In a recent study, the percentage of persons with inhalant dependence reporting clinically significant inhalant withdrawal symptoms was almost equal to the percentage of persons with cocaine dependence reporting clinically significant cocaine withdrawal symptoms.
Babies of heroin addicts are born dependent on the drug and must go through withdrawal as their first task in life.
Studies indicate that elevated levels of serum C-reactive protein (CRP), a protein associated with inflammation, in cocaine abusers is associated with endothelial abnormalities and coronary artery calcification; factors known to contribute to heart disease.
The 2009 World Drug Report stated that annual marijuana herb production was estimated to be anywhere from 13,300 to 66,100 metric tons.