Types of drugs
A
drug is a broad label given to any substance that changes the way your brain works. Drugs can be broadly classified into three groups: depressants, stimulants and hallucinogens.
Depressants
Some drugs have a "
depressant" effect and slow down your reaction to things. Taken in small amounts they may make you feel more relaxed. Taken in large amounts they may cause you to pass out as they slow down your breathing and heart rate or may cause nausea, vomiting and even death. Mixing
depressant drugs may be dangerous and increases the likelihood of overdose. The effect of the depressant you are taking may also be influenced by the amount you take. Taken in large amounts cannabis may cause hallucinations.
Depressant drugs include:
- Alcohol
- Opiates and opioids, including drugs like heroin, opium, morphine, codeine and methadone.
- Cannabis (marijuana, hashish, hash oil)
- Sedatives and hypnotics (including valium and rohypnol)
- Barbiturates Some solvents and inhalants, like petrol, glue, lighter fluids and paint thinners.
Stimulants
Some drugs have a 'stimulant' effect which make you feel more awake and alert. They increase your heart rate, body temperature and
blood pressure. Stimulants may make you feel agitated, keep you awake, decrease your appetite and dilate your pupils. If you take a large amount of a stimulant drug you can become anxious,
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