Which served to calm or quiet nervous excitement and sometimes induced sleep.

Were developed to calm or tranquilize individuals without making them too sedated to perform activities of daily living.

Generally are used for symptomatic managements of more severe psychiatric disorders.

Is any agent used to counteract depression.Work indirectly by increasing or decreasing the levels of certain naturally occurring brain hormones,2 to 3 weeks may be needed to see effect.

Specific and potent inhibition of serotonin reuptake on the presynaptic neuron,which increases serotonin availability at the synapse.This effect causes increased concentration of serotonin in the central nervous system, and this is believed to be responsible for antidepressant effect.Due to an increased supply of intrinsic,or naturally occurring,brain hormone.

Gastrointestinal disturbances,particularly at the beginning of treatment; headache;sexual dysfunction;and anorexia.

Inhibit monoamine oxidase,naturally occurring hormone that is involved in the breakdown of several neurotransmitters in the brain,including epinephrine, dopamine,and serotonin.May not be taken with foods that are high in amines such as cheeses,chicken liver,avocados,pickled herring,figs,and alcoholic beverages.

Are composed of two aromatic hydrocarbon rings connected by seven-member ring.

Relieve anxiety and are used primarily for disorders caused by anxiety.These agents are generally less sedating than tranquilizers and lend themselves to more long-term treatment with fewer side effects.