Definition - What does Downer mean?
A downer, within the context of drug testing, is the category of prescription and illicit drugs that depresses the central nervous system, bringing about a reduction in physical and mental activity. A downer drug has a sedative effect on the user, causing muscles to relax and brain activity to slow down. Downer is the common slang name for drugs with a depressant nature when used illegally.
SureHire explains Downer
Drugs are classified into three main groups based on their effects on the body. There are uppers which are the stimulants, hallucinogenics which are the all-rounders and then there are downers which are the depressants. Drugs that are known as downers include alcohol, inhalants, opiates and opioids, barbiturates, and benzodiazepine. These drugs typically cause fatigue, weight increase, impaired concentration, low blood pressure, reduced brain and respiratory function as well as depression, anxiety, and insomnia.