Bipolar Flashcards
What are the stages of bipolar?
-Mania
-Hypomania
-Depression
-Mixed episodes
What does it mean when a mood is euthymia?
Stable
A patient presents with increased activity, rapid speech, elevated mood and insomnia, what can this be an example of?
Drug Induced Mania
What medications can induce mania?
-Hallucinogens - LSD
-CNS stimulants - Amphetamine, Caffeine
-Antidepressants - Depression to mania
-Antipsychotics
If someone is having a manic episode what should be stopped?
Antidepressants and stimulants
What medications should be commenced during Mania?
Benzodiazepines, Antipsychotics
When can hypnotics/sedatives be used in mania?
When sleep deprivation is likely to escalate manic behaviour
What anti-psychotic must start with a slow dose due to the risk of postural HTN?
Quetiapine
What medication can you not give benzo’s within an hour of short-acting IM?
Olanzapine
Does smoking interact with Olanzapine?
Yes
What medications are first lime for Mania/Hypomania, acute phase?
-Lithium
-Valproate
-Olanzapine
-Quietiapine
-Aripiprazole
What medications are first like for mania/hypomania relapse prevention?
-Lithium
-Valproate
-Olanzapine
-Quietiapine
-Aripiprazole
What medications are second line for mania/hypomania acute phase? *Licensed?
-Carbamazepine
-Risperidone
-Asenapine
What medications are second like for mania/hypomania? Relapse prevention? *Licensed?
-Carbamazepine
-Risperidone
What medications are First line licensed for Acute Bipolar Depression?
-Lithium
-Quetiapine
What medications are Second line licensed for Acute Bipolar Depression?
Carbamazepine
What medications are First line licensed for Relapse prevention Bipolar Depression?
-Lithium
-Quetiapine
What medications are second line licensed for Relapse prevention Bipolar Depression?
Carbamazepine
What medication has a rare but serious side effect of Stevens-Johnson Syndrome (SJS)?
Lamotrigine = Skin!!!
If antidepressants are used in bipolar they should be combined with what in order to be safe?
Mood stabilisers
What is the standard drug combination for Bipolar Mania?
Antipsychotic and/or mood stabiliser + benzodiazepines
What is the standard drug combination for Bipolar Depression?
Lithium, lamotrigine or valproate, quetiapine, risperidone or olanzapine
What is the standard drug combination used for relapse prevention?
Mood stabilisers + Antidepressants
OR
Lamotrigine + Antidepressants
What are the worst mood stabilisers in pregnancy?
-Lithium
-Carbamazepine
-Valproate
What are the worse mood stabilisers in hepatic impairment?
-Lamotrigine
-Valproate
-Carbamazepine
What are the worst mood stabilisers in renal impairment?
-Lithium
-Sulfiride
-Amulsuride
-Lamotrigine
If a patient has had symptoms of an episode for 7+ days, has severe functional impairment and have psychotic features, what is this?
Mania
If a patient has elevated and irritable mood for 4 days or more, and a decreased or increased function without Psychotic features what is this?
Hypomania
What medication is gold standard for relapse prevention in Bipolar?
Lithium
Why isn’t lithium used in mania?
It takes 5-7 days to kick in
What neurotransmitters production and turnover are modified by lithium?
-Serotonin
-May block Dopamine receptors
Is lithium BRAND specific?
YES!
What strength is Priadel liquid (Lithium) ?
520mg/5ml
What can Lithium do to a patients ECG?
QT interval prolongation
What physical monitoring needs to be done before initiating treatment on Lithium?
-ECG
-Renal function
-Thyroid
-Weight/BMI
-Ca
-U&E’s
-FBC
What is lithium excreted via?
The Kidneys
How often do plasma levels need to be taken on lithium?
Weekly until stable
When should plasma levels be taken after a dose change of lithium?
4-7 days after each dose change
What is the lithium range?
0.4-1 mmol/L
What is the lithium range in mania?
0.8
What is the usual dose range of lithium?
400mg-1.2g daily
If a patient is less than 50kg should we avoid lithium?
YES
What drug can make you gain up to 27kg?
Lithium
If you get swollen ankles when on lithium what should we do?
Dose reduction
If a patients lithium levels are over 1.5 what does this mean?
May be fatal and have a toxic effect
If lithium levels are over 2mmol/L what should we do?
Requires URGENT medical attention! = Kidney damage
Pt X, presents with severe hand tremor, stomach ache and n&d, Muscle weakness, unsteady, slurring, blurred vision, confused, usually sleepy and has muscle twitches, what drug can cause this?
Lithium Toxicity
What can severe toxicity of lithium cause?
-Convulsions
-Coma
-Renal and circulatory failure
-Hyperreflexia
-Toxic Psychoses
Do ACE inhibitors increase or decrease lithium levels?
INCREASE
Do ARB’s increase or decrease lithium levels?
INCREASE
Do COX 2 inhibitors increase or decrease lithium levels?
INCREASE
Does Metronidazole increase or decrease lithium levels?
INCREASE
Do SSRI’s increase or decrease lithium levels?
INCREASE
Do Diuretics and Aldosterone antagonists increase or decrease lithium levels?
INCREASE
Does Caffeine increase or decrease lithium levels?
Decrease
Does sodium bicarbonate increase or decrease lithium levels?
Decrease
Can a patient have Lithium and Amiodarone together?
AVOID
If sodium levels are depleted what can this do to Lithium and why?
Increases Lithium conc due to competitive reabsorption at the renal level
Once a patient is on lithium and stable how often should their bloods be checked?
3 monthly