Final answer:
Xanax is a positive allosteric regulator of the GABA receptor and helps reduce anxiety.
Step-by-step explanation:
Xanax is a positive allosteric regulator of the GABA receptor. The GABA receptor is the target of Xanax, a medication commonly used to treat anxiety disorders. By enhancing the activity of GABA, Xanax produces a calming effect on the central nervous system, helping to reduce anxiety and promote relaxation.