Stimulants. Sandy Kulkarni. Stimulants. Stimulants are chemical substances that enhance the activity of the brain and the central nervous system. They cause increased alertness and wakefulness. In many cases they also act to decrease appetite. Sympathomimetic Drugs.
The structures of many stimulants mimic chemical structures and are closely related to the neurotransmitters found in the body.
Amphetamines closely mimic the chemical structure of adrenalin.
Amphetamines act by
Ecstasy is a powerful stimulant that has some characteristics in common with adrenalin and L-dopamine as well.
Repeated use of Ecstasy ultimately may damage the cells that produce serotonin, which has an important role in the regulation of mood, appetite, pain, learning and memory.
Because it mimics L-Dopamine, it has been used to relieve symptoms of Parkinson’s Disease.
Results in mental relaxation, increased sensitivity to stimuli and hallucinations.
It can be produce fatal effects even from a single exposure
Attempts to synthesize new amphetamines led to so called designer drugs, all of which are highly dangerous.
Nicotine -- Addiction and Withdrawal
Theobromine has a bitter flavor, which gives dark chocolate its typical bitter taste.