安非他明

Commonly called “speed” or “uppers,” amphetamines arouse the central nervous system, increasing heart rate, blood pressure, 还有体温. 它们最初是 introduced as prescription drugs to combat health problems like obesity and narcolepsy, but now most amphetamines are produced and sold illegally. 和其他兴奋剂一样， amphetamines increase alertness and attention, decrease appetite, and produce a feeling 幸福的. Highly addictive, amphetamines can produce physical and psychological 依赖. Those who use amphetamines repeatedly, or in high doses, run the risk of nausea, paranoia, restlessness, tremors, dizziness, hyperthermia, and heart failure.

Methamphetamine is one of the stronger forms of this group, and can produce anxiety 和幻觉. It’s popular because it is easily produced in bathrooms and kitchens, is cheaper than cocaine, and produces a high that can last up to eight hours. 的 drug is mixed with other substances, which may be poisonous, and makes it hard to tell how much methamphetamine the user is really ingesting. 有各种各样的街道 names, depending on the way it is used. When swallowed or sniffed, it’s commonly called “crystal;” when injected it’s called “crank;” and when smoked it’s referred to as “冰”或“玻璃”.”

狂喜

狂喜, made up of MDMA, is considered a “designer drug” because its chemical structure is allied to both amphetamines and mescaline. With stimulant and hallucinogenic properties, ecstasy is like a psychedelic amphetamine. Under the influence of ecstasy, users are likely to experience sweating, teeth clenching, nausea, chills, blurred vision, tremors 和心悸. Because ecstasy is a stimulant, it elevates heart rate, blood pressure, 还有体温. 的 combination of environmental factors frequently associated with ecstasy (tightly packed crowds, dancing, etc.) and elevated body temperature poses a major risk for dehydration. In fact, it’s not unusual for ecstasy users to 脱水致死. As a hallucinogen, MDMA causes illusions, disorientation, impaired coordination, and confusion. Long-term use of the drug can lead to physical tolerance and psychological addiction, intense depression, and anxiety.

What makes ecstasy even more dangerous is the number of pills sold as ecstasy that 不是纯摇头丸吗. 的se unknown substances can be extremely dangerous, sometimes 致命的. Unless you know the ecstasy tablet is pure MDMA, the signs and symptoms associated with its use may not be accurate. Advocating ecstasy as a “feel good” drug, supporters claim it produces intensely positive feelings by eliminating anxiety and encouraging 放松. Taken orally in tablet or capsule form, its effects last about four to 六个小时. Someone who overdoses will suffer faintness, rapid heartbeat, high blood pressure, muscle cramping, panic attacks, and possibly loss of consciousness or seizures. Coming down from a high produced by ecstasy, users report suffering from sleep problems, anxiety, paranoia, and depression.

MDMA elevates mood by increasing serotonin levels. This depletion of the brain’s store of serotonin is what leads to depression after use of ecstasy. 甚至还有另一个 pill won’t provide immediate relief because there is no serotonin left for the brain 释放. MDMA not only affects your mood, but also your intelligence. 研究 shows that ecstasy damages the parts of the brain used for learning and memory. 甚至 one use can lead to short-term memory loss.

利他林

Often prescribed to treat children with attention-deficit/hyperactivity disorder (ADHD), 利他林 increases the user’s focus and attention by increasing levels of dopamine, a neurotransmitter that controls mood and emotion. It’s a more potent stimulant than caffeine, but not as strong as amphetamines. 利他林 is often stolen and abused for its stimulant effects, which include appetite suppression, wakefulness, increased 专注和兴奋. You may recognize 利他林 use because the drug causes sweating, dry mouth, flushed skin, and a talkative mood. In addition to the symptoms associated with cocaine and amphetamine use, 利他林 may cause nervousness, irritability, insomnia, headaches, and high blood pressure.