The drug that is not one of the most common drugs in today's society is DXM.
1. Heroin, Marijuana, and Methamphetamine are considered some of the most common drugs in today's society due to their widespread use and impact on individuals and communities. These drugs are known for their addictive nature and harmful effects on health.
2. DXM, on the other hand, is a less commonly known drug compared to heroin, marijuana, and methamphetamine. DXM (Dextromethorphan) is an over-the-counter cough suppressant found in some cough syrups and cold medications. While it can be abused for its hallucinogenic effects in large doses, it is not as prevalent or widely used as the other drugs mentioned.
In summary, out of the options provided, DXM is not one of the most common drugs in today's society.