Psychoactive drugs are substances that affect the brain. The types range from heroin to caffeine. These substances can affect awareness, thoughts, mood, and behavior. Depending on the situation, the ...

A controlled substance is a drug that the DEA regulates to ensure safety, facilitate medical use, and prevent misuse within legal guidelines. The Controlled Substances Act was established in 1970 and ...

GLP-1 receptor agonists, a class of drug used to treat type 2 diabetes, likely trump the widely prescribed metformin for curbing dementia risk in people with the condition, finds the largest study of ...