Our review confirms the usefulness of long-term pharmacological treatments for PD and GAD and suggests that they can provide further improvement over that obtained during short-term therapy .
Paroxetine , escitalopram , and clonazepam can be effective for long-term treatment of PD .
Pregabalin and quetiapine can be effective for long-term treatment of GAD , while preliminary suggestions emerged for agomelatine and vortioxetine .
We did not find any evidence for determining the optimal length and /or dosage of medications to minimize the relapse risk .
Many aspects of long-term pharmacological treatments for  anxiety disorders ( AnxDs ) are still debated .
We undertook an up date d systematic review of long-term pharmacological studies on panic disorder ( PD ) , generalized anxiety disorder ( GAD ) , and social anxiety disorder ( SAD ) .
The diagnosis and treatment of generalized anxiety disorder.
BACKGROUND Generalized anxiety disorder  ( GAD ) is a common and serious disease with a lifetime prevalence of 4.3 % to 5.9 % . It is underdiagnosed in primary care . METHODS Recommendations on the treatment of GAD are given on the basis of all available findings from pertinent r and omized trials , retrieved by a selective search of the literature . RESULTS Among psychotherapeutic techniques , various kinds of cognitive behavioral therapy ( CBT ) have been found useful in controlled trials . The drugs of first choice include selective serotonin reuptake inhibitors ( SSRIs ) , serotonin-norepinephine reuptake inhibitors ( SNRIs ) , and the calcium-channel modulator pregabalin . Tricyclic antidepressants are also effective but have more adverse effects than SSRIs . Although benzodiazepines are effective anxiolytic agents for short-term use , they should not be given over the long term because of the danger of addiction . Buspirone , an azapirone , was found to be effective in a small number of trials , but the findings across trials are inconsistent . The response rate of GAD to CBT in published studies lies between 47 % and 75 % , while its response rate to drug treatment lies between 44 % and 81 % . CONCLUSION The treatment of GAD with CBT and drugs is evidence -based and has a good chance of improving the manifestations of the disorder
Our review confirms the usefulness of long-term pharmacological treatments for PD and GAD and suggests that they can provide further improvement over that obtained during short-term therapy .
Paroxetine , escitalopram , and clonazepam can be effective for long-term treatment of PD .
Pregabalin and quetiapine can be effective for long-term treatment of GAD , while preliminary suggestions emerged for agomelatine and vortioxetine .
We did not find any evidence for determining the optimal length and /or dosage of medications to minimize the relapse risk .
Many aspects of long-term pharmacological treatments for  anxiety disorders ( AnxDs ) are still debated .
We undertook an up date d systematic review of long-term pharmacological studies on panic disorder ( PD ) , generalized anxiety disorder ( GAD ) , and social anxiety disorder ( SAD ) .