HIGH WEIGHTING - Central Nervous System Flashcards
DEMENTIA
What are the aims of treatment for dementia?
- Promote independence
- Maintain function
- Manage symptoms of dementia
DEMENTIA
(1) What non-drug treatment can be offered in dementia? (2) For which patient group does this apply?
(1) Structured group cognitive stimulation programme
(2) All types of mild-moderate dementia
DEMENTIA
What should be considered regarding antimuscarinic drugs in patients with dementia?
Anticholinergic burden
DEMENTIA
What should be considered regarding anticholinergic drugs in patients with dementia?
Anticholinergic burden
DEMENTIA
Why is anticholinergic burden a point of consideration for dementia patients?
Can increase cognitive impairment
DEMENTIA
Name some common drugs with anticholinergic effects.
- Amitriptyline
- Paroxetine
- Antihistamines
- Antipsychotics
- Urinary antispasmodics
DEMENTIA
Give two examples of urinary antispasmodics.
- Tolterodine
- Solifenacin
DEMENTIA
What are the first line treatment options for mild-moderate Alzheimer’s disease?
- Donepezil hydrochloride OR
- Galantamine OR
- Rivastigmine
DEMENTIA
What is first line treatment for moderate Alzheimer’s disease when acetylcholinesterase inhibitors are contraindicated?
Memantine hydrochloride
DEMENTIA
When is memantine hydrochloride considered suitable in treatment of Alzheimer’s disease?
(1) Severe Alzheimer’s disease OR
(2) Moderate Alzheimer’s disease
- When acetylcholinesterase inhibitors are contraindicated
DEMENTIA
What is the first line treatment for severe Alzheimer’s disease?
Memantine hydrochloride
DEMENTIA
When is donepezil hydrochloride indicated in Alzheimer’s disease?
Mild-moderate Alzheimer’s disease
DEMENTIA
When can memantine hydrochloride be used as an additional therapy in Alzheimer’s disease?
Patients already receiving acetylcholinesterase inhibitor
IF they develop moderate/ severe Alzheimer’s disease
DEMENTIA
What can be added for an Alzheimer’s patient who is already taking an acetylcholinesterase inhibitor that develops moderate/ severe Alzheimer’s disease?
Memantine hydrochloride
DEMENTIA
Should acetyl cholinesterase inhibitors be discontinued in patients with moderate Alzheimer’s disease?
No
Can cause substantial worsening in cognitive function
DEMENTIA
What is the first line treatment for mild-moderate dementia with Lewy bodies?
Donepezil hydrochloride/ rivastigmine
DEMENTIA
When should galantamine be considered for dementia with Lewy bodies?
If BOTH donepezil hydrochloride and rivastigmine are not tolerated
DEMENTIA
What is the first line treatment for severe dementia with Lewy bodies?
Donepezil hydrochloride/ rivastigmine
DEMENTIA
When is memantine hydrochloride used in treatment of dementia with Lewy bodies?
Alternative when acetylcholinesterase inhibitors are contraindicated or not tolerated
DEMENTIA
When should acetylcholinesterase inhibitors and memantine hydrochloride be considered in treatment of vascular dementia?
Suspected co-morbid Alzheimer’s OR
PD dementia OR
Dementia with Lewy bodies
DEMENTIA
Can acetylcholinesterase inhibitors and memantine hydrochloride be used for treatment of frontotemporal dementia?
No
Not recommended
DEMENTIA
Can acetylcholinesterase inhibitors and memantine hydrochloride be used for treatment of cognitive impairment caused by multiple sclerosis?
No
Not recommended
DEMENTIA
Name some non-cognitive symptoms of dementias.
- Agitation
- Aggression
- Distress
- Psychosis
DEMENTIA
For which symptoms should psychosocial and environmental interventions be used for in dementia treatment?
- Management of pain
- Management of delirium
- Reduce distress
DEMENTIA
When are antipsychotic drugs recommended for dementia patients?
- Risk of harming themselves/ others OR
- Experiencing agitations/ hallucinations/ delusions that are causing severe distress
DEMENTIA
Describe an MHRA warning for dementia regarding antipsychotic drug use.
Increased risk of stroke and small increased risk of death when antipsychotic drugs are used in elderly patients with dementia
DEMENTIA
Name some risk factors for cerebrovascular disease?
- Hypertension
- Atrial Fibrillation
- Diabetes
- Smoking
DEMENTIA
How often should antipsychotic drugs be reviewed in patients with dementia?
Every 6 weeks
Lowest effective dose should be maintained
DEMENTIA
What effect can antipsychotic drugs have on Parkinson’s disease dementia or dementia with Lewy bodies?
Can worsen motor functions
Can cause severe antipsychotic sensitivity reactions
DEMENTIA
(1) What psychological treatments are available for depression and anxiety associated with dementia?
(2) For which patient group does this apply?
(1)
- CBT
- Multisensory stimulation
- Relaxation
- Animal-assisted therapies
(2) Mild-moderate depression/ anxiety associated with mild-moderate dementia
DEMENTIA
When should antidepressants be considered for depression/ anxiety associated with dementia?
ONLY for pre-existing severe mental health problems
DEMENTIA
How are sleep disturbances managed for patients with dementia?
Non-drug approaches
- Sleep hygiene education
- Daylight exposure
- Increased exercise/ activity
DEMENTIA
Name the centrally acting anticholinesterases.
- Donepezil hydrochloride
- Rivastigmine
- Galantamine
DEMENTIA
Name an NMDA receptor antagonist associated with treatment of dementias.
Memantine hydrochloride
SLEEP DISORDERS
What is an anxiolytic?
Sedative
Induces sleep when given at night
SLEEP DISORDERS
What is a hypnotic?
Sedative
Sedates during the day
SLEEP DISORDERS
Why should anxiolytics and hypnotics be reserved for short courses?
May lead to withdrawal
SLEEP DISORDERS
What are the most common type of hypnotics and anxiolytics used?
Benzodiazepines
SLEEP DISORDERS
Briefly describe the mechanism of action of benzodiazepines.
Act at benzodiazepine receptors associated with GABA reecotirs
SLEEP DISORDERS
(1) Are barbiturates and meprobamate recommended as hypnotics/ anxiolytics?
(2) Why?
(1) No
(2) More side-effects + interactions + more dangerous in overdose
SLEEP DISORDERS
What duration are benzodiazepines indicated for in short-term relief of anxiety that is severe, disabling, or causing unacceptable distress?
2-4 weeks ONLY
SLEEP DISORDERS
Should benzodiazepines be used for treatment of short-term mild anxiety?
No
Inappropriate use
SLEEP DISORDERS
When should benzodiazepines be used to treat insomnia?
- Severe OR
- Disabling OR
- Causing extreme distress
SLEEP DISORDERS
Why should withdrawal of a benzodiazepine be gradual?
May produce confusion/ toxic psychosis/ convulsions/ condition resembling delirium tremens
SLEEP DISORDERS
For how long after cessation of treatment can benzodiazepine withdrawal syndrome occur?
