19th
AbbyJean, you are conflating anxiety disorders with panic disorder
There are several anxiety disorders. Panic disorder is just one, and the only one characterized exclusively by panic attacks. Other anxiety disorders include:
generalized anxiety disorder
obsessive-compulsive disorder
phobias
post-traumatic stress disorder
social anxiety disorder
As you might imagine, these different disorders are treated with different medications (and therapies!), and sedatives are really only prescribed for panic attacks (which can result from most anxiety disorders, but are not necessarily the primary symptom), not for treatment of the underlying disorder. SSRIs are probably most commonly prescribed for managing anxiety disorders.
This skewing is just one of many reasons why Trainwrecks does not advocate authoritatively-toned essays based on personal knowledge.