The rate of emergency room department visits during 2009 in which cocaine was a factor was highest among individuals aged 35-44.
Methadone is rapidly absorbed into the bloodstream from the gastrointestinal tract within thirty minutes of being taken.
Methadone withdrawal is so difficult to endure that users who are dependent and addicted often think that they will be on it for the rest of their lives, or at least for many years.
More PCP users die from suicide while high on the drug than from any physiological effects on the central nervous system.