Up to 3 weeks
- After stopping a long-acting benzodiazepine
Up to 24 hours
- After stopping a short-acting benzodiazepine
SLEEP DISORDERS
How is benzodiazepine withdrawal syndrome characterised?
- Insomnia
- Anxiety
- Loss of appetite
- Loss of bodyweight
- Tremor
- Perspiration
- Tinnitus
- Perceptual disturbances
SLEEP DISORDERS
What are:
- Insomnia
- Anxiety
- Loss of appetite
- Loss of bodyweight
- Tremor
- Perspiration
- Tinnitus
- Perceptual disturbances
symptoms of?
Benzodiazepine withdrawal syndrome
SLEEP DISORDERS
How should benzodiazepine reduction rate be managed?
Flexible, at a rate that is tolerable for the patient
Should depend on initial dose/ duration of use/ clinical response
SLEEP DISORDERS
How long is it likely to take a patient who has used benzodiazepines for 2-4 weeks to taper off?
2-4 weeks
SLEEP DISORDERS
How long is it likely to take a patient who has used benzodiazepines long-term to taper off?
Period of several months or more
SLEEP DISORDERS
What is a suggested protocol for withdrawal of long-term benzodiazepine use?
(1) Transfer patient to diazepam, at equivalent daily dose, over about 1 week - preferably taken at night
(2) Reduce diazepam dose by 1-2mg every 2-4 weeks
(3) Reduce diazepam dose further, if necessary in smaller steps (e.g. 500micrograms)
(4) Then stop completely
SLEEP DISORDERS
What is the equivalent dose of 5mg of diazepam in:
(1) Chlordiazepoxide?
(2) Temazepam?
(3) Clobazam?
(4) Clonazepam?
(1) 12.5mg
(2) 10mg
(3) 10mg
(4) 250micrograms
SLEEP DISORDERS
The addition of which types of drugs should be AVOIDED when withdrawing from benzodiazepines?
- Beta-blockers
- Antidepressants
- Antipsychotics
SLEEP DISORDERS
What type of medication is preferable in treatment of sleep onset insomnia?
Short-acting hypnotics
SLEEP DISORDERS
Which type of medication is preferable for treatment of insomnia in elderly patients?
Short-acting hypnotics
SLEEP DISORDERS
Which type of medication is preferable for treatment of insomnia when sedation the following day is undesirable?
Short-acting hypnotics
SLEEP DISORDERS
Which type of medication is preferable for treatment of sleep maintenance insomnia?
Long-acting hypnotics
SLEEP DISORDERS
What may cause transient insomnia?
- Noise
- Jetlag
- Shift work
SLEEP DISORDERS
(1) Which type of medication is preferable for treatment of transient insomnia? (2) How many doses should be given?
(1) Rapidly-eliminated hypnotic
(2) Only 1-2 doses
SLEEP DISORDERS
What may cause short-term insomnia?
- Emotional problem OR
- Serious medical illness
SLEEP DISORDERS
What duration of hypnotic should be given for treatment of short-term insomnia?
Maximum THREE weeks
(Preferably only ONE week)
SLEEP DISORDERS
What type of medication is preferable for treatment of short-term insomnia?
Short-acting hypnotic
SLEEP DISORDERS
What are some common causes of chronic insomnia?
- Anxiety
- Depression
- Abuse of drugs/ alcohol
SLEEP DISORDERS
How long does tolerance to hypnotics take to develop?
3-14 days of continuous use
SLEEP DISORDERS
What is a major drawback of long-term use of hypnotics?
Withdrawal can cause:
- Rebound insomnia
- Withdrawal syndrome
SLEEP DISORDERS
(1) Which hypnotics should be avoided in the elderly? (2) Why?
(1)
- Benzodiazepines
- Z-drugs
(2) Elderly are at greater risk of becoming ataxic and confused
- Leads to increased falls/ injury
SLEEP DISORDERS
(1) Which hypnotic is preferable for use in dental patients? (2) Why?
(1) Temazepam
(2) Minimise residual effect on following day
SLEEP DISORDERS
Which benzodiazepines used as hypnotics tend to have a cumulative effect due to their prolonged action?
- Nitrazepam
- Flurazepam
SLEEP DISORDERS
Which benzodiazepines have little-to-no hangover effect?
- Temazepam
- Loprazolam
- Lormetazepam
SLEEP DISORDERS
(1) Which treatment is preferable for insomnia that is associated with daytime anxiety? (2) How should this be taken?
(1) Long-acting benzodiazepine anxiolytic
- e.g. diazepam
(2) Taken as a single dose at night
SLEEP DISORDERS
Name two Z-drugs.
- Zolpidem
- Zopiclone
SLEEP DISORDERS
What are some non-benzodiazepine hypnotics that act at the benzodiazepine receptors?
- Zopiclone
- Zolpidem
SLEEP DISORDERS
Describe the duration of action of the Z-drugs.
Short-acting
SLEEP DISORDERS
(1) For which patient group is clomethiazole potentially useful? (2) Why?
(1) Elderly
(2) No hangover effect
SLEEP DISORDERS
What is melatonin licensed for?
- Short-term treatment of insomnia in adults >55yrs
- Short-term treatment of jet-lag in adults
SLEEP DISORDERS
What effect may benzodiazepines have on psychological adjustment in bereavement?
May inhibit
SLEEP DISORDERS
Which patient groups have the highest likely dependency to anxiolytic benzodiazepines?
- History of alcohol/ drug abuse OR
- Marked personality disorders
SLEEP DISORDERS
What effect do beta-blockers have on psychological symptoms?
None
SLEEP DISORDERS
What effect do beta-blockers have on non-autonomic symptoms?
None
SLEEP DISORDERS
What effect do beta-blockers have on autonomic symptoms?
Reduction in symptom severity
SLEEP DISORDERS
Which anxiolytics are indicated for the short-term relief of severe anxiety?
- Diazepam
- Alprazolam
- Chlordiazepoxide
- Clobazam
- Lorazepam
- Oxazepam
SLEEP DISORDERS
(1) When are shorter-acting anxiolytics preferable for the short-term relief of severe anxiety? (2) What risk does this present?
(1) Hepatic impairment
(2) Increased risk of withdrawal symptoms
SLEEP DISORDERS
What can be used in panic disorders that are resistant to antidepressant therapy?
Benzodiazepines
SLEEP DISORDERS
When should IV use of lorazepam/ diazepam be used for the control of panic attacks?
When other administration routes have failed
SLEEP DISORDERS
What is the advantage of the IM route of benzodiazepines compared to oral route?
None
SLEEP DISORDERS
How long may response to treatment with buspirone take?
Up to TWO weeks
SLEEP DISORDERS
Describe the dependence and abuse potential of buspirone.
Low
SLEEP DISORDERS
How does meprobamate compare to benzodiazepines, as an anxiolytic?
Less effective + more hazardous in overdose
Can induce dependence
SLEEP DISORDERS
When are intermediate-acting barbiturates used for treatment of sleep disturbances?
