Stimulants - Amphetamines (Dexedrine, Ritalin, Preludin, Ionamin, Cylert)
Amphetamines are a class of synthetic drugs that are strong stimulants of the central nervous system, increasing the heart rate and raising blood pressure. Administered in capsule or tablet form, they increase alertness and reduce hunger. Street names for amphetamines include crank, ice, uppers, bennies, rockets, speed, and black beauties.

Appearance
Capsules and tablets.

Symptoms of Use
Agitation, excessive activity, euphoria, insomnia.

Symptoms of Overdose
Cardiac irregularities, headache, coma, death.

Symptoms of Withdraw
Excessive hunger, muscle aches, tremors.

Heroin
Heroin is derived from the seed of the opium poppy plant and is highly addictive. Heroin, as well as morphine and other opium derivatives, is a powerful analgesic drug. It is known as a narcotic analgesic because it can induce sleep (or, in excessive amounts, coma). Heroin also induces a sense of euphoria through interaction with the brain's opiate receptors. A number of slang names for heroin include chiva, smack, horse, junk, tar, and black tar.

Appearance
White to dark brown powder, or black tar-like substance that resembles dark caramel

Symptoms of Use
Euphoria, lethargy, constricted pupils, drowsiness

Symptoms of Overdose
Shallow breathing, vomiting, convulsions, coma, death

Symptoms of Withdraw
Diarrhea, tremors, chills, shakes, sweating, runny nose and eyes

Ethyl Alcohol - Beer, Wine, Vodka, Whiskey, Bourbon, Rum
Ethyl alcohol, also known as ethanol and grain alcohol, is a colorless, flammable liquid. Drinkers may become addicted to any of the above beverages. Additionally, the combination of alcohol and drugs, such as commonly used sleeping pills, tranquilizers, antibiotics, and aspirin, can be fatal, even when both are taken in non-lethal doses.

Appearance
Bottles or cans

Symptoms of Use
Relaxation, loss of inhibitions, lack of concentration

Symptoms of Overdose
Nausea, vomiting, rapid pulse, coma, death

Symptoms of Withdraw
Agitation, anxiety, hallucinations, shakes

Cocaine
Cocaine is an alkaloid drug found in the leaves of the coca plant. Street names include coke, snow, blow, nose candy, rock, crack, and base. Cocaine can be injected, inhaled or smoked. Cocaine's fine white powder is often sniffed. Crack is highly concentrated chemically reconstituted cocaine, in pebble like shape, which users smoke.

Appearance
Cocaine - white crystalline powder; crack - white to tan pellets or rocks.

Symptoms of Use
Euphoria, excitability, talkativeness, dilated pupils, paranoia

Symptoms of Overdose
Hallucinations, convulsions, coma, cardiac arrest, death

Symptoms of Withdraw
Apathy, irritability, social withdrawal, fatigue

Inhalants - Volatile Hydrocarbons, Amyl/Butyl Nitrite, Nitrous Oxide, Halothane
Some of the street names of inhalants are rush, huff, airplane glue, laughing gas, and spray paint.

Appearance
Aerosol cans, clear or yellowish liquid in ampules, metal cylinder sold with a balloon.

Symptoms of Use
Similar to alcohol, slurred speech, lack of inhibitions, nausea

Symptoms of Overdose
Liver, brain, and nerve damage; heart failure, coma, death

Symptoms of Withdraw
Anxiety, agitation, anti-social behavior

Marijuana
Marijuana (also spelled marihuana) is the common name given to any drug preparation from the hemp plant, Cannabis sativa. Cannabis preparations have acquired a variety of slang names, including grass, pot, hashish, ganja, tea, reefer, weed, and Mary Jane. Cannabis is smoked, eaten in cakes, and/or drunk in beverages. Marijuana is prepared most often as a tobacco-like mixture that is smoked in a pipe or rolled into a cigarette.

Appearance
Similar to dried parsley

Symptoms of Use
Relaxation, talkativeness, lowered inhibitions, euphoria

Symptoms of Overdose
Fatigue, paranoia, delusions, hallucinations

Symptoms of Withdraw
Lost of appetite, restlessness, irritability, insomnia

Depressants - Seconal, Nembutal, Valium, Noctec, Equanil
Drugs that retard, slow down, or depress signals passing through the central nervous system and produce relaxation, a lowering of anxiety, and, at higher doses, drowsiness and sleep, are called depressants. They include sedatives, such as barbiturates, methaqualone, and tranquilizers, such as Valium. Street names include downers, goofballs, reds, yellow jackets, and mickey finns.

Appearance
Red, yellow, blue or red-and-blue capsules, tablets, powder, liquid

Symptoms of Use
Similar to alcohol, relaxation, slurred speech, sleep

Symptoms of Overdose
Shallow respiration, dilated pupils, coma, death

Symptoms of Withdraw
Anxiety, sweating, fever, agitation, shakes

Hallucinogens - LSD, PCP, MDMA, STP, DMT, Mescaline, Psilocybin
Hallucinogens are a group of plant-derived or synthetic chemical substances, some of which human beings have used, throughout history, to modify their state of consciousness for medicinal, religious, or recreational purposes. The most potent hallucinogen is LSD (lysergic acid diethylamide), often simply called "acid." Other street names for hallucinogens are angel dust, ecstasy, serenity, peace, peyote, and 'shrooms.

Appearance
Tablets, white or off-white crystalline powder, capsules, hard brown disks, fresh or dried mushrooms

Symptoms of Use
Hallucinations, confusion, euphoria, anxiety, panic

Symptoms of Overdose
Hallucinations, agitation, violence, convulsions, death

Symptoms of Withdraw
Possible flashbacks