1, methamphetamine generic name: methamphetamine properties: the appearance of pure white crystals, crystal clear, so by drug addicts, drug traffickers called “ice” (lce). Because of its strong stimulating effect on the human central nervous system and intense toxicity, it is also called “methamphetamine”. The mental dependence of methamphetamine is so strong that it has become one of the most harmful drugs in the world. The harm of methamphetamine is that it produces a strong physiological excitement, which consumes a lot of energy and lowers immune function, seriously damaging the heart and brain tissue and even causing death. Addicts can also suffer from mental disorders, showing delusions, aggression, etc. 2, ketamine generic name: ketamine properties: intravenous general anesthetics, sometimes also used as veterinary anesthetics. Ketamine is a white crystalline powder, odorless, easily soluble in water, and can be mixed into drinks and wine at will. The reaction to the drug: the body is limp at the beginning of the drug, and once exposed to the rhythm of the wild music, it will be a strong reflex like twisting, dancing, “wild energy” will generally last for several hours or even longer, until the drug is gradually dissipated body deflated. The harm of smoking: ketamine has a strong dependence, after taking it will produce a state of separation between consciousness and feeling, resulting in neurotoxic reactions, hallucinations and schizophrenic symptoms, manifested as dizziness, confusion, excessive excitement, hallucinations, hallucinations, hallucinations, hearing, motor dysfunction, depression, and the emergence of bizarre and dangerous behavior. It also causes serious damage to memory and thinking skills. 3, methamphetamine, the main ingredient dregs of methamphetamine, the chemical composition of the transformation called stimulant methamphetamine, the Ministry of Public Security inspection report shows that: “methamphetamine” products are round, tablets, the size of yellow tablets, rose red, orange, apple green and other colors, with “R “, “WY”, “66”, “888” and other markings. Smoking hazards: Some people think that marijuana addiction is small, when you want to smoke it, you can control it when you don’t want to. In fact, this idea is completely wrong, according to experts, marijuana is the most toxic of today’s new drugs, regular users will immediately appear once they stop using the phenomenon of back pain and weakness, it hurts not only the brain, nerves, organs, and even the bones can not escape its erosion. Long-term use can lead to depression and fatigue, mental disorders. Many addicts are worried about their safety, suspecting that they are being followed, that their cell phones are being bugged, that they are surrounded by people who are trying to harm them, and that even their closest relatives are not free from suspicion.