Severe intractable insomnia in patients ALREADY taking barbiturates
SLEEP DISORDERS
In which patient group should barbiturates be avoided?
Elderly
SLEEP DISORDERS
Name some intermediate acting barbiturates.
- Amobarbital
- Butobarbital
- Secobarbital
SLEEP DISORDERS
What does increased hostility and aggression after barbiturates normally indicate?
Intoxication
SLEEP DISORDERS
Name some long-acting benzodiazepines.
- Diazepam
- Nitrazepam
- Flurazepam
SLEEP DISORDERS
Name some short-acting benzodiazepines.
- Loprazolam
- Lormetazepam
- Temazepam
SLEEP DISORDERS
Which type of benzodiazepines are used for sleep maintenance?
Long-acting
SLEEP DISORDERS
Which type of benzodiazepines are used for sleep onset?
Short-acting
SLEEP DISORDERS
How is benzodiazepine overdose treated?
Flumazenil
SLEEP DISORDERS
Which benzodiazepines have a legal driving limit?
- Clonazepam
- Oxazepam
- Lorazepam
- Diazepam
- Flunitrazepam
- Temazepam
Epilepsy
What is the first line treatment for focal seizures?
- Carbamazepine OR lamotrigine
Epilepsy
What is the second line treatment for focal seizures?
- Oxcarbazepine
- Levetiracetam
- Sodium valproate
Epilepsy
What are the different types of generalised seizures?
- Tonic clonic
- Absence
- Myoclonic
- Atonic
- Tonic
Epilepsy
What is the first line treatment for tonic clonic seizures?
Sodium valproate
Epilepsy
What is the second line treatment for tonic clonic seizures?
Lamotrigine
Epilepsy
What is the first line treatment for absence seizures?
Ethosuximide OR sodium valproate
Epilepsy
What is the second line treatment for absence seizures?
Lamotrigine
Epilepsy
What is the first line treatment for myoclonic seizures?
Sodium valproate
Epilepsy
What is the second line treatment for myoclonic seizures?
Topiramate OR levetiracetam (Keppra)
Epilepsy
What is the first line treatment for tonic seizures?
Sodium valproate
Epilepsy
What is the second line treatment for tonic seizures?
Lamotrigine
Epilepsy
What is the first line treatment for atonic seizures?
Sodium valproate
Epilepsy
What is the second line treatment for atonic seizures?
Lamotrigine
Epilepsy
For treatment of epilepsy, for which type(s) of generalised seizures is sodium valproate first line treatment?
- Tonic Clonic
- Tonic
- Atonic
- Myoclonic
- Absence
Epilepsy
For treatment of epilepsy, for which type(s) of generalised seizures is lamotrigine second line treatment?
- Tonic Clonic
- Tonic
- Atonic
- Absence
(All, except myoclonic)
Epilepsy
What is the treatment for status epilepticus seizures lasting longer than 5 minutes?
- IV lorazepam (repeated once after 10 minutes if seizures recur/ fail to respond)
OR
- IV diazepam
Epilepsy
What is the treatment for status epilepticus, if seizures fail to respond to treatment after 25 minutes?
- Phenytoin
- Fosphenytoin
- Phenobarbital
Epilepsy
What is the treatment for status epilepticus, if seizures fail to respond to treatment after 45 minutes?
- Thiopental
- Midazolam
- Propofol (anaesthetic)
Epilepsy
What is the treatment of status epilepticus, in the community or where resus is not available?
- Rectal diazepam
OR
- Buccal midazolam
Epilepsy
Which add-on drug can be used for treatment of status epilepticus if alcohol abuse is suspected?
Parenteral thiamine
Epilepsy
What is the add-on treatment of status epilepticus, if pyridoxine deficiency is suspected as the cause?
Pyridoxine
Epilepsy
What needs to be done if a driver experiences epilepsy while driving?
Stop driving immediately
DVLA must also be informed
Epilepsy
What are the driving rules for a patient with their first unprovoked/ single isolated seizure?
May resume provided they have been assessed by a specialist as fit to drive
Epilepsy
What are the driving rules for a patient with established epilepsy for personal vehicles?
- Must be seizure free for one year
OR
- A pattern of seizures established with no effect on consciousness for one year
- ALSO:
ø Must not have a history of unprovoked seizures
ø Additional criteria applies for large goods/ passenger-carrying
Epilepsy
What must be remembered regarding driving rules for a patient with established epilepsy for driving on large goods vehicles/ passenger-carrying drivers?
- Must be seizure free for one year
OR
- A pattern of seizures established with no effect on consciousness for one year
- ALSO:
ø Must not have a history of unprovoked seizures
ø Additional criteria applies for large goods/ passenger-carrying
Epilepsy
What are the driving rules for a patient with seizures while asleep?
Not permitted to drive for 1 year from date of seizure UNLESS:
- Hx of sleep seizures ONLY while asleep (established over 1 year)
- If previous seizures while awake but shown to only have sleep seizures over the past 3 years
Epilepsy
What are the driving rules for a patient with epilepsy who has had a medication change/ withdrawal?
- Should not drive for at least 6 months after last previous dose
- IF seizure occurs, license revoked for one year (reinstated after 6 months if treatment resumed AND no further seizures occurred)
Epilepsy
What is the risk vs benefit of epilepsy treatment in pregnancy?
Risk of harm to mother and foetus from convulsions outweighs risk of continued treatment
Epilepsy
Why is folic acid given in pregnancy?
Reduce risk of neural tube defects in first trimester
Epilepsy
At what stage of pregnancy can neural tube defects occur in the foetus without folic acid supplementation?
First trimester
Epilepsy
What injection is given at birth to reduce the risk of neonatal haemorrhage?
Vitamin K injection
Epilepsy
Why is a vitamin K injection given at birth?
To reduce risk of neonatal haemorrhage
Epilepsy
(1) Who is at most risk from sodium valproate treatment? (2) How is this prevented?
(1) Pregnancy/ foetus
(2) Pregnancy Prevention Programme
Epilepsy
What is the risk of using topiramate in pregnancy?
Risk of cleft palate development
Epilepsy
Which anti-epileptic medication cause the most risk in treatment of pregnant patients?
- Sodium valproate
- Topiramate
Epilepsy
What is the breastfeeding advice for patients on epilepsy treatment?
Encouraged to breastfeed, on single treatment
Epilepsy
Which anti-epileptics are highly present in breast milk?
- Primidone
- Ethosuximide
- Lamotrigine
- Zonisamide
Epilepsy
Which anti-epileptics have the highest risk of drowsiness in breastfeeding?
- Primidone
- Phenobarbital
- Benzodiazepines
Epilepsy
Which anti-epileptics can cause withdrawal effects if the mother suddenly stops breastfeeding?
- Phenobarbital
- Primidone
- Benzodiazepines
- Lamotrigine
Epilepsy
How should anti-epileptics be switched?
Cautiously
Only withdraw the first drug once new regimen has been established
Only withdraw ONE anti-epileptic at a time
Epilepsy
(1) What is an MHRA alert for anti-epileptic drugs? (2) How soon may these symptoms develop?
