Diazepam is a benzodiazepine that works by enhancing certain neurotransmitters in the brain. It is commonly used to treat anxiety disorders and alcohol withdrawal symptoms. It can also be combined with other medications to treat muscle spasms, stiffness, and seizures. Diazepam helps to calm the brain and nerves, alleviating anxiety, preventing seizures, reducing alcohol withdrawal symptoms, and promoting relaxation during surgery.