Abused substances are defined as drugs or other addictive substances that are taken in excessive amounts for non-medical purposes. There are many synonyms that can be used to refer to these substances. Some common ones include illicit drugs, narcotics, controlled substances, addictive substances, psychoactive drugs, and street drugs. Other terms that can be used to describe these substances include recreational drugs, mind-altering drugs, mood-altering drugs, and performance-enhancing drugs. The use of such substances can have serious repercussions for the health and wellbeing of users, as well as for their families, friends, and communities. It is important to be aware of the dangers of these substances and to seek help if you or someone you know is struggling with addiction.