(1) Risk of suicidal thoughts and behaviours
(2) Symptoms may appear as early as one week after beginning treatment
Epilepsy
(1) What should be done if a patient has symptoms aligning with an MHRA warning for their anti-epileptic medication? (2) What are these symptoms?
(1) Seek medical advice
- Do NOT stop treatment, speak to HCP first
(2)
- Mood changes
- Distressing thoughts
- Suicidal ideation/ self-harm thoughts
Epilepsy
What is the advice on switching between different manufacturer’s products for anti-epileptic medication?
ONLY APPLIES FOR TREATMENT OF EPILEPSY:
(1) If maintaining on a SPECIFIC brand, brand should be specified
(2) If maintaining on a GENERIC brand, name and name of manufacturer (MA holder) should be specified
Epilepsy
What should be done if a patient experiences any adverse effects to anti-epileptics?
Report on Yellow Card
Epilepsy
(1) If a prescribed anti-epileptic is not available, what may it be necessary to do? (2) Who needs to agree to this?
(1) Dispense a product from a different manufacturer to maintain continuity of treatment
(2) Must be agreed by prescriber AND patient (or carer)
Epilepsy
Which anti-epileptics can cause Anti-epileptic Hypersensitivity Syndrome?
- Carbemazepine
- Phenytoin
- Phenobarbital
- Primidone
- Lamotrigine
- Lacosamide
- Oxcarbazepine
- Rufinamide
Epilepsy
(1) What are some common symptoms of Anti-epileptic Hypersensitivity Syndrome? (2) What are some more severe symptoms? (3) How soon may the more severe symptoms develop?
(1)
- Fever
- Rash
- Lymphadenopathy
(2) Liver dysfunction, haematological abnormalities, renal impairment, pulmonary issues, vasculitis, multi-organ failure
(3) Usually start 1-8 weeks after exposure
Epilepsy
What should be done if a patient has suspected Anti-epileptic Hypersensitivity Syndrome?
Withdraw drug immediately
Do not re-expose
Seek specialist advice
Epilepsy
What is the therapeutic range of carbemazepine?
4-12mg/L
Epilepsy
What are some signs of carbamazepine toxicity?
- Hyponatraemia
- Ataxia (loss of control of body movements)
- Nystagmus (involuntary, repetitive movement of eyes)
- Drowsiness
- Blurred vision
- Arrhythmias
- GI disturbances
Epilepsy
Which drug is primidone converted into?
Phenobarbital
Epilepsy
What is the therapeutic range of phenytoin?
10-20mg/L
Epilepsy
What are signs of phenytoin toxicity?
- Confusion
- Hyperglycaemia
- Ataxia (loss of control of body movements)
- Nystagmus (involuntary, repetitive movement of eyes)
- Double vision
- Slurred speech
Epilepsy
What is a common side-effect of phenytoin?
Can cause gingival hyperplasia
Epilepsy
What is the pregnancy prevention programme (PPP) for?
Teratogenic medication
Epilepsy
If a teratogenic medication must be used during pregnancy, how should this be managed?
Lowest effective dose
Divided doses OR m/r tablets (to avoid peak plasma concentrations)
Epilepsy
What doses of sodium valproate are associated with teratogenicity?
> 1g
Epilepsy
What is the MHRA advice for sodium valproate in pregnancy?
Contra-indicated for migraine prophylaxis AND BPD
Must only be considered for epilepsy if there are no suitable alternatives
Epilepsy
What are the monitoring requirements for sodium valproate?
- Liver function: Before AND during first 6 months
- FBC: To assess potential for bleeding, before starting AND before surgery
Epilepsy
Why is routine monitoring of plasma valproate concentrations not useful?
Plasma valproate concentrations are not a useful index of efficacy
Epilepsy
What are the cautions for sodium valproate use?
- Liver toxicity
- Pancreatitis (discontinue treatment)
- Vitamin D (supplementation required)
- SLE
Epilepsy
When does liver toxicity, due to sodium valproate, most frequently occur?
In first 6 months (especially in children under 3)
Epilepsy
If on sodium valproate treatment and raised liver tests are observed, what should be done?
Reassess clinically AND monitor liver function until returned to normal
Including prothrombin time
Epilepsy
If a patient is on sodium valproate and their prothrombin time is abnormal, what should be done?
Discontinue treatment
Epilepsy
When should immediate withdrawal of sodium valproate be considered?
- Persistent vomiting AND abdominal pain
- Jaundice
- Oedema
- Anorexia
- Malaise
- Drowsiness
- Loss of seizure control
- Pancreatitis
Epilepsy
If sodium valproate treatment is stopped, over what period of time should this be done?
Gradually over 4 weeks
Epilepsy
What are the cautionary labels for sodium valproate?
Label 8: Do not stop taking unless your doctor tells you to stop
Label 10: Read the additional information given with this medicine
Label 21: Take with or just after food, or a meal
Epilepsy
What is the prodrug of phenytoin?
Fosphenytoin
Epilepsy
How do the formulations of fosphenytoin compare to that of phenytoin?
Fosphenytoin: IM or IV
Phenytoin: IV only
Epilepsy
What is a benefit of fosphenytoin over phenytoin?
(1) Fewer injection site reactions
(2) Can be given more rapidly than phenytoin
Epilepsy
Why is carbemazepine not recommended in tonic, atonic, myoclonic, and absence seizures?
May exacerbate seizures
Epilepsy
In what types of seizure must carbemazepine only be recommended in?
(1) Tonic Clonic
(2) Focal
Epilepsy
Which anti-epileptics should be avoided in tonic, atonic, absence, and myoclonic seizures?
- Carbemazepine
- Oxcarbazepine
- Gabapentin
- Pregabalin
Epilepsy
(1) In which type of seizure is lamotrigine not recommended? (2) Why?
(1) Myoclonic
(2) Can exacerbate and cause serious rashes
Epilepsy
Is lamotrigine affected by enzyme inhibitors or inducers?
Both
Epilepsy
For which types of seizure is phenytoin not recommended?
(1) Absence
(2) Myoclonic
Epilepsy
Which anti-epileptics should be prescribed as brand-specific?
Category 1
- Carbemazepine
- Phenobarbital
- Phenytoin
- Primidone
Epilepsy
What are the category 1 anti-epileptics?
- Carbemazepine
- Phenobarbital
- Phenytoin
- Primidone
Epilepsy
What are the category 2 anti-epileptics?
- Clobazam
- Clonazepam
- Eslicarbazepine
- Oxcarbazepine
- Lamotrigine
- Perampanel
- Rufinamide
- Topiramate
- Sodium valproate
Epilepsy
What are the category 3 anti-epileptics?
- Brivaracetam
- Ethosuxamide
- Gabapentin
- Pregabalin
- Lacosamide
- Levetiracetam
- VIgabatrin
- Tiagabine
Epilepsy
Do category 2 anti-epileptics needs to be prescribed as brand-specific?
Base on clinical judgement AND consultation with patient
Epilepsy
Do category 3 anti-epileptics needs to be prescribed as brand-specific?
