Key takeaways
Lorazepam (Ativan) and diazepam (Valium) are both benzodiazepines used to treat anxiety, but they have some differences. Lorazepam is used for short-term relief of anxiety, anxiety associated with depressive symptoms, and seizures. Diazepam is used for anxiety, alcohol withdrawal symptoms, muscle spasms, and as an add-on for seizures. Lorazepam is available in both oral and injectable forms, and it can start working within 30 minutes when taken by mouth. Diazepam also comes in oral and injectable forms, but it can start working in about 15 to 30 minutes and its effects can last 12 hours or more. Both medications carry a risk of dependence and withdrawal symptoms if stopped suddenly. Lower-cost generics are available for both medications as well. Additionally, both medications can cause sleepiness and dizziness, and you should avoid alcohol while taking them.
