Which of the following medications is commonly associated with treating anxiety?

Valium, known generically as diazepam, is commonly used to treat anxiety disorders and is classified as a benzodiazepine. It works by enhancing the effects of a neurotransmitter in the brain called gamma-aminobutyric acid (GABA), which helps to produce a calming effect on the nervous system. Valium is effective in relieving anxiety symptoms and is often prescribed for short-term relief of anxiety or agitation.

Other medications listed are associated with different therapeutic uses. Flexeril (cyclobenzaprine) is primarily a muscle relaxant used for muscle spasms, Zanaflex (tizanidine) is an alpha-2 adrenergic agonist also used for muscle spasticity, and Celebrex (celecoxib) is a nonsteroidal anti-inflammatory drug (NSAID) used to alleviate pain and inflammation. Thus, while these medications serve important roles in managing various conditions, only Valium is specifically indicated for anxiety treatment.