Social phobia is a common anxiety disorder that is underdiagnosed and
undertreated. To date, three classes of serotonin drugs have been used
to treat patients suffering from social phobia. These include the ser
otonin selective reuptake inhibitors (SSRIs), the partial 5-HT1A agoni
st buspirone, and the 5-HT3 antagonist ondansetron. Although none of t
he serotonin agents have yet been directly compared with the gold stan
dard monoamine oxidase inhibitor phenelzine or the high potency triazo
lobenzodiazepines alprazolam or clonazepam, the SSRIs, as a class, app
ear to be clinically useful agents. Further studies using larger sampl
e sizes and double-blind methodology are needed to clarify the role of
serotonin drugs in the treatment of social phobia.