Marijuana

Is usually smoked as a cigarette (joint), but may also be smoked in a pipe. Less often, it is mixed with food and eaten or brewed as tea. Sometimes users open up cigars and remove the tobacco, replacing it with pot—called a “blunt.” Joints and blunts are sometimes laced with other, more powerful drugs, such as crack cocaine or PCP (phencyclidine, a powerful hallucinogen).When a person smokes a joint, he usually feels its effect within minutes. The immediate sensations—increased heart rate, lessened coordination and balance, and a “dreamy,” unreal state of mind—peak within the first 30 minutes. These short-term effects usually wear off in two to three hours, but they could last longer, depending on how much the user takes, the potency of THC and the presence of other drugs added into the mix.