Compulsive hoarding
Obsessive-compulsive disorders are treated with various serotonergic antidepressants including the tricyclic antidepressant clomipramine and various SSRI medications. With existing drug therapy, OCD symptoms can be controlled, but not cured. Several of these compounds (including paroxetine, which has an FDA indication) have been tested successfully in conjunction with OCD hoarding.
Marble burying
The test is sensitive to two major classes of drugs the Selective Serotonin (5-HT) reuptake inhibitors (SSRIs) and benzodiazepines. Benzodiazepines are commonly used to treat anxiety and SSRIs are used to treat both OCD and anxiety.