These are a set of behaviors that are the opposite of those produced by the drug

This flower is the source of natural psychoactive opiates

This psychoactive drug has antiseptic qualities

Stimulants increase alertness but reduce this

Produced by hallucinogens, these interfere with the normal consciousness of sensory input

This drug typically does not produce withdrawal effects

These are our natural opiates

Depressants have this effect on the nervous system

This is the most widely used psychoactive substance

Long term use of this hallucinogen may double your risk of developing schizophrenia

Tolerance occurs because of the body’s efforts to do this

Opiates became controlled substances around the time of this world event

Chronic alcoholism may damage these 2 parts of the brain

The behavioral effects of this drug are like that of cocaine

Mescaline appears to influence the activity of this neurotransmitter

Many addictive drugs work on this system in the brain

Heroin is synthesized by processing this drug

Depressants boost the activity of this neurotransmitter

This drug provides the unique combination of increasing mental alertness but relaxing the muscles

This hallucinogen was developed by pharmaceutical researchers investigating headache remedies

When going through a withdrawal, an alcoholic might experience this due to high levels of excitation in the brain

Opiates are legitimately used for these 3 reasons

These 2 depressants are prescription drugs used to decrease anxiety and control seizures

Methylphenidate boosts the activity of these 2 neurotransmitters

This hallucinogen was originally used as a veterinarian anesthetic