```xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns4:query_definition xmlns:ns2="http://www.i2b2.org/xsd/cell/crc/psm/1.1/" xmlns:ns4="http://www.i2b2.org/xsd/cell/crc/psm/querydefinition/1.1/" xmlns:ns3="http://www.i2b2.org/xsd/cell/crc/psm/analysisdefinition/1.1/">
    <query_name>Psychotherapeut@03:08:27</query_name>
    <query_timing>ANY</query_timing>
    <specificity_scale>0</specificity_scale>
    <panel>
        <panel_number>1</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>2</hlevel>
            <item_name>Psychotherapeutic agents</item_name>
            <item_key>\\i2b2_MEDS\i2b2\Medications\MUL\(LME203) psychotherapeutic agents\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>medications \ psychotherapeutic agents</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all patients who have ever been prescribed psychotherapeutic agents, such as medications used for treating mental health disorders, at any point in their medical history. This query is designed to return results with a high level of specificity (1000%) and is not restricted to a specific time frame (ANY timing). The query is looking for the concept "Psychotherapeutic agents" within the "Medications" category in the i2b2 ontology.