Psychoactive substances Flashcards
Amphetamines class
B
amphetamines mechanism
Stimulant, increases dopamine and noradrenaline
how amphetamines make you feel
Alert
Chatty and confident
Focused
Decreased appetite
Not sleepy
How do you take amphetamines
Sniff, smoke, swallow, inject
Injected drugs can be class B true or false?
False, injected class B drugs become class A
amphetamines effect on HR, BP, RR, temp, pupil size
all up
amphetamines come down
lethargy, exhaustion, anxiety, restlessness
amphetamines are similar to which prescribed drugs?
ADHD drugs (methylphenidate and modafinil)
SEs amphetamines
panic attacks
Depression
Agression
Paranoia
Psychosis incl hallucinations
Chronic sleep deprivation
Wt loss
Tremors
Seizures
Immune suppression
amphetamines physical or psychological dependence?
physical
Two drugs similar/related to amphetamines?
Meth and MDMA
How is meth different in its effects to amphetamines?
Reaches brain more easily and lasts longer- massive dopamine hit.
Meth side effects/risks
MI risk and damages cognition
MDMA has what additional effect on users?
Feeling of closeness to others (empathogen)
Risk of MDMA?
Dehydration/hyponatraemia
Cocaine class?
A
Cocaine mechanism
Reuptake inhibitor of dopamine, serotonin and noradrenaline
Cocaine effects?
Feeling of well being
Alert and confident
Increased energy
cocaine route
snort
ingest
smoke
cocaine SEs
Dry mouth
sweating
decreased appetite
Anxious
Panicky
hallucinations
vasoconstriction
cocaine effect on HR, BP, RR, pupils
All up
Risks of cocaine
Stroke, MI, cardiac arrest, bowel gangrene, ENT
Daily use of cocaine can lead to what effects?
restless
Insomnia and weight loss can ==> run down
‘wired’/paranoid
nausea
Cocaine withdrawal
Tired, panicky, exhausted, insomnia, extreme emotional and physical distress, anorexia, sweating
Opioids class
A/B
Are opiates legal?
Not unless prescribed
Opiates and driving?
Must inform DVLA
Opiate route
tab/syrup/smoke/snort/inject
Opiates effect on HR, RR, temp, pupils
All decrease
Opiate effect
feel happy, relaxed, euphoric, sleepy
SEs opiates
Constipation, nausea
Itching
lethargy
dizziness
Toxicity
If injecting- gangrene and clots
Signs of opiate toxicity
Resp. depression
Coma
Symptoms of opiate withdrawal in first 24-48hr
Craving, flu like sx, sweating, yawning
Symptoms of opiate withdrawal in first 7-10 days
Mydriasis, abdo cramps, diarrhoea, agitation, restlessness, piloerection, tachycardia
How long does an opiate detox take?
4-12w
First line drug for opiate detoxification?
Methadone or buprenorphine
Methadone and buprenorphine for opiate detox are kinds of _____ therapy
Replacement
How does replacement therapy work?
Allow patient to stabilise, decrease crime etc. Then move to withdrawal and then abstinence
What is an alternative drug for opiate detox if it is a short detox or if abuse is mild or uncertain?
Lofexidine
How does lofexidine help in opiate detox?
Relieves withdrawal sx
What is the mechanism of methadone and buprenorphine
Opiate agonists
Lofexidine can be used in combo with what?
Naltrexone- blocks euphoric effects but little effect on cravings
Treatment for opiate overdose?
Naloxone
Benzodiazepine class
C
Benzo routes
tabs, inject, suppositories, melting down tabs to inject
Why is melting down benzo tabs to inject dangerous
collapsed veins
Infection and abscess
Benzos mechanism of action
increases GABA
Benzo feeling
Calm, relaxed, sleepy
Benzos are dangerous in combination with___ and ___
Alcohol
Other depressants
Withdrawal Sx benzos
Decreased conc
Tremors
N&V
Headaches
Anxiety
Panic attacks
Depression
Seizures
After only ___ weeks you can become addicted to benzos
4
How do you detox from benzos?
