Quality you can trust
Female doctor standing with mother and daughter.

Genetic variations in a patient’s CYP 2D6, 2C19, 3A4, and 3A5 genes help explain unusual responses to the drug or inconsistent test results.

Responsiveness you expect
Dr chatting with nurse

We offer high standard services and clinical excellence  to provide timely returns of tests and easy to interpret results.

Resources you can access
professional in pharmacy

Urine drug testing can be used to monitor your patients on prescription narcotics. View our list of Prescription Drug tests.

Dr. Leland McClure

F. Leland McClure, MSci, PhD, D-ABFT

Director, Pain Management and LC-MSMS, National testing Operations

Dr. McClure is part of our scientific and medical team. He is a board certified Diplomate of the American Board of Forensic Toxicology and has more than 25 years of experience in clinical and forensic applications of laboratory testing.

We offer direct toxicologist consultation to address your questions or concerns. Call our toxicology hotline : 1-877-40-RX-TOX (877-407-9869)

discussion with panel of experts

Drug Testing in Pain Management video

Dr. Bill McCarberg leads panel members, Doctors Humam Akbik, Michael Clark, and Howard Heit, in a discussion about why urine drug testing can help protect your patients, the public, and your practice.

Quest homepage

How Prescription Drug Monitoring Can Help Identify Abuse

F. Leland McClure, MSci, PhD, D-ABFT discusses current trends in prescription drug abuse/misuse, prescription drug monitoring programs, the assistance that laboratory testing can provide and more.

Quest Diagnostics Value Proposition

Quest Diagnostics Value Proposition

Quest Diagnostics offers a prescription drug management program that incorporates clinical expertise, with a comprehensive menu, and accessible testing.