Which of the following is not a commonly used sedative?

Propofol (Diprivan) is primarily classified as an anesthetic agent and is commonly used for sedation in procedural settings or for induction and maintenance of anesthesia, rather than as a routine sedative for anxiety or sleep disorders. While it does have sedative effects, its primary role is not that of a standard sedative like the other options listed.

Alprazolam (Xanax), diazepam (Valium), and lorazepam (Ativan) are all benzodiazepines, which are specifically designated for their anxiolytic (anxiety-reducing) and sedative properties. These medications are routinely used to manage anxiety and provide sedation for patients undergoing various procedures, making them a common choice in the context of sedation practices.

In summary, the distinction lies in the primary purpose and clinical application of propofol, which is more aligned with anesthesia rather than the typical sedative functions of the other medications listed.