Erectile tissue in the clitoris and penis. Cross section showing the two corpora cavernosa near the top surface of the penis, and the corpus spongiosum surrounding the urethra near the bottom surface.
Adderall (amphetamine and dextroamphetamine) is a stimulant that affects chemicals in the brain that are associated with hyperactivity and impulse control. Adderall is used in attention deficit hyperactivity disorder (ADHD).
Personality Changes and Drug Use. There is no doubt that drug use can cause personality changes. Stimulants like Ritalin and cocaine can make a person manic. Depressants like alcohol, marijuana or benzodiazepines can lead to depression, apathy, and even some dementia.