Valium (diazepam) is a commonly prescribed medication for anxiety, insomnia, and muscle relaxation. One question many people have is how long it stays in the system, as this affects how quickly symptoms improve, as well as considerations for drug testing and ongoing treatment. https://www.reddit.com/user/imran_khan_India/comments/1nqv53g/how_long_does_valium_stay_in_your_system/