Final answer:
Diazepam is the medication among the listed options that should be classified as an anti-anxiety agent; it belongs to the benzodiazepine class and is effective in reducing anxiety symptoms.
Step-by-step explanation:
The medication that should be classified as an anti-anxiety agent is diazepam.
Diazepam is part of the benzodiazepine class, which includes medications like Alprazolam (Xanax), Lorazepam (Ativan), and Temazepam. These are all known for their sedative, hypnotic, muscle relaxing, and anti-convulsant properties, primarily used to treat anxiety disorders. Benzodiazepines work by enhancing the effect of the neurotransmitter GABA, which results in a calming effect on the brain and body, helping to reduce symptoms of anxiety. As it is a central nervous system depressant, diazepam effectively manages anxiety symptoms and can be used for panic disorders and other anxiety-related conditions.
Unlike Lisinopril, which is an antihypertensive medication, Tetracycline, an antibiotic, and Carbamazepine, an anticonvulsant and mood stabilizing drug, Diazepam is used specifically to address anxiety.