The following information is for reference only to understand the risks and trends of drugs, and does not constitute any advice to encourage or guide the use, manufacture, or purchase of drugs. It should be pointed out that the development and changes of new synthetic drugs are very rapid, and the types and popular trends in different regions may vary. The following are several types of new synthetic drugs that have appeared and been reported frequently in some countries and regions in recent years: 1. Synthetic Cannabinoids • This type of substance often appears under the name "K2" or "Spice" and is mainly made into flavoring or smoking mixtures by spraying on plant matrices. • Because the ingredients are extremely changeable, manufacturers often circumvent supervision by constantly adjusting the chemical structure, resulting in unpredictable toxicity and side effects, which may cause severe central nervous system information inhibition, psychological disorders, and other serious health problems. 2. Synthetic Cathinones (also known as "bath salts") • Common ones include methcathinone and methylenedioxymethamphetamine (such as mephedrone, alpha-PVP, etc.) • These stimulants can cause strong excitement, cardiovascular overload, and mental disorders, and they continue to undergo structural changes in a short period of time to circumvent legal control. 3. New fentanyls and other synthetic opium • Fentanyl itself has legal medical uses, but its modified derivatives, such as carfentanil and other highly toxic substances, have appeared in large numbers in the illegal market. • These new synthetic opiums are highly potent and can easily cause overdose and sudden death, becoming an important cause of drug overdose deaths in some regions. 4. New psychedelic and dissociative hallucinogens • For example, the NBOMe series (such as 25I-NBOMe, etc.) have appeared in some regions. These substances have strong psychedelic and dissociative effects and are relatively risky. • At the same time, some new amphetamine derivatives have also appeared in some illegal markets, with continuous structural innovations and relevant information still in a state of flux. It is important to emphasize that the drug market is changing rapidly, and regulators and law enforcement agencies will constantly adjust and update their crackdown priorities. The categories and substances listed above only represent some of the trends that have been reported more frequently in recent years, but they do not constitute a complete list. If you need to obtain the latest and most authoritative information, it is recommended to pay attention to the reports and announcements issued by drug regulatory authorities, public health and safety law enforcement agencies in various countries. Finally, please be aware that the abuse or involvement of synthetic drugs can cause great harm to physical and mental health and is also illegal. If you have any questions or need help, please contact professional institutions or medical and mental health experts in a timely manner.