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Toxicology is the study of the adverse effects of chemical, physical or biological agents on living organisms and the ecosystem, including the prevention and betterment of such adverse effects.

Chairman Expert Witnesses:

Medford, NY, US

PRC Professional Records Consulting

Over 30 years of continuous clinical practice as R.N. Diverse practice includes: Intravenous Infusion, Home Care, Clinical Research Protocols,Adjunct Staff University and Medical Surgical Nursing. Standards of Care, Medical Records Review

Executive Expert Witnesses:

Seattle, WA, US

Pacific Neuropsychiatric Institute

Vernon M Neppe  MD, PhD.  Fellow Royal Society (SAf): Internationally respected, experienced, published neuropsychiatrist, behavioral neurologist, psychopharmacologist, psychiatrist, epilepsy specialist, researcher, neuroscientist, neuropharmacologist and objective nationally retained  forensic specialist (civil: plaintiff / defense), author and public speaker.

Watsonville, CA, US

Alan Buchwald, M.D., Inc.

Provides specific consultation in Medical Toxicology, and Occupational & Environmental Medicine. He evaluates patients by physician referral, or for medical-legal issues by your attorney. For workers' compensation issues, he is available to claims representatives and for AME and IME evaluations.

Professional Expert Witnesses:


Forensic Institute Of Science

An independent pathologist for the purpose of pathology,toxicology, first autopsy,second autopsy, death investigation.

Rockville, MD, US

Internationally recognized consulting / expert witness practice specializing in toxicology, carcinogenesis, pharmacology, and pharmacy. Defense & Plaintiff; Chemicals & Drugs.

Cincinnati, OH, US

Harry B. Plotnick, Ph.D., J.D., Consultant In Forensic Toxicology

Case reviews and expert testimony relating to the effects and measurement of alcohol and drugs and the adverse effects of drugs and chemicals.

Richmond, VA, US


Dr. Matthew C. Lee is a practicing Physician and Pharmacist in Richmond, VA, who also has a Master's of Science in Pharmacology and Toxicology, with research experience and publications in the field of drugs of abuse.  Distinguished and well respected as Physicians, Pharmacist, and Pharmacologist/Toxicologist. He has testified and supported litigation in a wide variety of cases in criminal and civil, including plaintiffs and defendants.

Vermillion, SD, US

Science Expert - Pharmacology, Toxicology and Clinical Laboratory Testing

Newport Beach, CA,, US

Newport Longevity Medical Group

Pulmonary Internist/Chest Physician. 20+ years experience Medical Malpractice and Personal Insury. Retained 500+ times. 50+ trial appearances. Associate Clinical Professor of Medicine UCLA. Areas of expertise: Wrongful Death, Toxic Torts.

Olathe, KS, US

D.J. O'Brien & Associates, Inc.

EW #367 is currently in his twentieth year of evaluating drug and chemical adverse health effects cases for causation and adequacy of warnings.

Associate Expert Witnesses:

Huntington, NY, US

Toxicology Consulting Group

A full service toxicology consulting practice. We specialize in forensic, clinical, occupational and environmental toxicology.

Griffin, GA, US

Risk & Causation for Environmental/Occupational Health, Chemical/Biological Exposure, Toxicology & Epidemiology. Board Certified Toxicologist.

Sarasota, FL, US

Food, Drug, Chemical Services

Over 35 years experience of trial experience, Biomedical Science, Toxicology and Regulatory Compliance for Drugs, Biologics, Diagnostics and Pesticides. Well-versed in Drug and Medical Product Development, licensing, patents and acquisitions.

Austin, TX, US

Dydek Toxicology Consulting

30 years experience in chemical exposures that affect human health and welfare. He is a Board-Certified Toxicologist with a Ph.D. in Environmental Toxicology and Licenced Professional Engineer.

Salt Lake City, UT, US

Forensic toxicologist with 22 years drug and alcohol testing experience

Pittsburgh, PA, US


Board certified academically published forensic neuropsychiatrist. Expertise in brain injury, stroke, neurotoxicology, acute/chronic pain, dementia, alcohol & substance abuse, gambling addiction.

Pittsburgh, PA, US


Board certified academically published forensic neuropsychiatrist. Expertise in brain injury, stroke, neurotoxicology, acute/chronic pain, dementia, alcohol & substance abuse, gambling addiction.