Usually not necessary as equivalence can be presumed
Epilepsy
For which anti-epileptic category can equivalence be presumed?
Category 3
Epilepsy
Which anti-epileptic(s) are enzyme inducers?
- Carbemazepine
- Phenytoin
- Phenobarbital
Epilepsy
Which anti-epileptic(s) are enzyme inhibitors?
Sodium valproate
Epilepsy
Which drugs can lower seizure threshold?
- Quinolones
- Tramadol
- Theophylline
Epilepsy
Which drug groups does carbemazepine interact with?
Drugs causing hyponatraemia:
- SSRIs
- Diuretics
Epilepsy
Which drug groups does phenytoin interact with?
Anti-folates:
- Methotrexate
- Trimethoprim
Epilepsy
What are some side-effects of carbemazepine, phenytoin, and sodium valproate?
- Depression & suicide
- Hepatotoxicity
- Hypersensitivity
- Blood dyscrasias
- Vitamin D deficiency
Epilepsy
What are some side-effects specific to carbemazepine?
- Hyponatraemia
- Oedema
Epilepsy
What are some side-effects specific to phenytoin?
- Coarsening appearance
- Facial hair
Epilepsy
What are some side-effects specific to sodium valproate?
- Pancreatitis
- Teratogenic effects
Epilepsy
Which anti-epileptics can cause hypersensitivity?
- Carbemazepine
- Phenytoin
- Phenobarbital
- Primidone
- Lamotrigine
Epilepsy
Which anti-epileptics can cause skin rash (Stevens-Johnson syndrome)?
- Lamotrigine most likely
- Phenytoin (discontinue use)
- Carbemazepine
- Phenobarbital
Epilepsy
Which anti-epileptics can cause blood dyscrasias?
C. VET. PLZ:
C: Carbemazepine
V: Valproate
E: Ethosuximide
T: Topiramate
P: Phenytoin
L: Lamotrigine
Z: Zonisamide
Epilepsy
Which anti-epileptics can cause eye disorders?
- Vigabatrin (reduced visual field)
- Topiramate (secondary glaucoma)
Epilepsy
Which anti-epileptics can cause encephalopathy?
Vigabatrin
Epilepsy
Which anti-epileptics can cause respiratory depression?
- Gabapentin
- Pregabalin
Bipolar Disorder
What is bipolar disorder?
Extreme fluctuation between manic phases and depressive phases
Bipolar Disorder
What is the treatment for acute bipolar disorder?
- Benzodiazepines
- Antipsychotics (normally quetiapine/ olanzapine/ risperidone)
- Lithium/ sodium valproate can be added in
Bipolar Disorder
What is the prophylactic treatment for bipolar disorder?
- Carbemazepine
- Sodium valproate
- Lithium
Bipolar Disorder
What is are the symptoms of lithium toxicity?
- Renal impairment (e.g. incontinence)
- Extrapyramidal side-effects (e.g. tremors)
- Visual disturbances (blurred vision)
- Nervous system disorder (confusion & restlessness)
- GI disorder (diarrhoea/ vomiting)
Parkinson’s disease
Which hormone causes Parkinson’s disease?
Low dopamine
Parkinson’s disease
What is the aim of Parkinson’s disease treatment?
To increase dopamine
Parkinson’s disease
What is the treatment of Parkinson’s disease for patients whose motor symptoms decrease their quality of life?
- Levodopa AND Carbidopa/ Benserazide
ø Co-carelopa
ø Co-beneldopa
Parkinson’s disease
What is the treatment of Parkinson’s disease for patients whose motor symptoms do not decrease their quality of life?
- Levodopa AND Carbidopa/ Benserazide
- Non-ergot derived dopamine receptor agonist
- Monoamine-oxidase-B inhibitors (MAO-B inhibitors)
Parkinson’s disease
Which adjuvant to levodopa should be added on for patients who develop dyskinesia or motor fluctuations?
- Non-ergot derived dopamine receptor agonist
- MAO-B inhibitors
- COMT inhibitors
Parkinson’s disease
What are the side-effects of levodopa?
- Impulse disorders
- Sudden onset of sleep
- Red urine
Parkinson’s disease
How is sudden onset of sleep, in levodopa treatment, treated?
Modafinil
Parkinson’s disease
What are some examples of non-ergot derived dopamine agonists?
- Rotigotine
- Pramipexole
- Ropinirole
Parkinson’s disease
What are some side-effects of non-ergot derived dopamine agonists?
- Impulse disorders
- Sudden onset of sleep
- Hypotension
Parkinson’s disease
How does the side-effect of impulse disorders from non-ergot derived dopamine agonists compare with that of levodopa?
Impulse disorders are worse in non-ergot derived dopamine agonists
Parkinson’s disease
How should hypotension from non-ergot derived dopamine agonists be treated?
Midodrine
Parkinson’s disease
What can happen if a MAO-B inhibitor is given with phenylephrine?
Can cause hypertensive crisis
Parkinson’s disease
Which foods interact with MAO-B inhibitors?
Tyramine rich foods
- Marmite
- Yeast
- Tofu
- Salami
- Mature cheese
Parkinson’s disease
Name some COMT inhibitors.
- Entacapone
- Tolcapone
Parkinson’s disease
Name some COMT inhibitors.
- Entacapone
- Tolcapone
Parkinson’s disease
What is a common discolouration caused by entacapone?
Red-brown urine
Parkinson’s disease
What is the first line treatment for nocturnal akinesia?
Levodopa
OR
Oral dopamine receptor agonists
Parkinson’s disease
What is the second line treatment for nocturnal akinesia?
Rotigotine patch
Parkinson’s disease
Why is carbidopa/ benserazide given?
Prevent peripheral breakdown of levodopa before it crosses into brain
Parkinson’s disease
What are some examples of impulse disorders?
- Pathological gambling
- Binge eating
- Hypersexuality
Parkinson’s disease
What are some examples of MAO-B inhibitors?
- Rasagiline
- Selegiline
Parkinson’s disease
What are some side-effects of COMT inhibitors?
- Entacapone: Red-brown urine
- Tolcapone: Hepatotoxicity
- Increases sympathetic side-effects: increase in CVD side-effects
Parkinson’s disease
What are some side-effects of ergot derived dopamine receptor agonists?
- Pulmonary reactions: SOB, chest pain, cough
- Pericardial reactions: Chest pain
Parkinson’s disease
What are some examples of ergot derived dopamine receptor agonists?
- Bromocriptine
- Cabergoline
Psychosis & Schizophrenia
What are the types of symptoms in schizophrenia?
- Positive symptoms
- Negative symptoms
Psychosis & Schizophrenia
What are some positive symptoms of schizophrenia?
- Delusions
- Disorganisation
- Hallucinations
Psychosis & Schizophrenia
What are some negative symptoms of schizophrenia?
- Social withdrawal
- Neglect
- Poor hygiene
Psychosis & Schizophrenia
Can an antipsychotic be used in a patient with Parkinson’s disease?
