Which benzodiazepine is used as an antianxiety medication in cats?

Benzodiazepines are a class of medications that are commonly used for their calming effects and to reduce anxiety. Among the choices, diazepam is frequently utilized in veterinary medicine, particularly for cats. It has anxiolytic properties, making it effective in treating anxiety-related disorders.

When administered to cats, diazepam can help manage anxiety by altering neurotransmitter activity in the brain, specifically modulating gamma-aminobutyric acid (GABA) receptors. This mechanism leads to a sedative effect, which can be beneficial in stressful situations, such as vet visits or changes in environment.

While other benzodiazepines like midazolam, alprazolam, and clonazepam may also have their uses, diazepam is especially recognized within veterinary practice for its application in managing anxiety in feline patients, thereby making it the correct answer to the question.