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46 Cards in this Set
- Front
- Back
FDA indications: Lithium
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mania associated w/ bipolar d/o
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Valproic acid
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-mania associated w/ bipolar d/o
-migraine prophylaxis -epilepsy |
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Carbamazepine
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-bipolar d/o (Equetro only)
-trigeminal neuralgia -epilepsy |
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Lamotrigine
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-long-term maintenance treatment of bipolar I d/o
-adjunctive treatment of partial szrs -lennox-gastaut syndrome -conversion to monotherapy in adults w/ partial szrs |
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What types of patients may lithium be most effective in?
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1)pure mania
2)fewer prior epsodes 3)hx of euthymia 4)lacking neurological impariment 5)lacking psychotic sxs 6)no hx of substance abuse |
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valproic acid may be most effective in what type of patients?
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1)rapid cyclers
2)mixed mania 3)mania due to medical conditions |
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carbamazepine may be most effective in what type of patients?
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1)rapid cyclers
2)mixed episodes 3)neurological disease 4)negative FH of mood d/o |
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lithium adverse effects (6)
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1)weight gain
2)leukocytosis 3)diabetes insipidus/polyuria 4)hypothyroidism 5)cardiac dysrhythmias 6)hand tremor |
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VPA adverse effects (7)
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1)hepatotoxicity
2)pancreatitis 3)polycystic ovarian syndrome 4)thrombocytopenia 5)GI upset 6)sedation 7)weight gain |
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carbamazepine adverse effects (9)
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1)aplastic anemia
2)agranulocytosis 3)thrombocytopenia 4)leukopenia 5)nystagmus 6)ataxia 7)blurry vision 8)stevens-johnson syndrome/rash 9)hyponatremia |
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lamotrigine adverse effects (5)
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1)rash
2)tremor 3)dizziness 4)HA 5)sedation |
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Lithium drug interactions
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increase lithium levels= ACEI, ARBs, diuretics, sodium depletion
decrease lithium levels= NaHCO3, NaCl, theophylline, caffeine |
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this NSAID has little effect on lithium clearance
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aspirin
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this agent may increase risk of neurotoxicity when used with lithium
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haloperidol
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VPA drug interactions
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1)lamotrigine-decrease VPA levels, increase lamotrigine
2)warfarin-increase INR |
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CBZ drug interactions
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decreases levels of:
1)oral contraceptives 2)anticoagulants 3)BZDs, bupropion, barbiturates 4)antipsychotics 5)anticonvulsants |
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lamotrigine drug interactions
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1)valproic acid-inhibits metabolism of lamotrigine=may increase lamotrigine concentrations by 200%
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if taking VPA concurrently w/ lamotrigine, what dosing adjustment should be made?
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cut lamotrigine dose in 1/2 and titrate slowly to avoid rash
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Lithium drug monitoring
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1)upon initiation-level taken 12hrs after last dose q4-5d
2)lithium levels indicated 5-10d after dosing changes,etc. 3)baseline: thyroid function tests, renal function tests, CBC, electrolytes, weight, EKG 4)followup: serum drug levels, renal/thyroid function tests, wt, and CBC monthly x 1st 3 months then q6-12months |
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VPA monitoring
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1)baseline=chem-7, LFTs, CBC, weight
2)followup=serum druglevels, LFTs, CBC, weight monthly x 1st 3 months then q6-12months 3)amylase and lipase levels periodically |
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carbamazepine monitoring
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1)baseline=CBC w/diff, chem-7, LFTs, CBZ level
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agent associated with epstein's anomaly during first trimester
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lithium
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lithium is widely distributed through tissues including...?
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kidney, thyroid, bone
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agent that has no protein binding and is not metabolized
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lithium
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onset of action is 7-10d
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lithium, CBZ (NOT VPA)
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desired lithium serum concentration
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0.6-1.2mEq/L
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this agent has rapid distribution into the CNS and is 90-95% protein bound
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VPA
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VPA recommended plasma level
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50-125mcg/mL
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this agent has been found to have acute antimanic, antidepressent, and prophylactic effects comparable w/ lithium in bipolar d/o
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CBZ
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effect of CBZ clearance with chronic therapy
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due to autoinduction, CBC clearance can double w/ chronic therapy
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mood stabilizers that are sedating
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lithium, VPA, CBZ
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mood stabilizers that precipitate weight gain
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lithium, VPA
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mood stabilizers that cause sexual dysfunction
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lithium
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CBZ recommended plasma level
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6-12mcg/mL
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When should CBZ be d/c?
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platelets are <100,000/mm3 or WBC <3000/mm3
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antipsychotics that have achieved FDA approval for treatment of acute episodes of mania
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risperidone, quetiapine, ziprasidone, aripiprazole
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antipsychotics used for bipolar maintenance therapy
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olanzapine
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management of an acute episode of mania
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mood stablizer + BZD +/- atypical AP
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role of BZDs in acute mania
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-adjunctive treatment
-useful in minimizing agitation, anxiety, and insomnia |
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what BZD may worsen mania
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alprazolam
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1st line antidepressants in bipolar depression
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bupropion and SSRIs
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what antidepressants have the greatest potential to precipitate mania?
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TCAs
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use of antidepressants for patients who develop acute mania
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d/c antidepressant
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what must be done before the addition of an antidepressant in bipolar depression?
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maximize dose of mood stabilizer
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what should be evaluated in bipolar depression?
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thyroid function
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these agents should be tapered and discontinued once the patient is stabilized
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BZDs and antidepressants
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