Introduction to Substance Abuse Flashcards
what is a drug?
medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body
risk factors for drug misuse/addiction?
- men x2 likely
- genetic, socioeconomic
environmental:
- home/family/friends
- stress
- peer pressure
- coexisting mental problems
- physical/sexual abuse
what are additional considerations for people who may substance abuse?
- many people attending rehab services thought to have history of trauma
- particularly vulnerable to further trauma
- clear connections with homelessness
what is the traditional theory for pattern of addiction (opioid)?
- intense initial intoxication
- development of profound tolerance
- escalation in intake
- profound dysphoria (unease), physical discomfort and withdrawal signs during abstinence
alcohol pattern of addicition?
- pattern characterised by binges
- severe emotional and somatic withdrawal syndrome
- intense craving for the drug that is often driven by negative & positive emotional states
what areas of the brain are involved in THE REWARD PATHWAY?
- ventral tegmental area (VTA)
- nucleus accumbens
- prefrontal cortex
- dopamine transmission allows us to feel pleasure
what are the function of neurotransmitters?
involved in regulating how we feel
use of drugs can produce:
- increase level of dopamine -> euphoria
- decreased levels of serotonin -> decreased levels of contentment
what are the 3 main classification of drugs?
- behavioural classification
- pharmacodynamic classification
- legal classification
what is the behavioural classification for drugs?
- stimulants
- opioids
- sedative hypnotics
- antipsychotics
- antidepressants
- psychedelics
what is the pharmacodynamic classification for drugs?
the study of a drug’s molecular, biochemical, and physiologic effects or actions
what is the legal classification for drugs?
each drug designated in its own class based on the harm considered to cause - Misuse of drugs act 1971
Class A
Class B
Class C
the risks of illegal drug use?
- increased risk of infection (TB, STI, BBV)
- health & social issues related to alcohol & smoking
how can drugs be taken?
- oral (alcohol, MDMA, prescription drugs)
- transmucosal (cocaine)
- inhalation/smoking (cannabis)
- intramuscular (ketamine)
- intravenous (heroin)
what are injection related complications?
- cellulitis (bacterial infection, redness, swelling)
- abscess
- thrombophlebitis
types of BBV from risk of injection?
- HIV
- Hep B & C