Category: Forensic Toxicology

The Reliability Of Gunshot Residue

This article explains The Reliability Of Gunshot Residue and the scientific, legal or practical evidence readers should understand.

Does Bleaching Hair Affect a Hair Follicle Drug Test?

Short answer: Yes. Bleaching can affect what a hair drug test—often called a “hair follicle test”—measures. Bleach, permanent dye, relaxers, and other chemical treatments can change drug concentrations in hair. The effect varies by drug, treatment, hair condition, and laboratory method. Cosmetic treatment does not reliably make a person “pass”…

How Real Is Toxicology Testing On TV

This article explains How Real Is Toxicology Testing On TV and the scientific, legal or practical evidence readers should understand.

Types Of Drug Tests In The 21st Century

This article explains Types Of Drug Tests In The 21st Century and the scientific, legal or practical evidence readers should understand.

Drug Toxicology: Alcohol vs Drug related DUI

This article explains Drug Toxicology: Alcohol vs Drug related DUI and the scientific, legal or practical evidence readers should understand.

A Short History of Forensic Toxicology

This article explains A Short History of Forensic Toxicology and the scientific, legal or practical evidence readers should understand.

Drug Toxicology: Impairment & Driving

This article explains Drug Toxicology: Impairment & Driving and the scientific, legal or practical evidence readers should understand.

Drug Testing: Sweat Patches 101

This article explains Drug Testing: Sweat Patches 101 and the scientific, legal or practical evidence readers should understand.

NarcoPouch Test False Positive Dilemma

This article explains NarcoPouch Test False Positive Dilemma and the scientific, legal or practical evidence readers should understand.

Toxicology Lawyer Talks Drug Testing in The Workplace

This article explains Toxicology Lawyer Talks Drug Testing in The Workplace and the scientific, legal or practical evidence readers should understand.

Advances in Tools For the Forensic Toxicologist

This article explains Advances in Tools For the Forensic Toxicologist and the scientific, legal or practical evidence readers should understand.

Drug Testing Myths

This article explains Drug Testing Myths and the scientific, legal or practical evidence readers should understand.

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Recent Blog Articles

CBD Epilepsy Trial Liver-Enzyme Events Often Involved Concomitant Valproate

Liver-enzyme events during CBD epilepsy trials often occurred in patients also taking valproate. That pattern makes the full medication regimen important, but it does not isolate which drug caused an individual event or establish safety without valproate. The finding came from treated epilepsy populations An original reanalysis of four randomized…

Read Article: CBD Epilepsy Trial Liver-Enzyme Events Often Involved Concomitant Valproate

Serum Cannabinoid Fingerprints Did Not Reliably Separate Medical and Street Cannabis

A broad serum cannabinoid panel did not reliably distinguish THC-rich medical cannabis from street cannabis in a pilot study. More analytes supplied useful patterns, but they did not create a universal test for prescription-source attribution. Different products were represented The study recruited 23 patients receiving cannabis-based medicines or medical cannabis…

Read Article: Serum Cannabinoid Fingerprints Did Not Reliably Separate Medical and Street Cannabis

Stored Cannabinoid Urine Screens Lost Signal Without Measuring Chemical Degradation

A stored urine specimen can lose cannabinoid screening response, but the response alone does not reveal exactly how much of a named compound chemically degraded. An analog-stability study used immunoassay signal as its endpoint rather than compound-specific mass-spectrometric concentrations. The experiment used fortified human urine Researchers added individual cannabinoid analogs…

Read Article: Stored Cannabinoid Urine Screens Lost Signal Without Measuring Chemical Degradation