Psychiatric Medication Genetic Testing
Psychiatric medication genetic testing (also called pharmacogenomic testing) is a tool that helps your provider understand how your body may respond to certain mental health medications.
The test looks at specific genes that affect how medications are processed and metabolized in your body.
This information can help guide more personalized treatment decisions.
HARMONY Psychiatric Services
Psychiatric-Mental Health Nurse Practition
Katie Stanford
What Is Psychiatric Medication Genetic Testing?
How Genetic Testing Works
Genetic testing is typically done using a simple cheek swab or saliva sample. The sample is sent to a specialized laboratory that analyzes genes related to how your body breaks down and responds to psychiatric medications, such as antidepressants, mood stabilizers, and antipsychotics.
The results do not diagnose a mental health condition. Instead, they provide insight into which medications may be more likely to:
Cause side effects
Require dose adjustments
What to Expect During Testing
The test is quick and painless
It is usually completed during an office visit
No blood draw or fasting is required
Results are typically available within 1–2 weeks
Your provider will review the results with you and explain how they may apply to your treatment
How Genetic Testing May Help
Genetic testing may help:
Reduce trial-and-error when starting medications
Identify medications that your body may process too quickly or too slowly
Lower the risk of unwanted side effects
Support more informed, individualized medication choices
It is one piece of information used alongside your symptoms, history, and preferences.
Safety, Privacy, and Limitations
Your genetic information is handled with strict privacy protections
The test does not reveal information about disease risk or ancestry
Results guide medication selection but do not guarantee a specific response
Clinical judgment and ongoing monitoring remain essential parts of care
Who May Benefit from Genetic Testing?
Genetic testing may be helpful if:
You have tried multiple psychiatric medications with limited benefit
You have experienced significant medication side effects
You want a more personalized approach to medication management
You are beginning long-term psychiatric treatment
Your provider can help determine whether genetic testing is appropriate for you.