National Advisory Committee on Drugs and Alcohol

The NACDA was established in response to the drug problem to assist in our continued need to improve our knowledge and understanding of problem drug use.

The goal of the NACDA is to advise the Government on problem drug use in Ireland in relation to prevalence, prevention consequences and treatment based on our analysis and interpretation of research findings.

The potency of THC in cannabis products


The potency of THC in cannabis products

The potency of THC in cannabis products Authors: Colette Arnold, MSc
Forensic Science Laboratory
Published: November 2011
Pages: 18
File Size: 1.5mb
Format: PDF

Executive Summary


The first paper in the series deals with the potency of various cannabis products on the Irish market, in terms of its content of the main psychoactive component THC (short for Tetrahydrocannabinol). The NACD hopes to update the data in this report on a regular basis given the increasing international concern about rising THC levels particularly in herbal cannabis of the “Skunk” or “Weed” variety. Allied to the increased levels of THC in these varieties is the absence of a second key chemical called CBD which seems to block some of the effects of THC on the brain.

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