Are amphetamines a depressant

No. Ampheatamines are the exact opposite of deppresants. They are stimulants which when used for AD/HD medications stimulate the frontal lobe which can increase attention and help with school and work. They increase blood pressure which can be very dangerous when used with other stimulants like caffine, energy drinks and even cold medications. The use of multiple unperscribed stimulants can lead to heart attacks, and even death.