No
Has the opposite effect
Psychosis & Schizophrenia
What are the types of antipsychotic drugs?
(1) 1st gen
- Phenothiazines (Group 1/2/3)
- Thioxanthenes
- Butyrophenones
(2) 2nd gen
Psychosis & Schizophrenia
How many groups of phenothiazines are there?
3 groups
Psychosis & Schizophrenia
(1) What are the groups of phenothiazines? (2) Describe their sedative effect. (3) Describe their extrapyramidal side-effects (EPSEs) significance.
Group 1: Most sedation. Moderate EPSEs.
Group 2: Moderate sedation. Least EPSEs.
Group 3: Moderate sedation. High EPSEs.
Psychosis & Schizophrenia
(1) What are some examples of thioxanthenes? (2) Describe the sedation and extra-pyramidal side-effects (EPSEs).
(1)
- Flupentixol
- Zuclopenthixol
(2) Moderate sedation & EPSEs
Psychosis & Schizophrenia
What are some examples of butyrophenones?
(1) Benperidol/ haloperidol
(2) Moderate sedations and high EPSEs
Psychosis & Schizophrenia
(1) What are some examples of butyrophenones? (2) Describe the sedation and extra-pyramidal side-effects (EPSEs).
(1) Benperidol/ haloperidol
(2) Moderate sedations and high EPSEs
Psychosis & Schizophrenia
What are some examples of group 1 phenothiazines?
- Chlorpromazine
- Levomepromazine
- Promazine
Psychosis & Schizophrenia
What are some examples of group 2 phenothiazines?
Pericyazine
Psychosis & Schizophrenia
What are some examples of group 3 phenothiazines?
- Fluphenazine
- Prochlorperazine
- Trifluoperazine
Psychosis & Schizophrenia
What are some examples of second generation anti-psychotics?
- Amisulpride
- Aripiprazole
- Clozapine
- Olanzapine
- Quetiapine
- Risperidone
Psychosis & Schizophrenia
Which second generation anti-psychotic has the least side-effects?
Aripiprazole
Psychosis & Schizophrenia
What are some anti-psychotic side-effects?
- EPSEs
- Hyperprolactinaemia
- Sexual dysfunction
- Cardiovascular side-effects
- Hypotension
- Hyperglycaemia
- Weight gain
- Neuroleptic malignant syndrome
Psychosis & Schizophrenia
In which group of antipsychotics are EPSEs most common?
Group 3 phenothiazines and butyrophenones
Psychosis & Schizophrenia
In which group of antipsychotics are EPSEs least common?
Second gen:
- Clozapine
- Olanzapine
- Quetiapine
- Aripiprazole
Psychosis & Schizophrenia
What does hyperprolactinaemia lead to?
- Sexual dysfunction
- Reduced bone density
- Menstrual disturbances
- Breast enlargement
- Galactorrhoea (milky nipple discharge, unrelated to breastfeeding)
- Increased risk of breast cancer
Psychosis & Schizophrenia
In which antipsychotic is hyperprolactinaemia least common?
Aripiprazole
Psychosis & Schizophrenia
In which antipsychotics is hyperprolactinaemia most common?
- First gen
- Risperidone
- Amisulpride
- Sulpride
Psychosis & Schizophrenia
In which antipsychotics is sexual dysfunction common?
All antipsychotics
Psychosis & Schizophrenia
Which antipsychotics have the highest prevalence for sexual dysfunction?
- Risperidone
- Haloperidol
- Olanzapine
Psychosis & Schizophrenia
Which antipsychotics have the lowest prevalence for sexual dysfunction?
- Aripiprazole
- Quetiapine
Psychosis & Schizophrenia
(1) Which cardiovascular side-effect is most common in antipsychotic treatment? (2) Which antipsychotic drugs cause this most?
(1) QT prolongation
(2)
- Pimozide
- Haloperidol
Psychosis & Schizophrenia
Which antipsychotics are most likely to cause hypotension?
- Clozapine
- Quetiapine
Psychosis & Schizophrenia
Which antipsychotics are most likely to cause hyperglycaemia?
- Clozapine
- Olanzapine
- Risperidone
- Quetiapine
Psychosis & Schizophrenia
Which antipsychotics are most likely to cause weight gain?
- Olanzapine
- Clozapine
Psychosis & Schizophrenia
(1) What should be done if a patient taking antipsychotics develops Neuroleptic Malignant Syndrome? (2) How should this be treated? (3) How long should this take to resolve?
(1) Stop treatment
(2) Treat with bromocriptin
(3) Should resolve in 5-7 days
Psychosis & Schizophrenia
What are the monitoring requirements for antipsychotics?
- Weight
- Fasting blood glucose + HbA1c + blood lipid concentrations
- ECG
- Blood pressure
- FBCs + U&Es + LFTs
Psychosis & Schizophrenia
How frequently should weight be monitored in antipsychotic treatment?
- Upon initiation
- Weekly for first 6 weeks
- At 12 weeks
- At 1 year
- Then yearly
Psychosis & Schizophrenia
What contraindications are there for clozapine?
- Seizures
- Uncontrolled diabetes
Psychosis & Schizophrenia
When is clozapine used?
Resistant schizophrenia
Only used when 2+ antipsychotics (inc. one 2nd gen) has been used for 6-8 weeks
Psychosis & Schizophrenia
(1) What are the monitoring requirements for clozapine? (2) How frequently should this be done?
(1) Leucocytes + differential blood counts
(2) Weekly for 18 weeks, THEN fortnightly til one year, THEN monthly
Psychosis & Schizophrenia
What are some side-effects of clozapine?
- Myocarditis & cardiomyopathy
- Agranulocytes + neutropenia
- GI disturbances
Anxiety
Which type of medication is used for the acute treatment of anxiety?
Benzodiazepines
Anxiety
What is the chronic treatment of anxiety?
- SSRI: Sertraline, citalopram, escitalopram, fluoxetine
- Propranolol (alleviates physical symptoms only)
Anxiety
How is an overdose of benzodiazepines?
Flumazenil
Anxiety
What can overdose of benzodiazepines lead to?
Can induce hepatic coma
Anxiety
What are some long-acting benzodiazepines?
- Diazepam
- Aprazolam
- Chlordiazepoxide
- Clobazam
Anxiety
What are some short-acting benzodiazepines?
- Lorazepam
- Oxazepam
Anxiety
When are short-acting benzodiazepines preferred?
- Hepatic impairment
- Elderly
Anxiety
Which type of benzodiazepines (long or short) have a greater risk of withdrawal symptoms?
Short-acting
Therefore only use for 2-4 weeks
Anxiety
Give some examples of waht can be used concomitantly with benzodiazepines to increase risk of sedation?
- Alcohol
- CNS depressants
- CYP enzyme inhibitors
Anxiety
Which benzodiazepines ahve a legal driving limit?
- Clonazepam
- Oxazepam
- Lorazepam
- Diazepam
- Flunitrazepam
- Temazepam
(COLD FT)
Anxiety
What are some symptoms of benzodiazepine withdrawal?
