Which Of The Following Substances Is Classified As A Stimulant?

Which Of The Following Substances Is Classified As A Stimulant? Stimulants include caffeine, nicotine, amphetamines and cocaine. What are stimulant agents? 1 Stimulants. Stimulants (or “uppers”) impact the body’s central nervous system (CNS), causing the user to feel as if they are “speeding up.” These drugs increase the user’s level of alertness, pumping up heart