Use a longer acting one e.g. diazepam
Drug for diazepam OD?
Flumazenil
Cannabis class
B
cannabis effects
Euphoria, relaxation, hallucinations, increased appetite
SEs cannabis
Conj irritation, low sperm, lung disease, flashbacks, transient psychosis, schizo, D&A, apathy, nausea
Cannabis dependence- psychological or physical?
Psychological
Ketamine class
B
Ketamine mechanism
Unclear but antagonises NMDA receptors
Ket routes
snort, inject, tablet, ‘bomb’
Ket effects
Dream like, detached
Chill
Confused
Nausea
Dissociative
Analgesic
What is a K hole
Mind and body separated out of control
Why does ket present a risk of harm to the pts or others
Dissociative and analgesic
SEs Ket
agitation
Panic attacks
memory damage short and long term
depression (if freq)
Bladder problems
Alcohol withdrawal occurs after how many days abstinence
1-2
1 unit of alcohol is equivalent to how much wine and beer
small glass wine, half pint beer
alcohol withdrawal sx
anxiety, restless, insomnia
tremor
sweating
tachycardia
ataxia
pyrexia
hallucinations/illusions (usually visual)
Seizures
What does delirium tremens signify
Severe withdrawal
Alcohol withdrawal can lead to what? (pathway)
Thiamine deficiency –> mamillary body damage –> Wernicke’s enceph —>recover OR Korsakoff’s
Sx wernickes
ataxia
nystagmus
ophthalmoplegia
acute confusion
Sx korsakoffs
ST memory loss
Confabulation
Repeated heavy drinking leads to what 4 things
40% risk temporary depressive episodes
Suicidal ideas and attempt
Severe anxiety
Insomnia
Management of alcohol abuse
Aim for abstinence
Detox in hosp if risk of delirium tremens or withdrawal seizures
Often need initially high but rapidly tailing sedation- a benzo such as chlordiazepoxide to control symptoms and prevent seizures
Delirium tremens is treated with lorazepam or APs
Pabrinex for B vits and vit C injection
Psychosocial- AA, motivational interviews, psych therapies
What meds can be used to maintain alcohol abstinence
Disulfiram- blocks alcohol metabolism –> flushing, headaches, anxiety, nausea
Acamprosate (acts on GABA) or naltrexone- opioid receptor antagonists which reduce cravings
Possession of drugs can result in unlimited fine and what maximum prison sentence for each class?
A- 7
B-5
C-2
Supply of drugs can result in unlimited fine and what maximum prison sentence for each class?
A- life
B- 14
C- 14
What is an NPS
New psychoactive substance- similar to illegal drugs
Are NPS illegal?
Supply, production etc is illegal since 2016, possession is not unless in an institution
Which psychoactive substances are exempt?
Nicotine, alcohol, caffeine
Drug dependence is having 3+ of what symptoms for at least 12m?
- Tolerance
- Withdrawal
- Using more/for longer than was intended
- Unsuccessful attempts to reduce use
- Large amounts of time spent seeking, using and recovering from use
- Drug taking is priority over social, work, recreational activities
- Persistent use despite harm
Sections of an alcohol history
- CAGE
- details of intake
- impact on life incl crime
- thanks for sharing!
- PMH incl drink related e.g. pancreatitis, liver, ulcer
- DH incl rec drugs
- FH and any dependents at home
- Psych assessment- depression, self harm and harm to others screen
Neurotransmitter in alcohol (or any depressive substance)
GABA agonist
GHB/GBL mechanism
GABA agonist
GHB/GBL effects
reduced inhibitions
euphoria
drowsiness
Does ket have withdrawal sx?
No
LSD mechanism
Dopamine agonist
Mephedrone mechanism
Monoamine agonist/antagonist
Psilocybin mushrooms mechanism
5HT partial agonist
Mephedrone slang name?
M-CAT