- Anxiety
- Sweating
- Weight loss
- Tremor
- Loss of appetite
Anxiety
How can benzodiazepine withdrawal be managed?
(1) Convert to once nightly dose of diazepam
(2) Reduce by 1-2mg every 2-4 weeks (1/10th on larger doses)
ø Only withdraw further if patient has overcome any withdrawal symptoms
(3) Reduce further (by 0.5mg at end
Depression
What is depression?
A reduction of serotonin, dopamine, or noradrenaline at the synaptic cleft
Depression
What is the first line treatment for mild depression?
CBT
Depression
When are antidepressants indicated in treatment of depression?
Moderate-severe
Depression
What may a patient on treatment of depression experience in the first 1-2 weeks of pharmacological treatment?
Worsening of symptoms
Depression
How long should antidepressants be taken for before they are deemed to be ineffective?
4 weeks
(6 weeks in elederly)
Depression
How long should antidepressants be taken, after remission?
For 6 months - 2 years in recurrent
(1 year in elderly)
Depression
What is the first line treatment of depression?
SSRI
Depression
What are the second line treatment options for depression?
- Increase dose
- Change SSRI
- MIrtazepine
- MAO-I
- TCA/ venlafaxine (if severe)
Depression
What is the third line treatment for depression?
Addition of another class, such as lithium/ other antipsychotics
Depression
What is the treatment for severe refractory depression?
Electroconvulsive therapy
Depression
What are the types of effects of serotonin syndrome?
(1) Cognitive effects
(2) Autonomic effects
(3) Neuromuscular excitation
Depression
What are some cognitive effects of serotonin syndrome?
- Headache
- Agitation
- Hypomania
- Coma
- Confusion
Depression
What are some autonomic effects of serotonin syndrome?
- Sweating
- Hyperthermia
- Nausea
- Diarrhoea
Depression
What are the symptoms of neuromuscular excitation in serotonin syndrome?
- Myoclonus
- Tremor
- Teeth grinding
Depression
Which drugs can cause serotonin syndrome?
- SSRIs/ TCA/ MAOi
- Triptans
- Tramadol
- Lithium
- Linezolid
- Bupropion
Depression
Name some common SSRIs.
- Fluoxetine
- Citalopram
- Escitalopram
- Sertraline
Depression
Which SSRI is considered safest in patients with a history of cardiac events?
Sertraline
Depression
What is the SSRI of choice in patients under 17 yeras old?
Fluoxetine
Depression
What are some side effects of SSRIs?
- GI disturbances
- Weight gain (appetite)
- Sexual dysfunction
- Risk of bleed
- Insomnia
- QT prolongation (citalopram/ escitalopram)
Depression
Which SSRIs can cause QT prolongation?
- Citalopram
- Escitalopram
Depression
What are some common interactions for SSRIs?
(1) CYP enzyme inhibitors
- avoid grapefruit juice (increases plasma concentration)
(2) CYP enzyme inducers
- reduces effectiveness
(3) Drugs that cause QT prolongation
- amiodarone/ stall/ quinolones
(4) Drugs that cause increased risk of bleeding
(5) Hyponatraemia
- carbemazepine/ diuretics
(6) Serotonin syndrome
Depression
(1) Which antidepressant is better for agitated and anxious patients for treatment of depression? (2) Why?
(1) TCAs
(2) Sedating
Depression
Which TCA antidepressants are sedating?
- Amitriptyline
- Clomipramine
- Dosulepin
- Trazodone
Depression
Which TCA antidepressants are non-sedating?
- Imipramine
- Lofepramine
- Nortriptyline
Depression
What are some common side-effects of TCA antidepressants?
- Cardiac events
- Anti-muscarinic
- Seizures
- Hypotension
- Hallucinations
Depression
What are some interactions of TCAs?
- CYP enzyme inhibitors (avoid grapefruit juice)
- CYP enzyme inducers (reduces effectiveness)
- Drugs that cause QT prolongation
- Anti-muscarinic drugs
- Anti-hypertensive drugs
- Serotonin syndrome
Depression
What are some examples of MAOis?
- Tranylcypromine
- Phenelzine
- Isocarboxazid
- Moclobemide
Depression
Which MAOis can cause hepatotoxicity?
- Phenelzine
- Isocarboxazid
Depression
Can tranylcypromine and clomipramine be given together?
No, fatal
Depression
Which antidepressants have a washout period?
MAOis
Attention Deficit Hyperactivity Disorder
(1) Which type of formulation is preferred for treatment of ADHD? (2) Why?
(1) M/R
(2) Better pharmacokinetic profile, convenience, and improved adherence
Attention Deficit Hyperactivity Disorder
Do M/R formulations for treatment of ADHD need to be brand specific?
Yes
Attention Deficit Hyperactivity Disorder
What is the first line treatment for ADHD?
Methylphenidate (5yrs<)
Attention Deficit Hyperactivity Disorder
What is the alternative treatment option for ADHD, if first line treatment is unsuccessful after 6 weeks?
Lisdexamfetamine
Attention Deficit Hyperactivity Disorder
For treatment of ADHD, if lisdexamfetamine was helping but longer duration could not be tolerated, what can be used instead?
Dexamfetamine
Attention Deficit Hyperactivity Disorder
What is the treatment of ADHD in patients who are intolerant of both methylphenidate and lisdexamfetamine?
Atomoxetine/ guanfacine
Attention Deficit Hyperactivity Disorder
What is the second line treatment for ADHD in adults?
Atomoxetine
Attention Deficit Hyperactivity Disorder
What are some side-effects/ cautions for atomoxetine?
- QT prolongation
- Hepatotoxicity
- Suicidal ideation
- Sexual dysfunction
Attention Deficit Hyperactivity Disorder
What schedule are methylphenidate and lisdexamfetamine?
Schedule 2
Attention Deficit Hyperactivity Disorder
What are the phases of overdose of amphetamines?
(1) Wakefulness, excessive activity, paranoia, hallucination, hypertension
(2) Exhaustion, convulsions, hyperthermia, coma
Attention Deficit Hyperactivity Disorder
How does methylphenidate work?
CNS Stimulant
Attention Deficit Hyperactivity Disorder
What schedule is methylphenidate?
Schedule 2
Attention Deficit Hyperactivity Disorder
(1) What monitoring requirements are there for methylphenidate? (2) How frequently?
(1)
- Pulse
- BP
- Psychiatric symptoms
- Weight loss
- Height
(2) At initiation and then 6 monthly
Attention Deficit Hyperactivity Disorder
What are some important side effects of methylphenidate?
- High BP
- Tachycardia
- Arrhythmias
- Behavioural changes
- Drowsiness
- Sleep disorders
- Weight loss
- Growth retardation
Substance Dependence
How should mild alcohol withdrawal be managed?
Usually do not need assistance
Substance Dependence
Where should moderate alcohol withdrawal be managed?here
Community
Unless at high risk of withdrawal seizures/ delirium tremens
Substance Dependence
Where should severe alcohol withdrawal be managed?
