The Government’s leading adviser on illegal drugs has expressed concern about the high potency of cannabis being cultivated in cannabis grow-houses here, saying it is much more likely to cause psychosis than other forms of the drug.
The chairman of the National Advisory Committee on Drugs, Dr Des Corrigan, said the levels of tetrahydrocannabinol (THC), the substance that gives cannabis its potency, are much higher in the cannabis “skunk” now being grown here.
He was aware that those growing the crops were mixing THC chemicals into water being used to water the plants, and this was greatly increasing the potency. The same issue arose when cannabis grow-houses became popular in Britain midway through the last decade.
Source: Conor Lally, Irish Times, 23/09/2011