Once someone has tried crack cocaine they simply cannot predict or control the extent to which they will continue using the drug.
Propellant in canned air when inhaled can fill the lungs completely and leave no room for oxygen, which can cause death.
Short-term residential drug rehab was first designed to address alcohol problems, and then transitioned into a multi-faceted program during the cocaine epidemic in the mid-1980s, at which point many began to treat other types of addiction.
Major opiate or synthetic opioid withdrawal symptoms peak between 24 and 48 hours after the last dose and subside after about a week.