Inpatient setting
Substance Dependence
How should delirium in alcohol withdrawal be managed?
Lorazepam
Substance Dependence
How should Wernicke’s encephalopathy in alcohol withdrawal be managed?
Thiamine (vit B1)
Substance Dependence
(1) How should alcohol dependence be managed? (2) How should withdrawal symptoms be managed?
(1) CBT/ acamprosate/ naltrexone
(2) Chlordiazepoxide/ diazepam (aslo can use carbemazepine/ clomethiazole)
Substance Dependence
(1) What is the first line treatment for nicotine dependence? (2) When should this be avoided?
(1) Varenicline
(2) CVD/ psychiatric illness/ epilepsy
Substance Dependence
(1) What is the second line treatment for nicotine dependence? (2) When should this be avoided?
(1) Bupropion
(2) Psychiatric illness, seizures, eating disorders, serotonin syndrome
Substance Dependence
What is the third line treatment for nicotine dependence?
NRT
Substance Dependence
Which script should opioid dependence treatment be prescribed on?
FP10MDA
Substance Dependence
In treatment of opioid dependence, how many missed doses are required for a patient to be referred back to a specialist?
3 or more missed doses
Re-titration needed
Substance Dependence
Should opioid dependence treatment be continued in pregnancy?
Yes
Substance Dependence
When should naloxone be presrcibed alongside opioid dependence treatment?
In high risk of overdose
Substance Dependence
Give pros and cons of buprenorphine vs methadone in opioid dependence treatment.
BUPRENORPHINE:
- less sedating than methadone
- milder withdrawal symptoms
- lower risk of overdose
METHADONE:
- Can be carefully titrated according to patient’s need
- causes QT prolongation
Migraines
What symptoms often accompany migraines?
- Nausea + vomiting
- Photophobia
- Phonophobia
Migraines
(1) What are some visual symptoms of migraines? (2) What are some sensory symptoms of migraines?
(1) Zigzag/ flickering lights, spots/ lines
(2) Pins/ needles, numbness
Migraines
What is the lifestyle advice for a migraine?
- maintain hydration, sleep + exercise
- avoid chocolate + wine
- relax after stress
- create a headache diary (to help identify triggers)
Migraines
What is the acute treatment of migraines?
Ibuprofen/ aspirin/ 5HT-1 agonist (preferably sumatriptan)
Migraines
When should a -triptan be taken for a migraine?
At start of HEADACHE not at start of aura
Migraines
How frequently can a -triptan be administered for migraines?
Can repeated after 2hrs (4hrs for naratriptan)
Migraines
(1) When are triptans contraindicated? (2) Why?
(1) Heart disease
(2) Cause constriction of blood vessels
Migraines
(1) For a migraine, when first line treatment options are not suitable, what can be used instead? (2) Why?
(1) Soluble paracetamol
(2) Faster acting, as it is already broken down (can also use any liquid preparation)
Migraines
Which antiemetics are most suitable in treatment of migraines?
Metoclopramide/ prochlorperazine
Migraines
What is the first line treatment for migraine prophylaxis?
Propranolol
Migraines
What is the second line treatment for migraine prophylaxis?
Amitriptyline
Migraines
What else can be used for migraine prophylaxis, if first and second line treatment options are unsuitable?
Sodium valproate/ pizotifen/ Botox
Migraines
What are the different types of headache?
- cluster
- migraine
- tension
Migraines
What is the acute treatment of cluster headaches?
SC sumatriptan
Migraines
What is the prophylactic treatment of cluster headaches?
Verapamil/ lithium/ prednisolone/ ergotamine
Migraines
What is the treatment for trigeminal neuralgia?
Carbamazepine
(Or pregabalin/ gabapentin)
Migraines
What is the treatment for a tension headache?
Paracetamol/ ibuprofen
Nausea & Vomiting
Which antihistamines can be useful in prevention of nausea and vomiting?
Cyclising/ promethazine
Nausea & Vomiting
Which antiemetics are most appropriate in postoperative nausea and vomiting?
5HT-3 receptor antagonist (e.g. ondansetron) or dexamethasone
Nausea & Vomiting
Which antiemetics are most appropriate in preoperative nausea and vomiting?
Lorazepam (short-acting)
Nausea & Vomiting
Which antiemetics are most appropriate in motion sickness nausea and vomiting?
Hyoscine hydrobromide
Nausea & Vomiting
Which antiemetics are most appropriate in nausea and vomiting associated with a terminal illness?
Haloperidol/ levomepromazine
Nausea & Vomiting
Which antiemetics are most appropriate in nausea and vomiting in a patient with Parkinson’s disease?
Domperidone
Pain Management
What is the treatment for mild pain?
Non-opiates
Paracetamol/ NSAIDs/ aspirin
Pain Management
What is the treatment for mild-moderate pain?
Weak opiates (codeine/ dihydrocodeine)
Moderate - tramadol
Pain Management
What are some cautions with tramadol?
- lowers seizure threshold
- serotonin syndrome
- increased risk of bleed
- psychiatric disorders
Pain Management
What is the treatment for moderate-severe pain?
Strong opiates
Morphine/ oxycodone/ fentanyl/ methadone/ buprenorphine
Pain Management
What is the treatment for neuropathic pain?
- TCAs (amitriptyline/ nortriptyline)
- antiepileptics (gabapentin/ pregabalin)
- opiates (tramadol/ morphine/ oxycodone)
- topical localised (lidocaine/ capsaicin)
Pain Management
What are the main side effects of opiates?
- dry mouth
- constipation
- CNS depression
- nausea and vomiting
- hypotension
- miosis (pupil constriction)
Pain Management
What issues can prolonged opioid use contribute to?
- hypogonadism
- adrenal insufficiency
- hyperalgaesia (pain sensitivity)
Pain Management
What opioid dose can be used for breakthrough pain?
1/6th to 1/10th of total daily dose
Every 2-4 hours
Pain Management
What are the main contraindications for use of opioids?
- respiratory depression
- head injury
- paralytic ileus
Pain Management
What is the maximum dose that methadone should be decreased to when switching to buprenorphine?
30mg
Pain Management
Which is more potent, oxycodone or morphine?
Oxycodone
More appropriate in patients who can’t consume large quantities due to nausea
Pain Management
When should a fentanyl patch be removed if there are signs of toxicity?
Immmediately
Pain Management
What effect can temperature have on fentanyl patches?
Concentrations may increase if skin temperature increases
Pain Management
(1) In what age groups can codeine be used? (2) What about codeine linctus?
(1) >12yrs old - >18yrs old if tonsils removed due to sleep apnoea
(2) >18yrs old
Pain Management
Which ethnicity is known to be at increased risk of being ultra-rapid metabolisers of codeine?
Afro-Caribbean
Pain Management
(1) In which ethnicity should codeine be avoided/ used with caution? (2) Why?
(1) Afro-Caribbean
(2) Risk of toxicity if ultra-rapid metabolisers
Pain Management
Can codeine be used in breastfeeding patients?
No
Avoid
Pain Management
Which pathway do opioids act on?
Mu pathway