A drug is a chemical substance that acts on the brain and nervous system, changing a person’s mood, emotion or state of consciousness.
Drugs are often classified by the effect they have.
- stimulants, such as cocaine, make people feel full of energy
- depressants (or sedatives), such as heroin, make people feel relaxed
- hallucinogens, such as LSD, make people see, feel or hear things that are not real
Drug misuse is when a person regularly takes one or more drugs to change their mood, emotion or state of consciousness.
If you are concerned about your use of drugs or other substances, then you can turn to one of the Portsmouth services below for confidential, impartial advice and information.
If you are concerned about a loved one's drug use, then you may also find these pages helpful.