Laboratory test tubes and a pipette representing precision medicine, with text overlay reading "Rehab 101: How PGX Testing Is Changing Addiction Treatment."

Rehab 101: How PGX Testing Is Changing Addiction Treatment

Editorial TeamFacility News, Services, treatment

What is PGX Testing? Pharmacogenomic (PGX) testing is a type of DNA analysis that identifies how a person’s genes influence their response to medications. By analyzing specific liver enzymes (such as CYP2D6 and CYP2C19) and genetic variants, clinicians can predict which medications will be most effective and which may cause adverse side effects, allowing for a “precision medicine” approach to recovery.

Pharmacogenomic, or PGX, testing is moving addiction treatment away from a “one-size-fits-all” model toward true precision medicine. At Milestone Treatment Center, we use these insights to help our clients in New Jersey and Virginia find the right path to healing with less guesswork.

How PGX Testing Works in a Drug & Alcohol Rehab Setting

The process is non-invasive and integrated into the initial clinical assessment at our facilities:

  • Simple Collection: A clinician performs a quick cheek swab to collect a DNA sample.
  • Lab Analysis: The sample is analyzed for specific markers (like HLA-B*15:02 or SLCO1B1) that identify how your body metabolizes medications.
  • Fast Results: Reports are typically returned within 5 to 10 days, allowing for early intervention in your treatment plan.
  • Clinical Review: Our medical team reviews these results alongside your history, liver function, and kidney function (eGFR) to optimize your medication management.

Why Precision Medicine Matters for Recovery

Medication-assisted treatment (MAT) is often a cornerstone of recovery from drug and alcohol addiction. Sometimes, a patient experiences severe side effects, and they may lose trust in the process and leave treatment early. Even common, well-tolerated medications can have intolerable side effects in certain patients. This was impossible to predict until now. PGX testing helps prevent this by:

  • Reducing Trial-and-Error: Identifying the right dose or alternative medication for depression, anxiety, or pain sooner.
  • Flagging Adverse Reactions: Genetic variants are linked to nearly one-third of all adverse drug reactions, including increased risks for falls or cognitive impairment.
  • Improving Adherence: When medications work without making you feel worse, you can stay focused on your therapy and long-term sobriety.

Navigating the Cost of Care

We know that the cost of specialized testing and treatment can be a concern for families. At Milestone, we work hard to remove financial uncertainty. While we do not accept Medicare or Medicaid, we partner with most major private insurance providers to ensure our clients are covered. Our goal is to maximize your benefits so you can focus 100% on your recovery journey.

Speak with an addiction treatment expert.

We are available around the clock to help you navigate insurance and treatment options.

Call our 24/7 line: 856.754.5048

Where PGX Fits in Your Treatment Plan

PGX testing isn’t just for addiction-specific medications. It provides actionable data across several categories vital for holistic health:

  • Mental Health: Guiding treatments for co-occurring disorders like depression, anxiety, and PTSD.
  • Sleep & Pain: Finding safer options for insomnia or chronic pain management (e.g., Meloxicam or Tramadol).
  • General Health: Insights for cardiovascular, neurology, and respiratory medications.

Safety and Privacy: What You Should Know

It is important to know that the Genetic Information Nondiscrimination Act (GINA) protects you. This federal law prohibits health insurance companies and employers from discriminating against you based on genetic test results. Your data is used strictly to make your treatment safer.

What PGX Testing Cannot Do

While powerful, PGX testing is a decision-support tool, not a standalone answer. It does not account for age, weight, or complex drug-to-drug interactions. Our clinicians use these results as one piece of a larger, compassionate puzzle that includes your personal history and preferences.


Frequently Asked Questions

Is PGX testing used in addiction treatment?

Yes, it is increasingly used to personalize MAT and mental health care to improve safety and efficacy.

Does PGX testing replace a doctor’s judgment?

No. It is used alongside clinical judgment, lab tests, and patient history to make informed prescribing decisions.

How long does it take?

You can expect results in about 5 to 10 days.

Dr. Jeffrey A. Berman, MD, DFASAM
Medically Reviewed by

Dr. Jeffrey A. Berman, MD, DFASAM

Board-Certified Addiction Medicine Physician

Dr. Berman has spent more than 30 years walking alongside people in their darkest moments. He leads our team with one simple belief: every single person deserves compassion and excellent care—no judgment, no shame.