Valium is a medication used to manage anxiety, muscle spasms, and seizures. Its active ingredient is diazepam, a type of benzodiazepine that helps calm the nervous system by enhancing the effects of the neurotransmitter GABA. Valium is typically prescribed for short-term use due to its potential for addiction and withdrawal. It is available in tablet form and can be taken with or without food. Common side effects include drowsiness, dizziness, and weakness.