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Xylazine is a veterinary sedative that is becoming an increasingly popular cutting agent in fentanyl samples. This combination of drugs is commonly referred to as “Traq”. Xylazine is not approved for use in humans, so it is not fully understood...

With diluted wastewater discharge being used as a source of drinking water in many locations throughout the world, it should be of concern which medications are commonly found in our wastewater. Researchers at the Institute of Environmental Technology, Vietnam Academy...

As Cannabis use continues to rise worldwide, more research is needed in the antemortem and postmortem toxicology of THC and its metabolites. Postmortem toxicology is crucial for death investigations but can be challenging due to postmortem redistribution (PMR). Blood and...

Metastasis of cancer cells is the primary cause of death in cancer patients and continues to be one of the most difficult clinical problems. There are many theories about how metastasis occurs, but the main aspects have been linked to...

Most states have their method for extraction and fractionation, or they borrow one from another state. The sample is extracted with methylene chloride, solvent exchanged into n-hexane, and concentrated to a final volume. Fractionation is performed on a small 3...

The abuse of fentanyl, a synthetic opioid, is well known in humans. However, its misuse is becoming more popular in horseracing to enhance the performance of the racehorses. Fentanyl has both an analgesic and stimulatory effect on horses. The use...