The Drug Enforcement Administration arrested 4,400 individuals in 2002 for crimes related to crack cocaine.
One person may have a "bad trip" on a low dose of LSD, while someone else who uses the drug often can take a high dose and get through it without distress.
The rate of past month marijuana use in the United States among individuals aged 12 or older rose from 6.1% in 2008 to 6.6% in 2009.
Opana can be administered as a tablet and or by injection or suppository.