MDMA: - methlenedioxymethamphetamine - Ecstasy, X, XTC, Adam, Clarity, Peace, Lover's Speed, Eve
Similar to the stimulant methamphetamine and the hallucinogen mescaline, MDMA is usually taken orally as a tablet. It causes increased heart rate and blood pressure, and may lead to an elevation of body temperature that causes kidney and cardiovascular failure. When combined with alcohol, MDMA can be extremely dangerous, sometimes fatal. MDMA may lead to dehydration, hypertension, heart or kidney failure, seizures, stroke, memory impairment, and produce long-lasting neurotoxic effects in the brain.

GHB: Gamma-Hydroxbutyrate - Liquid Ecstasy, Georgia Home Boy, G, Grievous Bodily Harm
A clear odorless liquid, GHB is a central nervous system depressant and has been associated with poisonings, overdoses, and date rape. It can slow breathing and heart rate to dangerous levels. GHB overdose can occur rather quickly and lead rapidly to loss of consciousness, coma, and death. The purity and strength of individual doses of the drug can vary greatly, making overdoses likely.

Ketamine: K, Special K, Vitamin K, Cat Valium
Karamine is primarily a veterinary anesthetic that produces dissociative dream-like or hallucinatory effects similar to phencyclidine (PCP). The drug is used as a liquid applied to marijuana or tobacco products, or as a white powder that is snorted like cocaine, or it can be injected. Ketamine can produce delirium, amnesia, impaired motor function, high blood pressure, depression, and potentially fatal respiratory effects. It can also result in impaired attention, learning ability and memory.

Rohypnol: Flunitrazepam - Roofies, Rophie, Roche, Forget-me
benzodiazepine sedative similar to Valium and Xanax, flunitrazepam is not approved for prescription use in the US. The drug is taken orally in tablet form, dissolved in beverage, or ground up and snorted. Because the drug is odorless and tasteless and produces profound "anterograde amnesia," it can be administered to a person without his or her knowledge and has been associated with date rape and other sexual assaults. Other effects include decreased blood pressure, drowsiness, visual disturbances, dizziness, confusion, gastrointestinal disturbances and urinary retention.

Methamphetamine:  Meth, Speed, Ice, Glass, Crystal, Crank, GoFast, Chalk, Fire
Methamphetamine, an odorless white crystalline powder, affects many areas of the central nervous system. It is a highly addictive stimulant that can be snorted, smoked, injected, taken orally, or dissolved in beverages. The drug produces increased levels of activity, agitation, excited speech, and decreased appetite. Methamphetamine is a neurotoxin associated with serious long-lasting effects on the dopamine transporter system as well as with other dangerous health effects including aggression, violence, memory loss, psychotic behavior and cardiac damage.

Lysergic Acid Diethylamide: LSD, Acid, Blotter, Cubes, Dots, L, Microdot, Sugar, Yellow Sunshines, Boomers
LSD is a powerful hallucinogen that is taken orally, usually on squares of blotter paper, sugar cubes, or pills that have absorbed the liquid drug. The drug produces profound and unpredictable abnormalities in sensory perception, including distortions of sound and sight, and emotional effects that create rapid mood swings ranging from intense fear to euphoria. Physical effects include higher body temperature, increased heart rate and blood pressure, sweating, loss of appetite, sleeplessness, dry mouth, tremors, nausea, numbness and weakness. Long-term disorders associated with LSD are persistent psychosis and hallucinogen persisting perception disorder ("flashbacks").