Marijuana
is a green, brown, or gray mixture of dried, shredded leaves, stems, seeds, and flowers of the hemp plant (Cannabis sativa). Cannabis is a term that refers to marijuana and other drugs made from the same plant. Other forms of cannabis include sinsemilla, hashish, and hash oil. All forms of cannabis are mind-altering (psychoactive) drugs.
The main active chemical in marijuana is THC (delta-9-tetrahydrocannabinol). Short-term effects of marijuana use include problems with memory and learning, distorted perception, difficulty in thinking and problem solving, loss of coordination, increased heart rate, and anxiety.
Marijuana is usually smoked as a cigarette (called a joint) or in a pipe or bong. Marijuana has also appeared in blunts, which are cigars that have been emptied of tobacco and refilled with marijuana, sometimes in combination with another drug, such as crack. It can also be mixed into foods or used to brew a tea.
Methamphetamine
is a highly addictive central nervous system stimulant that can be injected, snorted, smoked, or ingested orally. Methamphetamine users feel a short yet intense "rush" when the drug is initially administered. The immediate effects of methamphetamine include increased activity and decreased appetite. The drug has limited medical uses for the treatment of narcolepsy, attention deficit disorders, and obesity.
Most amphetamines distributed to the black market are produced in clandestine laboratories. Methamphetamine laboratories are, by far, the most frequently encountered clandestine laboratories in the United States. The ease of clandestine synthesis, combined with tremendous profits, has resulted in significant availability of illicit methamphetamine. Large amounts of methamphetamine are also illicitly smuggled into the United States from Mexico.
Pure Cocaine
was first used in the 1880s in eye, nose, and throat surgeries as an anesthetic and for its ability to constrict blood vessels and limit bleeding. However, many of its therapeutic applications are now obsolete because of the development of safer drugs.
Cocaine is the most potent stimulant of natural origin.
Crack
is cocaine that has been processed from cocaine hydrochloride to a free base for smoking. Crack cocaine is processed with ammonia or sodium bicarbonate (baking soda) and water. It is then heated to remove the hydrochloride producing a form of cocaine that can be smoked.
Approximately 100 years after cocaine entered into use, a new variation of the substance emerged. This substance, crack, became enormously popular in the mid-1980s due in part to its almost immediate high and the fact that it is inexpensive to produce and buy.
Cocaine is a powerfully addictive stimulant drug. The powdered, hydrochloride salt form of the drug can be snorted or dissolved in water and injected. Crack is cocaine that has not been neutralized by an acid to make the hydrochlorida salt. This form of cocaine comes in a rock crystal that can be heated and its vapors smoked. The term "crack" comes from the crackling sound made when it is heated.
In recent years, certain drugs have emerged and become popular among teens and young adults at dance clubs and "raves.
" These drugs, collectively termed "club drugs," include MDMA/Ecstasy (methylenedioxymethamphetamine), Rohypnol (flunitrazepam), GHB (gamma hydroxybutyrate), and ketamine (ketamine hydrochloride).
MDMA is a synthetic, psychoactive drug chemically similar to the stimulant methamphetamine and the hallucinogen mescaline.
The tasteless and odorless depressants Rohypnol and GHB are often used in the commission of sexual assaults due to their ability to sedate and intoxicate unsuspecting victims. Rohypnol, a sedative/tranquilizer, is legally available for prescription in over 50 countries outside of the U.S. and is widely available in Mexico, Colombia, and Europe.
GHB, available in an odorless, colorless liquid form or as a white powder material, is taken orally, and is frequently combined with alcohol. In addition to being used to incapacitate individuals for the commission of sexual assault/rape, GHB is also sometimes used by body builders for its alleged anabolic effects.
The abuse of ketamine, a tranquilizer most often used on animals, became popular in the 1980s, when it was realized that large doses cause reactions similar to those associated with the use of PCP, such as dream-like states and hallucinations.
Heroin
is a highly addictive drug and is the most widely abused and most rapidly acting of the opiates. Heroin is processed from morphine, a naturally occurring substance extracted from the seed pod of certain varieties of poppy plants.
Pure heroin, which is a white powder with a bitter taste, is rarely sold on the streets. Most illicit heroin is a powder varying in color from white to dark brown. The differences in color are due to impurities left from the manufacturing process or the presence of additives. Another form of heroin, "black tar" heroin, is primarily available in the western and southwestern U.S. This heroin, which is produced in Mexico, may be sticky like roofing tar or hard like coal, with its color varying from dark brown to black.
Heroin can be injected, smoked, or sniffed/snorted. Injection is the most efficient way to administer low-purity heroin. The availability of high-purity heroin, however, and the fear of infection by sharing needles has made snorting and smoking the drug more common. National Institute on Drug Abuse (NIDA) researchers have confirmed that all forms of heroin administration are addictive.
The non-medical use or abuse of prescription drugs