you have concerns for his health, this dream might reflect those emotions.