Studies of secondary schools indicate that students in the 8th grade regularly report the highest rate of past year, current, and lifetime inhalant use.
Intramuscular heroin injection produces a slower onset of effects, taking several minutes to feel the intense rush users experience.
Research indicates that drug rehab does not need to be voluntary to be effective.
Individuals who overcome withdrawal but do not seek drug treatment are likely to relapse back into drug use, making the recurrence of withdrawal syndrome high.