Los Angeles, CA, US

Bronston Expert Consultant

National Chairman, Ethics Committee of the American College of Medical Quality, Emergency Medicine and Medical Consulting Services.

Ft. Lauderdale, FL, US

Dr. Teri Stockham, Ph.D., Inc.

Nationally recognized expert in postmortem and impairment toxicology. Expertise includes the analysis and interpretation of ethanol, drugs and poisons in biological specimens.

Stoughton, MA, US

Safdoc Systems, LLC.

EW #745 Ph.D. is the 2001 ASSE Healthcare Specialty Practice Safety Professional of the year.

Dover, NJ, US

Atlantic Environmental Inc.

Over 30 years of experience directing and managing programs and acting as principal technical consultant. Expert in human exposure to hazardous materials in the work or general environment

Mesilla Park, NM, US

ProAg Consultants

Pro-Ag Consultants provides reliable, expertise in: plant physiology, soil contamination, pesticides misuse, crop loss, biological, plant diseases, scouting,

Loma Linda, CA, US

Nearly 35 years experience teaching pharmacology and toxicology, and over 25 years consulting the providing expert testimony in these fields.

Manhattan Beach, CA, US

DNA Industrial Hygiene

Safety & Health Expert, Hazardous Material Expert, Board Certified Indusrtial Hygienist. He has over thirty years of experience in health and environmental risk evaluation and mitigation.

Malvern East, VICTORIA, US

Toxikos Pty Ltd

EW #1082 is a certified toxicologist (Diplomate of the American Board of Toxicology)

Malvern East, VICTORIA, US

Toxikos Pty Ltd

EW #1082 is a certified toxicologist (Diplomate of the American Board of Toxicology)

Tucson, AZ, US

Alcohol Mgt. Services, Inc.

Nationally recognized expert regarding over serving, serving minors and violence regarding the standard of care. Many national articles published regarding these issues.  Excellent trial experience.

Ruston, LA, US

American Environmental Consulting Inc

Toxicology expert.

Tucson, AZ, US

Chemical Accident Reconstruction Services, Inc.

Specializes complex industrial chemical accidents, fires and explosions as well as chemical-related consumer product injuries.

Norfolk, VA, US

Scientific And Forensic Services Inc

Qualified experts in toxic exposure cases since 1979. Asbestos-Industrial Hygiene-Environmental

Bromsgrove, WO, GB

Jackson Hocking Limited

25 years experience in occupational medicine (FFOM)in the chemical industry and external lecturer in Toxicology at Birmingham (UK)University.

Walnut Creek, CA, US

Medical Toxicology & Forensic Medicine - Occupational & Environmental Medicine

Dayton, TX, US

GEO Associates

GEO Associates provides litigation support and expert witness testimony for cases that involve Forensic Geology, Geophysics, and Meteorology including Weather Event Re-Construction and Force Majeure.

Ann Arbor, MI, US

Mineola, NY, US

Dr. James Pugh P.E., Director

InterCity is entering its 30th year as a provider of forensic engineering, consulting and expert testimony to thousands of law offices, insurance companies and government agencies.

Lutz, FL, US

Toxicologist experienced as both defense and plaintiff expert witness.

East Norwich, NY, US

Interactive Consulting, Inc.

30+ years of experience in the Specialty Chemical and Allied industries and is a recognized expert.

Los Angeles, CA, US

EW #388 has extensive experience in Internal Medicine, drug and alcohol abuse, medical malpractice, enviromental toxicology, exposure to toxic and irritant chemicals and carcinogens.

Thousand Oaks, CA, US

Roth Toxicology Consulting

A Diplomate of the American Board of Toxicology with 25 years of experience in all key areas of toxicology.

Sanibel, FL, US

Toxicology Consultants & Assessment Specialists, Inc.

Board certified, provides impartial toxicological evaluations of chemical exposures, carcinogens, heavy metals, etc; specializes in chemical causation. Never been denied qualification as an expert.

Columbia, MO, US

Olen Brown Consulting

EW #13831 PhD, board certified Toxicologist, peer reviewer for NIH, EPA, Superfund, CDC, ATSDR, since 1984 an expert for attorneys in 14 states, specializing in complex, multidisciplinary cases.

Columbia, MO, US

ORB Consulting

Toxicology and Microbiology/Infectious Disease Expert: chronic and acute toxic exposure to chemicals from the environment and workplace [solvents (including benze and gasoline)], pesticides, heavy metals; bacterial, viral, fungal infections; antimicrobial thearpy; allergic reactions; review of medical records for causation; assessment of laboratory records; assessment of environmental data; effective reports and complex cases are my specialty.

