Mood Stabilizers - Martin Flashcards
tx of acute mania and prevent mania in bipolar
lithium
use caution in pregnant
lithium
CI in pregnant
valproic acid
divalproex
carbamazepine
agranulocytosis and aplastic anemia
rare - with carbamazepine
maintenance tx of bipolar
aripiprazole
olanzapine
tx of major depression with bipolar
olazapine and fluoxetine combom
quetapine
lurasidone
sedate agitated patient
benzos - lorazepam
lithium - 1-3 weeks to see clinical response
manic episode
period of abnormally and persistently elevated, expansive, or irritable mood and abnormally and persistently increased activity or energy
- lasting at least 1 week and present most of day
- nearly every day
need 1 lifetime manic episode - to diagnose bipolar disorder
lithium PK
kidney excretion
handled similar to sodium
reabsorbed prox tubes
MOA lithium
attenuate signaling via receptors coupled to PIP2 2nd messenger system
interferes resynthesis of PIP-2
depletion in neuronal membranes of CNS
-no effect on peripheral membranes
disrupts IP3/DAG intracellular signaling
also inhibit glycogen synthase kinase-3
lithium and valproate
take days to weeks to become effective
acute manic patient
antipsychotic and benzo tx
tx of depression in bipolar pt
lithium protect against suicide and self harm
maintenance therapy of bipolar
lithium alone or in combo with valproate, carbamazepine, or lamotrigine
-decreased risk of recurrent manic and depressive episodes
long acting risperidone IM every 2 weeks
approved for maintenance therapy of bipolar
frequent relapse or poor adherence patients
before tx with lithium
kidney function test
-creatinine and urine specific gravity
thyroid function
kidney fxn - 1-2x/year
lithium dosing
narrow therapeutic window
signs of lithium toxicity
tremor** dysarhria delirium coma seizures autonomic instability
dehydration
increases lithium reabsorption
-lead to toxicity
monitor lithium plasma levels
every 3 months initially
every 6-12 months once stabilized