Drug abuse in Hong Kong abuse problems through providing crisis intervention services and drug education. Recreational drug use is characterised by the use of drugs with psychoactive effects without medical justification for personal enjoyment. Recreational drug use in Hong Kong among young adults has been in the rise in recent decades, popularised by the introduction of club culture in the West and adolescents open-minded attitude towards illegal drug use as a normal part of leisure. The revival of this trend is connected to the change in drug abuse pattern of adolescents, mainly from party drugs such as ketamine and MDMA. The popularisation of party drugs
Drug delivery to the brain permeability was known and labeled them either CNS+ or CNS- for compounds that easily transverse the barrier and those that did not. They then set out to analyze the above factors to determine what is necessary to transverse the blood–brain barrier. What they found was a little surprising; lipophilicity is not the leading characteristic for a drug to pass through the barrier. This is surprising because one would think that the most effective way to make a drug move through a lipophilic barrier is to increase its lipophilicity, it turns out that it is a complex function of all of