Bedford, TX, US

Need A Toxicologist

Risk & Causation for Environmental/Occupational Health, Chemical/Biological Exposure, Toxicology & Epidemiology. Board Certified Toxicologist.

Houston, TX, US

Rimkus Consulting Group, Inc.

Seasoned technical consultants and business analysts to address industrial and commercial accidents and incidents, property-related problems, and environmental, safety and industrial hygiene issues.

Sacramento, CA, US

Benchmark Medical Consultants, Inc.

Since 1988 we have provided turnkey support services for our nationwide network of 1,400 accredited, board-certified physicians covering more than 250 medical specialties.

Griffin, GA, US

Dr. Bush is a medical-pharmacology/toxicology expert consultant, who specializes in cases that relate to drug pharmacology.

Sacramento, CA, US

Contact: Gordon H. Damant, Director - CA

Expert #2074 is a forensic engineer, consultant and expert testimony to thousands of law offices, insurance companies and government agencies.

Houston, TX, US

1st Online Malpractice Consultations

Board Certified Physicians and Attorneys provide online medical malpractice consultation, referrals, and support services for patients, attorneys and adjusters.

Bayside, NY, US

National Medical Consultants, P.C.

We are the premier medical review team from some of the finest institutions in the nation.

Collierville, TN, US

MBA Forensic Testing, Inc.

Toxicology lab director and board certified forensic and clinical toxicologist with extensive expert witness and consulting.

Los Angeles, CA, US

Environmental Diseases

Dr. Brautbar's practice covers aspects of Internal Medicine, Nephrology and Toxicology, such as lung disease, chemical injury, occupational diseases, chemically related cancers and medical causation.

Longmont, CO, US


Expert Witness Testimony. Environmental/Occupational Health. Chemical/Biological Exposure, Risk & Causation. Toxicology & Epidemiology. Former Leading Scientist at Battelle Institute. Board Certified.

Clinton Township, MI, US

Ernest Chiodo, M.D., J.D., M.P.H., M.S., M.B.A., C.I.H.

Ernest P. Chiodo, M.D., J.D., M.P.H., M.S., M.B.A., C.I.H. is a physician, attorney, industrial hygienist, industrial toxicologist and biomedical engineer licensed to practice medicine in New York, Michigan, and Illinois as well as law in Michigan and Illinois.   Former Medical Director Detroit Health Department. (Physician, attorney, epidemiologist, toxicologist, certified industrial hygienist.)

Pasadena, CA, US

Mercy Steenwyk, Director

Your technical and scientific expert resource since 1991 that can give you the TECHNICAL ADVANTAGE and the COMPETITIVE EDGE in your cases. Highly quality experts in hundreds of disciplines. Thousands of satisfied clients. Competitive rates.

Las Vegas, NV, US

Emergency Medicine Experts

Board certified and residency trained in emergency medicine , more than 14,000 hours of clinical practice, licensed in NV & CA, medical malpractice expert, impecable record.


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More Details:

Toxicology (from the Greek words toxicon and logos) is the study of the adverse effects of chemicals on living organisms. It is the study of symptoms, mechanisms, treatments and detection of poisoning, especially the poisoning of people. The chief criterion regarding the toxicity of a chemical is the dose, i.e. the amount of exposure to the substance. It is safe to say that almost all substances are toxic under the right conditions. As Paracelsus, the father of modern toxicology said, Â?Sola dosis facit venenumÂ? (only dose determines the poison). Paracelsus, who lived in the 16th century was the first person to explain the dose-response relationship of toxic substances.

Many substances regarded as poisons are toxic only indirectly. An example is wood alcohol or methanol, which is not poisonous itself, but is chemically converted to toxic formaldehyde in the liver. Many drug molecules are made toxic in the liver, a good example being acetaminophen (paracetamol), especially in the presence of alcohol. The genetic variability of certain liver enzymes makes the toxicity of many compounds differ between one individual and the next. Because demands placed on one liver enzyme can induce activity in another, many molecules become toxic only in combination with others. A family of activities that engages many toxicologists includes identifying which liver enzymes convert a molecule into a poison, what are the toxic products of the conversion and under what conditions and in which individuals this conversion takes place.