Toxicology Expert Witness for Drug and Poisoning Cases
Toxicology Expert Witness for Drug and Poisoning Cases
Patrick C. Filkins, PharmD, BCPS, DABAT
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Board-certified clinical toxicologist and licensed emergency medicine clinical pharmacist providing clear, evidence-based, defensible opinions and testimony for criminal, civil, and medical malpractice litigation.
Interpretation of blood and urine drug levels
Assessment of impairment, intoxication, and toxic exposure
Postmortem toxicology review and causation analysis
Support for plaintiff or defense counsel, nationwide
Board Certifications
Toxicology - AACT-ABAT
Pharmacotherapy - BPS
Current Roles
Clinical Toxicologist
Emergency Medicine Clinical Pharmacist
Adjunct Instructor of Emergency Medicine
Experience
Over 5 years of clinical practice in Emergency Medicine and Toxicology
Multiple peer-reviewed publications
Multiple national and international presentations
Location/Availability
Based in Atlanta, Georgia
Available for cases nationwide
Services For Attorneys
Services For Attorneys
Filkins Toxicology Consulting provides timely, evidence-based toxicology support for attorneys handling criminal, civil, and medical malpractice matters. Services are tailored to the needs of each case and include both consulting and testifying roles.Â
Case Evaluation & Record Review
Case Evaluation & Record Review
Comprehensive review of medical records, EMS reports, lab data, and toxicology results
Identification of inconsistencies, alternative explanations, and data gaps
Impairment & Causation Analysis
Impairment & Causation Analysis
Opinions regarding impairment at the time of incident
Assessment of contribution of drugs, alcohol, and polypharmacy to alleged harm
Evaluation of standard of care in toxicology-related management
Interpretation of Toxicology Testing
Interpretation of Toxicology Testing
Blood and urine drug level
Therapeutic vs. toxic ranges
Postmortem redistribution and confounding factors
Reports, Deposition, and Trial Testimony
Reports, Deposition, and Trial Testimony
Written expert reports and affidavits
Deposition preparation and testimony
Clear, jury-friendly explanations of complex toxicology concepts
Types of Cases and Issues
Types of Cases and Issues
Criminal & DUI / DWI Matters
Criminal & DUI / DWI Matters
Alleged drug- or alcohol-related impairment
DUI / DWI and vehicular homicide cases
Possession or distribution with toxicology evidence
Drug-facilitated crimes
Illicit drugs
Civil & Medical Malpractice Matters
Civil & Medical Malpractice Matters
Alleged medication errors and adverse drug events
Fentanyl, kratom, opioids, benzodiazepines, and polypharmacy
Over-the-counter and prescription drug toxicity
Postmortem toxicology in wrongful death claims
Exposure to toxic substances (e.g., pesticides, heavy metals)
How I Work With Counsel
How I Work With Counsel
Initial Case Screening
A brief discussion with counsel to confirm that the matter is within my scope of expertise and to identify key toxicology questions.
Document Review & Preliminary Opinion
Structured review of records, test results, and timelines, followed by a preliminary opinion and recommendations for further testing or records if needed.
Formal Report & Case Strategy Support
Preparation of clear, defensible opinions in written form, including key teaching points to assist with deposition and trial strategy.
Deposition and Trial Testimony
If requested, I provide deposition and trial testimony that is objective, scientifically grounded, and understandable to judges and juries.
I accept both plaintiff and defense engagements and limit my caseload to ensure timely, thorough work on each matter.
About Patrick C. Filkins, PharmD, BCPS, DABAT
About Patrick C. Filkins, PharmD, BCPS, DABAT
Patrick C. Filkins, PharmD, BCPS, DABAT is a board-certified clinical toxicologist and licensed clinical pharmacist based in Atlanta, Georgia. He obtained his Bachelor of Science in Biochemistry from SUNY Old Westbury and his Doctor of Pharmacy from the University of Saint Joseph. He completed a PGY1 pharmacy residency at Grady Memorial Health System followed by a clinical toxicology fellowship at the Georgia Poison Center.
Dr. Filkins is currently a clinical toxicologist at the Georgia Poison Center, an emergency medicine clinical pharmacist at Grady Memorial Health System, and an adjunct instructor in the Department of Emergency Medicine at Emory University School of Medicine. He has authored and co-authored multiple publications and abstracts in toxicology, pharmacology, and emergency medicine.
His areas of expertise include drugs of abuse, kratom, opioids and fentanyl, alcohol and impaired driving, postmortem toxicology, pharmacokinetics and pharmacodynamics, medication errors, and toxic exposures to substances such as pesticides and heavy metals.
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