Anxiety is also known as trazodone hydrochloride tablets, this drug is mainly used for the treatment of mental, neurological diseases, with antidepressant, anti-anxiety effect, the main active ingredient is trazodone. Trazodone belongs to triazolopyridine antidepressants, the mechanism of antidepressant of this drug has not been fully elucidated. According to the current study, it is mainly selective inhibition of 5-hydroxytryptamine reabsorption, and has the effect of weakly blocking the reabsorption of norepinephrine. Because 5-hydroxytryptamine and norepinephrine, for the body’s mood need to have a close correlation, trazodone is through the action of this pathway, so as to improve the patient’s mood. In clinical practice, Trazodone hydrochloride can be used to treat various types of depression and anxiety disorders associated with depression, as well as mood disorders after withdrawal in drug-dependent people. In conclusion, Trazodone Hydrochloride tablets are mainly known to improve mood.