Which medication is primarily indicated only for anxiety among the choices provided?

Buspirone is primarily indicated for the treatment of anxiety disorders. It works by affecting certain neurotransmitters in the brain, specifically serotonin and dopamine receptors, which helps to alleviate anxiety symptoms without the sedative effects typically associated with benzodiazepines.

While other options like Lorazepam, Temazepam, and Oxazepam can be used to treat anxiety, they are benzodiazepines that also have applications for insomnia, muscle relaxation, and sedation due to their broader spectrum of action. This differentiates Buspirone, as it is specifically designed for anxiety management and is often preferred in cases where a non-benzodiazepine option is desired to avoid the potential for dependence or sedation. Therefore, the distinction of Buspirone as being primarily indicated for anxiety makes it the correct choice.