Expert Insight in Pharmacology and Toxicology
Dr. James Sonner is a board-certified anesthesiologist and pharmacology expert with over 35 years of clinical, academic, and research experience.
Decades of Experience, Applied to Every Case
Dr. James Sonner is a Harvard-trained physician and former Professor of Anesthesiology at the University of California, San Francisco (UCSF), he provides expert analysis in cases involving anesthesia care, procedural sedation, drug effects, and toxic drug outcomes. His expertise includes the impact of genetic variability on drug safety and efficacy, providing a precision-medicine lens to complex adverse events.
Now focused on expert witness and consulting services, Dr. Sonner combines his extensive clinical and research background to provide objective, evidence-based evaluations. His work supports attorneys, organizations, and drug companies seeking accurate analysis in cases involving drug safety, anesthesia complications, and medication effects.
Areas of Expertise
- Drug interactions and adverse drug reactions
- Procedural sedation (including EGD and outpatient procedures): Standard of care and complication analysis.
- Opioids, benzodiazepines, and sedatives: Individual sensitivity including respiratory depression
- Peri-procedural medications: Impact of periprocedural drugs (eg, SSRIs, NSAIDs, gabapentin) on heart/lung function and recovery.
- Pharmacokinetics and pharmacodynamics: Analysis of drug movement and effect.
- Postmortem toxicology: Interpretation of drug levels in legal and forensic contexts.
- Pharmacogenetics & Pharmacogenomics: Genetic influences on drug metabolism and individual response to therapy.
Methodology
- Comprehensive medical record review
- Differential diagnosis of adverse outcomes
- Pharmacologic dose-response and mechanism analysis
- Comparison with FDA labeling and peer-reviewed literature
- Evaluation of standard of care (e.g., specialty guidelines)
- Pharmacogenetics/
pharmacogenomic data analysis including: Interpreting genetic factors that explain idiosyncratic or “unforeseeable” adverse drug reactions.
Why Attorneys Retain Dr. Sonner
- Harvard Medical School training and former UCSF Professor.
- Precision Pharmacology: Ability to bridge the gap between clinical outcomes and genetic predispositions.
- Extensive research record: Deep understanding of drug mechanisms and NIH-funded insights.
- Clear, jury-friendly explanations: Distilling complex pharmacologic and genetic data into understandable concepts for the trier of fact.
Expert Witness Services
Dr. Sonner specializes in pharmacology and toxicology expert witness services, providing clear, science-driven insight into complex drug-related and anesthesia cases.
Case Review & Analysis
Comprehensive evaluation of medical records, drug histories, and laboratory data.
Expert Reports
Clear, evidence-based written opinions.
Deposition Testimony
Detailed, professional responses under oath.
Courtroom Testimony
Simplifying complex pharmacological concepts for judges and juries in both military and civilian courts.
FAQs
What Are Dr. Sonner’s Core Areas of Expertise?
Dr. Sonner is a nationally recognized specialist in clinical pharmacology and toxicology, with particular expertise in drug-drug interactions, adverse drug reactions, and the complex pharmacology of medications used before, during, and after medical procedures. His work is especially valuable in cases involving perioperative pharmacology, where the interplay between chronic medications, anesthetic agents, procedural drugs, and patient-specific factors can contribute to serious complications.
Is Dr. Sonner Currently in Clinical Practice?
Dr. Sonner has transitioned from active clinical practice to focus exclusively on pharmaceutical research, scientific innovation, and medical-legal consulting. This allows him to dedicate his full expertise to case analysis, expert testimony, and advancing research in drug mechanisms and therapeutic applications.
What Types of Cases Does Dr. Sonner Evaluate?
Dr. Sonner provides expert analysis in cases involving adverse drug events surrounding medical procedures, including sedation-related complications, opioid toxicity and overdose, medication interactions, and unexpected perioperative outcomes. He is particularly skilled in evaluating the pharmacokinetic (PK) and pharmacodynamic (PD) mechanisms that underlie drug-related injuries, helping clarify how medication effects, interactions, and patient physiology contribute to clinical outcomes.
Where Is Dr. Sonner Located?
Based in Rancho Santa Margarita, California, Dr. Sonner provides expert consultation and testimony to legal teams nationwide.