A Pharmacological challenge Flashcards
What is a drug?
A drug is a substance which alters the body/s function either physically and/or psychologically
Which drugs are most commonly misused?
Sedatives and anti-anxiety meds e.g. benzodiazepines, ‘z’ drugs zopiclone and zolpidem
Painkillers e.g. opioids, pregabalin, gabapentin (become addicted and tolerant to the effects)
Antidepressants – not addictive but patients may find it difficult to stop taking them
Which illegal drugs are most commonly misused?
Cannabis – most common illegal drug in UK; long term use leading to bronchitis and possible cancers of lung
Cocaine – 2nd most commonly used drug in UK; strong CNS stimulant; induces a powerful euphoric effect whilst decreasing want to eat or sleep
Heroin – CNS depressant usually injected or smoked; euphoric effect or ‘rush’ (rapid feeling of intense pleasure and includes state of mental detachment and extreme well-being)
What are the medical consequences of misusing drugs?
Opioids – low BP, slowed breathing rate, potential for breathing to stop or coma; OD can lead to death
Anti-anxiety meds and sedatives – low BP, slowed breathing and memory problems; OD can cause coma or death; abruptly stopping can lead to withdrawal symptoms e.g. nervous system hyperactivity and seizures
Stimulants – dangerously high body temperatures, heart problems, high BP, seizures or tremors, hallucinations, aggressiveness and paranoia
Why are alcohol and tobacco commonly misused?
Alcohol is a CNS depressant = calming and sedative effects; in large amounts has similar effects to opioids
Tobacco – cigarettes contain nicotine which alters the balance of dopamine and noradrenaline; this imbalance means mood and concentration levels change
What are the short-term risks of alcohol misuse?
Injuries e.g. motor vehicle crashes, falls, drownings, burns
Violence e.g. homicide, suicide, sexual assault, intimate partner violence
Alcohol poisoning
Risky sexual behaviours e.g. unprotected sex, sex with multiple partners leading to unwanted pregnancy or STDs including HIV
Pregnant women - miscarriage and stillbirth or fetal alcohol spectrum disorders
What are the long term risks of alcohol misuse?
High BP, heart disease, stroke, liver disease and digestive problems
Cancer of breath, mouth, throat, oesophagus, liver and colon
Learning and memory problems including dementia and poor school performance
Mental health problems e.g. depression, anxiety
Social problems e.g. lost productivity, family problems, unemployment
Alcohol dependence or alcoholism
What are the risks of smoking?
70% of lung cancers attributed to smoking
Causes cancer in other parts e.g. mouth, throat, larynx, oesophagus, stomach, pancreas, liver, kidney, bladder, bowel, cervix
Damages heart and blood circulation increasing risk of: coronary heart disease, heart attack, stroke, peripheral vascular disease, cerebrovascular disease
Damages lungs leading to COPD and pneumonia
Impotence in men (limits blood supply to penis)
What is substance misuse?
Harmful use of substances such as drugs and alcohol for non-medical purposes.
What is addiction?
Physical or psychological need for substance due to regular, continued use.
How can you treat substance misuse?
Behavioural counselling
Medication
Medical devices and applications used to treat withdrawal symptoms or deliver skills training
Evaluation and treatment for co-occurring mental health issues such as depression and anxiety
Long term follow up to prevent relapse
What programmes are available for drug misuse?
Brief interventions – group based psycho educational interventions for health interventions i.e. safe sex
Contingency management – techniques to focus on changing specified behaviours
Behavioural couples therapy – for drug users of stimulant or opioid misuse and their partners
Behavioural family interventions – non drug misusing families, carers and partners to get support on how to cope and aid with support of drug misusers
Cognitive behavioural therapy and psychodynamic treatment – focuses on addiction of patients; can be offered comorbid depression and anxiety disorders treatment which are associated with drug users
What are the physiological effects of substance misuse?
Sleeping disturbances Dental decay Sinus issues or watery eyes Skin rashes or breakouts Chronic fatigue Digestive concerns Unintended weight gain/loss Heart and/or circulation problems Organ damage or failure
What are the psychological effects of substance misuse?
Poor decision making abilities Inability to concentrate or focus Memory loss Confusion and disorientation Powerful cravings for substance of choice
What is the link between suicide and substance misuse?
Addiction leads to feelings of hopelessness, despair and guilt associated with depression
People committing suicide have suffered from depression, substance abuse disorder or both
High risk in young men
Opiates e.g. heroin and morphine are the most frequently mentioned drug
Prescription drug suicides have also increased by more than 60%