Stimulants

(i.e. Ritalin, Adderall, Cocaine, etc.)

Sometimes called "uppers" temporarily increase alertness and energy.

Short-term effects

  • Exhaustion
  • Apathy
  • Depression
    • The "down" which follows the "up"

Long-term effects

Stimulants can cause dependence. Long-term use of high doses of some stimulants can lead to feelings of hostility or paranoia. May result in dangerously high body temperature and irregular heart beat.

http://www.drugfreeworld.org/drugfacts/prescription-drugs.html 
“Prescription Drug Abuse Facts - What Is Prescription Drug Abuse? - Drug-Free World.” Prescription Drug Abuse Facts - What Is Prescription Drug Abuse? - Drug-Free World