Bipolar Disorder Flashcards
Types of bipolar disorder?
Bipolar I
Bipolar II
Cyclothymic disorder (where the criteria for depression or mania are not fully met)
Which type is the most severe version of bipolar?
Bipolar I disorder
What’s mania xterized by?
Elevated mood where pts have a lot of energy
Sx of mania in bipolar I can be so severe that they may req psychiatric hospitalization, impair social or occupational functioning or have features of psychosis such as hearing voices or delusions (false beliefs)
Difference btw bipolar I and II?
Bipolar II has the same sx as bipolar I, however sx are described as “hypomania” bcuz they are less severe than in pure mania
What’s hypomania?
Will not affect social or occupational fxning and pts with bipolar II will not require hospitalization for hypomania or have psychotics features
What’s the first like for treating mania and maintaining a stable mood?
Mood stabilizers (lithium, valproate, lamitrigine)
AND
2nd gen anti-psychotics (SGAs)
What’s a mood stabilizer?
By definition, a mood stabilizer is a med that can treat either mania or depression without inducing either.
T/4 antidepressants are not considered mood stabilizers
Which of the SGAs have NO indications for bipolar mania?
CLIP
Clozapine
Lurasidone
Iloperidone
Paliperidone
Which SGAs have an indication for bipolar DEPRESSION?
Lurasidone
Why are first gen antipsychotics no longer used for mania?
Pts with bipolar are more susceptible to EPS and FGAs have an increased risk of causing EPS
What does the most current guidelines recommend?
Either a mood stabilizer, SGAs or a combo of mood stabilizer + SGAs
If psychotic features are present, what’s reasonable to start with?
SGAs
What meds have a role as adjunctive therapy in depression and can also be used for mania and maintenance?
Aripiprazole
Quetiapine ext-release
Uses of Lamotrigine?
Used in bipolar DEPRESSION and maintenance, however is not beneficial in mania dut to SLOW TITRATION
Uses of lithium?
Mania, depression and maintenance
More commonly used in combo with SGAs in severe cases
Whats valproate and carbamazepine approved for?
Bipolar MANIA
When is antidepressant used in bipolar?
When the pt is already on mood stabilizer
What class of meds used in bipolar req medguides?
Antidepressants, anticonvulsants, antipsychotics
Whats the preferred mood stabilizer during pregnancy?
Lamotrigine (Cat. C)
Should mood stabilizers (even Lamotrigine that’s preferred) be avoided during 1st trimester?
Yes, if possible
The SGAs are approved for pregnancy (Category C), which SGAs is cat B?
Lurasidone
Effect of lithium in pregnancy?
Ass with increase in congenital cardiac malformations
Effects of valproate in pregnancy?
Increased risk of fetal anomalies, including neural tube defects, fetal valproate syndrome and long-term adverse cognitive effects
It should be avoided in preg, esp 1st trimester
Effects of CBC in pregnancy?
Fetal CBZ syndrome
Which antidepressant should NOT be used, if an antidepressant is needed in pregnancy?
Paroxetine (due to risk of cardiac defects)
How do u rule out illicit drug use from bipolar mania?
Toxicology screen should be taken prior to start of tx and as needed, to rule out mania due to illicit drug use
MOA of Valproic acid/Valproate
T-type Ca channel blocker and fast Na channel blocker that increases gamma-aminobutyric activity (GABA), an inhibitory neurotransmitter
What’s the brand name of Valproic acid/Valproate?
Depakene
Stavzor (delayed-release)
Depacon
What’s the brand name of Divalproex?
Depakote
Depakote ER
Depakote Sprinkle (also used for migraine prophylaxis)
Whats the range of acceptable serum levels to maintain while on Valproic acid/valproate/ Divalproex?
50-125 mcg/mL
Can Depakote ER be substituted for Depakote (delayed release)?
Can’t substitute Depakote ER for delayed release Depakote
Need to increase Depakote ER by 8-20%
What do you do if albumin is low? (<3.5)
Adjust using phenytoin formula (bcuz true valproate level will be higher than it appears)
What’s the blackbox warning of Valproic acid/valproate/ Divalproex?
PTH
Pancreatitis
Teratogenicity
Hepatic failure
What may be used as supplementation when using Valproic acid/valproate/ Divalproex?
Calcium and Vit. D
What may reduce stomach upset associated with Valproic acid?
Switch to delayed release Divalproex (Depakote) may reduce stomach upset
Because valproate is a weak inhibitor of 2C9, what drug level may be increased if co-admin?
Carbamazepine
Lamotrigine
Phenobarbital
Warfarin
Zidovudine