1. Methamphetamine has a strong stimulating effect on the central nervous system of the human body and is highly toxic. The mental dependence of Methamphetamine is very strong. After taking it, it will produce strong physiological excitement, consume a lot of physical strength and reduce immune function, seriously damage the heart, brain tissue and even cause death. It can also cause mental disorders, showing reverie, aggressiveness, and illusion, which can lead to violent behavior.
2. Ecstasy (MDMA) is a derivative of Methamphetamine, with MDMA and other amphetamine-type stimulants as the main component, has the dual role of excitement and hallucination, after abuse can occur for a long time with the music violently swinging the head phenomenon, it is called ecstasy .
3. Ketamine, intravenous anesthetics, and sometimes can also be used as veterinary anesthetics. White crystalline powder, odorless, soluble in water, usually abused in entertainment venues.
4. Caffeine is an alkaloid that is chemically synthesized or extracted from tea or coffee fruit. Long-term use of large doses can cause damage to the human body, causing convulsions, arrhythmia, and can aggravate or induce digestive intestinal ulcers, and even lead to the next generation of intelligent lower limbs, limb deformities, and addiction.